7 Best Cognism API Alternatives in 2026 (Compared)

Developers leave Cognism's API because it meters three things and prices none of them in public. The pricing page shows no dollar amounts, and the docs say you need a package that includes API access (Cognism pricing, September 2026; Cognism docs, September 2026). Search tokens are charged per record returned, credits per contact revealed, and requests are capped at 500 a minute per operation (Cognism docs, September 2026).

Auth is OAuth 2.0 client credentials with 20-minute tokens. The endpoint list covers search, count, dictionaries and settings. It has no export endpoint (Cognism docs, September 2026).

This page ranks seven alternatives for developers who pull records through code or an agent. LeadOcean is first because it has one flat price and a 100 requests per second limit. For a two-column view, see LeadOcean vs Cognism. For app-first tools, read Cognism alternatives.

TL;DR

"1M records" here means 1M people returned with a work email, one credit each where the vendor uses credits. Figures are list-price arithmetic. Where a vendor sells no plan at that volume, the cell says so. Enterprise quotes differ. Cognism publishes no price, so it has no row.

What we evaluated

• Auth and schema: how you sign in, and how a filter or a record looks in JSON.
• Rate limit: requests allowed, and whether a daily or hourly cap sits on top.
• Bulk export: whether one call can move thousands of rows, or you page 100 at a time.
• MCP: whether an agent can search and enrich through a hosted server, and how it signs in.
• Cost at 1M records: the list-price bill for 1M records a month, and the plan it needs.

We read each vendor's pricing page and docs in September 2026. We ran no find-rate or accuracy test for this page, so we quote no quality numbers.

1. LeadOcean: best for API, agent and volume buyers

LeadOcean is one dataset behind one REST API and one MCP server. It holds 693M people, 366M with an email and 166M with a phone number, plus 63M companies. You search with 50 people filters and 34 company filters, and counts are free. Exports run up to 50,000 rows per request with POST /v1/exports, so a 1M-row pull is 20 calls over two days.

Auth is one header, x-api-key, with no token exchange. Pro is $499 a month with unlimited searches, enrichments and lookups, 5 API keys and 100 requests per second per key. That is 6,000 a minute on one key, against Cognism's 500 a minute per operation (Cognism docs, September 2026). There are no credits and no token quota. A very large month is paced down to one request a minute until the reset, not cut off.

Here is the same job on both: UK marketing VPs with contact details. Cognism needs a token first, then a search with the contacts view.

TOKEN=$(curl -s https://cognism-production.eu.auth0.com/oauth/token \
  -H "content-type: application/json" \
  -d "{\"grant_type\":\"client_credentials\",\"client_id\":\"$COGNISM_CLIENT_ID\",\"client_secret\":\"$COGNISM_CLIENT_SECRET\",\"audience\":\"https://api.cognism.com\"}" \
  | jq -r .access_token)

curl -X POST "https://api.cognism.com/persons/filter?limit=100&view=contacts" \
  -H "Authorization: Bearer $TOKEN" \
  -H "content-type: application/json" \
  -d '{"person":{"jobTitle":{"include":["Marketing"]},"seniority":{"include":["Vice President"]},"location":{"country":{"include":["United Kingdom"]}}}}'

LeadOcean search rows carry no contact details, so contacts come from a second call. Both calls sit inside the flat fee.

curl -X POST "https://api.leadocean.io/v1/people/search" \
  -H "x-api-key: $LEADOCEAN_API_KEY" \
  -H "content-type: application/json" \
  -d '{"title":["marketing"],"seniority":["vp"],"country":["GB"],"hasEmail":true,"limit":100}'

curl -X POST "https://api.leadocean.io/v1/people/enrich" \
  -H "x-api-key: $LEADOCEAN_API_KEY" \
  -H "content-type: application/json" \
  -d '{"linkedin_url":"https://www.linkedin.com/in/jane-doe","reveal_email":true}'

The MCP server at https://api.leadocean.io/mcp signs in with OAuth 2.1 and exposes 12 tools, from search_leads to find_phone and export_leads. Claude, Cursor or your own agent can pull records directly. count_leads is free, so an agent can size an audience before it spends a record.

Pros

• Flat $499 a month at any volume, with no credit meter and no token quota.
• REST and MCP on every plan, including Free.
• Email status on every record, from verified to spam_trap.
• A miss on POST /v1/people/enrich is a free 404.

Cons

• No phone-call verification and no Do-Not-Call scrubbing.
• Search rows are thin, so contact details take a second call.
• No intent data and no rep workspace, sequencer or dialer. The app has an Exports page, nothing more.

Best for: engineers, RevOps and agents that need volume and a fixed bill.

Pricing: Free is 1,000 records, one-off, no card. Pro is $499 a month, flat (LeadOcean pricing, September 2026).

2. People Data Labs: best for licensed datasets and per-match enrichment

People Data Labs (PDL) is a long-running person and company data API with bulk licences. Its All dataset holds 2.47 billion person profiles, 592 million of them with an email (PDL docs, September 2026). It lists ISO and SOC 2 Type 2 compliance on the pricing page, which helps in procurement (PDL pricing, September 2026).

It charges per match. A request that returns a person costs one credit, and a miss costs none. Pro starts at $98 a month for 350 credits, or $0.28 each, with 3 API keys. The Free plan gives up to 100 records a month with contact data hidden (PDL docs, September 2026).

Paid plans allow 1,000 enrichment calls a minute, and bulk enrichment takes 100 people per request (PDL docs, September 2026; bulk docs). Person Search defaults to 10 requests a minute, with up to 100 results a page (PDL docs, September 2026). The docs index lists no MCP server (PDL docs, September 2026).

Pros

• 1,000 enrichment calls a minute on paid plans, above Cognism's 500.
• Whole datasets by annual licence, delivered to S3, GCP or Azure (PDL docs, September 2026).
• Misses are not billed.
• ISO and SOC 2 Type 2 on the pricing page.

Cons

• $0.28 a record at the entry rate, so volume needs a sales call.
• Person Search defaults to 10 requests a minute.
• No MCP server in the docs index, so an agent needs a wrapper you host.
• Contact data is hidden on the Free plan.

Best for: teams that license data or need compliance paperwork and accept per-record pricing.

Pricing: Free up to 100 records a month. Pro from $98 a month for 350 credits. Enterprise custom (PDL pricing, September 2026).

3. Coresignal: best for raw profiles, company and job data

Coresignal sells employee, company and job records on credits. Its homepage lists 907 million employee profiles, 70 million companies and 482 million job postings (Coresignal, September 2026). Multi-source employee records carry a professional email and a four-level email status. No phone field appears in the multi-source or base employee dictionaries (Coresignal docs, September 2026). The Base Employee API pages list no email field (Coresignal docs, September 2026).

A base employee or company record costs 10 credits, a multi-source record 20 and a job posting 1 (Coresignal docs, September 2026). Mini is $49 a month for 2,500 credits. Pro is $499 for 35,000, which is 3,500 base records. Elite is $5,000 for 10M credits, which covers 1M base records (Coresignal pricing, September 2026). A work email is 20 credits, so 1M work-email lookups need 20M credits. No public plan covers that. The derived cost is about $10,000, two Elite months at $0.0005 a credit.

Auth is an apikey header. Rate limits run from 5 to 100 requests a second by plan, and Bulk Collect moves 10,000 records per request asynchronously (Coresignal docs, September 2026; bulk docs). The MCP server signs in with OAuth 2.1 and has 5 tools. entity_search costs 20 credits a call (Coresignal docs, September 2026).

Pros

• 1M base records fit one Elite month at $5,000 list. Base records carry no email field, so that is not an email-lookup cost.
• Job postings and company data sit beside profiles, and a posting costs 1 credit.
• Rate limits reach 100 requests a second and above.
• Bulk Collect allows 10,000 records per request.

Cons

• No phone field in employee records.
• Pro buys 3,500 base records a month.
• Email status has four levels, and the lowest is a guessed pattern.
• An MCP search costs 20 credits a call.

Best for: analytics and AI teams that need profiles, jobs and company data in bulk.

Pricing: Mini $49, Pro $499, Elite $5,000 a month (Coresignal pricing, September 2026).

4. Crustdata: best for live signals and change watchers

Crustdata sells real-time company and people data through APIs for search, enrichment, jobs, posts and watchers. It lists 1 billion+ people and describes its data as continuously re-verified (Crustdata, September 2026). It fits signal work, such as hiring spikes and funding events, better than bulk list building.

Pricing is credit based and the public page shows no dollar price per credit (Crustdata pricing, September 2026). Person search is 0.03 credits per result and person enrichment 1 to 7 (Crustdata docs, September 2026). Purchased credits last 12 months. The contact endpoint needs an enterprise plan, and self-serve keys get a 403 (Crustdata docs, September 2026).

Volume is the catch. Person enrich and search default to 15 to 30 requests a minute, and higher limits go through support (Crustdata docs, September 2026). Batch jobs take up to 10,000 people each. The MCP server at install.crustdata.com/mcp signs in with OAuth or an API key (Crustdata docs, September 2026).

Pros

• Live data and change watchers that a static database lacks.
• Cheap discovery: 1M search results is 30,000 credits.
• Async batch jobs of up to 10,000 people.
• MCP server that returns company, people and job data.

Cons

• No public price per credit, so you cannot price 1M records from the site.
• 15 to 30 requests a minute by default, against Cognism's 500.
• Contact data needs an enterprise plan.

Best for: AI SDR and signal workflows that need fresh data more than raw volume.

Pricing: Credit based, with no public price list. Per-call credit costs are in the docs (Crustdata docs, September 2026).

5. LeadMagic: best for a low per-credit price on valid emails

LeadMagic is a credit-based enrichment API. It lists 400 million people profiles and 25M companies, and reaches them through REST, CSV, a command-line tool and a hosted MCP server (LeadMagic, September 2026). Failed lookups cost nothing.

The credit price falls as you climb the plans. Essential is $99 a month for 5,000 credits. Professional is $499 for 50,000. Ultimate is $849 for 100,000, or $0.00849 a credit (LeadMagic pricing, September 2026). A valid email costs 1 credit and a mobile 5.

Email Finder allows 600 requests a minute. LeadMagic also states that a sustained find rate below 10% can lead to throttling or suspension (LeadMagic docs, September 2026). The MCP server uses OAuth, and a preview_cost call shows the price of a large job first (LeadMagic docs, September 2026).

Pros

• The lowest per-credit list price in this group.
• No charge when an email is not found.
• Email Finder allows 600 requests a minute, above Cognism's 500.
• Hosted MCP with a cost preview before large operations.

Cons

• The top self-serve plan is 100,000 credits, so 1M a month needs an Enterprise quote.
• Daily export caps by plan, from 10,000 rows on Essential to 100,000 on Ultimate.
• A minimum find-rate policy can throttle lists with poor match rates.

Best for: teams that enrich a few hundred thousand valid emails a month and want the cheapest credits.

Pricing: Essential $99, Growth $249, Professional $499, Ultimate $849 a month (LeadMagic pricing, September 2026).

6. Lusha: best for contact reveals with signals and an extension

Lusha is a contact and company data platform with a Chrome extension, a REST API and an MCP server. It lists 525 million contacts and 29 million companies, plus ISO 27001, ISO 27701 and SOC 2 Type II (Lusha, September 2026). Every user gets an API key on every plan, including Free.

An email costs 1 credit and a phone number 5. Free gives 40 credits a month. Starter is $49.90 for 400 and Premium $399.90 for 3,400 (Lusha pricing, September 2026). A request costs at least 1 credit even when no data comes back.

Limits rise with the plan. Free and Starter allow 40 requests a minute and 100 a day. Premium allows 300 a minute and 18,000 a day, and the bulk person API takes 100 contacts per request (Lusha API guide, September 2026). The MCP server has 50 tools and draws on the same credit pool (Lusha MCP docs, September 2026).

Pros

• Signals, lookalikes and a prospecting API beside contact reveals.
• MCP with OAuth for Claude and ChatGPT, and an API key for Cursor.
• ISO and SOC 2 Type II listed on the homepage.

Cons

• No public price at 1M. The top public tier is Premium at 10,000 credits a month ($977.40 billed monthly), or 120,000 a year ($9,539.10 billed yearly, about $0.0795 a credit).
• Free and Starter cap the API at 100 requests a day.
• Bulk stops at 100 contacts per request.
• Annual plans reset unused credits at year end.

Best for: sales teams that want reveals in a browser and in code, with signals.

Pricing: Free. Starter $49.90 and Premium $399.90 a month. Scale is custom (Lusha pricing, September 2026).

7. Apollo: best for reps who want a database and a sequencer

Apollo is a sales platform with a contact database attached. It lists 240M+ contacts and 30M+ companies, sequences, a dialer and a Chrome extension (Apollo MCP page, September 2026). It ranks last here because pricing is built around seats, not volume.

Basic is $49 per seat a month with 30,000 credits a year. Professional is $79 with 48,000. Organization is $119 with 72,000 and a three-seat minimum, all billed annually (Apollo pricing, September 2026). An email costs 1 credit and a phone number 8. Unused credits expire each cycle.

For code, the limits are workable. Enrichment endpoints allow 1,000 requests a minute on paid plans. Search allows 200 a minute and 50,000 a day (Apollo docs, September 2026). The API and the MCP server work on any plan, including Free. Apollo also says its standard plans are for internal business use only.

Pros

• Database, sequences, dialer and CRM sync in one tool.
• Enrichment allows 1,000 requests a minute, double Cognism's 500.
• MCP server on every plan, with OAuth sign-in.

Cons

• Seats and credits both scale your bill, and credits expire each cycle.
• Search stops at 200 requests a minute, and the Free plan at 600 requests a day.
• Internal use only, so you cannot build a product on it.

Best for: sales reps who prospect and send from one workspace.

Pricing: Free. Basic $49, Professional $79, Organization $119 per seat a month, billed annually (Apollo pricing, September 2026).

Comparison table

Sources are linked in each tool section, all checked in September 2026. Vendors change plans often, so confirm on the pricing page before you buy. The 1M column is list-price arithmetic. Apollo is 400 Basic seats at $49 on yearly billing, or 250 Professional seats at $99 on monthly billing. PDL sells no public plan at 1M. Coresignal is derived at 20 credits a work email and the Elite rate. PDL, LeadMagic and Lusha sell no public plan at 1M, so their cells say so or name their top public tier in the tool section.

For reference, Cognism allows 500 requests a minute per operation, pages 100 records at a time and ends a cursor journey at 100,000 records (Cognism docs, September 2026). It publishes no price.

How to choose

• You pull data in code or with an agent, at volume: LeadOcean. One flat price, REST and MCP on every plan, 100 requests per second.
• You need a licensed dataset or compliance paperwork: People Data Labs.
• You need job postings or raw profiles in bulk: Coresignal, on Elite.
• You need fresh signals and company events: Crustdata, with a rate-limit conversation first.
• You buy valid emails by the hundred thousand: LeadMagic, at $0.00849 a credit on Ultimate.
• You want signals and reveals in a browser and in code: Lusha.
• Your reps live in the tool: Apollo, or stay on Cognism for phone-verified mobiles and Do-Not-Call checks.

Verdict

LeadOcean wins for developers who pull data through an API or an agent, because the price does not move with records and one key runs 100 requests per second. Coresignal is the runner-up for bulk profiles and jobs, where 1M base records list at $5,000. People Data Labs wins for licensed datasets, LeadMagic for cheap valid emails and Crustdata for live signals. Lusha fits teams that want a browser and an API, and Apollo fits reps who want a sequencer. Stay on Cognism if you dial European mobiles. Otherwise start on the free plan and run the same search.

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