Fiberplane

Fiberplane is an Amsterdam-founded developer-tools company, backed by Northzone, building agent-native tooling for the "software factory" era of AI coding agents. Its current lineup centers on fp (fp.dev), a local-first CLI for tracking work when coding with AI agents such as Claude Code; EV, an AI-powered code-review tool that turns diffs into narratives; and DRIFT, an open-source tool that binds specifications to code and lints for drift before stale docs reach production. Fiberplane also maintains a Model Context Protocol (MCP) toolchain — mcp-lite (a small, fetch-first SDK for building MCP servers), an MCP Gateway for intercepting and debugging MCP servers, and a Console for reviewing and evaluating MCP servers. Earlier work includes the Hono-native API Playground/Studio, the HONC.dev stack (create-honc-app), @fiberplane/agents for introspecting Cloudflare Agents SDK apps, and collaborative observability notebooks for incident response. The company ships its libraries on npm under the @fiberplane scope and distributes its CLI binaries via a Homebrew tap and an install script.

Fiberplane is profiled on the APIs.io network. Tagged areas include Company, Enterprise, Developer Tools, Agents, and MCP.

Fiberplane’s developer surface includes documentation, getting-started guide, engineering blog, support, CLI, and 8 more developer resources.

🌐 Visit website 📡 Source on GitHub

19.5/100 emerging ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-28 · rubric v0.5

0 APIs

CompanyEnterpriseDeveloper ToolsAgentsMCPModel Context ProtocolDeveloper ExperienceCLIObservabilityTypeScriptHonoAI Coding

Kin Score

Kin Score How this is scored →
scored 2026-07-28 · rubric v0.5

Composite quality — 19.5/100 · emerging

Contract Quality 0.0 / 25

Developer Ergonomics 7.8 / 20

Commercial Clarity 4.2 / 20

Operational Transparency 0.7 / 13

Governance 0.0 / 12

Discoverability 6.8 / 10

Agent readiness — 0/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 15

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/fiberplane: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Get Started 1

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

Build 4

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

Packages

SDKs

CLI

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Source (apis.yml)

aid: fiberplane
name: Fiberplane
description: Fiberplane is an Amsterdam-founded developer-tools company, backed by Northzone, building agent-native tooling
  for the "software factory" era of AI coding agents. Its current lineup centers on fp (fp.dev), a local-first CLI for tracking
  work when coding with AI agents such as Claude Code; EV, an AI-powered code-review tool that turns diffs into narratives;
  and DRIFT, an open-source tool that binds specifications to code and lints for drift before stale docs reach production.
  Fiberplane also maintains a Model Context Protocol (MCP) toolchain — mcp-lite (a small, fetch-first SDK for building MCP
  servers), an MCP Gateway for intercepting and debugging MCP servers, and a Console for reviewing and evaluating MCP servers.
  Earlier work includes the Hono-native API Playground/Studio, the HONC.dev stack (create-honc-app), @fiberplane/agents for
  introspecting Cloudflare Agents SDK apps, and collaborative observability notebooks for incident response. The company ships
  its libraries on npm under the @fiberplane scope and distributes its CLI binaries via a Homebrew tap and an install script.
url: https://raw.githubusercontent.com/api-evangelist/fiberplane/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- northzone
x-tier: stub
x-tier-reason: portfolio-lead
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://avatars.githubusercontent.com/u/61152955?s=200&v=4
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-19'
tags:
- Company
- Enterprise
- Developer Tools
- Agents
- MCP
- Model Context Protocol
- Developer Experience
- CLI
- Observability
- TypeScript
- Hono
- AI Coding
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://fiberplane.com
- type: Documentation
  url: https://docs.fiberplane.com
- type: GettingStarted
  url: https://fp.dev
- type: Blog
  url: https://blog.fiberplane.com/blog/
- type: GitHubOrganization
  url: https://github.com/fiberplane
- type: Support
  url: https://discord.com/invite/9xHGYRgsFV
- type: TermsOfService
  url: https://fiberplane.com/terms
- type: PrivacyPolicy
  url: https://fiberplane.com/privacy
- type: LLMsTxt
  url: llms/fiberplane-llms.txt
- type: Packages
  url: packages/fiberplane-packages.yml
- type: SDKs
  url: packages/fiberplane-packages.yml
- type: CLI
  url: cli/fiberplane-cli.yml
- type: DomainSecurity
  url: security/fiberplane-domain-security.yml
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence