What is an L402 or x402 API?
L402 uses Bitcoin Lightning for payments; x402 uses USDC on Base. Satring supports

@toadlyBroodle
Basic information
The best curated L402 + x402 API directory. Find, rate, and connect to paid APIs via Lightning (L402) or USDC on Base (x402). Discover 200+ reviewed, verified, paid, and live services, curated and tested via https://satring.com
Add this server to your MCP-compatible client using the configuration below.
{
"mcpServers": {
"satring": {
"command": "satring-mcp"
}
}
}Tool list not available yet
This listing does not currently have a tool list to display. This does not mean the server has no tools; check its documentation for supported capabilities.
We auto-extract tools from the README. The maintainer can list them under a ## Tools heading to populate this section.
Satring is a curated directory of paid APIs that accept payments via the L402 protocol (Bitcoin Lightning) or the x402 protocol (USDC on Base). It helps AI agents and developers discover, rate, and connect to paid API services.
Clone the repository, create a Python virtual environment, install dependencies, copy .env.example to .env and configure wallet keys (or leave defaults for test mode), then run uvicorn app.main:app --reload. In test mode (AUTH_ROOT_KEY=test-mode), all payment gates are bypassed. For AI agents, install the satring-mcp package via pip or pipx and add it to your MCP client configuration.
L402 uses Bitcoin Lightning for payments; x402 uses USDC on Base. Satring supports
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