api-saas — Pay-per-call extraction for autonomous agents

Endpoints

All endpoints accept JSON and return JSON. Auth via Bearer key, RapidAPI proxy header, or x402 payment.

Endpoint	What it does	Cost / call
POST /api/v1/extract/markdown	URL → clean Markdown. No JS render; SSRF-guarded.	$0.003
POST /api/v1/extract/url-to-text	URL → plain readable text.	$0.002
POST /api/v1/extract/structured	URL + JSON Schema → structured JSON.	$0.020
POST /api/v1/search/web	Brave-backed web search; normalized JSON results.	$0.005

Markdown extraction

curl -X POST https://api-saas.vercel.app/api/v1/extract/markdown \
  -H "Authorization: Bearer $API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"url":"https://example.com"}'

Plain text extraction

curl -X POST https://api-saas.vercel.app/api/v1/extract/url-to-text \
  -H "Authorization: Bearer $API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"url":"https://example.com"}'

Structured extraction

curl -X POST https://api-saas.vercel.app/api/v1/extract/structured \
  -H "Authorization: Bearer $API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "url": "https://example.com",
    "json_schema": {"type":"object","properties":{"title":{"type":"string"}}}
  }'

Web search

curl -X POST https://api-saas.vercel.app/api/v1/search/web \
  -H "Authorization: Bearer $API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"query":"agentic AI","count":5}'

Three payment channels

The same auth dependency walks three channels per request. Use whichever fits your agent.

RapidAPI marketplace

Sign up, paste your key, get billed by RapidAPI. Free distribution; ~20% take.

Coming soon

Bearer key

Authorization: Bearer <token>. SHA-256 hashed against the api_keys table.

-H "Authorization: Bearer $API_KEY"

x402 (USDC on Base)

Autonomous agents pay per-call without signing up. Sign an EIP-3009 transfer authorization and retry with X-Payment.

x402 — first response

402 Payment Required
Content-Type: application/json

{
  "x402Version": 1,
  "error": "X-Payment header required",
  "accepts": [
    {
      "scheme": "exact",
      "network": "base-sepolia",
      "maxAmountRequired": "3000",
      "asset": "0x036CbD53842c5426634e7929541eC2318f3dCF7e",
      "extra": { "name": "USDC", "version": "2" },
      "payTo": "0x...",
      "resource": "https://api.your-domain/api/v1/extract/markdown"
    }
  ]
}

Get started

Sign up on RapidAPI Coming soon
Marketplace listing is in review. Use a Bearer key in the meantime.
Or request a Bearer key
See the README's local-development section for the seed script and api_keys table.

curl it

curl -X POST https://api-saas.vercel.app/api/v1/extract/markdown \
  -H "Authorization: Bearer $API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"url":"https://example.com"}'

Pay-per-call extraction primitives for autonomous agents.