# Paddle — API Agent Score

> Score: 83/100 (Grade: A) | Domain: paddle.com | Rubric: 1.0.0 | Checked: July 24, 2026

Paddle scored 83/100 (A), classified "ai-ready".

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

## Summary

- Overall: 83/100 (A)
- Classification: ai-ready

## Category Scores

- API Design: 94/100 (A+)
- Developer Experience: 100/100 (A+)
- Agent Discovery: 97/100 (A+)
- Agent Understanding: 79/100 (B)
- Agent Usability: 59/100 (D)

## Check Results

### API Design

- [pass] Schema coverage & depth — 33/33 (100%) public params are fully typed (no any/**kwargs). Analyzer reports not all methods have a derivable input schema. Investigated: sdk 100%, spec 67%.
- [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" 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 100%.
- [pass] Example coverage — Code samples in 7 language(s) across docs (top: typescript, shell, swift); 3/16 pages have ≥ 2 languages on the same page. Investigated: docs 100%, sdk 100%, spec 0%.

### Developer Experience

- [pass] Self-service developer portal — Signup page at https://login.paddle.com/signup; no free-tier language detected in docs/pricing. Investigated: docs 100%.
- [pass] Quickstart present — Quickstart at https://developer.paddle.com/get-started/ with a runnable first-call sample. Investigated: docs 100%.
- [pass] Code samples in docs — Code samples in 7 language(s) across docs (top: typescript, shell, swift); 3/16 pages have ≥ 2 languages on the same page. Investigated: docs 100%.
- [pass] Description completeness — 98% of operations + parameters have substantive descriptions. Investigated: spec 100%, sdk 100%.
- [pass] Changelog published — changelog documented in the docs site at https://developer.paddle.com/changelog/. Investigated: spec 100%, docs 100%, sdk 100%.

### Agent Discovery

- [pass] llms.txt present, valid & comprehensive — llms.txt found at https://developer.paddle.com/llms.txt. Investigated: docs 100%, sdk 0%.
- [pass] Docs reachable, not hard auth-gated — All 50 sampled pages are publicly accessible. Investigated: docs 100%.
- [pass] Registry & SDK presence — Indexed on Context7 (websites/developer_paddle, 5610 snippets). Investigated: docs 100%, sdk 100%, cli 100%, mcp 0%, wellknown 0%.
- [warn] Crawlable / AEO — Sitemap present (1 entries) but carries no lastmod values. Investigated: wellknown 75%.

### Agent Understanding

- [pass] Machine-readable errors (RFC 9457) — error codes documented in the docs site at https://developer.paddle.com/llms/errors.txt. Investigated: spec 100%, docs 100%.
- [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 — 8 of 50 pages have substantive content differences between markdown and HTML (avg 10% missing). Investigated: docs 55%.
- [pass] Docs structured data — JSON-LD Article markup on 3/5 assessed pages (60%) with dateModified present. Investigated: docs 100%.
- [warn] Description consistency across surfaces — Mean pairwise description similarity across 2 surfaces (spec, docs) is 7% (threshold 35% for full credit).
- [fail] Agent instructions file (AGENTS.md) — No AGENTS.md at the site root or /.well-known/. Investigated: wellknown 0%.

### Agent Usability

- [pass] Pagination documented & consistent — Pagination params detected on 25 list endpoint(s). Investigated: spec 100%, docs 100%.
- [pass] Sandbox separation — sandbox documented in the docs site at https://developer.paddle.com/llms/get-started.txt. Investigated: spec 100%, docs 100%, sdk 100%.
- [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%.

## Executive Summary

Paddle's API program demonstrates genuine strengths in machine-readable contract quality and crawlability, meaning partners and agents can find and parse the API surface reliably. The most urgent gaps are in agent-facing context and operational reliability: there is no structured instructions file to guide AI agents through integration intent, and critical reliability signals — idempotency documentation and rate-limit signaling — are absent, leaving partners' automated workflows exposed to silent failures and unpredictable behavior. Prioritizing agent context and operational reliability documentation will materially reduce partner integration errors and support escalations.