# Reddit — API Agent Score

> Score: 68/100 (Grade: C) | Domain: reddit.com | Rubric: 1.0.0 | Checked: July 24, 2026

Reddit scored 68/100 (C), classified "partially-ready".

[View full report](https://www.postman.com/ai/ai-ready-apis/company/reddit)
[All organizations](https://www.postman.com/ai/ai-ready-apis/llms.txt)

## Summary

- Overall: 68/100 (C)
- Classification: partially-ready

## Category Scores

- API Design: 94/100 (A+)
- Developer Experience: 100/100 (A+)
- Agent Discovery: 66/100 (C)
- Agent Understanding: 56/100 (D)
- Agent Usability: 47/100 (F)

## Check Results

### API Design

- [pass] Schema coverage & depth — package.json "types" → ./index.d.ts. Investigated: sdk 100%, spec 58%.
- [pass] Auth declared & discoverable — Authentication required (global or on every operation). Investigated: spec 100%, docs 100%.
- [warn] Machine-readable, versioned contract — info.version="1.0.0" set but no versioning scheme (URL / header / media type) detected. Investigated: spec 75%, docs 50%.
- [pass] Security & governance hygiene — No credential-shaped strings detected in spec. Investigated: spec 100%, wellknown 0%.
- [pass] Example coverage — 63% example coverage (target 80%+). Investigated: spec 100%, docs 100%, sdk 50%.

### Developer Experience

- [pass] Self-service developer portal — Signup page at https://www.reddit.com/register/; no free-tier language detected in docs/pricing. Investigated: docs 100%.
- [pass] Quickstart present — Quickstart at https://developers.reddit.com/docs/quickstart with a runnable first-call sample. Investigated: docs 100%.
- [pass] Code samples in docs — Code samples in 3 language(s) across docs (top: typescript, shell, python); 3/19 pages have ≥ 2 languages on the same page. Investigated: docs 100%.
- [pass] Description completeness — 0% description completeness. Investigated: spec 100%.
- [pass] Changelog published — changelog documented in the docs site at https://developers.reddit.com/docs/changelog. Investigated: spec 100%, docs 100%, sdk 100%.

### Agent Discovery

- [warn] llms.txt present, valid & comprehensive — No llms.txt directive found in HTML of any of 48 sampled pages; 2 failed to fetch. Investigated: docs 69%, sdk 0%.
- [warn] Registry & SDK presence — No MCP server, tool manifest, or list-tools capability is discoverable (server entrypoint: absent, tool manifest: unknown, list-tools: unknown). Investigated: sdk 58%, docs 0%, cli 0%.
- [warn] Docs reachable, not hard auth-gated — 1 JavaScript redirect(s) detected across 50 sampled pages. Investigated: docs 50%.
- [warn] Crawlable / AEO — No sitemap discoverable via robots.txt or /sitemap.xml on the docs host. Investigated: wellknown 50%.

### Agent Understanding

- [pass] Operation purpose clarity — 100% of operations have a clear summary + operationId an agent can select on. Investigated: spec 100%.
- [warn] Agent-navigable, token-efficient docs — 12 of 48 pages have substantive content differences between markdown and HTML (avg 12% missing); 2 failed to fetch. Investigated: docs 72%.
- [warn] Description consistency across surfaces — Mean pairwise description similarity across 2 surfaces (spec, docs) is 3% (threshold 35% for full credit).
- [fail] Machine-readable errors (RFC 9457) — No 4xx/5xx response codes (or default error response) documented anywhere in the spec. Investigated: spec 0%, docs 0%.
- [fail] Agent instructions file (AGENTS.md) — No AGENTS.md at the site root or /.well-known/. Investigated: wellknown 0%.
- [fail] Docs structured data — Neither JSON-LD nor OpenGraph/meta tags detected across 19 sampled pages — likely a CSR-only docs site. Investigated: docs 0%.

### Agent Usability

- [pass] Sandbox separation — sandbox documented in the docs site at https://developers.reddit.com/docs/earn-money/payments/payments_test. Investigated: spec 100%, docs 100%, sdk 50%.
- [warn] Runnable collection with test scripts — No test scripts found in the workspace's collections. Investigated: platform 50%.
- [fail] Idempotency documented — 0% of mutating operations document idempotency. Investigated: spec 0%, docs 0%, sdk 0%.
- [fail] Rate-limit signaling — No rate-limit response headers documented. Investigated: spec 0%, docs 0%.
- [fail] Pagination documented & consistent — 8 list endpoint(s) exist but no pagination params found. Investigated: spec 0%, docs 0%.

## Executive Summary

Reddit's API design is a genuine strength — the machine-readable contract is solid and partners can build against it with confidence. The critical gaps are in agent understanding and operational reliability: errors aren't machine-readable, there's no agent instructions file, docs lack structured data for parsing, and core operational patterns (idempotency, rate-limit signaling, and pagination) are undocumented or inconsistent. Fixing these three areas — error semantics, agent context, and operational reliability — will determine whether partners and their AI agents can integrate autonomously without hand-holding or guesswork.