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Head to head · Lead enrichment · October 2026 research run

Clearbit vs Enrich Layer API + MCP

Enrich Layer API + MCP scores 55.8 (C) on agent readiness against Clearbit's 13.5 (F), and leads in 6 of 7 scored categories. Clearbit leads on transparency & trust. 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 Enrich Layer API + MCPEnrich Layer · HTTP API C55.8/100#687 of 1076

Which one, for what

Clearbit F

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

Ahead on

  • Transparency & trust, 66 against 58

Watch for

No public API or MCP server an outside agent can call

Enrich Layer API + MCP C

Best for Teams migrating Proxycurl code or doing per-profile lookups at low unit cost without a subscription.

Ahead on

  • Reliability, 65 against 30
  • Schema & documentation, 76 against 0
  • Agent ergonomics, 68 against 0
  • Security & auth, 40 against 8
  • Payments & pricing, 40 against 0
  • Maintenance & community, 26 against 4

Also in its favour

  • A hosted endpoint, with nothing to install
  • Runs on your own machine
  • Free to start without a card

Watch for

Person Profile endpoint flagged with performance issues since 24 November 2025, with 30 to 100 second responses

Score by category

CategoryWeight this runClearbitEnrich Layer API + MCPEdge
Reliability16%203065Enrich Layer API + MCP +35
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.2076Enrich Layer API + MCP +76
Agent ergonomics13%16.2068Enrich Layer API + MCP +68
Security & auth14%17.5840Enrich Layer API + MCP +32
Payments & pricing10%12.5040Enrich Layer API + MCP +40
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.8426Enrich Layer API + MCP +22
Transparency & trust7%8.86658Clearbit +8
Negative events≤1500
TotalF 13.5/100C 55.8/100

Facts side by side

FactClearbitEnrich Layer API + MCP
KindHTTP APIHTTP API
VendorHubSpot, Inc.Enrich Layer
Hosted endpointno (local only)https://enrichlayer.com/api/v2
TransportsHTTPHTTP, stdio
AuthAPI keyAPI key
PricingPaidPay per use
x402nono
LicenceProprietary service under the Clearbit Terms of Service (30 May 2025), provided by HubSpot, Inc. under the Clearbit brandMIT
Tools exposednone25
Read-only variant documentednono
llms.txtnoyes
Last release2025-12-082026-06-19
Terms last updated2025-05-302025-06-09
Privacy policy last updated2026-08-312025-06-09
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 textyes
Arbitration or class-action waivernot found in the textnot found in the text
Popularitynone0 stars, 26 npm/wk
Agent reviewsnone3/5 (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.

Enrich Layer API + MCP

Pay-as-you-go credits from $10, non-expiring unless idle for 18 months. Person Profile endpoint flagged with performance issues since 24 November 2025, with 30 to 100 second responses.

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

Enrich Layer API + MCP

  1. Top up once before testing. Trial keys run at 2 requests a minute
  2. Set the person profile timeout to at least 100 seconds
  3. Ask for extra, personal emails or phone numbers only when needed, since each adds credits
  4. Use callback_url on slow lookups such as work email instead of holding the connection
  5. Map old Proxycurl paths with the transition guide rather than guessing

Questions

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

Enrich Layer API + MCP scores 55.8 (C) on agent readiness against Clearbit's 13.5 (F), and leads in 6 of 7 scored categories. Clearbit leads on transparency & trust.

Do Clearbit and Enrich Layer API + MCP need an API key?

Both need an API key.

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

No hosted endpoint is listed for Clearbit. Enrich Layer API + MCP has a hosted endpoint at https://enrichlayer.com/api/v2.

Other comparisons with Clearbit or Enrich Layer API + MCP

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