Cognism vs Seamless.AI
Cognism
Best for notified, DNC-screened contact data Quote onlySeamless.AI
Search, research and outreach on one credit balance, with credits back on invalid emails Quote onlyCognism vs Seamless AI is not a price comparison, because neither vendor publishes a price for a seat, a credit or the API. It is decided by what each one makes defensible. Cognism if you call the UK or EU and need notified data screened against 15 Do Not Call and TPS registries. Seamless.AI if search, research and outreach on one credit balance matter more than that, and you can live inside 60 requests a minute shared by the whole organization.
Where they actually differ
Every value comes from the same record that drives the Enrichment APIs listing, so this table cannot disagree with the cards. Accented tags are data one provider returns and the other does not.
| Compare | Cognism | Seamless.AI |
|---|---|---|
| What sets it apart | Three quotas, and none of them is a price | Search and research are charged separately, and both are priced by quote |
| Entry price | Quote only | Quote only |
| Unit cost | Not sold by the unit | Not sold by the unit |
| Billing model | Per seat Subscription Credit packs | Per seat Credit packs Free tier |
| Free tier | No free tier and no published price. Both plans include 5 seats. | Free license with 50 Universal Credits that never replenish. The API needs a Public API license, which Seamless's API page says is bundled with some plans or sold as an add-on. |
| GTM motion covered | Source Enrich Signal | Source Enrich Engage |
| Data returned | Work emailMobile phoneFirmographicsTechnographicsIntent and newsJob postingsJob changes | Work emailMobile phoneFirmographicsTechnographicsIntent and newsJob changesLinkedIn profile |
| MCP server | Yes https://mcp.cognism.com/mcp | Yes Hosted at mcp.seamless.ai/mcp, 57 tools, OAuth 2.1 or an API key |
| Interfaces | REST API MCP server Bulk or async | REST API MCP server Webhooks Bulk or async |
| Auth | OAuth 2.0 client credentials, from M2M Connect in platform settings | API key in the Token header, created under Settings, Public API; OAuth 2.0 Bearer tokens for apps acting for many users |
| Rate limits | 500 req/min per operation, separate windows. Plus search tokens and credits. | 60 requests a minute per endpoint, shared by every key and user in the organization, with X-RateLimit headers and a 429 on excess |
| Coverage | Global | Global |
| Compliance | ISO 27001 ISO 27701 SOC 2 Type II GDPR notified data | SOC 2 Type II |
| Best for | Best for notified, DNC-screened contact data | Search, research and outreach on one credit balance, with credits back on invalid emails |
Pick each one when
Cognism
- You cold call in the UK or EU and legal will ask where the number came from.
- You want 500 requests a minute per operation and a documented token budget before you build.
- ISO 27001 and ISO 27701 are on the requirements list alongside SOC 2.
Seamless.AI
- One credit balance should cover search, research and the outreach tools.
- Seats are bought one at a time, rather than five at once.
- You value getting a credit back when an email turns out invalid.
Neither vendor publishes a match rate you could hold them to, so the rate card only tells you half the story. Take 500 rows from the segment you actually sell into, run them through one free tier and a small paid top-up on the other, verify both result sets, and divide spend by survivors. Half a day and about $20, and on a close pair it changes the answer often enough to be worth it.
What each one costs, tier by tier
Neither of these publishes a priced rate card. Cognism quotes everything, and Seamless.AI publishes its tiers and their allowances, but no prices, so what follows is what each one does publish, and what to ask for. Every figure is read off the vendor's own pricing page, and the pages they came from are listed at the foot of this one.
| The short version | Cognism | Seamless.AI |
|---|---|---|
| Cheapest paid plan with the API | Not published | Not published |
| Tiers published | None | 4 |
| Free tier | No free tier and no published price. Both plans include 5 seats. | Free license with 50 Universal Credits that never replenish. The API needs a Public API license, which Seamless's API page says is bundled with some plans or sold as an add-on. |
| Unit cost at entry | Not sold by the unit | Not sold by the unit |
The cheapest paid plan is rarely the plan you end up on, because what moves you up a tier is usually volume rather than a feature, and the two cards below say what each side publishes and what it keeps off the page.
Cognism
Cognism publishes no price at all, so there is no rate card to put here. Everything is quoted, which means the number you get depends on what you ask for and on where in their quarter you ask it.
Get these in writing before you sign: the per-unit rate at your volume, the annual minimum, how many seats that price assumes, whether API access is included or an add-on. Without the first two you cannot compare this against anything else on this page.
Seamless.AI
Seamless.AI publishes 4 tiers, one of them free, and every paid tier is quoted rather than priced.
Free
- 50 Universal Credits that do not replenish
- API needs a Public API license
Basic
- 250 Universal Credits a user a month
- Credits refresh on the contract date
Pro
- 10,000 Universal Credits a user a month
- Credits refresh on the contract date
Bulk credits
- A fixed pool shared by the organization
- Does not replenish; top up by buying more
How this plays out once it is running
Both vendors meter search separately from the reveal, which is the thing a first integration gets wrong on either. Cognism charges one search token per row returned, from a pool that is not your credit balance, and one credit per contact revealed. Seamless.AI charges 1 credit for every 10 rows a search returns, rounded up, and another credit per record you research, both from the same balance.
So a search that returns 100 people and a reveal of all 100 costs Cognism 100 tokens and 100 credits, and Seamless.AI 110 credits. Neither number has a dollar figure behind it on either site, so the comparison you can make before a sales call is the shape of the bill, not its size.
The other structural difference is throughput. Cognism publishes 500 requests a minute per operation, each with its own window. Seamless.AI publishes 60 requests a minute per endpoint, shared by every key and every user in the organization, although a single research call takes up to 500 records. A pipeline that makes many small calls will meet the Seamless.AI ceiling first.
What each one is genuinely good at
These are the things that keep somebody paying after the first month, which is a different question from what the marketing page leads with.
Cognism
A compliance position nobody else here publishes
Cognism notifies the business contacts it holds within GDPR timeframes and screens its phone data against 15 Do Not Call and TPS registries, including the UK TPS and CTPS. Seamless.AI's record carries SOC 2 Type II and no notification or registry screening. For a European calling motion that is the whole decision, and no difference in credit allowance substitutes for it.
Eight times the published request rate
Five hundred requests a minute per operation, each on its own window, against Seamless.AI's 60 a minute per endpoint for the entire organization. If two teams or an agent and a pipeline share one Seamless.AI org, they share that 60. Cognism documents its limits and its error codes, so the integration can be sized before the contract is signed.
Viewing a contact twice is free, and so is maintaining it
Cognism charges no credit for a contact you have already revealed, and its Enrich product maintains a record after the first enrichment, spending credits again only when something material changes, such as a job move. The same credits work across the platform, Enrich and the API without a surcharge.
Seamless.AI
One balance for search, research and outreach
Search and research spend the same Universal Credits, and the MCP server's 57 tools run from search through research to lists, campaigns, email and call logging. Cognism is a data product with an API. If the job is a rep or an agent prospecting and then writing to the people it found, Seamless.AI covers more of it behind one key, with engagement tools needing a Connect license.
Credits back when an email bounces at the check
When Seamless.AI's own point-in-time check finds an email invalid, the credits for that contact go back to the balance automatically. It covers emails only, not phones or company data, and it is not a deliverability promise. It is still more than most vendors in this category offer on a miss.
A seat is a seat, and the allowance is published
Basic carries 250 Universal Credits a user a month and Pro 10,000, refreshing on the contract date, and the free license carries 50 credits once. Cognism's two plans both start at five seats. Neither has a price, but only one of them tells you how many contacts a seat buys before you ask.
Where each one falls down
Every provider on this site has a case it handles badly, and the people who find out are the ones who bought it for that case. These are the ones worth knowing before you sign rather than after.
Cognism
Five seats before the first call
Both of Cognism's prospecting plans include five seats. For an unattended enrichment job, that is four seats nobody logs into, and it is priced by quote. Seamless.AI sells per user, which at least lets a small pipeline start small.
The search token pool runs out on its own
One token per row returned, from a pool that is not your credits. A broad filter that pages through thousands of rows can exhaust it without revealing anyone, and every request then fails while the credit balance looks healthy. Watch the X-Rate-Results-Remaining header rather than the credit count.
No published price at any tier
There is no rate card, plan price or per-credit price anywhere on cognism.com. That is normal for an enterprise buyer and disqualifying for a team that needs to know whether this is affordable before spending a week on it.
Seamless.AI
The API is a separate license
Seats and credits are not enough. The API needs an organization-level Public API license, and without one every call returns 422 with the code missingLicense. Seamless.AI's own pages disagree on how it is sold: one help article says owners and admins have access included, the API page says keys are bundled with some tiers or sold as an add-on. Get it written into the quote.
60 requests a minute for the whole organization
The default is per endpoint and shared by every key and user in the org, so a second integration or an agent on the MCP server eats into the first. Higher limits go through sales. A research call can carry 500 records, so batch everything; a pipeline built on single-record calls will spend most of its time on 429s.
A record submitted is a credit spent
Research charges 1 credit per record submitted, and the only refund Seamless.AI describes is the invalid-email credit back. A phone number that turns out wrong, or a record that comes back thin, is not covered. Pay attention to the duplicate poll status, which means your org already researched the record and you can read it free.
Using Cognism and Seamless.AI together
Teams comparing these two often end up running both, and the arrangement below is the one they settle on.
Running both is a territory split, the same one that works for Cognism against any North American database. Route UK and EU accounts to Cognism, where notified data and registry screening are the requirement, and everything else to Seamless.AI, where one balance also covers the outreach. The territory field already in your CRM is usually enough to route on.
Draw that line before anything is researched, because both vendors charge for the reveal and neither refunds a contact you bought twice. Within each vendor the second view is free: Cognism does not charge for a contact already revealed, and Seamless.AI returns a duplicate status and lets you read the record from your org data at no cost. Across the two, nothing protects you.
If the budget covers only one, ask both for the same three numbers, because neither publishes them. They are the price of one reveal credit, the price of search (tokens per row on Cognism, credits per ten rows on Seamless.AI), and what the API license or plan gate adds. Then run your own list through each trial and count found contacts, not credits spent.
Cognism or Seamless.AI, for you
Three questions, answered from the same records as the rest of this page. Nothing is sent anywhere and there is no result to email yourself.
Each answer leans one way. The recommendation appears here once you have picked at least two.
A tool like this can only weigh what is on the page. It does not know your workload, and the one test that does is the bake-off on this page: your own rows, queries or records, run on the cheapest entry each side offers.
Where an answer leans on a certification or an integration, it means that vendor publishes it on the pages this directory read, which is not the same as the other one lacking it. The sources are listed at the foot of the page.
Where the data comes from, and what you may do with it
The question that arrives late and expensively is who is allowed to hold the data. These are the fields each one returns, the coverage it claims and the compliance it publishes.
| Provider | Fields returned | Coverage | Compliance | Redistribution |
|---|---|---|---|---|
| Cognism | Work email, Mobile phone, Firmographics, Technographics, Intent and news, Job postings, Job changes | Global | ISO 27001 ISO 27701 SOC 2 Type II GDPR notified data | Not stated |
| Seamless.AI | Work email, Mobile phone, Firmographics, Technographics, Intent and news, Job changes, LinkedIn profile | Global | SOC 2 Type II | Not stated |
None of these states a redistribution position on its pricing or docs pages. Internally that never matters. Put the rows in something your customers can see and it becomes the question your legal team asks first.
Two practical notes that apply to every provider on this page. A compliance badge describes the vendor rather than your use of it, so a GDPR DPA does not give you a lawful basis for the outreach you send. And every one of these vendors runs its own opt-out, which means a person who asks you to delete their record has to be removed from your copy as well as from theirs.
Moving between Cognism and Seamless.AI
Most readers of this page are already on one of these two, and the order below catches the expensive mistakes while they are still free.
Measure the thing you are about to lose
Run 500 rows you already have through Cognism and record the match rate, the fields that came back populated and the cost. Without that number a migration cannot be judged, because every provider looks cheaper per unit than the one you are paying for today.
Check which fields change
Seamless.AI does not return job postings, which Cognism does. If anything downstream reads that field, the switch changes your pipeline as well as your vendor.
Rewrite the auth and the limits, in that order
Cognism authenticates with OAuth 2.0 client credentials, from M2M Connect in platform settings. Seamless.AI uses an API key in the Token header, created under Settings, Public API; OAuth 2.0 Bearer tokens for apps acting for many users.
The limits are the part that bites later. Cognism's limits: 500 req/min per operation, separate windows. Plus search tokens and credits.
Seamless.AI's limits: 60 requests a minute per endpoint, shared by every key and user in the organization, with X-RateLimit headers and a 429 on excess. A loop tuned to the first will either crawl or get throttled on the second.
Run both for one billing cycle
Keep the old key live and route a slice of real traffic to the new one. A month is the shortest honest test, because credit expiry, rollover and the overage rate only show up at renewal and those are where the surprises live.
Cancel on the renewal date
Credits on most of these plans do not survive a downgrade. Check what happens to the balance you have already paid for, and time the switch so you are not buying the same records twice.
The step people skip is the first one, and it is the only one that cannot be done after the fact. Once the old key is off you have nothing to compare the new match rate against, so a provider that is quietly worse on your segment looks like a provider that is fine.
What practitioners say about Cognism
The one part of this page that is not a vendor claim. Quotes are transcribed as written, linked to the thread, and nothing here is the only source for a figure in the tables above.
The regional split is the real difference, and practitioners buy both
Each data tool only really excels at one or two things. ZI is solid for NA mid-market and enterprise, while Cognism crushes it in EMEA and cell numbers. Every time I need one, we run a trial. If you've got the budget, use 2-3 tools to cover more ground. Right now, I'm using Clay for data infrastructure, Cognism for EMEA, and ZoomInfo for the US. sometimes Cognism finds data that ZI can't-and vice versa.
r/SalesOperations · November 2024 · 5 points
The comparison pages here reach the same place from the rate cards rather than from experience: Cognism sells notified EMEA data and mobile coverage, ZoomInfo sells North American breadth, and neither of them publishes a price. This is somebody running both with Clay in front, which is the arrangement those verdicts describe rather than the either-or the question usually assumes.
Coverage is the one thing nobody in this category will put a number behind, so "crushes it in EMEA" is an experienced opinion and not a measurement. The thread it sits in is itself a request for accuracy benchmarks that do not exist, which is a fair summary of the evidence available on either vendor.
14 threads read on 13 October 2026, searched by vendor name. Scores and dates are the comment's own. Nothing here is the only source for a price or a limit on this site: every figure in the tables above comes from a vendor's own page.
The wider field for both
Sometimes the answer is neither, and the reason you are comparing these two points somewhere else entirely: Cognism alternatives and Seamless.AI alternatives both start from the reason people leave.
Cognism alternatives
4Nobody leaves Cognism over the data. They leave over the quote, the five-seat floor, and the second allowance nobody mentioned.
See the alternatives →Seamless.AI alternatives
4Seamless.AI charges you to find a contact and again to unlock it, at a price it will only tell you on a call.
See the alternatives →Everything in Source
28The full category these two sit in, filtered by data returned, billing model and entry price.
Browse the category →Related comparisons
The 52 providers behind every pairing here are in the main listing.
Pairings that share a side with this one: Clearbit vs Cognism, Apollo vs Seamless.AI and Cognism vs Lead411.
And: Cognism vs RocketReach and Cognism vs UpLead. Every comparison in the directory is on the compare hub.
Apollo API vs Cognism
A $49 published seat against a notified, DNC-screened database that publishes no price.
Compare them →Cognism vs Lusha
Neither publishes the number you need, but they withhold opposite halves.
Compare them →Cognism vs ZoomInfo
A quote-only database against one that now sells a self-serve credit, strongest on opposite sides of the Atlantic.
Compare them →Testing providers one at a time? Run the waterfall in Clay.
Clay runs a waterfall across 150+ data providers from one table, without a separate contract with each. A lookup that finds nothing costs no data credit, and the free plan includes 500 actions a month.
Frontal is a Clay Elite Studio Partner.
Cognism and Seamless.AI, answered
Read from the same records that drive the table above.
Is Cognism or Seamless.AI cheaper?
Seamless.AI is cheaper to start, because its free tier carries the API: free license with 50 Universal Credits that never replenish. The API needs a Public API license, which Seamless's API page says is bundled with some plans or sold as an add-on. Cognism publishes no price.
Can I try Cognism and Seamless.AI for free?
Cognism: No free tier and no published price. Both plans include 5 seats. Seamless.AI: Free license with 50 Universal Credits that never replenish. The API needs a Public API license, which Seamless's API page says is bundled with some plans or sold as an add-on.
What are the rate limits on Cognism and Seamless.AI?
Cognism: 500 req/min per operation, separate windows. Plus search tokens and credits. Seamless.AI: 60 requests a minute per endpoint, shared by every key and user in the organization, with X-RateLimit headers and a 429 on excess.
Do Cognism and Seamless.AI both have MCP servers?
Both do. Cognism: https://mcp.cognism.com/mcp. Seamless.AI: Hosted at mcp.seamless.ai/mcp, 57 tools, OAuth 2.1 or an API key.
Which is better, Cognism or Seamless.AI?
Cognism vs Seamless AI is not a price comparison, because neither vendor publishes a price for a seat, a credit or the API. Cognism if you call the UK or EU and need notified data screened against 15 Do Not Call and TPS registries. Seamless.AI if search, research and outreach on one credit balance matter more than that, and you can live inside 60 requests a minute shared by the whole organization.
What are the downsides of Cognism and Seamless.AI?
Cognism: five seats before the first call; the search token pool runs out on its own; no published price at any tier. Seamless.AI: the API is a separate license; 60 requests a minute for the whole organization; a record submitted is a credit spent. The Limits section above has each one in full.
Can you use Cognism and Seamless.AI together?
Running both is a territory split, the same one that works for Cognism against any North American database. Route UK and EU accounts to Cognism, where notified data and registry screening are the requirement, and everything else to Seamless.AI, where one balance also covers the outreach.
Can I migrate from Cognism to Seamless.AI without losing data?
Not without losing a field. Seamless.AI does not return job postings, which Cognism does, so anything downstream that reads it has to change. Either way, measure your match rate on 500 rows before you switch, because that number is the one you cannot recover afterwards.