# Mastodon

**Canonical:** https://apis.io/providers/mastodon/  
**APIs profiled:** 1

Mastodon is a open source, self-hosted, social networking service. Mastodon uses the ActivityPub protocol for federation which allows users to communicate between independent Mastodon instances and other ActivityPub compatible services. Mastodon has microblogging features similar to Twitter, and is generally considered to be a part of the Fediverse.

## Kin Score — 28.1 / 100 (thin)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 28.1).

| Facet | Score |
|---|---|
| Discoverability | 50.0 |
| Contract Quality | 44.1 |
| Governance | 11.4 |
| Contract Governance | 11.4 |
| Operational Transparency | 10.5 |
| Developer Ergonomics | 31.0 |
| Commercial Clarity | 15.8 |
| Access Clarity | 15.8 |

## Agent readiness — 33.2 (agent-aware)

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

## Access

Freemium — onboarding: unknown, pricing: freemium, trial: no (confidence: medium).

## APIs (1)

- **Mastodon API** — This is an OpenAPI for the Mastodon API.

## Security (1)

- **Mastodon Domain Security** — TLSv1.3 · HSTS · DMARC

## Plans (1)

- **Mastodon Plans Pricing**

## Tags

Open-Source, Social Networks

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