GitHub Copilot SDK Now in Public Preview

TL;DR

• Copilot SDK is now publicly available — embed Copilot's agent runtime directly into your apps
• Supports Node.js, Python, Go, .NET, and Java with custom tools, streaming, and permission controls
• Available to all Copilot subscribers and free tier users; BYOK support for enterprises

New

• Copilot SDK public preview — Embed production-tested agent runtime with tool invocation, streaming, file operations, and multi-turn sessions without building your own orchestration layer.
• Five language support — Build with Node.js/TypeScript, Python, Go, .NET, and Java out of the box.
• Custom tools and agents — Define domain-specific tools and let the agent decide when to invoke them with tailored instructions.
• Fine-grained prompt customization — Use replace, append, prepend, or dynamic transform callbacks to customize system prompt sections without rewriting the entire prompt.
• Streaming and real-time responses — Token-by-token streaming for responsive user experiences.
• Blob attachments — Send images, screenshots, and binary data inline without disk writes.
• OpenTelemetry support — Built-in distributed tracing with W3C trace context propagation across all SDKs.
• Permission framework — Gate sensitive operations with approval handlers or mark tools as read-only to skip permissions.
• Bring Your Own Key (BYOK) — Use your own API keys for OpenAI, Azure AI Foundry, or Anthropic.

Installation

• Node.js / TypeScript — npm install @github/copilot-sdk
• Python — pip install github-copilot-sdk
• Go — go get github.com/github/copilot-sdk/go
• .NET — dotnet add package GitHub.Copilot.SDK
• Java — Available via Maven.

Available to all Copilot and non-Copilot subscribers, including Copilot Free. Each prompt counts toward your premium request quota. Start with the getting started guide.

Source: GitHub Changelog