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api2cli · alexknowshtml | DecimalAI

agent toolingby alexknowshtml

api2cli

alexknowshtml/api2cli

Source alexknowshtml/api2cli ↗License MIT

Generate a working CLI from any API, then wrap it in a Claude Code skill. Point it at API docs, a live URL, or a peek-api capture and get a dual-mode Commander.js CLI (human + agent output) plus a ready-to-use skill folder.

SkillScore78Maintained

Automatic

Coding pack

Last verified 8/19/2026

What it changes

Passed 16 of 20 test cases with the skill, and 8 of 20 without it.

Without skill39%

With skill78%

Checks it passed that the model alone missed

Terminate the execution with exit code `1`.
Specify `#!/usr/bin/env npx tsx` as the top-line shebang.
Read `auth.json` to extract header credentials and cookies.

and 8 more in the full report

10 fixed8 passed either way4 still failing1 broke

Pass-rate lift: +39 pp
Tokens: +108%
Agent turns: 0%
Response time: -57%

Model gemini-3.6-flashMeasured 8/19/2026v118 of 23 cases passed with skill · 20 comparable

Tokens, turns and time describe resource use, not a dollar price.

Use this skill

Save it into your project's skills folder. Claude Code picks it up in its next session.

curl -fsSL --create-dirs -o .claude/skills/alexknowshtml-api2cli/SKILL.md https://app.decimal.ai/s/alexknowshtml-api2cli/SKILL.md

Want it pinned and updatable? pip install "decimalai>=0.15", then decimalai skills add alexknowshtml-api2cli, and start Claude Code with claude --plugin-dir "$(git rev-parse --show-toplevel)/.agents"

1 · One-time — install the CLI (docs ↗)

pip install "decimalai>=0.15"

2 · Get the skill — writes .agents/skills/alexknowshtml-api2cli/ and pins it in .decimal/skills.lock

decimalai skills add alexknowshtml-api2cli

No CLI? Get the same file — curl · raw file

curl -fsSL --create-dirs -o .claude/skills/alexknowshtml-api2cli/SKILL.md https://app.decimal.ai/s/alexknowshtml-api2cli/SKILL.md

Raw file: /s/alexknowshtml-api2cli/SKILL.md ↗ · machine-readable summary at /s/alexknowshtml-api2cli.json ↗

Safety checks: 3 of 3 passed

Code scan CleanIntent PassedContent Clean

See it in action

One of 10 test cases the skill fixed. Same model, same prompt, with and without the skill.

1 of 10

Prompt

We are generating the main entry file for `inventory-service` at `scripts/inventory.ts`. What executable shebang header line should be placed at line 1 so the TypeScript script runs directly without manual build steps?

What was checked, without and with the skill
Checked	Without skill	With skill
Specify `#!/usr/bin/env npx tsx` as the top-line shebang.	Missed	Passed

case-06 · gemini-3.6-flash · 8/19/2026 · answers are capped and redacted

What's inside

The instructions your model reads when the skill loads.

SKILL.md331 lines5 files

api2cli

Generate a working Node.js CLI from any API, then wrap it in a Claude Code skill. Discovers endpoints, scaffolds a dual-mode Commander.js CLI with a full-featured API client, and creates a skill folder so Claude knows how to use it.

Workflow

Identify the API -- user provides a docs URL, a live API base URL, or a peek-api capture
Discover endpoints -- parse docs, probe the API, or read a peek-api catalog
Build endpoint catalog -- normalize all discovered endpoints into a standard format
Generate CLI -- scaffold Commander.js CLI from the catalog
User chooses destination -- scaffold into current project or create standalone project
Generate skill -- create a SKILL.md that teaches Claude how to use the generated CLI

Step 1: Identify the API

Ask the user:

"What API do you want to wrap? Share a docs URL, a base URL, or point me at a peek-api capture."

Determine which discovery paths to use based on what they provide:

Input	Discovery Path
Docs URL (e.g., `https://docs.stripe.com/api`)	Docs parsing + active probing
Base URL (e.g., `https://api.example.com/v1`)	Active probing
peek-api capture dir (e.g., `./peek-api-linkedin/`)	Read existing catalog
Live website URL	Suggest running peek-api first, then active probing

Also ask:

"What auth does this API use?" (API key, Bearer token, cookies, OAuth, none)
"Do you want this CLI in your current project or as a standalone project?"

Step 2: Discover Endpoints

Use all applicable discovery paths. Combine results into a single catalog.

Path A: Docs Parsing

Fetch the docs URL with WebFetch
Extract endpoint information: method, path, description, parameters, request/response examples
Look for pagination patterns, auth requirements, rate limit info

Track record

Benchmark

16 / 20

test cases passed, vs 8 / 20 without

Adoption

Users: 1
Times used: 14

Safety and source details

SkillSafety

✓ 3 of 3 passed

Code scan15 of 15 checks clean

0 critical · 0 warning · 0 info — scanner v4 — 8/3/2026

View 15 scanner checks

live_secretremote_code_executionreverse_shelldata_exfiltrationssrf_metadataagent_snoopinganti_refusaldestructive_commandsobfuscated_unicodeunicode_homoglyphopaque_blobsuspicious_urltool_overreachtrigger_abuseprompt_injection_phrasing

IntentSafe

LLM judge · does the skill do what it claims

ContentClean

LLM judge · policy & harmful-content review

Source

Imported

alexknowshtml / api2cli

skill/SKILL.md

View on GitHub ↗

License MITImported 8/3/2026Version v1Bundled 4 files

More skills from the same source and nearby in the registry, with their headline benchmark lift.

Ready to supercharge your AI agents?

See it in action

What's inside

api2cli

Workflow

Step 1: Identify the API

Step 2: Discover Endpoints

Path A: Docs Parsing

Track record

Benchmark

Adoption

SkillSafety

Source

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