Skip to main content
@anonymous-dev/0x0-server is the local runtime for AI-powered developer tools. It exposes one provider layer over OpenAI and Anthropic models. Clients can call it through HTTP for simple requests or WebSocket for editor sessions, agent turns, cancellation, and change review.

​
What It Provides

  • Provider discovery through GET /providers
  • Streaming chat through POST /chat
  • One-shot code completion through POST /completions
  • One-shot inline edits through POST /inline-edit
  • Git-backed agent sessions over /ws
  • Worktree-based change review with accept and discard operations
  • Shared schemas from @anonymous-dev/0x0-contracts

​
Quick Start

# from the 0x0 repo
bun install

OPENAI_API_KEY=... ANTHROPIC_API_KEY=... bun run --cwd apps/server dev
The server listens on http://127.0.0.1:4096 by default. Set PORT to choose another port.

​
Runtime Shape

| Surface | Use it for | |---|---|---| | HTTP | Stateless chat, completion, inline-edit, provider, and session endpoints | | SSE | Streaming output from POST /chat | | WebSocket | Editor sessions, long-running agent turns, cancellation, and review state | | Worktrees | Isolated agent edits before the user accepts or discards changes |

​
Documentation

Configuration

Environment variables, port selection, and local state

API Reference

HTTP endpoints, WebSocket messages, and stream events

Providers

OpenAI and Anthropic provider configuration