# BNY Mellon — API Agent Score

> Score: 68/100 (Grade: C) | Domain: bny.com | Rubric: 1.0.0 | Checked: August 1, 2026

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

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

## Summary

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

## Category Scores

- API Design: 86/100 (A)
- Developer Experience: 55/100 (D)
- Agent Discovery: 46/100 (F)
- Agent Understanding: 78/100 (B)
- Agent Usability: 76/100 (B)

## Check Results

### API Design

- [pass] Schema coverage & depth — 100% of operations have documented request and response schemas. Investigated: spec 100%.
- [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 0%.
- [fail] Example coverage — 0% example coverage. Investigated: spec 0%, docs 0%.

### Developer Experience

- [pass] Description completeness — 100% of operations + parameters have substantive descriptions. Investigated: spec 100%.
- [pass] Changelog published — changelog documented in the docs site at https://nexen.bny.com/login/forms/login.fcc?SMQUERYDATA=-SM-kOfTfk1BQG9elua6JHr72eCpncbcEnBOhkiTxDZTfIXREUGWtYJ5GfweDZUxkanC1%2fUBKN6VlACI2Iw3Q1BYJjOCpoaLShja0UEqQcmtWYERwj8EohnXm59GUGOWxYIhLcyV3eqQG9YrCFxdWU1EkLUQ178NUbDRQpKE1XOK5xALpcHmb1ktkmXonFf2C%2b%2fstt7%2bIBBcpKnAG5rzlPuDTM9ZWlQZBMgB0c5x%2bhQMZc2YLiJhRiLM%2bjEY%2b77CLC1GQpUM7g0pvcsnG6h34VAclJyjmcoMwyH%2fps7%2fDO4GKSa66NYW2ZSAfvng6cI2KcZ0DBLfnWvhEDkkNzVKzbZXTx%2b2YbGfTfcAr5%2fT193hDNZGuuoAzknAh4MyrsaTeUPTuapLdYw4wPm9agKJelh6B1rQOTbf4WpkGFRH696OiAMc6fYcYXRFp%2fuUediqE%2fs7. Investigated: spec 100%, docs 100%.
- [warn] Quickstart present — Quickstart page reachable (23 variants scanned starting at https://developer.bny.com/app/open/home/quickstart) but no runnable code sample detected in HTML or .md variant. Investigated: docs 50%.
- [fail] Self-service developer portal — No self-service signup detected: no signup link found on the homepage or docs, and no conventional signup path (/signup, /sign-up, /register, /get-started, /console/signup, /dashboard/signup, /try, /try-free, /free, /free-trial, /start, /start-free, /join, /create-account, /account/signup, /auth/signup, /users/sign_up) resolved. Investigated: docs 0%.
- [fail] Code samples in docs — No detectable code samples across 1 sampled docs pages. Investigated: docs 0%.

### Agent Discovery

- [warn] Docs reachable, not hard auth-gated — 1 of 1 pages return 200 for non-existent URLs (soft 404). Investigated: docs 50%.
- [warn] Crawlable / AEO — No sitemap discoverable via robots.txt or /sitemap.xml on the docs host. Investigated: wellknown 50%.
- [fail] llms.txt present, valid & comprehensive — No llms.txt found at any candidate location (https://developer.bny.com/app/open/home/llms.txt, https://developer.bny.com/llms.txt, https://developer.bny.com/docs/llms.txt); candidates redirected cross-host to https://nexen.bny.com (agents can't follow cross-host redirects). Investigated: docs 0%.
- [fail] Registry & SDK presence — Not indexed on Context7 — agents can't pull this API's docs on demand via Context7. Investigated: docs 0%, sdk 0%, cli 0%.

### Agent Understanding

- [pass] Machine-readable errors (RFC 9457) — Only 2 distinct 4xx/5xx codes documented (plus 0 "default" catch-all responses). 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 — No pages support .md URLs (0/1 tested). Investigated: docs 71%.
- [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 1 assessed pages (1 JS-rendered). Investigated: docs 0%.
- [skip] Description consistency across surfaces — Only 1 surface description(s) with ≥6 tokens available; need at least 2 to compare.

### Agent Usability

- [pass] Rate-limit signaling — rate-limit behavior documented in the docs site at https://nexen.bny.com/login/forms/login.fcc?SMQUERYDATA=-SM-eB%2fGlbVhzQg7ifGyY4n3DFLD36vWbB%2fq7M4ogZchrJ1cODu17Q14%2bVuw9I0FjC079f5clqh31YNGv6j%2fuRZhloE05cubBko2C1kn8x0rCGSzJc%2fDA6jR2uXMVmCkf5oJi4nEroXoXh9356k1uSXROsyTePKcJOBMbkmzIJWBBmzcfEtYKvVuVK5KAbFKV67zC5UsnFOJGD1zdcywF9azvys4BCzGG3YwspitVWYnlC15OUi9MuZ2m3%2fwp0RaCzJbsaZgYaNtPNEwrBYtn0%2fM3naATYF37UH0nZywE79sZCsqCSAFoNeLSlQkiQuWZf3l6k%2fazl4IJEwRqlzSQJSZ0MKiTiA51gGUpgFSQihT2hLjbAqGCMbVpxC4Q4dXiYZxMa3WKjq8YJtgTLV9vqUJUffJhBsXoIkRC5gcB%2bWeoIichcVnAVcRO1kGbGbZKKO7. Investigated: spec 100%, docs 100%.
- [fail] Runnable collection with test scripts — No public Postman workspace discovered for the org. Investigated: platform 0%.
- [skip] Idempotency documented — No surface produced evidence for this capability in this run.
- [skip] Pagination documented & consistent — No surface produced evidence for this capability in this run.
- [skip] Sandbox separation — No surface produced evidence for this capability in this run.

## Executive Summary

BNY's API program demonstrates a strong API design foundation with a machine-readable contract already in place, but two critical gaps are limiting partner and agent adoption. Agent discovery is essentially absent — partners and their AI agents cannot find, index, or act on BNY's APIs without a sales conversation. Developer onboarding is equally underdeveloped, with no self-service portal or in-context code samples to help partners reach a first successful call quickly. Closing these two areas should be the immediate priority to unlock self-serve partner growth and AI agent compatibility.