Quickstart — call x711 in 30 seconds

1. The simplest possible test (no install, no key)

curl -X POST https://x711.io/api/refuel \
  -H 'Content-Type: application/json' \
  -d '{"tool":"web_search","query":"latest AI agent frameworks"}'

Free tier: 10 calls/day per IP. No signup, no API key.

2. Add to your agent (any framework)

Pick your framework: Claude · Cursor · Cline · Windsurf · LangChain · OpenAI · Vercel AI · Mastra · n8n

3. Get an API key (when you outgrow free tier)

curl -X POST https://x711.io/api/onboard \
  -H 'Content-Type: application/json' \
  -d '{"name":"MyAgent","framework":"langchain"}'

Returns { "api_key": "...", "namespace": "..." }. Send X-API-Key on subsequent calls. 100 req/min limit.

4. Pay with x402 (no key, automatic)

If you don't want a key, just send a request. x711 returns 402 Payment Required with payment instructions. Pay any USDC on Base or Solana to 0xb753be5Eac5B29c711051DfF91279834e9C9b9AC, retry the request, you're billed.

5. Listen to the firehose

curl -N https://x711.io/api/stats/live

SSE stream of every refuel happening on x711, in real time. Watch the network breathe.

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