FastClaw

AI agent API snippet generator — curl, JavaScript and Python

Build ready-to-paste code for an OpenAI-compatible agent chat endpoint, with per-end-user isolation and streaming. Works with FastClaw's /v1/chat/completions.

Sent as the user field — that user's history and personal memory stay private to them.

Sent as X-Fastclaw-Session-Key — keep it stable per conversation, e.g. myapp:conv_42.

The key stays a placeholder: read it from FASTCLAW_API_KEY on your server, never ship it to the browser.

POST /v1/chat/completions · curl
curl -sN "http://localhost:18953/v1/chat/completions" \
  -H "Authorization: Bearer $FASTCLAW_API_KEY" \
  -H "Content-Type: application/json" \
  -H "X-Fastclaw-Session-Key: myapp:conv_42" \
  -d '{
  "user": "user-123",
  "stream": true,
  "messages": [
    {
      "role": "user",
      "content": "Summarize today'\''s support tickets"
    }
  ]
}'

Need a key?

Create a user-scope key in the console or with fastclaw apikey create --type user.

Related

Runtime API

Drive FastClaw agents from any app: OpenAI-compatible chat completions, agent management, per-end-user isolation, usage reporting and ACP.

SaaS builders

Give every customer their own AI agent without building a runtime. FastClaw handles agents, end-user isolation, sandboxed tools and usage metering over an API.

PostgreSQL

Swap FastClaw's default SQLite file for PostgreSQL to run multiple pods behind a load balancer, with automatic schema migrations.

Try it on your own agents

Start free in FastClaw Cloud, or self-host the single binary in a minute.

Get started freeSee pricing