AISOTools MCP Server

A hosted Model Context Protocol server over the AISOTools catalog — 3,064 AI tools with pricing, ratings, features, pros, cons, and curated alternatives.

There is nothing to install. The server is a stateless Streamable HTTP endpoint:

https://aisotools.com/api/mcp

Every result carries the canonical https://aisotools.com/tool/<slug> page for the tool, so an assistant answering "what's the best transcription API?" can cite a source rather than paraphrase from memory.

Tools

Tool	What it does
`search_ai_tools`	Search the catalog by keyword, `category`, and `pricing` (`free`/`freemium`/`paid`). Ranked summaries.
`get_ai_tool`	Full record for one tool — description, features, pros, cons, who it's best for, pricing tiers, alternatives. Accepts a slug or a display name.
`list_ai_tool_categories`	Every category with its slug, subcategories, and tool count. Use the slugs to filter `search_ai_tools`.
`compare_ai_tools`	Side-by-side comparison of 2–5 named tools. Names it can't resolve come back in an `unmatched` array rather than being silently dropped.
`find_ai_tool_alternatives`	Alternatives to a given tool. Curated alternatives and same-category fallbacks are returned in separate fields, not blended.

Read-only. No authentication, no API key, no rate-limit signup.

Connect

Claude Code

claude mcp add --transport http aisotools https://aisotools.com/api/mcp

Claude Desktop / any client without native HTTP transport

{
  "mcpServers": {
    "aisotools": {
      "command": "npx",
      "args": ["-y", "mcp-remote", "https://aisotools.com/api/mcp"]
    }
  }
}

Raw JSON-RPC

curl -sS https://aisotools.com/api/mcp \
  -H 'Content-Type: application/json' \
  -H 'Accept: application/json, text/event-stream' \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/list"}'

Notes on the data

totalTools is 3,064 at the time of writing and moves as the catalog grows; search_ai_tools reports both matched and searched so you can see the denominator it actually searched.
sponsored is computed against the placement's expiry, so a lapsed sponsorship reports false rather than staying flagged forever. Sponsored placement never changes search ranking.
Ratings and review counts are catalog metadata, not live scrapes.

Protocol

Streamable HTTP, protocol version 2025-06-18. POST only — GET and DELETE answer 405 (the server is stateless, so there is no SSE stream or session to resume). Notifications answer 202 with no body. JSON-RPC batches are supported.