# Mx — API Agent Score

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

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

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

## Summary

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

## Category Scores

- API Design: 100/100 (A+)
- Developer Experience: 49/100 (F)
- Agent Discovery: 95/100 (A+)
- Agent Understanding: 59/100 (D)
- Agent Usability: 50/100 (D)

## Check Results

### API Design

- [pass] Machine-readable, versioned contract — API versioning documented in the docs site at https://docs.mx.com/api-reference/platform-api/overview/versioning. Investigated: spec 100%, docs 100%.
- [pass] Schema coverage & depth — Public surface is precisely typed (anyTypeRatio=0.000, 0/3 loose). Investigated: sdk 100%, spec 67%.
- [pass] Auth declared & discoverable — Authentication required (global or on every operation). Investigated: spec 100%, docs 100%.
- [pass] Security & governance hygiene — No credential-shaped strings detected in spec. Investigated: spec 100%, wellknown 100%.
- [pass] Example coverage — 30% example coverage. Investigated: spec 100%, sdk 50%, docs 0%.

### Developer Experience

- [pass] Description completeness — 100% of operations + parameters have substantive descriptions. Investigated: spec 100%, sdk 0%.
- [pass] Changelog published — changelog documented in the docs site at https://docs.mx.com/release-notes. Investigated: spec 100%, docs 100%, sdk 100%.
- [fail] Self-service developer portal — No signup page detected across conventional paths (/signup, /sign-up, /register, /get-started, /console/signup, /dashboard/signup, /try, /try-free, /free, /free-trial, /start, /start-free). Investigated: 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 50 sampled pages are publicly accessible. Investigated: docs 100%.
- [pass] Registry & SDK presence — Indexed on Context7 (websites/mx, 6418 snippets). Investigated: docs 100%, cli 100%, sdk 92%, mcp 0%, wellknown 0%.
- [warn] llms.txt present, valid & comprehensive — llms.txt contains parseable links but doesn't fully follow the proposed structure: https://docs.mx.com/llms.txt: No blockquote summary found. Investigated: docs 81%, sdk 0%.
- [pass] Crawlable / AEO — Docs paths crawlable by all monitored AI agents. Investigated: wellknown 100%.

### Agent Understanding

- [warn] Agent-navigable, token-efficient docs — 2 of 50 pages have substantive content differences between markdown and HTML (avg 3% missing). Investigated: docs 83%.
- [warn] Operation purpose clarity — 0% of operations are agent-inferable. Investigated: spec 63%.
- [pass] Docs structured data — JSON-LD Article markup on 18/18 assessed pages (100%) with dateModified present. Investigated: docs 100%.
- [warn] Machine-readable errors (RFC 9457) — No 4xx/5xx response codes (or default error response) documented anywhere in the spec. Investigated: docs 13%, spec 6%.
- [warn] Description consistency across surfaces — Mean pairwise description similarity across 2 surfaces (spec, docs) is 3% (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] Sandbox separation — Sandbox environments are exposed (sandbox). Investigated: sdk 100%, spec 0%, docs 0%.
- [warn] Pagination documented & consistent — 1 list endpoint(s) exist but no pagination params found. Investigated: docs 50%, spec 38%.
- [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] Runnable collection with test scripts — No public Postman workspace discovered for the org. Investigated: platform 0%.

## Executive Summary

Mx's API discovery is a genuine strength — partners and agents can find your APIs without friction. However, the program has two critical gaps that will stall partner adoption: there is no self-service onboarding path (no portal, no quickstart, no code samples), meaning partners cannot get hands-on without a sales conversation, and agents lack the structured context — runnable examples, idempotency guidance, rate-limit signaling, and an agent instructions file — they need to integrate reliably without guessing. Closing the onboarding and agent-readiness gaps should be the immediate priority to turn discovery into active, trusted integrations.