Clearbit is a B2B marketing and sales intelligence platform whose REST APIs resolve an email address to a person, a domain to a company, and an IP address to the business behind it, returning firmographic, technographic and persona data across a documented 100+ company and 60+ person attributes classified against GICS, SIC and NAICS. HubSpot acquired Clearbit in December 2023 and sells the capability as HubSpot Breeze Intelligence. The legacy Clearbit APIs (Enrichment, Streaming, Reveal, Prospector, Discovery, Risk, Name-to-Domain, Autocomplete) remain live and answer on their production hosts, but the provider is in publicly dated wind-down — new API keys have not been issued since 2023, free accounts were sunset 2025-04-30, and the free Logo API was sunset 2025-12-08 and its host no longer resolves. Only the free Autocomplete API is callable without a credential.
Clearbit (HubSpot Breeze Intelligence) publishes 9 APIs on the APIs.io network. Tagged areas include Sales Intelligence, B2B, Enrichment, Reveal, and HubSpot.
The Clearbit (HubSpot Breeze Intelligence) catalog on APIs.io includes 1 event-driven AsyncAPI specification.
Clearbit (HubSpot Breeze Intelligence)’s developer surface includes documentation, API reference, support, engineering blog, pricing, authentication, changelog, and 27 more developer resources.
Person enrichment from an email address, plus the Combined lookup that returns the person and their company in one response. Endpoints: /v2/people/find, /v2/combined/find. Verif...
Company enrichment from a domain, and the Name to Domain lookup that resolves a company name to its primary domain. Endpoints: /v2/companies/find, /v1/domains/find. Verified liv...
The same enrichment contract served from a streaming host that holds the connection open for up to 60 seconds so a queued (202) lookup resolves in-band. The provider warns it "l...
De-anonymizes website visitors by IP address, returning company firmographics for B2B traffic. Endpoint /v1/companies/find?ip=. Verified live 2026-08-13 (HTTP 401 auth_required)...
Search for people matching firmographic and persona filters. Endpoint /v1/people/search. Verified live 2026-08-13 (HTTP 401 auth_required, x-api-version 2018-11-16, x-ratelimit-...
Search Clearbit's company database with a structured query to build target-market lists. Endpoint /v1/companies/search. Verified live 2026-08-13 (HTTP 401 auth_required). No pub...
Scores an email address for fraud and abuse risk. Endpoint /v1/calculate?email=. Verified live 2026-08-13 (HTTP 401 auth_required, x-api-version 2016-05-03 — the oldest dated ve...
Free, unauthenticated company autocomplete: returns candidate companies (name, domain, logo) for a name fragment. Endpoint /v1/companies/suggest?query=. The only Clearbit endpoi...
RETIRED 2025-12-08. The free Logo API returned a company logo image for a domain with no authentication. Announced 2025-02-13, moved to 2025-12-01, then final on 2025-12-08 afte...
This directory contains a conceptual GraphQL schema for the Clearbit (now HubSpot Breeze Intelligence) B2B data enrichment and intelligence platform. Clearbit provided REST APIs...
aid: clearbit
url: https://raw.githubusercontent.com/api-evangelist/clearbit/refs/heads/main/apis.yml
name: Clearbit (HubSpot Breeze Intelligence)
kind: company
description: Clearbit is a B2B marketing and sales intelligence platform whose REST APIs resolve an email address to a person,
a domain to a company, and an IP address to the business behind it, returning firmographic, technographic and persona data
across a documented 100+ company and 60+ person attributes classified against GICS, SIC and NAICS. HubSpot acquired Clearbit
in December 2023 and sells the capability as HubSpot Breeze Intelligence. The legacy Clearbit APIs (Enrichment, Streaming,
Reveal, Prospector, Discovery, Risk, Name-to-Domain, Autocomplete) remain live and answer on their production hosts, but
the provider is in publicly dated wind-down — new API keys have not been issued since 2023, free accounts were sunset 2025-04-30,
and the free Logo API was sunset 2025-12-08 and its host no longer resolves. Only the free Autocomplete API is callable
without a credential.
accessModel:
pricing: free
onboarding: closed
trial: false
try_now: true
public: false
label: Free
confidence: high
source:
- plans
- probe
generated: '2026-08-13'
method: probed
note: try_now is true only because the Autocomplete API answers anonymously (HTTP 200 verified 2026-08-13). onboarding is
closed — Clearbit does not issue API keys to accounts created after 2023.
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/clearbit.png
tags:
- Sales Intelligence
- B2B
- Enrichment
- Reveal
- HubSpot
- Marketing
- Data
- Firmographics
- Lead Enrichment
- Company Data
created: '2026-05-08'
modified: '2026-08-13'
specificationVersion: '0.23'
apis:
- aid: clearbit:enrichment
name: Clearbit Person Enrichment API
description: 'Person enrichment from an email address, plus the Combined lookup that returns the person and their company
in one response. Endpoints: /v2/people/find, /v2/combined/find. Verified live 2026-08-13 (HTTP 401 auth_required, x-api-version
2019-12-19). May return 202 when the record is not warm in the index.'
humanURL: https://dashboard.clearbit.com/docs
baseURL: https://person.clearbit.com
tags:
- Enrichment
- Persons
- Company
tags_raw:
- Enrichment
- Person
- Company
properties:
- type: Documentation
url: https://dashboard.clearbit.com/docs
- type: APIReference
url: https://clearbit.com/attributes
- type: Authentication
url: authentication/clearbit-authentication.yml
- type: Conventions
url: conventions/clearbit-conventions.yml
- type: ErrorCatalog
url: errors/clearbit-problem-types.yml
- type: DataModel
url: data-model/clearbit-data-model.yml
- type: RateLimits
url: rate-limits/clearbit-rate-limits.yml
- aid: clearbit:company-enrichment
name: Clearbit Company Enrichment API
description: 'Company enrichment from a domain, and the Name to Domain lookup that resolves a company name to its primary
domain. Endpoints: /v2/companies/find, /v1/domains/find. Verified live 2026-08-13 (HTTP 401 auth_required, x-api-version
2019-12-19, x-ratelimit-* headers present). Name to Domain is documented by the provider as a free legacy product that
is unsupported.'
humanURL: https://dashboard.clearbit.com/docs
baseURL: https://company.clearbit.com
tags:
- Enrichment
- Company
- Firmographics
- Name to Domain
properties:
- type: Documentation
url: https://dashboard.clearbit.com/docs
- type: APIReference
url: https://clearbit.com/attributes
- type: Authentication
url: authentication/clearbit-authentication.yml
- type: DataModel
url: data-model/clearbit-data-model.yml
- aid: clearbit:enrichment-streaming
name: Clearbit Streaming Enrichment API
description: The same enrichment contract served from a streaming host that holds the connection open for up to 60 seconds
so a queued (202) lookup resolves in-band. The provider warns it "leads to slow Enrichment results" and excludes it from
the documented 600 requests/minute limit. Verified live 2026-08-13 (HTTP 401 auth_required, x-api-version 2019-12-19).
humanURL: https://help.clearbit.com/hc/en-us/articles/10065050209815-What-is-a-202-Status-Code
baseURL: https://person-stream.clearbit.com
tags:
- Enrichment
- Streaming
- Long Polling
properties:
- type: Documentation
url: https://help.clearbit.com/hc/en-us/articles/10065050209815-What-is-a-202-Status-Code
- type: Conventions
url: conventions/clearbit-conventions.yml
- aid: clearbit:reveal
name: Clearbit Reveal API
description: De-anonymizes website visitors by IP address, returning company firmographics for B2B traffic. Endpoint /v1/companies/find?ip=.
Verified live 2026-08-13 (HTTP 401 auth_required). Explicitly excluded from the documented 600 requests/minute limit,
and emits no rate-limit headers, so its budget is neither documented nor observable.
humanURL: https://dashboard.clearbit.com/docs#reveal-api
baseURL: https://reveal.clearbit.com
tags:
- Reveal
- IP
- Company
properties:
- type: Documentation
url: https://dashboard.clearbit.com/docs#reveal-api
- type: Authentication
url: authentication/clearbit-authentication.yml
- aid: clearbit:prospector
name: Clearbit Prospector API
description: Search for people matching firmographic and persona filters. Endpoint /v1/people/search. Verified live 2026-08-13
(HTTP 401 auth_required, x-api-version 2018-11-16, x-ratelimit-* headers present). Supports role/subRole search, location
parameters and pagination.
humanURL: https://dashboard.clearbit.com/docs#prospector-api
baseURL: https://prospector.clearbit.com
tags:
- Prospecting
- Search
- People
properties:
- type: Documentation
url: https://dashboard.clearbit.com/docs#prospector-api
- type: Authentication
url: authentication/clearbit-authentication.yml
- aid: clearbit:discovery
name: Clearbit Discovery API
description: Search Clearbit's company database with a structured query to build target-market lists. Endpoint /v1/companies/search.
Verified live 2026-08-13 (HTTP 401 auth_required). No published rate limit and no rate-limit headers on response.
humanURL: https://dashboard.clearbit.com/docs
baseURL: https://discovery.clearbit.com
tags:
- Discovery
- Search
- Company
- Target Market
properties:
- type: Documentation
url: https://dashboard.clearbit.com/docs
- type: Authentication
url: authentication/clearbit-authentication.yml
- aid: clearbit:risk
name: Clearbit Risk API
description: Scores an email address for fraud and abuse risk. Endpoint /v1/calculate?email=. Verified live 2026-08-13 (HTTP
401 auth_required, x-api-version 2016-05-03 — the oldest dated version on the estate). Documented by the provider as a
free legacy product available only to existing customers and "unsupported at this time".
humanURL: https://help.clearbit.com/hc/en-us/articles/8502992633111-Autocomplete-Name-to-Domain-and-Risk-API-FAQ
baseURL: https://risk.clearbit.com
tags:
- Risk
- Fraud
- Email
- Legacy
properties:
- type: Documentation
url: https://help.clearbit.com/hc/en-us/articles/8502992633111-Autocomplete-Name-to-Domain-and-Risk-API-FAQ
- type: Lifecycle
url: lifecycle/clearbit-lifecycle.yml
- aid: clearbit:name-to-domain
name: Clearbit Autocomplete API
description: 'Free, unauthenticated company autocomplete: returns candidate companies (name, domain, logo) for a name fragment.
Endpoint /v1/companies/suggest?query=. The only Clearbit endpoint that answers an anonymous caller — verified live 2026-08-13,
HTTP 200, CORS-enabled, CloudFront-cached. The logo field has returned null since 2025-09-09 ahead of the Logo API sunset.
The separate authenticated Name to Domain endpoint lives on company.clearbit.com.'
humanURL: https://help.clearbit.com/hc/en-us/articles/8502992633111-Autocomplete-Name-to-Domain-and-Risk-API-FAQ
baseURL: https://autocomplete.clearbit.com
tags:
- Autocomplete
- Free
- Company
- Name to Domain
properties:
- type: Documentation
url: https://help.clearbit.com/hc/en-us/articles/8502992633111-Autocomplete-Name-to-Domain-and-Risk-API-FAQ
- type: RateLimits
url: rate-limits/clearbit-rate-limits.yml
- type: Plans
url: plans/clearbit-plans-pricing.yml
- aid: clearbit:logo
name: Clearbit Logo API (retired)
description: 'RETIRED 2025-12-08. The free Logo API returned a company logo image for a domain with no authentication. Announced
2025-02-13, moved to 2025-12-01, then final on 2025-12-08 after a deliberate 24-hour warning outage on 2025-11-12. Verified
2026-08-13: logo.clearbit.com no longer resolves (NXDOMAIN) — callers get a DNS failure, not a documented 410. Logos remain
available to paying customers via the Company Enrichment API logo attribute; Clearbit recommends Logo.dev as the public
alternative.'
humanURL: https://clearbit.com/logo
baseURL: https://logo.clearbit.com
tags:
- Logos
- Free
- Retired
properties:
- type: Documentation
url: https://clearbit.com/logo
- type: Deprecation
url: https://clearbit.com/changelog
- type: Lifecycle
url: lifecycle/clearbit-lifecycle.yml
common:
- type: Website
url: https://clearbit.com/
- type: DeveloperPortal
url: https://dashboard.clearbit.com/docs
- type: Documentation
url: https://help.clearbit.com/
- type: APIReference
url: https://clearbit.com/attributes
- type: Support
url: https://help.clearbit.com/
- type: Blog
url: https://clearbit-blog.ghost.io/rss/
- type: GitHubOrganization
url: https://github.com/clearbit
- type: LinkedIn
url: https://www.linkedin.com/company/clearbit
- type: Pricing
url: https://clearbit.com/pricing
- type: Login
url: https://clearbit.com/login
- type: TermsOfService
url: https://clearbit.com/legal
- type: PrivacyPolicy
url: https://clearbit.com/privacy-policy
- type: Compliance
url: https://clearbit.com/trust#compliance
- type: TrustCenter
url: security/clearbit-trust-center.yml
- type: Security
url: security/clearbit-vulnerability-disclosure.yml
- type: VulnerabilityDisclosure
url: security/clearbit-vulnerability-disclosure.yml
- type: DomainSecurity
url: security/clearbit-domain-security.yml
- type: Authentication
url: authentication/clearbit-authentication.yml
- type: Conventions
url: conventions/clearbit-conventions.yml
- type: ErrorCatalog
url: errors/clearbit-problem-types.yml
- type: DataModel
url: data-model/clearbit-data-model.yml
- type: Conformance
url: conformance/clearbit-conformance.yml
- type: Lifecycle
url: lifecycle/clearbit-lifecycle.yml
- type: StatusPage
url: https://status.clearbit.com/
- type: Deprecation
url: https://clearbit.com/changelog
- type: ChangeLog
url: changelog/clearbit-changelog.yml
- type: Webhooks
url: asyncapi/clearbit-webhooks.yml
- type: Packages
url: packages/clearbit-packages.yml
- type: SDKs
url: packages/clearbit-packages.yml
- type: Components
url: components/clearbit-components.yml
- type: LLMsTxt
url: llms/clearbit-llms.txt
- type: Plans
url: plans/clearbit-plans-pricing.yml
- type: RateLimits
url: rate-limits/clearbit-rate-limits.yml
- type: FinOps
url: finops/clearbit-finops.yml
maintainers:
- FN: Kin Lane
email: kin@apievangelist.com
x-pointers-deliberately-absent:
note: Recorded so a later round does not "fix" these by adding a pointer the provider has not earned. Each was probed on
2026-08-13 and missed.
MCPServer: No first-party MCP server. mcp/clearbit-mcp.yml is a derived candidate with deployment.mode none. The Zapier
/ viaSocket / Apify Clearbit MCP listings are third-party wrappers.
AgentCard: /.well-known/agent-card.json and /.well-known/agent.json returned 404 on all eight hosts.
WellKnown: 44 well-known paths probed across 8 hosts, zero hits. well-known/clearbit-well-known.yml records the absence.
SecurityTxt: /.well-known/security.txt 404 on every host.
Idempotency: No idempotency key, replay semantics or retention window is documented anywhere. Conventions records the absence
explicitly.
AgentSkill: No OpenAPI exists to ground real operationIds in, so no skill can be written without inventing operation identifiers.
OpenAPI: No spec at any probed location on any host. See x-coverage.
AsyncAPI: /asyncapi.yaml and /asyncapi.json 404 on every host. Two webhook surfaces are documented in prose only and carry
the Webhooks pointer instead.
GraphQL: REMOVED this round. The prior pointer at graphql/clearbit-graphql.md asserted a GraphQL API; that file is an API
Evangelist conceptual translation of the REST surface, not a provider endpoint. A real but undocumented, fully auth-gated
GraphQL endpoint was found behind the dashboard at https://app.clearbit.com/graphql and is recorded in graphql/clearbit-graphql-endpoint-probe.yml
— it is not a published product and is not wired.
Sandbox: No sandbox, test mode or test credentials are published.
CLI: No first-party CLI in the github.com/clearbit organization or the docs.
Postman: No first-party Clearbit-owned public Postman workspace or collection found.
Roadmap: No public roadmap.
SignUp: Login is wired instead. Sign-up for API access is closed — no new API keys since 2023 and free accounts sunset 2025-04-30.
x-coverage:
state: covered
detail: Enriched. Fifteen new artifacts plus four upgraded were searched, probed or derived from Clearbit's own published
surfaces — the release notes, the Zendesk help centre, the attribute reference, the trust page, the public package registries,
and live probes of all nine API hosts.
checked: '2026-08-13'
x-contract-discovery:
note: Recorded separately from x-coverage because the profile is NOT thin — it is thick, but no machine-readable contract
exists behind it. STEP 0b was run in full before concluding this.
machine_readable_spec: none
detail: Clearbit's API reference at dashboard.clearbit.com/docs is a client-rendered React shell; its 31 lazy-loaded chunks
were downloaded from cdn.clearbit.com and searched and contain no reference content. No OpenAPI, Swagger or AsyncAPI answers
at any probed path on any of the nine live hosts. The ten APIs that answer on the wire have no published contract behind
them.
probed:
- path_set:
- /openapi.json
- /openapi.yaml
- /swagger.json
- /v1/openapi.json
- /api-docs
- /redoc
hosts: 10
hits: 0
note: app.clearbit.com returned HTTP 200 for every one of these — an SPA catch-all serving HTML, rejected as a false positive
rather than saved.
- path_set:
- /asyncapi.yaml
- /asyncapi.json
hosts: 4
hits: 0
- path_set:
- /.well-known/* (7 paths)
hosts: 8
hits: 0
- path_set:
- /graphql
hosts: 3
hits: 1
note: app.clearbit.com/graphql is real but auth-gated and undocumented. See graphql/clearbit-graphql-endpoint-probe.yml.
evidence:
- url: https://dashboard.clearbit.com/docs
status: 200
- url: https://person.clearbit.com/openapi.json
status: 404
- url: https://person.clearbit.com/swagger.json
status: 404
- url: https://clearbit.com/openapi.json
status: 404
- url: https://person.clearbit.com/asyncapi.yaml
status: 404
- url: https://clearbit.com/.well-known/agent-card.json
status: 404
- url: https://app.clearbit.com/graphql
status: 401
- url: https://logo.clearbit.com/clearbit.com
status: 0
checked: '2026-08-13'
x-enrichment:
date: '2026-08-13'
status: enriched
artifacts_added: 15
pass: local-v1