Apollo.io

aid: apollo-io
url: https://raw.githubusercontent.com/api-evangelist/apollo-io/refs/heads/main/apis.yml
name: Apollo.io
kind: company
description: Apollo.io is a sales intelligence and go-to-market platform combining a database of 240M+ contacts and 30M+ companies
  with enrichment, sequencing, dialing and conversation intelligence. Its REST API publishes 80 operations at https://api.apollo.io/api/v1
  across people and company search, single and bulk enrichment, CRM accounts, contacts and deals, outreach sequences, one-off
  emails, tasks, calls, conversations, custom fields, lists, analytics and usage stats — described by a first-party OpenAPI
  3.1.0 document. Apollo also ships a hosted MCP server, a first-party CLI, and provider-published agent skills for both.
deliveryModel:
  model: unknown
  open_source: unknown
  commercial: true
  callable_host: true
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - openapi
  - pricing
  - repository-unlicensed
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: medium
  source:
  - plans
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/apollo-io.png
tags:
- Sales Intelligence
- Prospecting
- Engagement
- B2B Data
- Enrichment
- CRM
- Sales Engagement
- Conversation Intelligence
- MCP
- Software-as-a-Service
tags_raw:
- Sales Intelligence
- Prospecting
- Engagement
- B2B Data
- Enrichment
- CRM
- Sales Engagement
- Conversation Intelligence
- MCP
- SaaS
created: '2026-05-08'
modified: '2026-08-13'
specificationVersion: '0.23'
apis:
- aid: apollo-io:apollo-io-enrichment-api
  name: Apollo.io Enrichment API
  description: People and company enrichment, single and bulk. 4 operation(s) from the published Apollo OpenAPI.
  humanURL: https://docs.apollo.io/reference/people-enrichment
  baseURL: https://api.apollo.io/api/v1
  tags:
  - Enrichment
  - People
  - Organization
  - Bulk
  tags_raw:
  - Enrichment
  - People
  - Organizations
  - Bulk
  properties:
  - type: OpenAPI
    url: openapi/apollo-io-enrichment-api-openapi.yml
  - type: Overlay
    url: overlays/apollo-io-enrichment-overlay.yaml
  - type: Documentation
    url: https://docs.apollo.io/
  - type: APIReference
    url: https://docs.apollo.io/reference/people-enrichment
- aid: apollo-io:apollo-io-search-api
  name: Apollo.io Search API
  description: Database search across Apollo's people, company, job-posting and news data. 6 operation(s) from the published
    Apollo OpenAPI.
  humanURL: https://docs.apollo.io/reference/people-api-search
  baseURL: https://api.apollo.io/api/v1
  tags:
  - Search
  - Prospecting
  - People
  - Organization
  tags_raw:
  - Search
  - Prospecting
  - People
  - Organizations
  properties:
  - type: OpenAPI
    url: openapi/apollo-io-search-api-openapi.yml
  - type: Overlay
    url: overlays/apollo-io-search-overlay.yaml
  - type: Documentation
    url: https://docs.apollo.io/
  - type: APIReference
    url: https://docs.apollo.io/reference/people-api-search
- aid: apollo-io:apollo-io-accounts-api
  name: Apollo.io Accounts API
  description: Workspace CRM accounts — create, update, search, stages and ownership. 8 operation(s) from the published Apollo
    OpenAPI.
  humanURL: https://docs.apollo.io/reference/search-for-accounts
  baseURL: https://api.apollo.io/api/v1
  tags:
  - Account
  - CRM
  tags_raw:
  - Accounts
  - CRM
  properties:
  - type: OpenAPI
    url: openapi/apollo-io-accounts-api-openapi.yml
  - type: Overlay
    url: overlays/apollo-io-accounts-overlay.yaml
  - type: Documentation
    url: https://docs.apollo.io/
  - type: APIReference
    url: https://docs.apollo.io/reference/search-for-accounts
- aid: apollo-io:apollo-io-contacts-api
  name: Apollo.io Contacts API
  description: Workspace CRM contacts — create, update, search, stages and ownership. 10 operation(s) from the published Apollo
    OpenAPI.
  humanURL: https://docs.apollo.io/reference/search-for-contacts
  baseURL: https://api.apollo.io/api/v1
  tags:
  - Contacts
  - CRM
  properties:
  - type: OpenAPI
    url: openapi/apollo-io-contacts-api-openapi.yml
  - type: Overlay
    url: overlays/apollo-io-contacts-overlay.yaml
  - type: Documentation
    url: https://docs.apollo.io/
  - type: APIReference
    url: https://docs.apollo.io/reference/search-for-contacts
- aid: apollo-io:apollo-io-deals-api
  name: Apollo.io Deals API
  description: Deals (opportunities), their stages, and the deals attached to a contact. 5 operation(s) from the published
    Apollo OpenAPI.
  humanURL: https://docs.apollo.io/reference/list-all-deals
  baseURL: https://api.apollo.io/api/v1
  tags:
  - Deals
  - Opportunities
  - Pipeline
  properties:
  - type: OpenAPI
    url: openapi/apollo-io-deals-api-openapi.yml
  - type: Overlay
    url: overlays/apollo-io-deals-overlay.yaml
  - type: Documentation
    url: https://docs.apollo.io/
  - type: APIReference
    url: https://docs.apollo.io/reference/list-all-deals
- aid: apollo-io:apollo-io-sequences-api
  name: Apollo.io Sequences API
  description: Outreach sequences — create, update, approve, abort, archive, enrollment and activity. 12 operation(s) from
    the published Apollo OpenAPI.
  humanURL: https://docs.apollo.io/reference/search-for-sequences
  baseURL: https://api.apollo.io/api/v1
  tags:
  - Sequences
  - Cadences
  - Outreach
  properties:
  - type: OpenAPI
    url: openapi/apollo-io-sequences-api-openapi.yml
  - type: Overlay
    url: overlays/apollo-io-sequences-overlay.yaml
  - type: Documentation
    url: https://docs.apollo.io/
  - type: APIReference
    url: https://docs.apollo.io/reference/search-for-sequences
- aid: apollo-io:apollo-io-emailer-messages-api
  name: Apollo.io Emailer Messages API
  description: One-off email drafting, sending, send status and content retrieval. 4 operation(s) from the published Apollo
    OpenAPI.
  humanURL: https://docs.apollo.io/reference/create-an-email-draft
  baseURL: https://api.apollo.io/api/v1
  tags:
  - Email
  - Outreach
  properties:
  - type: OpenAPI
    url: openapi/apollo-io-emailer-messages-api-openapi.yml
  - type: Overlay
    url: overlays/apollo-io-emailer-messages-overlay.yaml
  - type: Documentation
    url: https://docs.apollo.io/
  - type: APIReference
    url: https://docs.apollo.io/reference/create-an-email-draft
- aid: apollo-io:apollo-io-tasks-api
  name: Apollo.io Tasks API
  description: Tasks against contacts, accounts and deals — create, search, update, complete, skip. 7 operation(s) from the
    published Apollo OpenAPI.
  humanURL: https://docs.apollo.io/reference/search-tasks
  baseURL: https://api.apollo.io/api/v1
  tags:
  - Task
  - Engagement
  tags_raw:
  - Tasks
  - Engagement
  properties:
  - type: OpenAPI
    url: openapi/apollo-io-tasks-api-openapi.yml
  - type: Overlay
    url: overlays/apollo-io-tasks-overlay.yaml
  - type: Documentation
    url: https://docs.apollo.io/
  - type: APIReference
    url: https://docs.apollo.io/reference/search-tasks
- aid: apollo-io:apollo-io-calls-api
  name: Apollo.io Calls API
  description: Phone-call records — log, search and update dialer activity. 3 operation(s) from the published Apollo OpenAPI.
  humanURL: https://docs.apollo.io/reference/search-for-calls
  baseURL: https://api.apollo.io/api/v1
  tags:
  - Calls
  - Telephony
  properties:
  - type: OpenAPI
    url: openapi/apollo-io-calls-api-openapi.yml
  - type: Overlay
    url: overlays/apollo-io-calls-overlay.yaml
  - type: Documentation
    url: https://docs.apollo.io/
  - type: APIReference
    url: https://docs.apollo.io/reference/search-for-calls
- aid: apollo-io:apollo-io-conversations-api
  name: Apollo.io Conversations API
  description: Conversation intelligence — search recorded calls and meetings, read insights, export. 4 operation(s) from
    the published Apollo OpenAPI.
  humanURL: https://docs.apollo.io/reference/search-conversations
  baseURL: https://api.apollo.io/api/v1
  tags:
  - Conversations
  - Call Recording
  - Artificial Intelligence
  tags_raw:
  - Conversations
  - Call Recording
  - AI
  properties:
  - type: OpenAPI
    url: openapi/apollo-io-conversations-api-openapi.yml
  - type: Overlay
    url: overlays/apollo-io-conversations-overlay.yaml
  - type: Documentation
    url: https://docs.apollo.io/
  - type: APIReference
    url: https://docs.apollo.io/reference/search-conversations
- aid: apollo-io:apollo-io-analytics-api
  name: Apollo.io Analytics API
  description: The Query Analytics Report endpoint — metrics, dimensions and filters over engagement data. 1 operation(s)
    from the published Apollo OpenAPI.
  humanURL: https://docs.apollo.io/reference/sync-report
  baseURL: https://api.apollo.io/api/v1
  tags:
  - Analytics
  - Reporting
  properties:
  - type: OpenAPI
    url: openapi/apollo-io-analytics-api-openapi.yml
  - type: Overlay
    url: overlays/apollo-io-analytics-overlay.yaml
  - type: Documentation
    url: https://docs.apollo.io/
  - type: APIReference
    url: https://docs.apollo.io/reference/sync-report
- aid: apollo-io:apollo-io-fields-api
  name: Apollo.io Fields API
  description: Field and custom-field definitions across contacts, accounts and opportunities. 4 operation(s) from the published
    Apollo OpenAPI.
  humanURL: https://docs.apollo.io/reference/get-a-list-of-fields
  baseURL: https://api.apollo.io/api/v1
  tags:
  - Custom Fields
  - Metadata
  properties:
  - type: OpenAPI
    url: openapi/apollo-io-fields-api-openapi.yml
  - type: Overlay
    url: overlays/apollo-io-fields-overlay.yaml
  - type: Documentation
    url: https://docs.apollo.io/
  - type: APIReference
    url: https://docs.apollo.io/reference/get-a-list-of-fields
- aid: apollo-io:apollo-io-miscellaneous-api
  name: Apollo.io Miscellaneous API
  description: Users, email accounts, lists and labels, notes, usage stats and webhook results. 12 operation(s) from the published
    Apollo OpenAPI.
  humanURL: https://docs.apollo.io/reference/get-a-list-of-users
  baseURL: https://api.apollo.io/api/v1
  tags:
  - User
  - List
  - Usage
  - Webhook
  tags_raw:
  - Users
  - Lists
  - Usage
  - Webhooks
  properties:
  - type: OpenAPI
    url: openapi/apollo-io-miscellaneous-api-openapi.yml
  - type: Overlay
    url: overlays/apollo-io-miscellaneous-overlay.yaml
  - type: Documentation
    url: https://docs.apollo.io/
  - type: APIReference
    url: https://docs.apollo.io/reference/get-a-list-of-users
- aid: apollo-io:apollo-mcp
  name: Apollo MCP Server
  description: Apollo's hosted Model Context Protocol server. A remote Streamable-HTTP endpoint at https://mcp.apollo.io/mcp,
    authenticated with OAuth 2.0 and no API key, exposing 51 published actions across search, enrichment, CRM, sequences,
    tasks, conversations and analytics. tools/list is OAuth-gated; the 401 challenge enumerates all 70 scopes.
  humanURL: https://docs.apollo.io/docs/apollo-mcp
  baseURL: https://mcp.apollo.io/mcp
  tags:
  - MCP
  - Agents
  - Artificial Intelligence
  tags_raw:
  - MCP
  - Agents
  - AI
  properties:
  - type: MCPServer
    url: mcp/apollo-io-mcp.yml
  - type: ToolCrosswalk
    url: mcp/apollo-io-tool-crosswalk.yml
  - type: AgentSkill
    url: skills/_index.yml
  - type: Documentation
    url: https://docs.apollo.io/docs/apollo-mcp
  - type: SourceCode
    url: https://github.com/apolloio/apollo-mcp-plugin
- aid: apollo-io:apollo-io-users-api
  name: Apollo.io Users API
  description: The Users API from Apollo.io — 1 operation(s) for users.
  humanURL: https://docs.apollo.io/reference/people-enrichment
  baseURL: https://api.apollo.io/api/v1
  tags:
  - User
  tags_raw:
  - Users
  properties:
  - type: OpenAPI
    url: openapi/apollo-io-users-api-openapi.yml
- aid: apollo-io:apollo-enrich-organization-enrichment-api
  name: Apollo.io Organization Enrichment API
  description: Match and enrich company records, single or in bulk.
  humanURL: https://docs.apollo.io/reference/people-enrichment
  baseURL: https://api.apollo.io/api/v1
  tags:
  - Organization Enrichment
  properties:
  - type: OpenAPI
    url: openapi/apollo-enrich-organization-enrichment-api-openapi.yml
  - type: Documentation
    url: https://docs.apollo.io/docs/enrich-people-data
  - type: APIReference
    url: https://docs.apollo.io/reference/people-enrichment
  - type: PostmanCollection
    url: collections/apollo-enrich.postman_collection.json
  - type: OpenCollection
    url: collections/apollo-enrich.opencollection.json
  - type: Documentation
    url: https://docs.apollo.io/docs/find-people-using-filters
  - type: APIReference
    url: https://docs.apollo.io/reference/people-api-search
  - type: APIReference
    url: https://docs.apollo.io/reference/organization-enrichment
  - type: APIReference
    url: https://docs.apollo.io/reference/organization-search
  - type: APIReference
    url: https://docs.apollo.io/reference/search-for-contacts
  - type: APIReference
    url: https://docs.apollo.io/reference/search-for-accounts
  - type: APIReference
    url: https://docs.apollo.io/reference/add-contacts-to-sequence
- aid: apollo-io:apollo-enrich-organization-search-api
  name: Apollo.io Organization Search API
  description: Search Apollo's company database.
  humanURL: https://docs.apollo.io/reference/people-enrichment
  baseURL: https://api.apollo.io/api/v1
  tags:
  - Organization Search
  properties:
  - type: OpenAPI
    url: openapi/apollo-enrich-organization-search-api-openapi.yml
  - type: Documentation
    url: https://docs.apollo.io/docs/enrich-people-data
  - type: APIReference
    url: https://docs.apollo.io/reference/people-enrichment
  - type: PostmanCollection
    url: collections/apollo-enrich.postman_collection.json
  - type: OpenCollection
    url: collections/apollo-enrich.opencollection.json
  - type: Documentation
    url: https://docs.apollo.io/docs/find-people-using-filters
  - type: APIReference
    url: https://docs.apollo.io/reference/people-api-search
  - type: APIReference
    url: https://docs.apollo.io/reference/organization-enrichment
  - type: APIReference
    url: https://docs.apollo.io/reference/organization-search
  - type: APIReference
    url: https://docs.apollo.io/reference/search-for-contacts
  - type: APIReference
    url: https://docs.apollo.io/reference/search-for-accounts
  - type: APIReference
    url: https://docs.apollo.io/reference/add-contacts-to-sequence
- aid: apollo-io:apollo-enrich-people-enrichment-api
  name: Apollo.io People Enrichment API
  description: Match and enrich person records, single or in bulk.
  humanURL: https://docs.apollo.io/reference/people-enrichment
  baseURL: https://api.apollo.io/api/v1
  tags:
  - People Enrichment
  properties:
  - type: OpenAPI
    url: openapi/apollo-enrich-people-enrichment-api-openapi.yml
  - type: Documentation
    url: https://docs.apollo.io/docs/enrich-people-data
  - type: APIReference
    url: https://docs.apollo.io/reference/people-enrichment
  - type: PostmanCollection
    url: collections/apollo-enrich.postman_collection.json
  - type: OpenCollection
    url: collections/apollo-enrich.opencollection.json
  - type: Documentation
    url: https://docs.apollo.io/docs/find-people-using-filters
  - type: APIReference
    url: https://docs.apollo.io/reference/people-api-search
  - type: APIReference
    url: https://docs.apollo.io/reference/organization-enrichment
  - type: APIReference
    url: https://docs.apollo.io/reference/organization-search
  - type: APIReference
    url: https://docs.apollo.io/reference/search-for-contacts
  - type: APIReference
    url: https://docs.apollo.io/reference/search-for-accounts
  - type: APIReference
    url: https://docs.apollo.io/reference/add-contacts-to-sequence
- aid: apollo-io:apollo-enrich-people-search-api
  name: Apollo.io People Search API
  description: Search Apollo's people database for prospects.
  humanURL: https://docs.apollo.io/reference/people-enrichment
  baseURL: https://api.apollo.io/api/v1
  tags:
  - People Search
  properties:
  - type: OpenAPI
    url: openapi/apollo-enrich-people-search-api-openapi.yml
  - type: Documentation
    url: https://docs.apollo.io/docs/enrich-people-data
  - type: APIReference
    url: https://docs.apollo.io/reference/people-enrichment
  - type: PostmanCollection
    url: collections/apollo-enrich.postman_collection.json
  - type: OpenCollection
    url: collections/apollo-enrich.opencollection.json
  - type: Documentation
    url: https://docs.apollo.io/docs/find-people-using-filters
  - type: APIReference
    url: https://docs.apollo.io/reference/people-api-search
  - type: APIReference
    url: https://docs.apollo.io/reference/organization-enrichment
  - type: APIReference
    url: https://docs.apollo.io/reference/organization-search
  - type: APIReference
    url: https://docs.apollo.io/reference/search-for-contacts
  - type: APIReference
    url: https://docs.apollo.io/reference/search-for-accounts
  - type: APIReference
    url: https://docs.apollo.io/reference/add-contacts-to-sequence
common:
- type: License
  name: MIT
  url: https://github.com/apolloio/apollo-mcp-plugin/blob/main/LICENSE
- type: Website
  url: https://www.apollo.io/
- type: LinkedIn
  url: https://www.linkedin.com/company/apolloio
- type: DeveloperPortal
  url: https://developer.apollo.io/
- type: Documentation
  url: https://docs.apollo.io/
- type: APIReference
  url: https://docs.apollo.io/reference/apollo-api
- type: GettingStarted
  url: https://docs.apollo.io/docs/build-with-apollo
- type: Support
  url: https://knowledge.apollo.io/
- type: Blog
  url: https://www.apollo.io/blog
- type: GitHubOrganization
  url: https://github.com/apolloio
- type: Integrations
  url: https://www.apollo.io/partners
- type: Pricing
  url: https://www.apollo.io/pricing
- type: SignUp
  url: https://www.apollo.io/lp/sign-up
- type: Login
  url: https://app.apollo.io/
- type: TermsOfService
  url: https://www.apollo.io/terms/api
- type: PrivacyPolicy
  url: https://www.apollo.io/privacy-policy
- type: Compliance
  url: https://trust.apollo.io/
- type: TrustCenter
  url: security/apollo-io-trust-center.yml
- type: DomainSecurity
  url: security/apollo-io-domain-security.yml
- type: StatusPage
  url: https://status.apollo.io/
- type: Lifecycle
  url: lifecycle/apollo-io-lifecycle.yml
- type: Webhooks
  url: asyncapi/apollo-io-webhooks.yml
- type: Authentication
  url: authentication/apollo-io-authentication.yml
- type: Authentication
  url: https://docs.apollo.io/reference/authentication
- type: OAuthScopes
  url: scopes/apollo-io-scopes.yml
- type: Conventions
  url: conventions/apollo-io-conventions.yml
- type: ErrorCatalog
  url: errors/apollo-io-problem-types.yml
- type: DataModel
  url: data-model/apollo-io-data-model.yml
- type: Conformance
  url: conformance/apollo-io-conformance.yml
- type: RateLimits
  url: rate-limits/apollo-io-rate-limits.yml
- type: RateLimits
  url: https://docs.apollo.io/reference/rate-limits
- type: Plans
  url: plans/apollo-io-plans-pricing.yml
- type: FinOps
  url: finops/apollo-io-finops.yml
- type: Sandbox
  url: sandbox/apollo-io-sandbox.yml
- type: CLI
  url: cli/apollo-io-cli.yml
- type: Packages
  url: packages/apollo-io-packages.yml
- type: MCPServer
  url: mcp/apollo-io-mcp.yml
- type: AgentSkill
  url: skills/_index.yml
- type: AgenticAccess
  url: agentic-access/apollo-io-agentic-access.yml
- type: WellKnown
  url: well-known/apollo-io-well-known.yml
- type: LLMsTxt
  url: llms/apollo-io-llms.txt
- type: LlmsText
  url: https://docs.apollo.io/llms.txt
- type: OpenAPI
  url: https://docs.apollo.io/openapi/apollo-rest-api.json
- type: Features
  data:
  - REST API at https://api.apollo.io/api/v1 — 80 operations, OpenAPI 3.1.0 published at https://docs.apollo.io/openapi/apollo-rest-api.json
  - API key authentication via the x-api-key header; keys are scoped to an explicit endpoint list or marked master
  - OAuth 2.0 authorization-code flow for partners, with 70 named scopes
  - Hosted remote MCP server at https://mcp.apollo.io/mcp over Streamable HTTP with OAuth 2.0 — no API key, no local install
  - First-party Apollo CLI (Homebrew tap and signed prebuilt binaries) with OAuth login
  - Five provider-published agent skills — four in the MCP plug-in, one for the CLI
  - 240M+ contacts and 30M+ companies searchable; enrichment is metered in credits
  - Rate limits are per team and per endpoint, enforced in per-minute, per-hour and per-day windows, surfaced in x-rate-limit-*
    response headers
  - Bulk enrichment endpoints take up to 10 records per call
  - Asynchronous enrichment callbacks via webhook_url, with a 30-day poll-by-request_id fallback
  - No sandbox host and no test mode — testing happens against production with a real key
  - No client SDKs; Apollo documents generating one from the OpenAPI instead
  sources:
  - https://docs.apollo.io/openapi/apollo-rest-api.json
  - https://docs.apollo.io/reference/rate-limits
  - https://docs.apollo.io/docs/apollo-mcp
  - https://www.apollo.io/pricing
  updated: '2026-08-13'
integrations:
- name: Affiliate Partners
  url: https://www.apollo.io/partners
- name: Solutions Partners
  url: https://www.apollo.io/partners
- name: Technology Partners
  url: https://www.apollo.io/partners
- name: Data Reseller Partners
  url: https://www.apollo.io/partners
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
x-enrichment:
  date: '2026-08-13'
  status: enriched
  artifacts_added: 50
  pass: local-v1