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Head to head · Lead enrichment · October 2026 research run

Clearbit vs People Data Labs

People Data Labs scores 64.2 (B) on agent readiness against Clearbit's 13.5 (F), and leads in every scored category. Both do lead enrichment.

Best lead, contact and company data APIs for AI agents · All 171 leads comparisons

ClearbitHubSpot, Inc. · HTTP API F13.5/100#1056 of 1076 People Data LabsPeople Data Labs, Inc. · HTTP API B64.2/100#386 of 1076

Which one, for what

Clearbit F

Best for Only for teams that already hold a Clearbit contract.

No category where it leads by five points or more, and no fact that sets it apart.

Watch for

No public API or MCP server an outside agent can call

People Data Labs B

Best for Products and pipelines that enrich or search person and company records at volume and can write Elasticsearch or SQL queries.

Ahead on

  • Reliability, 78 against 30
  • Schema & documentation, 70 against 0
  • Agent ergonomics, 77 against 0
  • Security & auth, 43 against 8
  • Payments & pricing, 35 against 0
  • Maintenance & community, 79 against 4

Also in its favour

  • A hosted endpoint, with nothing to install

Watch for

No OpenAPI file was found. The machine-readable material is a Postman collection and Elasticsearch mappings

Score by category

CategoryWeight this runClearbitPeople Data LabsEdge
Reliability16%203078People Data Labs +48
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.2070People Data Labs +70
Agent ergonomics13%16.2077People Data Labs +77
Security & auth14%17.5843People Data Labs +35
Payments & pricing10%12.5035People Data Labs +35
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.8479People Data Labs +75
Transparency & trust7%8.86667People Data Labs +1
Negative events≤1500
TotalF 13.5/100B 64.2/100

Facts side by side

FactClearbitPeople Data Labs
KindHTTP APIHTTP API
VendorHubSpot, Inc.People Data Labs, Inc.
Hosted endpointno (local only)https://api.peopledatalabs.com/v5
TransportsHTTPHTTP
AuthAPI keyAPI key
PricingPaidFreemium
x402nono
LicenceProprietary service under the Clearbit Terms of Service (30 May 2025), provided by HubSpot, Inc. under the Clearbit brandProprietary service under the Services Subscription Agreement. The Python and JavaScript SDKs are MIT
Read-only variant documentednono
llms.txtnoyes
Last release2025-12-082026-09-16
Terms last updated2025-05-30couldn't be read
Privacy policy last updated2026-08-31couldn't be read
Customer content may train modelsyescouldn't be read
Terms restrict automated accessnot found in the textcouldn't be read
Terms restrict benchmarkingnot found in the textcouldn't be read
Terms or service can change without noticenot found in the textcouldn't be read
Arbitration or class-action waivernot found in the textcouldn't be read
Popularitynone40 stars, 133k npm/wk, 30k PyPI/wk

Verdicts

Clearbit

There is no public API or MCP server an outside agent can call today. Clearbit's APIs still run for existing customers behind a login, and its free tools and Logo API were retired in 2025. HubSpot's Breeze Intelligence is the route for new buyers, through HubSpot rather than Clearbit.

People Data Labs

Monthly dated release notes, a free sandbox with synthetic data, response headers that report credits and rate limits, and a free plan of 100 records a month make the API easy to start with. No OpenAPI file was found, keys carry no scopes and may travel in the URL, and the agreement allows changes without notice.

Before you call either

Clearbit

  1. Don't plan to call Clearbit. Hand the task to a person with an existing Clearbit account, or use HubSpot's Breeze Intelligence through HubSpot
  2. Replace logo.clearbit.com links, which stopped working after 8 December 2025

People Data Labs

  1. Send the key in the X-Api-Key header. The api_key query parameter puts the secret in URLs and logs
  2. Build and test queries against https://sandbox.api.peopledatalabs.com/v5/... first. It costs no credits and allows five calls a minute
  3. Set size deliberately on search. Every record returned costs one credit, and responses over 1 MB fail
  4. Treat 404 on enrichment as no match, not an error, and 402 as credits exhausted. Neither is worth a retry
  5. On 429, wait until the x-ratelimit-reset time. Limits are fixed-window per key and per endpoint

Questions

Which is better for AI agents, Clearbit or People Data Labs?

People Data Labs scores 64.2 (B) on agent readiness against Clearbit's 13.5 (F), and leads in every scored category.

Do Clearbit and People Data Labs need an API key?

Both need an API key.

Can an agent call Clearbit and People Data Labs without installing anything?

No hosted endpoint is listed for Clearbit. People Data Labs has a hosted endpoint at https://api.peopledatalabs.com/v5.

Other comparisons with Clearbit or People Data Labs

Machine-readable

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