# Merge — API Agent Score

> Score: 78/100 (Grade: B) | Domain: merge.dev | Rubric: 1.0.0 | Checked: July 24, 2026

Merge scored 78/100 (B), classified "partially-ready".

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

## Summary

- Overall: 78/100 (B)
- Classification: partially-ready

## Category Scores

- API Design: 99/100 (A+)
- Developer Experience: 66/100 (C)
- Agent Discovery: 98/100 (A+)
- Agent Understanding: 58/100 (D)
- Agent Usability: 74/100 (B)

## Check Results

### API Design

- [pass] Schema coverage & depth — 508/508 (100%) public params are fully typed (no any/**kwargs). Analyzer confirms all methods have a derivable input schema. Investigated: sdk 100%, spec 77%.
- [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 97%, docs 94%.
- [pass] Security & governance hygiene — No credential-shaped strings detected in spec. Investigated: spec 100%, wellknown 0%.
- [pass] Example coverage — 100% example coverage across params + responses. Investigated: spec 100%, sdk 100%, docs 0%.

### Developer Experience

- [pass] Self-service developer portal — Signup page at https://app.merge.dev/signup; no free-tier language detected in docs/pricing. Investigated: docs 100%.
- [pass] Description completeness — 96% of operations + parameters have substantive descriptions. Investigated: spec 100%, sdk 0%.
- [pass] Changelog published — Newest official SDK activity 6 day(s) ago. Investigated: sdk 100%, spec 0%, docs 0%.
- [fail] Quickstart present — No quickstart/getting-started page found at the conventional paths. Investigated: docs 0%.
- [fail] Code samples in docs — No detectable code samples across 20 sampled docs pages. Investigated: docs 0%.

### Agent Discovery

- [pass] Docs reachable, not hard auth-gated — All 1 pages are publicly accessible. Investigated: docs 100%.
- [pass] Registry & SDK presence — Discovered SDKs in 11 distinct languages. Investigated: sdk 100%, docs 0%, cli 0%.
- [warn] llms.txt present, valid & comprehensive — llms.txt contains parseable links but doesn't fully follow the proposed structure: https://docs.merge.dev/home/llms.txt: No H1 heading found. Investigated: docs 92%, sdk 0%.
- [pass] Crawlable / AEO — Docs paths crawlable by all monitored AI agents. Investigated: wellknown 100%.

### 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 — 2 of 4 endpoints have aggressive caching or missing cache headers. Investigated: docs 90%.
- [warn] Description consistency across surfaces — Mean pairwise description similarity across 2 surfaces (spec, sdk) 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 3 assessed pages (3 JS-rendered). Investigated: docs 0%.

### Agent Usability

- [pass] Rate-limit signaling — rate-limit behavior documented in the docs site at https://docs.merge.dev/merge-unified/hris/merge-api-basics/rate-limits. Investigated: spec 100%, docs 100%.
- [pass] Pagination documented & consistent — Cursor pagination detected (most robust for agents). Investigated: spec 100%, docs 100%, sdk 98%.
- [pass] Sandbox separation — Test credentials signaled (test-key prefixes) but no sandbox server declared in spec. 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%.

## Executive Summary

Merge's API program stands out for strong discovery and a clean, machine-readable contract — partners and agents can find and parse the API surface without friction. However, the program has a significant gap in agent-readiness: errors are not machine-readable, there are no agent instruction files, docs lack structured data for AI parsing, and onboarding is missing the quickstart and code samples that get partners to a first successful call in minutes. Prioritize closing the agent-understanding gaps first, then sharpen the onboarding experience, to ensure both human partners and their AI agents can integrate confidently and independently.