Crawl APIs
Scan a codebase for REST, GraphQL, gRPC and OpenAPI definitions
Test report
- Verdict
- Tested · Works
- Score
- Tested
- Jul 18, 2026
- Environment
- Claude Code 2.x (agent harness)
- Upstream re-checked
- Jul 30, 2026 · 9601850
⚠ This skill is no longer available upstream. Our re-check on Aug 10, 2026 couldn't find it any more (repo unreachable/deleted). The test below is what we measured on Jul 18, 2026 and we're leaving it up as a record — but there is nothing left to install, so we've removed the command.
Ran the skill's exact detection patterns against a purpose-built target holding six different API styles and it found all six (6/6) - including the NestJS decorator controller, the GraphQL schema, and the gRPC proto service that a naive one-pass grep-for-route/api baseline completely missed (3/6). The multi-protocol taxonomy plus dedup check and draft-only status discipline is a concrete, reproducible edge over ad-hoc searching. The write-back step depends on the catalog's models/registry-mapping.yaml and templates, so full registry output works within its home repo; the discovery core works anywhere.
Scored on four weighted criteria — install, triggering, output vs. baseline, docs. How scoring works
- Installs cleanly 5/5
- Triggers reliably 5/5
- Output vs. baseline 8/10
- Docs & honesty 5/5
What Crawl APIs does
Scans a target codebase for API definitions across OpenAPI/Swagger specs, Express/Fastify/NestJS routes, GraphQL schemas, gRPC protos and Python frameworks, then proposes draft api_contract and api_endpoint registry entries for review. Triggers when discovering, inventorying, or cataloging the APIs in a repo.
How to install Crawl APIs
Nothing to install: the source repository no longer has this skill. If the author brings it back, our daily re-check will pick it up and the command will reappear here.
Commands — how to trigger Crawl APIs
-
/crawl-apisScan a codebase for REST, GraphQL, gRPC and OpenAPI definitions
It also activates on plain-language prompts like these:
-
Scan my repo and find every REST, GraphQL, and gRPC API endpoint. -
I need an inventory of all the API contracts across this service. -
Can you catalog the OpenAPI, NestJS, and Express routes in this codebase?
Frequently asked questions
- Is the Crawl APIs skill free?
- Yes. The skill itself is free from ea-toolkit/architecture-catalog. SkillProof publishes the install command and an independent test verdict at no cost.
- Does Crawl APIs work with Claude Code?
- We tested it with Claude Code 2.x (agent harness) on Jul 18, 2026. Verdict: Tested · Works. Ran the skill's exact detection patterns against a purpose-built target holding six different API styles and it found all six (6/6) - including the NestJS decorator controller, the GraphQL schema, and the gRPC proto service that a naive one-pass grep-for-route/api baseline completely missed (3/6). The multi-protocol taxonomy plus dedup check and draft-only status discipline is a concrete, reproducible edge over ad-hoc searching. The write-back step depends on the catalog's models/registry-mapping.yaml and templates, so full registry output works within its home repo; the discovery core works anywhere.
- What is the Crawl APIs SkillProof Score?
- 9.2/10 — installs cleanly 5/5, triggers reliably 5/5, output vs. baseline 8/10, docs & honesty 5/5.
- How do I install Crawl APIs?
- Copy the install command from this page, run it in your terminal, and restart Claude Code. Skills live in ~/.claude/skills/ (global) or .claude/skills/ inside a project.
- Can I use Crawl APIs with Cursor, Copilot, Gemini CLI, Codex or other AI tools?
- The SKILL.md format is native to Claude (Claude Code, Desktop, claude.ai). The instructions inside adapt to other assistants: Cursor rules, GitHub Copilot instructions, Windsurf rules, Custom GPTs, AGENTS.md for OpenAI Codex, and GEMINI.md for Google Gemini CLI — our conversion guides cover each, and the free converter on the tools page does the wrapping for you.