# Delta Air Lines — API Agent Score

> Score: 58/100 (Grade: D) | Domain: delta.com | Rubric: 1.0.0 | Checked: July 24, 2026

Delta Air Lines scored 58/100 (D), classified "not-ai-ready".

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

## Summary

- Overall: 58/100 (D)
- Classification: not-ai-ready

## Category Scores

- API Design: 75/100 (B)
- Developer Experience: 53/100 (D)
- Agent Discovery: 79/100 (B)
- Agent Understanding: 49/100 (F)
- Agent Usability: 45/100 (F)

## Check Results

### API Design

- [pass] Schema coverage & depth — package.json "types" → lib/typescript/src/index.d.ts. Investigated: sdk 100%.
- [pass] Example coverage — Code samples in 4 language(s) across docs (top: shell, python, java); 3/3 pages have ≥ 2 languages on the same page. Investigated: docs 100%, sdk 100%.
- [fail] Security & governance hygiene — No security.txt at /.well-known/security.txt or /security.txt. Investigated: wellknown 0%.
- [skip] Machine-readable, versioned contract — No surface produced evidence for this capability in this run.
- [skip] Auth declared & discoverable — No surface produced evidence for this capability in this run.

### Developer Experience

- [pass] Code samples in docs — Code samples in 4 language(s) across docs (top: shell, python, java); 3/3 pages have ≥ 2 languages on the same page. Investigated: docs 100%.
- [pass] Changelog published — Newest official SDK activity 0 day(s) ago. Investigated: 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%.
- [skip] Description completeness — No surface produced evidence for this capability in this run.

### Agent Discovery

- [pass] Registry & SDK presence — Indexed on Context7 (dandavison/delta, 301 snippets). Investigated: docs 100%, cli 100%, sdk 50%, mcp 0%, wellknown 0%.
- [warn] Docs reachable, not hard auth-gated — Server ignores Accept: text/markdown header (0/50 sampled pages return markdown). Investigated: docs 75%.
- [warn] llms.txt present, valid & comprehensive — No llms.txt directive found in HTML of any of 43 sampled pages; 7 failed to fetch. Investigated: docs 50%, sdk 0%.
- [warn] Crawlable / AEO — Sitemap present (1 entries) but carries no lastmod values. Investigated: wellknown 75%.

### Agent Understanding

- [warn] Agent-navigable, token-efficient docs — No sampled pages support .md URLs (0/50 tested). Investigated: docs 50%.
- [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 2 assessed pages (2 JS-rendered). Investigated: docs 0%.
- [skip] Machine-readable errors (RFC 9457) — No surface produced evidence for this capability in this run.
- [skip] Operation purpose clarity — No surface produced evidence for this capability in this run.
- [skip] Description consistency across surfaces — Only 0 surface description(s) with ≥6 tokens available; need at least 2 to compare.

### Agent Usability

- [warn] Sandbox separation — No test-mode flag or sandbox environment is exposed. Investigated: sdk 50%.
- [fail] Idempotency documented — No built-in retry machinery was found; transient failures are not retried. Investigated: sdk 0%.
- [fail] Runnable collection with test scripts — No public Postman workspace discovered for the org. Investigated: platform 0%.
- [skip] Rate-limit signaling — No surface produced evidence for this capability in this run.
- [skip] Pagination documented & consistent — No surface produced evidence for this capability in this run.

## Executive Summary

Delta's API discoverability and crawlability are solid foundations to build on, but two areas are holding back partner and agent adoption: agent-readiness (missing structured context, machine-readable instructions, and idempotency guidance means AI agents cannot reliably parse or act on your APIs) and developer onboarding (no self-service portal or quickstart means partners wait days or weeks for their first successful call). Closing these gaps — starting with agent understanding and runnable onboarding — will unlock self-serve partner growth and make Delta's APIs usable by the next generation of AI-driven integrations.