REST API Reference

Programmatic access to Dev Tools ! — 65+ developer tool functions as HTTP endpoints. Free for non-commercial use.

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Base URL

https://api.devtoolzy.com

Authentication

Read endpoints (GET) are open — no authentication required. Tool run, chat, and write endpoints require an API key:

X-Api-Key: your_key_here

Request an API key →

Rate Limits

Anonymous: 30 req/min. API key: 60 req/min. Returns 429 with Retry-After when exceeded.

Endpoints

Click an endpoint to see request/response examples.

Error Format

All errors use the same envelope shape:

{
  "ok": false,
  "error": {
    "code": "VALIDATION_ERROR",
    "message": "input must be a non-empty string",
    "field": "input"
  }
}
400VALIDATION_ERRORMissing or invalid input401UNAUTHORIZEDAPI key missing or invalid404TOOL_NOT_FOUNDUnknown tool slug429RATE_LIMITEDToo many requests501NOT_IMPLEMENTEDTool requires browser (WebCrypto, DOM)500INTERNAL_ERRORServer error — safe to retry

More integration options