What tools are available in the free tier?
Only the web search tool is free, limited to 3 calls per day. All other tools require pay-per-use.
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Basic information
Access 5+ ATXP agent tools via MCP: web search, AI image generation, email (send/inbox), and music generation. Free tier: 3 web searches/day. Pro tier: all tools, pay-per-use via x402 micropayments (USDC on Base mainnet, $0.01-0.15/call). No subscription, no API key needed.
Add this server to your MCP-compatible client using the configuration below.
{
"mcpServers": {
"atxp": {
"url": "https://atxp-mcp-production.up.railway.app/mcp/free",
"transport": "http"
}
}
}Search the web
Generate AI images (512–1792px)
Send email from agent address
Check agent email inbox
Generate AI music from text
The ATXP Agent Tool Library is an MCP server that provides five AI-powered agent tools — web search, image generation, email send, email inbox, and music generation — using USDC micropayments on Base mainnet.
Add the provided HTTP endpoint to your MCP client configuration. Use the free endpoint for three free web searches per day, or the pro endpoint for pay-per-use access to all tools. Alternatively, clone the repository and run with your ATXP connection token for self-hosting.
Only the web search tool is free, limited to 3 calls per day. All other tools require pay-per-use.
Payments are per-call via x402 micropayments in USDC on Base mainnet. No subscription, API key, or account is required.
Yes, clone the repository, run `npm install`, set the `ATXP_CONNECTION_TOKEN` environment variable, and start the server in stdio or HTTP mode.
The provided endpoints use HTTP transport. When self-hosting, you can run in stdio mode (for Claude Desktop) or HTTP mode (for remote deployment).
Web search: $0.01/call; image generate: $0.05–$0.15/call; email send: $0.01/call; email inbox: $0.01/call; music generate: $0.15/call

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