# Stack Exchange

**Canonical:** https://apis.io/providers/stack-exchange/  
**APIs profiled:** 8

Stack Exchange is a network of question-and-answer websites on topics in diverse fields, each site covering a specific topic, where questions, answers, and users are subject to a reputation award process. The network includes over 170 communities including Stack Overflow (programming), Server Fault (system administration), Super User (computing), and many others. The Stack Exchange API v2.3 provides programmatic access to questions, answers, comments, users, tags, badges, and search across all sites in the network.

## Kin Score — 37.9 / 100 (thin)

Scored 2026-08-21 under rubric 0.12.0. Trend: flat (+0.5 from 37.4).

| Facet | Score |
|---|---|
| Discoverability | 68.5 |
| Contract Quality | 63.2 |
| Governance | 28.8 |
| Contract Governance | 28.8 |
| Operational Transparency | 7.9 |
| Developer Ergonomics | 14.3 |
| Commercial Clarity | 39.5 |
| Access Clarity | 39.5 |

## Agent readiness — 38.3 (agent-ready)

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

## Access

Freemium · Self-serve signup — onboarding: self-serve, pricing: freemium, trial: no (confidence: high).

## APIs (8)

- **Stack Exchange Answers API** — Operations for retrieving and managing answers to questions on Stack Exchange sites.
- **Stack Exchange Badges API** — Operations for retrieving badge definitions and badge awards on Stack Exchange sites.
- **Stack Exchange Comments API** — Operations for retrieving and managing comments on questions and answers.
- **Stack Exchange Questions API** — Operations for retrieving, searching, and managing questions across the Stack Exchange network.
- **Stack Exchange Search API** — Operations for searching questions and content across the Stack Exchange network.
- **Stack Exchange Sites API** — Operations for retrieving information about Stack Exchange network sites.
- **Stack Exchange Tags API** — Operations for retrieving and managing tags used to categorize questions.
- **Stack Exchange Users API** — Operations for retrieving user profiles, activity, and reputation on Stack Exchange sites.

## Agentic access (1)

- **Stack Exchange Agentic Access** — 24 operations

## Security (2)

- **Stack Exchange Authentication** — oauth2 · 1 scheme
- **Stack Exchange Domain Security** — TLSv1.3 · HSTS · DMARC

## Plans (1)

- **Stack Exchange Plans Pricing**

## Tags

Answers, Code, Community, Developer Tools, Knowledge Base, Q&A, Questions, Stack Exchange

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