harmonic.ai

Harmonic is a startup discovery and intelligence platform with company, people, investor, and funding data. It provides AI-assisted research and workflow tools for finding, enriching, and tracking startups and related market intelligence.

3 integrations · MCP · REST · GraphQL

Harmonic exposes a REST API, a GraphQL API at `https://api.harmonic.ai/graphql`, and a hosted MCP server at `https://mcp.api.harmonic.ai`; these use Harmonic API keys and/or Harmonic OAuth user login depending on the surface.

discovered 1d ago

MCP servers1

Harmonic MCP Serverdetectedstreamable-http

REST · OpenAPI1

Harmonic REST APIdiscoveredrest

GraphQL1

Harmonic GraphQL APIdiscoveredgraphql

Credentials

Harmonic API keyapi_keyGet key ↗

Open the API Usage Dashboard in the Harmonic console to get your API key. Use that key in requests with the apikey header. The MCP getting-started guide explicitly points developers to this dashboard for API key access.

OAuth 2.0oauth2

OAuth 2.0 — self-onboarding

Point your MCP client at the server URL and approve access in the browser. The server supports OAuth Dynamic Client Registration (RFC 7591), so the client registers itself automatically — no developer-portal app, client_id, or client_secret to create.

conventions · 1/8 published

integrations.json✗/.well-known/integrations.json
llms.txt✓https://harmonic.ai/llms.txt
API catalog✗/.well-known/api-catalog
OpenAPI document✗/api/schema/, /openapi.json, /swagger.json, /api/openapi.json, or /v1/openapi.json
MCP server card✗/.well-known/mcp/server-card.json
OAuth protected resource✗/.well-known/oauth-protected-resource
Agent card✗/.well-known/agent-card.json
Agent skills✗/.well-known/agent-skills/index.json

Publish these signals → /publishing