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index9-org/mcp

Connects your editor to Index9's model directory and OpenRouter for live inference. You get five tools: list_facets for browsing providers and capabilities, find_models for semantic search across 300+ AI models, get_models for bulk metadata retrieval, compare_models for side-by-side diffs of pricing and context windows, and test_model for running live inference or dry-run cost estimates. Requires an OpenRouter API key for actual model calls, but you can explore and compare without one. Useful when you're evaluating models for a project and want to test prompts against multiple providers without leaving your editor or writing integration code.

tools
5
auth
Secret needed
transport
STDIO
env var
1
last updated
May 18, 2026
View on GitHub

Tools

5 tools

Public tool metadata for what this MCP can expose to an agent.

list_facetsList available providers, capabilities, modalities, and tokenizers

List available providers, capabilities, modalities, and tokenizers

No parameter schema in public metadata yet.

find_modelsSearch AI models by semantic query or filters

Search AI models by semantic query or filters

No parameter schema in public metadata yet.

get_modelsFetch full model metadata for up to 100 IDs or aliases

Fetch full model metadata for up to 100 IDs or aliases

No parameter schema in public metadata yet.

compare_modelsDiff 2-10 models across pricing, context, capabilities, and tokenizer

Diff 2-10 models across pricing, context, capabilities, and tokenizer

No parameter schema in public metadata yet.

test_modelRun live inference or dry-run cost estimates on 1-10 models (requires OpenRouter API key)

Run live inference or dry-run cost estimates on 1-10 models (requires OpenRouter API key)

No parameter schema in public metadata yet.

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Configuration

OPENROUTER_API_KEYsecret

Required for live test_model calls. dryRun=true works without it.

Readme

@index9/mcp

Discover, shortlist, compare, cost-model, and live-test 300+ AI models from your editor

Per-editor install configs (Cursor, VS Code, Claude Code, Codex): https://index9.dev/#install

Install

npx -y @index9/mcp@latest

Generic MCP client config:

{
  "mcpServers": {
    "index9": {
      "command": "npx",
      "args": ["-y", "@index9/mcp@latest"],
      "env": {
        "OPENROUTER_API_KEY": "sk-or-..."
      }
    }
  }
}

Claude Code one-liner: claude mcp add --transport stdio index9 -- npx -y @index9/mcp.

OpenRouter API key

Required for live test_model calls. Set OPENROUTER_API_KEY in your MCP client config. dryRun=true works without it.

Tools

  • list_facets: List available providers, capabilities, modalities, and tokenizers
  • find_models: Search AI models by semantic query or filters
  • get_models: Fetch full model metadata for up to 100 IDs or aliases
  • compare_models: Diff 2-10 models across pricing, context, capabilities, and tokenizer
  • test_model: Run live inference or dry-run cost estimates on 1-10 models (requires OpenRouter API key)

Response metadata

View the full README on GitHub

Details

Repository
github.com/index9-org/mcp
Package
@index9/mcp
Transport
STDIO
Auth
Required
Registry
MCP registry, active