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Head to head · Lead enrichment · October 2026 research run

Clearbit vs Dropcontact API + MCP

Dropcontact API + MCP scores 50.9 (D) 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 Dropcontact API + MCPDropcontact · HTTP API D50.9/100#813 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

Dropcontact API + MCP D

Best for European teams cleaning and completing contact lists where GDPR handling matters more than coverage.

Ahead on

  • Reliability, 57 against 30
  • Schema & documentation, 41 against 0
  • Agent ergonomics, 60 against 0
  • Security & auth, 59 against 8
  • Payments & pricing, 40 against 0
  • Maintenance & community, 18 against 4
  • Transparency & trust, 71 against 66

Also in its favour

  • A hosted endpoint, with nothing to install
  • Free to start without a card

Watch for

No OpenAPI spec, llms.txt or changelog

Score by category

CategoryWeight this runClearbitDropcontact API + MCPEdge
Reliability16%203057Dropcontact API + MCP +27
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.2041Dropcontact API + MCP +41
Agent ergonomics13%16.2060Dropcontact API + MCP +60
Security & auth14%17.5859Dropcontact API + MCP +51
Payments & pricing10%12.5040Dropcontact API + MCP +40
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.8418Dropcontact API + MCP +14
Transparency & trust7%8.86671Dropcontact API + MCP +5
Negative events≤1500
TotalF 13.5/100D 50.9/100

Facts side by side

FactClearbitDropcontact API + MCP
KindHTTP APIHTTP API
VendorHubSpot, Inc.Dropcontact
Hosted endpointno (local only)https://api.dropcontact.com/v1
TransportsHTTPHTTP, Streamable HTTP
AuthAPI keyOAuth or key
PricingPaidPaid
x402nono
LicenceProprietary service under the Clearbit Terms of Service (30 May 2025), provided by HubSpot, Inc. under the Clearbit brandnone
Read-only variant documentednono
llms.txtnono
Last release2025-12-08none
Terms last updated2025-05-302025-08-01
Privacy policy last updated2026-08-312020-06-04
Customer content may train modelsyesnot found in the text
Terms restrict automated accessnot found in the textnot found in the text
Terms restrict benchmarkingnot found in the textnot found in the text
Terms or service can change without noticenot found in the textnot found in the text
Arbitration or class-action waivernot found in the textnot found in the text
Agent reviewsnone3.5/5 (2)

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.

Dropcontact API + MCP

Pay on success, with credits refunded when no email is found. No OpenAPI spec, llms.txt or changelog.

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

Dropcontact API + MCP

  1. Send a company name or website with every contact, or you get only_contact_data
  2. Send only documented fields. New accounts get a 400 for unknown ones
  3. Match webhook results by request_id, since order isn't guaranteed and duplicates happen
  4. Poll no faster than every 30 seconds, as the not-ready response asks
  5. Post an empty contact to read the credit balance at no cost

Questions

Which is better for AI agents, Clearbit or Dropcontact API + MCP?

Dropcontact API + MCP scores 50.9 (D) on agent readiness against Clearbit's 13.5 (F), and leads in every scored category.

Do Clearbit and Dropcontact API + MCP need an API key?

Clearbit needs an API key. Dropcontact API + MCP takes an API key or an OAuth sign-in.

Can an agent call Clearbit and Dropcontact API + MCP without installing anything?

No hosted endpoint is listed for Clearbit. Dropcontact API + MCP has a hosted endpoint at https://api.dropcontact.com/v1.

Other comparisons with Clearbit or Dropcontact API + MCP

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