# json-tool

> JSON toolbox API for agents: validate with error line/column, pretty-print, minify, JSON↔CSV, JSON→YAML, JSON→TOON (token-compact for LLMs) and structural diff. $0.001 per call via x402 (USDC on Base). Free demo, no account.

- Base URL: https://json-tool.restockalarm.workers.dev
- Pay per call via x402: USDC on Base (eip155:8453) or Polygon PoS (eip155:137), payTo 0x7B97303d62517eA9E26D1E1b199Eac42a487F430
- Free demo: 3 calls/day per IP under /demo/...
- Card alternative: X-API-Key header. Credit packs (all APIs): 250 calls $1.25 https://space-command-kits-shop.fourthwall.com/products/api-credits-250-calls | 1000 calls $5 https://space-command-kits-shop.fourthwall.com/products/api-credits-1000-calls | 5000 calls $15 https://space-command-kits-shop.fourthwall.com/products/api-credits-5000-calls; claim key https://api-keys.restockalarm.workers.dev/claim
- OpenAPI: https://json-tool.restockalarm.workers.dev/openapi.json
- Manifest: https://json-tool.restockalarm.workers.dev/.well-known/x402.json

## Endpoints
- POST https://json-tool.restockalarm.workers.dev/v1/json?op={op} — $0.001 — JSON op on the request body: validate, format, minify, to-csv, from-csv, to-yaml, to-toon, diff
- GET https://json-tool.restockalarm.workers.dev/v1/json-get?op={op}&input={json} — $0.001 — Same as POST /v1/json for small inputs via ?input=

## Related
- https://web-md.restockalarm.workers.dev — URL → Markdown
- https://email-check.restockalarm.workers.dev — Email validation
- https://url-meta.restockalarm.workers.dev — Link preview / OG metadata
- https://qr-gen.restockalarm.workers.dev — QR code generator
- Catalog: https://product-katalog.restockalarm.workers.dev/llms.txt