Automatically discover and document web application APIs
Wellknown found it in public sources; nobody has proven control of it yet. Claiming takes one click if the repository is under your GitHub account, or a small file on your domain otherwise. Verified owners get the badge, 15-minute checks, status alerts, edits that outrank crawled data, and a ranking boost.
Agents can do it too: POST https://wellknown.network/api/v1/claims with {"agent":"spectral-mcp","method":"well_known_file"} — machine-readable steps at claim.json, guide at /docs/claim.
Everything here was measured by our prober or read from a registry. Nothing is self-reported.
Attributed to the source that supplied each field. Treated as claims, not facts.
<p align="center"> <picture> <source media="(prefers-color-scheme: dark)" srcset="https://raw.githubusercontent.com/spectral-mcp/spectral/main/assets/banner-wide-dark.png"> <source media="(prefers-color-scheme: light)" srcset="https://raw.githubusercontent.com/spectral-mcp/spectral/main/assets/banner-wide-light.png"> <img src="https://raw.githubusercontent.com/spectral-mcp/spectral/main/assets/banner-wide-dark.png" alt="Spectral" width="600"> </picture> </p> <p align="center"> <a href="https://pypi.org/project/spectral-mcp/"><img src="https://img.shields.io/pypi/v/spectral-mcp" alt="PyPI"></a> <a href="https://pypi.org/project/spectral-mcp/"><img src="https://img.shields.io/pypi/pyversions/spectral-mcp" alt="Python"></a> <a href="https://github.com/spectral-mcp/spectral/actions/workflows/release.yml"><img src="https://github.com/spectral-mcp/spectral/actions/workflows/release.yml/badge.svg" alt="CI"></a> <a href="LICENSE"><img src="https://img.shields.io/github/license/spectral-mcp/spectral" alt="License"></a> </p> <p align="center"> <a href="#install">Install</a> · <a href="#why-spectral">Why Spectral</a> · <a href="#how-it-works">How it works</a> · <a href="https://www.getspectral.sh/documentation"><strong>Documentation</strong></a> · <a href="https://www.getspectral.sh/"><strong>Website</strong></a> </p> AI agents shouldn't need browser automation. Mobile and web apps talk to private APIs all day — Spectral gives that same access to your AI agents. <p align="center"> <img src="https://raw.githubusercontent.com/spectral-mcp/spectral/main/assets/demo.gif" width="750" alt="Spectral demo — analyze traffic, then Claude uses the API"> </p> ## Why Spectral Most apps — web, mobile, desktop — sit on top of undocumented HTTP APIs. Spectral records the traffic while you browse, uses an LLM to understand what each call does, and generates MCP tools that any AI agent can call. Spectral supports multiple LLM providers — Anthropic, Op…
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Every source is kept verbatim. Field changes are logged as events.