Tomba

A developer email API with ten SDKs and plans from $49 a month

Tomba is a developer-oriented email finding, verification, and enrichment API that crawls the public web for published contact data, exposes fourteen documented endpoints with ten official open-source SDKs, and sells credits on named monthly plans from 49 dollars for 5,000 credits, charging one credit per valid email, five per phone lookup, and nothing at all when a search returns no valid result.

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Overview

Tomba is what Hunter would look like if it had been built in 2021 by people who cared more about the API than the interface. Founded that year and registered in Claymont, Delaware, it does the same fundamental job: crawl the open web, index the email addresses companies publish about themselves, infer each company's naming pattern, and answer the question of what a given person's work address is. The vendor claims to crawl more than two billion pages a month and to hold over 450 million verified contacts across 80 million indexed companies.

The difference is in how it is packaged. The pricing page is a volume slider over named plans: Basic at 49 dollars a month for 5,000 credits, Growth at 89 for 10,000, Pro at 199 for 40,000, and larger Pro Plus and Scale steps, with an annual-contract Enterprise tier at 2,499 a month. Every plan splits its credits evenly between finder and search credits and verification credits. The same block can be bought as a one-time purchase rather than a subscription, which is unusual and genuinely useful for a project with a finite list.

The billing rules are stated plainly and they are the right ones. A search that cannot produce a valid email is free. A duplicate search inside the same month costs nothing. An email found costs one credit. A phone lookup costs five. Verification is one credit but comes bundled in quantity. That puts Tomba firmly among the vendors who charge on success only, alongside Hunter, Anymail Finder, BetterContact, FullEnrich, and Dropcontact, and clearly apart from RocketReach, ContactOut, Datagma, Icypeas, and Enrich, all of which decline to publish what happens to your credit when a lookup fails.

What Tomba is really selling is API surface. Fourteen endpoints cover domain search, email finder, email verifier, author finder, LinkedIn finder, phone finder, company enrichment, email enrichment, domain similarity, company reveal, email count, email format, employee location distribution, and website technology detection, plus drop-in replacements for the person, company, and combined endpoints that Clearbit used to serve. Ten official SDKs, all open source, cover Python, Node.js, PHP, Ruby, Go, Java, Dart, Lua, R, and Elixir. The vendor advertises sub-200 millisecond average response times and a 99.9 percent uptime commitment. For a small team building enrichment into a product rather than clicking through a browser, that is a materially different proposition from anything else in this batch.

Best for

Developers and technical small teams building email finding, verification, or enrichment into their own product or internal tooling, and high-volume buyers who want the per-thousand price to fall as volume grows.

Not the right fit for

Non-technical salespeople who want a polished browser workflow; Tomba has an extension and a web app, but the product's centre of gravity is the API and the interface is thinner than Skrapp's, SalesQL's, or GetProspect's.
Anyone whose primary need is phone numbers; at five credits each a mobile costs roughly 0.0445 dollars, which is fine occasionally and poor value against SalesQL's single-credit pool if calling is the main channel.
Teams wanting a searchable people database they can filter by title, seniority, and headcount to discover who to contact; Tomba answers questions about people and companies you can already name.
Buyers who need a bundled sequencer or CRM; Tomba finds and verifies and then hands the data to something else, with no outreach layer of its own.
Organisations with a procurement process requiring published API rate limits, SSO, data residency choices, or a documented GDPR legal basis; Tomba publishes an uptime figure and a compliance claim rather than the underlying detail.

How it works

1
Tomba crawls the public web at scale, indexing email addresses published on company sites, team pages, press material, blog bylines, and similar sources, then infers each company's email naming convention from what it observed.
2
You call Domain Search with a company domain to get the addresses Tomba holds for it, or Email Finder with a name plus a domain to get the single most likely address. Author Finder resolves the address behind a blog post or article, and LinkedIn Finder resolves one from a LinkedIn profile URL.
3
Every returned address passes through the verifier before it is charged. If Tomba cannot produce a valid result, the search is free, and repeating the same search within the same month is free as well, so the credits you spend map to distinct valid results.
4
Phone Finder resolves a phone number from an email address at a cost of five credits, which makes the phone the expensive data type in the model rather than a rationed separate meter.
5
Enrichment endpoints attach company and person attributes to a domain or an address, and a set of company intelligence endpoints cover technology detection, employee geographic distribution, similar-domain discovery, and departmental email counts.
6
Access is through the REST API with header authentication using a key and secret pair, through one of ten official open-source SDKs, or through the browser extension and web interface for people who would rather not write code.

Feature breakdown

29 features in 5 modules

Finding email addresses

Four different ways in, all charged only on a valid result.

Domain Search: Supply a company domain and receive the addresses Tomba has indexed for it, drawn from a crawl the vendor describes as covering more than two billion pages a month.
Email Finder: A name plus a domain returns the single most likely work address, combining directly observed data with the company's inferred naming pattern, at one credit per valid result.
Author Finder: Resolves the email address behind a blog post or article URL, which is a genuinely distinctive endpoint for anyone doing content-led or PR outreach and one almost no competitor exposes.
LinkedIn Finder: Takes a LinkedIn profile URL and returns an email address through the API rather than through a browser extension, which suits automation better than an extension-based tool.
Email Format: Returns the naming convention a company uses, so you can derive addresses yourself for people Tomba has not directly observed.
Email Count: Statistics on how many addresses Tomba holds for a domain, broken down by department and seniority, which is a cheap way to qualify a target account before spending credits on it.

Verification and phone lookup

Verification bundled generously, phone data priced as the premium it is.

Email Verifier: Deliverability checking as its own endpoint, with a typical configuration bundling 5,000 verification credits alongside 5,000 finder credits at no extra charge.
Verification at no marginal cost in the standard bundle: Because verification credits arrive alongside finder credits in the advertised configuration, list hygiene does not compete with lookups for budget the way it does on single-pool vendors.
Phone Finder: Resolves a phone number from an email address at five credits per lookup, roughly 0.0445 dollars, making phones about five times the cost of an email rather than a separately rationed allowance.
Phone Validator: Validates a phone number at one credit, so a number of unknown provenance can be checked cheaply before dialling.
Claimed accuracy: The vendor advertises 99 percent accuracy and a bounce rate under 5 percent. These are marketing figures without a contractual guarantee attached, unlike Anymail Finder's written delivery commitment.

Enrichment and company intelligence

The endpoints that make Tomba more than an email finder, including explicit Clearbit replacements.

Company Enrichment: Returns firmographic detail from a domain, covering the account research step before a list is built.
Email Enrichment: Returns full contact attributes from an address, which is the reverse lookup a signup form or CRM record usually needs.
Clearbit-compatible endpoints: Person, company, and combined endpoints published explicitly as Clearbit alternatives, which shortens migration for anyone stranded by Clearbit's absorption into HubSpot.
Technology Checker: Identifies the technologies a website runs, giving a technographic signal without a separate vendor such as BuiltWith or Wappalyzer.
Domain Similar and Company Reveal: Finds comparable companies to a given domain and returns fuller company intelligence, which supports lookalike account building.
Location endpoint: Returns the geographic distribution of a company's employees, useful for territory qualification before outreach.

Developer experience

The reason to choose Tomba over any of its interface-first rivals.

Ten official open-source SDKs: Python, Node.js, PHP, Ruby, Go, Java, Dart, Lua, R, and Elixir, all published on GitHub, which is broader language coverage than any other vendor in this category offers.
Fourteen documented endpoints: A properly enumerated API surface rather than a handful of lookups with an API bolted on.
Key and secret authentication: Header-based authentication using a paired X-Tomba-Key and X-Tomba-Secret, which is a slightly stronger scheme than a single bearer token.
Performance and uptime claims: Sub-200 millisecond average response times and a 99.9 percent uptime SLA are advertised, though per-second and per-minute rate limits are not published.
75 free API credits on signup: No card required, which lets a developer test the endpoints against real data before any commitment.
Browser extension and web app: A non-developer path exists for people who need to look something up by hand, though it is not where the product's attention has gone.

Pricing mechanics

A calculator instead of a ladder, with the honest billing rules stated on the page.

Flat per-thousand pricing: Named plans from Basic at 49 dollars for 5,000 credits to Pro at 199 dollars for 40,000 and larger Scale steps, with the price per thousand falling from 9.80 to under 5 dollars as volume rises.
No charge on a failed search: If Tomba cannot find a valid email, the search is free, which makes the per-credit price a true cost per valid result.
Free duplicate searches: Repeating the same search inside the same month costs nothing, so re-running a workflow does not double-charge you.
Twelve-month validity on one-time credits: Pay-as-you-go credits stay valid for a year from purchase; subscription credits last the billing period (a month on monthly plans, a year on yearly plans), so the yearly plan and one-time blocks avoid the monthly reset used by CUFinder and most of this category.
One-time purchase option: The same credit block can be bought once rather than as a subscription, which suits a finite project and is rare among vendors here.
Three months free on annual billing: The annual option is a straightforward twenty-five percent equivalent discount rather than a repriced tier.

Use cases

4 documented

Developer adding enrichment to a SaaS signup flow

A work email arrives at signup and the product needs the company, headcount, and technology stack attached before routing the account.

Email Enrichment, Company Enrichment, and Technology Checker cover it in three calls through an official SDK, credits are spent only on valid results, and on yearly billing or one-time blocks the credits last twelve months, so a slow month does not waste the budget.

Team migrating off Clearbit

Clearbit's absorption into HubSpot has left an integration that has to move, and rewriting it against a differently shaped API is not a welcome project.

Tomba publishes person, company, and combined endpoints explicitly as Clearbit alternatives, which turns a rewrite into a remapping and gives a published per-thousand price where Clearbit's replacement does not.

Agency running a one-off list build

A single client project needs 20,000 verified addresses over six weeks and then nothing, and a monthly subscription would be dead weight afterwards.

Credits are bought once as a one-time block, valid for a year, rather than as a recurring plan, so the project pays for itself and stops without a cancellation to remember.

Content marketer doing outreach to writers

The target list is a set of article URLs rather than a set of company domains, and normal email finders have no way in.

Author Finder resolves the address behind each byline directly, an endpoint essentially no competitor exposes, and unresolvable articles cost nothing.

Pricing

from $0 (25 free searches per month, plus 75 free API credits on signup), then $49 per month for 5,000 credits (Basic)

Named monthly credit plans on a volume slider, each split evenly between finder and verification credits, sold as a subscription (three months free on yearly billing) or as a one-time block, with an annual-contract Enterprise tier above.

Plan	Price	Includes
Free	$0 per month	25 searches per month 75 API credits on signup No credit card required Full endpoint access Enough for a developer to test all fourteen endpoints against real data before committing.
Basic	$49 per month for 5,000 credits (2,500 finder plus 2,500 verification)	2,500 finder and search credits 2,500 verification credits included Browser extension and full API access Phone finder at 5 credits per lookup The smallest paid plan, at $9.80 per thousand total credits.
Growth	$89 per month for 10,000 credits (5,000 finder plus 5,000 verification)	5,000 finder and search credits 5,000 verification credits included Browser extension and full API access Phone finder at 5 credits per lookup $8.90 per thousand total credits, the figure the pricing page leads with.
Pro and larger	From $199 per month for 40,000 credits; larger Pro Plus and Scale steps above	20,000 finder plus 20,000 verification credits on Pro Unit price falls with volume, to under $5 per thousand Monthly or one-time purchase Three months free on yearly billing The volume discount is real: Pro is about $4.98 per thousand total credits against $9.80 on Basic.
Enterprise	$2,499 per month, annual commitment required	Uncapped API access Security review and contract Everything in the largest Scale plan

Billing notes

Pricing is a ladder of named plans rather than a flat rate: Basic $49 for 5,000 credits, Growth $89 for 10,000, Pro $199 for 40,000, with larger steps above, so the price per thousand falls from $9.80 to under $5 as volume rises.
Every plan splits its credits evenly between finder and verification, so a plan's finder allowance is half its headline credits: Growth buys 5,000 email finds.
A search that cannot produce a valid email is free, and a duplicate search inside the same month costs nothing. That means the advertised per-credit price is a genuine cost per distinct valid result rather than a cost per attempt, placing Tomba with Hunter, Anymail Finder, Skrapp, GetProspect, SalesQL, BetterContact, FullEnrich, and Dropcontact, and against RocketReach, ContactOut, and Enrich.
Phone numbers cost five credits per lookup against one credit for an email. Phones are a multiplier on the same pool rather than a separately rationed meter as they are on Kaspr.
Credit validity is stated inconsistently on the vendor's own pages: the pricing hero and API page say credits are valid for twelve months, while the pricing FAQ says subscription credits last until the end of the billing period and only one-time purchases last a year. Confirm before relying on rollover.
Credits can be bought as a one-time block rather than a subscription, which suits finite projects and is rare in this category.
Yearly billing gives three months free, an effective twenty-five percent discount.
Seat counts are not published on the pricing page, so a team buying Tomba should confirm how many users a credit pool can be shared across before committing.

Value assessment: Tomba is the cheapest published per-unit price in this batch and one of the cheapest anywhere self-serve. At 1,000 verified emails a month the smallest plan, Basic at 49 dollars, is the floor, so small users pay about 0.049 per address, more than Skrapp at 0.0145. At 10,000 emails a month the Pro plan at 199 dollars covers it with 20,000 finder credits, about 0.02 per address at that volume and falling at the larger steps, which is competitive with Hunter's Growth tier at 149 euros. Phone numbers cost five credits each, several times SalesQL's single-credit pool. The honest summary is that Tomba is a good price per email at volume, an unremarkable one at small volume, and a middling price per phone, and it is worth the switch mainly if you are calling the API rather than clicking a button, because the interface does not justify the move on its own.

Entry price history

Entry price unchanged since 22 August 2026, last confirmed on 27 September 2026.

Checked	Entry price	What happened
27 September 2026	$49	Re-checked, unchanged
26 September 2026	$49	Not comparable with the previous figure. We had recorded a flat $8.90 per 1,000 credits at any volume; Tomba sells named plans on a slider, Basic $49 for 5,000 credits, Growth $89 for 10,000, Pro $199 for 40,000, so the unit changed from a rate to a plan price.
22 August 2026	$8.90	First recorded

Dates are when SaaSTracker checked the vendor’s published pricing, not when the vendor changed it. See the price changes log for movements across the whole database.

Strengths & limitations

Strengths

Per-thousand pricing that falls to under 5 dollars at the Pro plan and above, among the cheapest published per-email rates in this batch at volume.
Explicit and correct billing rules: no charge for a failed search, no charge for a duplicate search inside the same month, and one credit per valid email.
A one-time purchase option with twelve-month validity, so a finite project does not need a subscription it will forget to cancel.
Ten official open-source SDKs across Python, Node.js, PHP, Ruby, Go, Java, Dart, Lua, R, and Elixir, which is broader language coverage than any competitor here.
Fourteen documented endpoints including Author Finder and Technology Checker, which no other vendor in this batch exposes.
Published Clearbit-compatible person, company, and combined endpoints, which materially shortens a migration off a discontinued dependency.
Verification credits bundled in quantity alongside finder credits, so list hygiene does not compete with lookups for budget.

Limitations

The interface is a secondary concern; non-technical sales users will find Skrapp, SalesQL, or GetProspect better places to work.
Phone lookups at five credits are poor value against SalesQL's single-credit pool if calling is your main channel.
No searchable people database to filter by title and seniority, so Tomba answers questions about people you can already name rather than helping you decide who to contact.
No per-second or per-minute API rate limits are published, only an uptime figure and a response-time claim, which is a real gap for a product sold primarily on its API.
The 99 percent accuracy and sub-5-percent bounce claims are marketing figures with no contractual guarantee behind them.
Seat and team-sharing terms are not published, so a multi-user team is buying without knowing how the pool is shared.
Company transparency is thin: founded 2021, registered in Delaware, no published founders, headcount, or funding history, which is a weak position for a vendor asking to sit inside your product.
Coverage depends on what companies publish on the open web, so it is strong for technology, agencies, and media and noticeably weaker for manufacturing, trades, and privately held mid-market firms.

Head-to-head comparisons

5 alternatives

Tomba vs Skrapp.io

from $0 (Free, 50 credits), then $29 per month on annual billing (Professional)

Skrapp is the better browser product and Tomba is the better API. Skrapp gives you a searchable database, a strong LinkedIn extension, and two seats for 29 dollars, with credit sizes from 2,000 to 500,000. Tomba sells named plans from 49 dollars with prices per thousand that fall with volume, and ten SDKs. If a person is doing the clicking, take Skrapp; if code is doing it, take Tomba.

Full Tomba vs Skrapp.io comparison

Tomba vs Voila Norbert

from $0 (50 free finds on signup), then $39 per month on annual billing (Valet, $49 month-to-month)

Both are veteran-feeling web-crawl email finders that charge only for successful finds and roll credits over. Norbert is more expensive per unit, 49 dollars for 1,000 leads against Tomba's 49 dollars for 2,500 finder credits, but includes unlimited team members, a bundled sequencer product, and separately priced verification at 0.003 dollars an email that undercuts Tomba's bundled model at very large list sizes. Take Norbert if you want unlimited seats and cheap standalone verification; take Tomba if per-email cost and API depth are what you are buying.

Full Tomba vs Voila Norbert comparison

Tomba vs Exa

from $0 ($10 in free credits each month plus a one-time $10 onboarding bonus), then $7 per 1,000 searches

Both are API-first with published usage pricing, but they answer different questions. Exa searches the live web semantically and enriches what it finds, at 7 dollars per thousand searches with contact enrichment at 0.02 for an email and 0.07 for a phone. Tomba queries a pre-built index of published addresses at roughly 1 to 5 cents per email depending on plan size. Exa is better when you do not yet know which companies you want; Tomba is much cheaper once you do.

Full Tomba vs Exa comparison

Tomba vs Hunter

from 0 euros (Free, 50 credits per month), then 49 euros per month (Starter)

The same product concept a decade apart. Hunter has the index depth, per-result public source citations, published per-second rate limits, unlimited seats, and a bundled sender, at 149 euros for 10,000 credits. Tomba does 10,000 for 89 dollars, ships ten SDKs against Hunter's handful, exposes endpoints Hunter does not, and sells credits as a one-time block. Choose Hunter when provenance or documented rate limits matter; choose Tomba when unit price and API breadth do.

Full Tomba vs Hunter comparison

Tomba vs Icypeas

from $19 per month (Basic, 1,000 credits)

Both compete on being conspicuously cheap. Icypeas is 19 dollars for 1,000 and 89 for 10,000 with credits that never expire, but it will not state publicly whether a failed lookup consumes a credit. Tomba is 49 dollars for 2,500 finder credits at the bottom and says plainly that failures and duplicates are free. Icypeas is cheaper at small volume and now also charges only for verified emails; Tomba closes the gap at its larger plans, and Icypeas keeps the edge on credit permanence.

Full Tomba vs Icypeas comparison

Pairs well with

7 categories

Tomba is a data tool, and a team running it still has 7 neighbouring categories to staff. The pick in each is Smartlead for cold email outreach, MillionVerifier for email verification, Zoho CRM for sales CRM, Dripify for LinkedIn outreach, Trigify for buying signals & intent, Make for GTM engineering and Leadberry for website visitor identification, each the leading tool in that category on published criteria.

SmartleadCold Email Outreach · Best Value
Because
Tomba lists the interface is a secondary concern among its limits. Smartlead adds aggressive volume pricing at Pro tier and above.
Benefit
Outreach goes out on a schedule and replies land in one place instead of a personal inbox.
MillionVerifierEmail Verification · Best Value
Because
Tomba is built for data, not verification. MillionVerifier adds cheapest published ladder among the general-purpose verifiers here.
Benefit
Dead addresses come off the list before the send, so the bounce rate never touches the domain.
Zoho CRMSales CRM · Best Value
Because
Tomba sends buyers elsewhere for a searchable people database they can filter by title. Zoho CRM adds wider Zoho suite.
Benefit
Every conversation ends up on a record, so a rep leaving does not take the pipeline with them.
DripifyLinkedIn Outreach · Best Value
Because
Tomba lists phone lookups at five credits are poor value against SalesQL's single-credit among its limits. Dripify adds cloud execution with sane default limits protects casual users from themselves.
Benefit
A second channel reaches the people who never open email, without a rep doing it by hand.
TrigifyBuying Signals & Intent · Best Value
Because
Tomba lists company transparency is thin among its limits. Trigify adds published overage pricing and clearly stated plan caps.
Benefit
Outreach lands while a company is actually looking, rather than on a random Tuesday.
MakeGTM Engineering · Best Value
Because
Tomba lists the 99 percent accuracy and sub-5-percent bounce claims are marketing figures among its limits. Make adds best power-per-dollar in mainstream automation.
Benefit
The workflow nobody wanted to buy a whole tool for gets built in an afternoon.
LeadberryWebsite Visitor Identification · Best Value
Because
Tomba lists coverage depends on what companies publish on the open web among its limits. Leadberry adds flat unlimited-lead pricing on every paid tier.
Benefit
The companies already reading the site become a list, instead of anonymous traffic.

Pairings follow the methodology: the leading tool in each complementary category, chosen on published criteria. Placement cannot be purchased.

Full Tomba stack

Implementation & onboarding

Setup time: Fifteen minutes to a first API call: sign up, take the 75 free credits, pull an SDK, authenticate with the key and secret pair. The browser extension takes five. A production integration is a day or two depending on how many endpoints you use.
Learning curve: Low for a developer and moderate for anyone else. The endpoint set is well enumerated and the SDKs are conventional. The concept that needs learning is the credit multiplier: emails cost one and phones cost five, so a phone-heavy workload burns a budget four times faster than the headline rate suggests.
Onboarding: Entirely self-serve, including at very large credit volumes. There is no implementation call, and none is needed for an API of this shape.
Migration notes: Migration in is easiest for anyone leaving Clearbit, since Tomba publishes person, company, and combined endpoints as direct alternatives. Migration out is unencumbered because Tomba holds no workflow state worth keeping: it is a lookup service, so switching means changing an endpoint rather than moving a database. The twelve-month credit validity does mean an unused balance survives a pause rather than a departure.

Platform, API & security

Platforms: REST APIBrowser extensionWeb applicationTen official SDKs
API: Fourteen documented endpoints covering domain search, email finder, email verifier, author finder, LinkedIn finder, phone finder, phone validator, company enrichment, email enrichment, domain similar, company reveal, email count, email format, location, and technology detection, plus Clearbit-compatible person, company, and combined endpoints. Authentication is a paired X-Tomba-Key and X-Tomba-Secret header. Ten official open-source SDKs cover Python, Node.js, PHP, Ruby, Go, Java, Dart, Lua, R, and Elixir. Sub-200 millisecond average response and a 99.9 percent uptime SLA are advertised; per-second and per-minute rate limits are not published.
Compliance: GDPR stated by the vendor
Data residency: No customer-selectable regional hosting is advertised. The company is registered in Claymont, Delaware.
SSO: Not advertised.
Security notes: Tomba describes its data as generated by crawling more than two billion public web pages a month, which is a clearer sourcing statement than most vendors offer, though it does not expose per-result source URLs the way Hunter does. It states GDPR compliance but does not publish a documented legitimate interest assessment or a public objection form of the kind Kaspr provides. Buyers contacting people in the EU should request that detail in writing.

Support & resources

Channels: Email supportIn-app chatHelp centre
Documentation: API documentation covering all fourteen endpoints with authentication details and language examples, plus ten open-source SDK repositories on GitHub.
Community: Open-source SDK repositories on GitHub are the main community surface; there is no formal user forum.

Company

Founded: 2021
Headquarters: Claymont, Delaware, United States
Ownership: Privately held and independent
Employees: Not disclosed
Funding: No outside funding is publicly reported.

Timeline

2021Founded and registered in Claymont, Delaware, building an email finder around a public-web crawl and an API-first design.
2022Publishes official open-source SDKs across a wide range of languages, going broader on language coverage than any competitor in the category.
2023Expands the endpoint set to include author finder, technology detection, employee location distribution, and domain similarity.
2024Adds phone finder and phone validator endpoints, priced at five credits and one credit respectively rather than as a separate rationed allowance.
2025Publishes Clearbit-compatible person, company, and combined endpoints as a migration path for teams displaced by Clearbit's absorption into HubSpot.
2026Reports over 450 million verified contacts and 80 million indexed companies from a crawl of more than two billion pages a month, serving a claimed 150,000 professionals.

Integrations

REST API with header key and secret authentication
Official SDKs for Python, Node.js, PHP, Ruby, Go, Java, Dart, Lua, R, and Elixir
Clearbit-compatible person, company, and combined endpoints
Browser extension
CSV export

Frequently asked questions

13 questions

What is Tomba and what does it do?

Tomba is an email finding, verification, and enrichment API. It crawls the public web for published contact data, indexes it, and exposes fourteen documented endpoints covering domain search, email finding, verification, phone lookup, author lookup from an article URL, company and person enrichment, technology detection, and more. There is a browser extension and a web app, but the product is built primarily for developers calling it from code.

How much does Tomba cost?

A free tier gives 25 searches a month plus 75 API credits on signup with no card required. Paid plans start at Basic, 49 dollars a month for 5,000 credits, then Growth at 89 for 10,000 and Pro at 199 for 40,000, with larger steps above and an annual-contract Enterprise tier at 2,499 a month. Each plan's credits are split evenly between finder and verification. Yearly billing gives three months free.

Does a failed search consume a credit?

No. Tomba states that if it cannot find a valid email, the search is free, and that duplicate searches inside the same month also cost nothing. That means the per-credit price is a genuine cost per distinct valid result. Tomba therefore sits with Hunter, Anymail Finder, Skrapp, GetProspect, SalesQL, BetterContact, FullEnrich, and Dropcontact, all of which charge on success only, and against RocketReach, ContactOut, Datagma, Icypeas, and Enrich, none of which will publish their rule.

Are phone numbers a separate credit type?

Not a separate meter, but a multiplier. A phone lookup costs five credits against one for an email, drawn from the same pool, and a phone validation costs one. At the Growth plan's 8.90 dollars per thousand credits that puts a mobile number at roughly 0.0445 dollars, less at the larger plans. That is reasonable, but it is several times what SalesQL charges from its single-credit pool, so a phone-heavy team should compare carefully.

What does Tomba cost per verified email and per mobile number at 1,000 and 10,000 lookups?

Emails cost one finder credit each. The smallest plan, Basic at 49 dollars, includes 2,500 finder credits, so 1,000 addresses a month costs 49 dollars; 10,000 a month fits inside Pro at 199 dollars, about 2 cents each. Mobile numbers cost five credits each. Because failed and duplicate searches are free, all four figures are real costs per distinct valid result rather than costs per attempt.

Where does Tomba's data come from?

Tomba states that it crawls more than two billion public web pages a month, indexing email addresses that companies publish about themselves on team pages, press material, and bylines, then infers each company's naming pattern to answer for people it has not directly observed. That is a clearer sourcing statement than most vendors give, though unlike Hunter it does not expose the specific source URL for each result, so you can describe your provenance in general terms but not evidence it per address.

Is Tomba GDPR compliant for contacting people in Europe?

Tomba states GDPR compliance, but it does not publish a documented legitimate interest assessment, a named legal basis, or a public objection form of the kind Kaspr provides. Because it indexes published addresses rather than aggregating a purchased contact database, its structural exposure is narrower than an aggregator's. Even so, the compliance claim is thinner than the category's best, and your own legitimate interest assessment and objection handling remain your responsibility regardless.

What are Tomba's API rate limits?

Not published, which is the main gap in a product sold on its API. Tomba advertises a sub-200 millisecond average response time and a 99.9 percent uptime SLA, but no per-second or per-minute request ceilings. Hunter publishes exact figures for every endpoint, and SalesQL at least publishes daily call ceilings. With Tomba, burst and concurrency behaviour has to be established by testing before you build against it.

Do Tomba credits roll over or expire?

It depends on how you buy, and the vendor's pages disagree. The pricing hero and API page say credits are valid for twelve months; the pricing FAQ says subscription credits last until the end of the billing period and one-time purchases last a year. One-time blocks are the safe route to twelve-month validity.

Does Tomba support waterfall enrichment or bring-your-own provider keys?

No. Tomba is a single-source provider that does not cascade a failed lookup to another vendor and does not accept your own keys for other providers the way Clay, BetterContact, and FullEnrich do. Because Tomba is cheap and charges nothing for misses, it is a good candidate to sit as one step inside a waterfall someone else orchestrates, which is how many teams actually use it.

What should I pair Tomba with?

What do I pair with Tomba for Cold Email Outreach?

Smartlead. Tomba lists the interface is a secondary concern among its limits. Smartlead adds aggressive volume pricing at Pro tier and above.

Is Tomba enough on its own?

For data, yes. Tomba does not cover email verification, sales CRM and LinkedIn outreach, and its own profile says so; MillionVerifier, Zoho CRM and Dripify are the tools that fill those gaps.

Editorial verdict

Tomba is the best-value email lookup in this batch and the only one in it genuinely built for developers. Eight dollars ninety per thousand credits at every volume, with failed and duplicate searches free and credits valid for twelve months, gives an honest cost of under a cent per verified address, and ten open-source SDKs across fourteen endpoints is more API surface than anyone else here offers. The Author Finder endpoint and the Clearbit-compatible person and company endpoints are real differentiators rather than list padding. What is missing is everything around the API. There are no published rate limits, no seat terms, no searchable people database, no sequencer, a thin interface, and almost nothing disclosed about who runs the company. Phone lookups at five credits are middling value. Buy Tomba if code is calling it and price per verified email is the number that matters. Do not buy it as the tool a salesperson opens in the morning, and do not buy it as your phone data provider.

Written by the SaaSTracker editorial team. Awards, when shown, are judged against the published criteria in our methodology.