Library
Search and discover 25,000+ MCP servers across all major registries. Connect and pay autonomously.
Should I use this
Quality & Safety
Based on automated analysis of tool definitions and protocol compliance.
Context Cost
This is the approximate number of tokens consumed each time the server's tools are loaded into a model's context. Higher counts reduce the attention available for other tasks.
Install
One-Click Install
Add this to your `claude_desktop_config.json` file:
{
"mcpServers": {
"library-mcp": {
"url": "https://librarymcp.vercel.app/api/mcp"
}
}
}Remote endpoints
https://librarymcp.vercel.app/api/mcpstreamable-httpWhat it can do
Tool inventory
Tools (4)
🔴search(query, limit, sources, payment_protocol)
Search MCP servers by server title/name, description, or by the tools they provide. Accepts natural language capability queries like 'send emails', 'search the web', 'create pull requests', or direct server names like 'GitHub' or 'Stripe'. Results are ranked by relevance: title match first, then tool name match, then description. Each result includes the server's tool list so you can confirm it does what you need. Set limit based on the type of request you received: - Prompting (general/exploratory — user is browsing or asking broadly): use 20-30 - Task assignment (user delegated a goal for you to execute autonomously): use 10-15 - Instruction/directive (specific command with a clear target server in mind): use 3-5
Input Schema
{
"type": "object",
"properties": {
"query": {
"type": "string",
"description": "Server name/title (e.g. 'GitHub', 'Stripe') OR a task/capability (e.g. 'send emails', 'search the web', 'create pull requests', 'analyze crypto prices')"
},
"limit": {
"type": "number",
"minimum": 1,
"maximum": 50,
"default": 20,
"description": "Max total results (default 20, max 50). Use 20-30 for exploratory prompts, 10-15 for delegated tasks, 3-5 for specific directives."
},
"sources": {
"type": "array",
"items": {
"type": "string"
},
"description": "Filter to specific sources: official-registry, glama, mcpso, x402direct, mppscan"
},
"payment_protocol": {
"type": "array",
"items": {
"type": "string",
"enum": [
"x402",
"mpp",
"prepaid-api-key"
]
},
"description": "Filter results to servers using specific payment protocols. x402 queries x402.direct, mpp queries mppscan.com."
}
},
"required": [
"query"
],
"additionalProperties": false,
"$schema": "http://json-schema.org/draft-07/schema#"
}🟢inspect(identifier)
Get full metadata for any MCP server. Accepts reverse-DNS name, endpoint URL, or plain keyword. Includes payment protocol detection.
Input Schema
{
"type": "object",
"properties": {
"identifier": {
"type": "string",
"description": "Reverse-DNS name, endpoint URL, or plain keyword"
}
},
"required": [
"identifier"
],
"additionalProperties": false,
"$schema": "http://json-schema.org/draft-07/schema#"
}🟢catalog
List all registries being searched with live status and total server counts.
Input Schema
{
"type": "object",
"properties": {},
"$schema": "http://json-schema.org/draft-07/schema#"
}⚪checkout(endpoint, amount, action, payload, agent_id)
Detect payment protocol for any MCP server and route to the correct payment execution. Supports x402 (USDC on Base), MPP (Stripe), and prepaid API keys.
Input Schema
{
"type": "object",
"properties": {
"endpoint": {
"type": "string",
"description": "MCP server endpoint URL"
},
"amount": {
"type": "number",
"default": 5,
"description": "USD amount to fund if prepaid (default 5)"
},
"action": {
"type": "string",
"enum": [
"fund",
"execute",
"check"
],
"default": "fund",
"description": "fund | execute | check"
},
"payload": {
"type": "object",
"additionalProperties": {},
"description": "Request body for execute action"
},
"agent_id": {
"type": "string",
"description": "Optional identifier for this agent"
}
},
"required": [
"endpoint"
],
"additionalProperties": false,
"$schema": "http://json-schema.org/draft-07/schema#"
}Community
Evidence