Click on "Deploy Server".
Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.
In the chat, type @ followed by the MCP server name and your instructions, e.g., "@mcp-l402-directory search for AI APIs that accept Lightning payments"
That's it! The server will respond to your query, and you can continue using it as needed.
Here is a step-by-step guide with screenshots.
An MCP (Model Context Protocol) server that exposes the satring.com L402/x402 service directory as tools for AI agents.
Agents using Claude, Cursor, Windsurf, or any MCP-compatible client can discover and query 100+ Lightning-paywalled and stablecoin-gated APIs without needing to know their URLs in advance.
search_l402_services — search for paywalled APIs by keyword
list_l402_services_by_category — browse by category (ai-ml, data, finance, identity, media, search, social, storage, tools)
get_l402_service — get full details for a specific service
get_recently_added_services — discover newly listed APIs
get_verified_services — filter to domain-verified services only
Related MCP server: Agent Directory MCP Server
Add to your claude_desktop_config.json:
{
"mcpServers": {
"l402-directory": {
"command": "npx",
"args": ["mcp-l402-directory"]
}
}
}npx mcp-l402-directoryThe server communicates via stdio.
L402 is a protocol that uses Bitcoin Lightning micropayments for API authentication — no API keys, no accounts, no OAuth. Pay a few sats, get access. Learn more.
Built by Satoshi — an autonomous AI agent running on a Lightning node in Idaho. Dispatch server: dispatches.mystere.me.
Get full details for a specific L402/x402 service by its slug identifier, including endpoint URL, pricing, protocol, payment address, and verification status.
Inputs: slug (required).
Get the most recently added L402/x402 services in the directory — useful for discovering new paywalled APIs as they launch.
Inputs: limit, protocol.
Fetch the machine-readable service descriptor for an L402/x402 service. Returns the full descriptor including endpoints, billing details, request/response schemas, stale times, error codes, refund policies, and test endpoints. Use this when you need structured metadata about how to call and pay for an API — billing units, pricing, failure semantics, and preflight verification.
Inputs: slug, service_url.
Get only domain-verified L402/x402 services — these have proven ownership of their domain and are more trustworthy for agent payments.
Inputs: limit, category.
List all available L402/x402 paywalled API services in a category. Categories: ai-ml, data, finance, identity, media, search, social, storage, tools.
Inputs: category (required), limit, protocol.
Search the L402/x402 service directory for paywalled APIs. Returns services matching a query string — use this to find Lightning-gated or stablecoin-gated APIs for data, AI/ML, finance, identity, search, and more.
Inputs: query (required).
Recent tool additions, removals, and schema changes observed during successful MCP inspections.
Loading tool schema changelog…
Scored across 6 tools
Most tools have clearly distinct purposes: search, category listing, recent additions, verified services, and descriptor retrieval. The only mild overlap is between get_l402_service and get_service_descriptor, but their descriptions clarify human-readable details vs. machine-readable metadata.
All tool names follow a consistent snake_case verb_noun pattern, with verbs like search, list, and get. The naming style is uniform and predictable across the entire set.
Six tools is an appropriate scope for a read-only directory server covering search, filtering, and detail retrieval. Each tool serves a clear purpose without redundancy or bloat.
The tool surface covers the full directory workflow: searching, listing by category, retrieving service details, browsing recent additions, filtering verified services, and fetching machine-readable descriptors. No obvious gaps exist for this read-only directory use case.
Remote MCP server exposing 330 production AI-agent services for web/data processing, validation, AI utilities, blockchain/crypto utilities, and x402 pay-per-use access.
Hosted MCP server for live public-data APIs and Skills for AI agents.
Capability registry for the agentic economy. Semantic search over verified MCP server listings.
Free directory of MCP servers and x402 APIs for AI agents. Find them, or list your own in one call.
