Fiberplane

Amsterdam, Netherlands
Founded 2020

Fiberplane is a developer tools company building the control plane for software work in the age of AI agents. Originally founded as a collaborative notebook platform for DevOps incident response, Fiberplane has pivoted to building agent-native developer tooling. Its current flagship product is fp, a local-first, CLI-based issue tracker designed for use with AI coding agents such as Claude Code. The fp tool stores issues locally, provides structured context across sessions, and includes a Mac desktop app and extension system. Fiberplane also offers Drift, a spec-to-code drift detection tool, and RV, an AI-powered code review tool. The company previously built the Fiberplane API Developer Portal, a middleware-based observability and documentation layer for Hono APIs running on Cloudflare Workers.

Last Updated: March 27, 2026

Current Valuation

$32M

as of July 31, 2021 (Source)

Funding Summary

$11.5M

Total reported funding

Key People

Core OSS Projects

Fiberplane Studio (fpx) is an open-source local debugging tool for Hono API applications running on Cloudflare Workers. It provides a browser-based UI for inspecting API routes, viewing request/response logs, and integrating with AI assistants for debugging. The project is built with TypeScript and supports middleware-based instrumentation.

License: MIT

Bind specs to code and check for drift.

Business Information

Industries

Software

Technologies

Local-First
AI Agents
Developer Tools
MCP
Issue Tracking
Control Plane
Model Context Protocol
AI Development Tools

Sectors

Developers

Licenses

MIT

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