name: Harmonic.ai
description: >-
  Startup discovery and intelligence platform built on a proprietary database of 30M+ companies and 200M+ people,
  offering real-time funding data, headcount/traction metrics, team composition, and investor relationships via REST,
  GraphQL, and a hosted MCP server. Used by venture capital, growth equity, corporate development, and go-to-market
  teams to find, research, and qualify startups programmatically or through the console web app, Chrome extension,
  bulk data exports (BigQuery/Snowflake/S3), and CRM integrations (Salesforce/HubSpot/Affinity).
image: https://cdn.prod.website-files.com/6107b1101d4d3e748743f234/65f31ad2b4ac6cf0cb8bd691_og-img.png
url: https://harmonic-ai.apievangelist.com/apis.yml
created: '2026-07-22'
modified: '2026-07-22'
specificationVersion: '0.21'
tags:
  - startup-intelligence
  - venture-capital
  - company-data
  - people-data
  - investor-data
  - funding-data
  - data-enrichment
  - sales-intelligence
  - market-intelligence
  - graphql
  - mcp
  - agent-native
apis:
  - name: Harmonic REST & GraphQL API
    description: >-
      REST API for company search, enrichment, saved searches, list management, and bulk operations, plus a full GraphQL
      endpoint for flexible queries across companies, people, investors, lists, and custom fields. Auth via apikey
      header or OAuth 2.0 bearer tokens.
    humanURL: https://console.harmonic.ai/docs/api-reference/introduction
    baseURL: https://api.harmonic.ai/
    tags:
      - startup-intelligence
      - venture-capital
      - company-data
      - people-data
      - investor-data
      - funding-data
      - data-enrichment
      - sales-intelligence
      - market-intelligence
      - graphql
      - mcp
      - agent-native
    properties:
      - type: Documentation
        url: https://console.harmonic.ai/docs/api-reference/introduction
      - type: APIReference
        url: https://console.harmonic.ai/docs/api-reference/introduction
      - type: OpenAPI
        url: openapi/harmonic-ai-companies-api-openapi.yml
      - type: OpenAPI
        url: openapi/harmonic-ai-persons-api-openapi.yml
      - type: OpenAPI
        url: openapi/harmonic-ai-people-api-openapi.yml
      - type: OpenAPI
        url: openapi/harmonic-ai-saved-searches-api-openapi.yml
      - type: OpenAPI
        url: openapi/harmonic-ai-search-api-openapi.yml
      - type: OpenAPI
        url: openapi/harmonic-ai-enrichment-api-openapi.yml
      - type: OpenAPI
        url: openapi/harmonic-ai-email-enrichment-api-openapi.yml
      - type: OpenAPI
        url: openapi/harmonic-ai-attachments-api-openapi.yml
      - type: GraphQL
        url: https://api.harmonic.ai/graphql
      - type: Authentication
        url: authentication/harmonic-ai-authentication.yml
      - type: Conventions
        url: conventions/harmonic-ai-conventions.yml
      - type: Postman
        url: https://www.postman.com/harmonic-ai/harmonic/overview
      - type: DataModel
        url: data-model/harmonic-ai-data-model.yml
      - type: ErrorCatalog
        url: errors/harmonic-ai-problem-types.yml
      - type: Overlay
        url: overlays/harmonic-ai-security-overlay.yaml
  - name: Harmonic MCP Server
    description: >-
      Hosted, agent-native MCP server exposing 40+ tools for enrichment, search, saved searches, lists, investors,
      network mapping, batch lookup, custom fields, and team. Listed in the Claude Connector store and ChatGPT Apps
      directory. Auth via OAuth 2.0 or API key.
    humanURL: https://support.harmonic.ai/en/articles/12785899-harmonic-mcp-server-getting-started-guide
    baseURL: https://mcp.api.harmonic.ai/
    tags:
      - startup-intelligence
      - mcp
      - agent-native
      - data-enrichment
      - company-data
      - people-data
      - investor-data
    properties:
      - type: MCPServer
        url: mcp/harmonic-ai-mcp.yml
      - type: ToolCrosswalk
        url: mcp/harmonic-ai-tool-crosswalk.yml
      - type: MCP
        url: https://mcp.api.harmonic.ai/
      - type: Documentation
        url: https://support.harmonic.ai/en/articles/12785899-harmonic-mcp-server-getting-started-guide
      - type: OAuthScopes
        url: scopes/harmonic-ai-scopes.yml
      - type: LLMSTxt
        url: https://cdn.prod.website-files.com/6107b1101d4d3e748743f234/69aeeb8f09c598b6aea54692_llms.txt
common:
  - type: DeveloperPortal
    url: https://console.harmonic.ai/
  - type: Documentation
    url: https://console.harmonic.ai/docs/api-reference/introduction
  - type: APIReference
    url: https://console.harmonic.ai/docs/api-reference/introduction
  - type: GettingStarted
    url: https://console.harmonic.ai/docs/getting-started
  - type: Support
    url: https://support.harmonic.ai/
  - type: Blog
    url: https://harmonic.ai/blog
  - type: GitHubOrganization
    url: https://github.com/harmonic-ai
  - type: Pricing
    url: https://harmonic.ai/pricing
  - type: SignUp
    url: https://console.harmonic.ai/signup
  - type: Login
    url: https://console.harmonic.ai/login
  - type: TermsOfService
    url: https://harmonic.ai/legal/terms-of-service
  - type: PrivacyPolicy
    url: https://harmonic.ai/legal/privacy-policy
  - type: Postman
    url: https://www.postman.com/harmonic-ai/harmonic/overview
  - type: StatusPage
    url: https://status.harmonic.ai
  - type: ChangeLog
    url: https://console.harmonic.ai/docs/changelog
  - type: MCPServer
    url: mcp/harmonic-ai-mcp.yml
  - type: LLMsTxt
    url: llms/harmonic-ai-llms.txt
  - type: WellKnown
    url: well-known/harmonic-ai-well-known.yml
  - type: Authentication
    url: authentication/harmonic-ai-authentication.yml
  - type: OAuthScopes
    url: scopes/harmonic-ai-scopes.yml
  - type: Conventions
    url: conventions/harmonic-ai-conventions.yml
  - type: Lifecycle
    url: lifecycle/harmonic-ai-lifecycle.yml
  - type: Conformance
    url: conformance/harmonic-ai-conformance.yml
  - type: DomainSecurity
    url: security/harmonic-ai-domain-security.yml
  - type: AgentSkill
    url: skills/_index.yml
maintainers:
  - FN: Harmonic.ai
    url: https://harmonic.ai/
generated:
  by: apis.io/add
  model: claude-opus-4-8
  confidence: 95
  at: '2026-07-22T16:00:02.185Z'