# Harmonic.ai

**Canonical:** https://apis.io/providers/harmonic-ai/  
**Website:** https://console.harmonic.ai/  
**APIs profiled:** 2

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).

## Kin Score — 60.1 / 100 (strong)

Scored 2026-08-17 under rubric 0.11.0. Trend: rising (+11.3 from 48.8).

| Facet | Score |
|---|---|
| Discoverability | 87.0 |
| Contract Quality | 53.1 |
| Governance | 20.8 |
| Operational Transparency | 42.1 |
| Developer Ergonomics | 66.8 |
| Commercial Clarity | 84.2 |

## Agent readiness — 65.1 (agent-ready)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | yes |
| MCP Server | yes |
| Auth Clarity | yes |
| Idempotency | no |
| Error Semantics | verified |
| OpenAPI Examples | partial |
| Rate Limit Signal | documented |
| Event Surface Described | yes |
| Agent Skills | derived |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Self-serve signup — onboarding: self-serve, pricing: unknown, trial: no (confidence: medium).

## APIs (2)

- **Harmonic REST & GraphQL API** — REST API for company search, enrichment, saved searches, list management, and bulk operations, plus a full GraphQL endpoint for flexible queries across companies, people, invest...
- **Harmonic MCP Server** — 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 th...

## MCP servers (2)

- **harmonic-ai-mcp.yml**
- **mcp.api.harmonic.ai**

## Agentic access (1)

- **Harmonic Ai Agentic Access** — 113 operations · 70 acting

## Security (3)

- **Harmonic Ai Authentication** — apiKey/oauth2 · 2 schemes
- **Harmonic Ai Domain Security** — TLSv1.3 · HSTS · DMARC
- **Harmonic Ai Vulnerability Disclosure** — Hackerone

## Plans (1)

- **Harmonic Ai Plans Pricing**

## Tags

startup-intelligence, venture-capital, company-data, people-data, investor-data, funding-data, data-enrichment, sales-intelligence, market-intelligence, graphql, mcp, agent-native

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/harmonic-ai/). Scores are computed from the provider's own public artifacts under a published rubric.