Beacon
Beacon is an MIT-licensed tool from Asymptote Labs that captures session history from Claude Code, Cursor, Codex, OpenCode and 20+ other agent harnesses, normalizes it into one trace format, and turns useful workflows and corrections into reusable knowledge for future agents.
About Beacon
What is Beacon?
An MIT-licensed, local-first memory and trace layer for AI coding agents from Asymptote Labs. It captures sessions from Claude Code, Cursor, Codex, OpenCode and 20+ other harnesses, normalizes them into one OpenTelemetry-based format, and turns useful workflows and corrections into knowledge future agents can reuse.
How it works
- Install with Homebrew, a verified .deb/.rpm, or a Windows MSI; history is kept as JSONL on your machine.
- Browse traces in a terminal UI or a local read-only dashboard with sandboxed "lenses".
- Reviewed knowledge reaches agents as Beacon Skills or over MCP (local server or OAuth-based hosted server).
- Also covers Claude.ai/ChatGPT browser chats, cloud agents, CI jobs and a TypeScript SDK.
- Forward the same data to Splunk, Datadog, Elastic, Sentinel, S3, GCS and more.
Pricing
The open-source agent is free. Beacon Cloud has a free plan (50 findings, MCP session search), Pro at $20/month billed annually, Team per seat, and custom Enterprise with risky-action blocking, fleet rollout and SSO.
Company
Asymptote Labs, Inc. (New York), founded by Justin D'Souza and Shukan Shah; raised a $5.5M seed led by Tower Research Ventures in October 2026.
Value & Audience
Value Proposition
Keeps what you teach one coding agent from being lost when you switch tools: one open, local-first record of every agent session that future agents can search and learn from.
Problem Solved
Agent memory and history are locked inside each harness, so knowledge disappears when a session ends or a developer switches tools, and teams have no shared view of what their agents actually did.
Tech Stack
Social & Links
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Feedback & Roadmap
Beacon FAQ
Common questions about Beacon's features, pricing, and use cases
Is Beacon free to use?
Beacon has a free tier plus paid plans, starting at Open source / Beacon Cloud Free - $0 - MIT agent; cloud: 20+ agents, 50 findings, MCP session search, share sessions. Plans listed: Open source / Beacon Cloud Free - $0 - MIT agent; cloud: 20+ agents, 50 findings, MCP session search, share sessions; Beacon Cloud Pro - $20/month (billed annually) - unlimited findings, full MCP, agent memories, skills from sessions, real-time alerts; Team - $30/seat/month + $10/month base (billed annually, up to 20 seats); Enterprise - custom.
What are some alternatives to Beacon?
Popular Developer Tools alternatives to Beacon include CodeSpy, DevOp and Global TTFB Checker.
Beacon appears in
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