# publicapis-io

**Canonical:** https://apis.io/providers/publicapis-io/  
**Website:** https://publicapis.io/  
**APIs profiled:** 2

PublicAPIs.io is a curated directory of over 1,000 free public APIs, offering developers searchable listings, detailed descriptions, and direct links to API documentation and endpoints. The platform aggregates APIs across categories such as data, finance, AI, and more, providing a community-driven resource for discovering and accessing open APIs without registration barriers.

## Kin Score — 38.4 / 100 (thin)

Scored 2026-10-31 under rubric 0.25.0.

| Facet | Score |
|---|---|
| Discoverability | 66.7 |
| Contract Quality | 45.6 |
| Contract Governance | 79.1 |
| Operational Transparency | 10.5 |
| Developer Ergonomics | 28.6 |
| Access Clarity | 10.5 |

Regulatory layer — **Government & Public Sector**: 24.5 (matched via tags).

## Agent readiness — 18.6 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | documented |
| Auth Clarity | no |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |
| Delegated Identity | no |
| Protected Resource Metadata | no |
| Dynamic Client Registration | no |
| Agentic Commerce | no |
| Pagination Ratio | na |
| Operation Distinctiveness | na |

## APIs (2)

- **PublicAPIs.io MCP** — MCP server providing tools to search and compare APIs.
- **publicapis-io API** — publicapis-io API as documented publicly: 52 operations. Contract generated from the documentation by API Evangelist (2026-10-31); not the provider's own document.

## MCP servers (1)

- **publicapis-io MCP Server** — Remote MCP server at publicapis.io.

## Security (2)

- **Publicapis Io Authentication** — 0 schemes
- **Publicapis Io Domain Security** — TLSv1.3 · HSTS · DMARC

## Plans (1)

- **Publicapis Io Plans Pricing**

## Tags

Company, API Directory, Public APIs, Developer Resources, Open Data

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