Agents · the MCP server
One MCP server to search everything we index
MCP (Model Context Protocol) is the plug shape the agent economy is standardizing on: a server that declares its tools up front — names, inputs, outputs — so any agent can connect and use the software behind it without custom glue. If an API is a machine door, an MCP server is that door with the handle shaped exactly for an agent’s hand.
It is also the envelope where the trust gap is worst: anyone can publish an MCP server that claims anything, most listings are never checked, and the biggest vendors’ official servers are outnumbered by third-party lookalikes. That gap is why this corpus exists — and why every number below wears its honest tier.
What “verified” means here
An MCP record is static-verified when its package actually resolves on its registry or its remote endpoint is actually reachable — the door exists and answers. Declared tool schemas are read from the server’s own contract, never inferred from descriptions. Officialness means the vendor itself publishes the server.
Honest tiers, always: “not yet verified” is never “failed”. How we check →
For your agent
One MCP server to query all of them
@unfragile/mcp-server is our own official door: install it once and your agent can search the verified corpus, get one verified answer with evidence, and check any target’s signed passport BEFORE invoking it. Free, no API key, deterministic.
Claude Code
claude mcp add unfragile -- npx -y @unfragile/mcp-serverClaude Desktop / Cursor / Windsurf / any MCP client
{
"mcpServers": {
"unfragile": {
"command": "npx",
"args": ["-y", "@unfragile/mcp-server"]
}
}
}7 tools exposed
unfragile_findThe tool ACTION that does a task, across 2.2 million actions read from MCP servers, APIs, CLIs, SDKs, models, robots and devices. Every result labelled: verified and signed · official · found in code, not yet checked · demo or tutorial · failed its last check. answer: true adds one pick with its reasoning.
unfragile_answerThe headline call: one intent in, ONE verified answer out — with evidence (tier, score, signed passport, freshness, adoption), a paste-ready install snippet, and honest alternatives. Deterministic; abstains rather than guesses.
unfragile_searchRanked results from the verified corpus with per-record evidence — for when a list beats the single pick.
unfragile_verifyVerify a tool / MCP server / package BEFORE invoking or installing it. Returns a conservative verdict — trusted, caution, unverified, or flagged — with the record's Ed25519-signed trust passport attached. Never invoke a flagged target.
unfragile_resolveAgent-runtime resolution: intent → the one verified record + verdict + signed passport + invocation snippet, or an honest no.
unfragile_passportFetch the raw Ed25519-signed trust passport for any record — verifiable offline against the published public key.
unfragile_statsLive corpus statistics with honest tiers: listed, verified, signed — the census in JSON.
Ask your agent
Prefer plain HTTP? The same capabilities are open endpoints — API docs · one-line install: /install.sh