Agent Surface

Let agents query the match graph.

Google was built for humans clicking links. Unfragile is built for agents calling capabilities. Install the MCP server so your agent can discover AI artifacts, evaluate trust, compare alternatives, and route to the right capability without scraping a webpage.

Install MCP server Try JSON search

Runtime discovery

Agents ask for a capability at task time instead of relying on hardcoded tool lists.

Machine-readable trust

Results include capabilities, rank, proof, permissions, risks, and alternatives.

Learning loop

Agent searches and feedback become graph memory that improves future routing.

Install

Published on npm as @unfragile/mcp-server. No API key is required for the public tier. Add UNFRAGILE_API_KEYfor higher rate limits.

Claude Code

claude mcp add unfragile -- npx -y @unfragile/mcp-server

Claude Desktop

{
  "mcpServers": {
    "unfragile": {
      "command": "npx",
      "args": ["-y", "@unfragile/mcp-server"]
    }
  }
}

Cursor

{
  "mcpServers": {
    "unfragile": {
      "command": "npx",
      "args": ["-y", "@unfragile/mcp-server"]
    }
  }
}

Windsurf

{
  "mcpServers": {
    "unfragile": {
      "command": "npx",
      "args": ["-y", "@unfragile/mcp-server"]
    }
  }
}

Tools exposed

search

Find AI artifacts by intent with capability matches and Match Proof.

find_mcps

Discover MCP servers for databases, APIs, files, services, and agent tools.

get_artifact

Fetch one artifact with capabilities, rank, pricing, and graph signal.

compare

Compare two artifacts by capabilities, pricing, rank, and trust evidence.

find_stack

Assemble an AI harness stack across frameworks, MCPs, APIs, agents, and CLIs.

feedback

Report success or failure so the graph learns from agent outcomes.

subscribe

Watch for new artifacts matching a capability need.

unsubscribe

Cancel a persistent graph monitor.

Ask your agent

Find MCP servers for read-only Postgres accessCompare Cursor and Claude Code for multi-file refactoringWhat stack should I use for a customer support agent with memory?Find a trusted open-source agent framework with tool calling

Capability DNS is the endgame.

An agent should be able to ask for capability://database.postgres.query.readonlyand receive current artifacts, constraints, permissions, trust evidence, alternatives, and known failure modes. The MCP server is the first production surface for that resolver.

curl "https://unfragile.ai/api/v1/resolve?capability=capability://database.postgres.query.readonly&passport=true"

View capability schema Download schema.json API docs