Satring
@toadlyBroodle
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
Overview
What is Satring?
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.
How to use Satring?
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.
Key features of Satring
- Browse, search, and filter paid APIs by category, status, and protocol
- Dual-protocol payments: L402 (Bitcoin Lightning) and x402 (USDC on Base)
- Submit services with payment-gated anti-spam
- Ratings and reputation system with payment-gated reviews
- Edit listings with secure edit tokens and domain-based recovery
- JSON API for programmatic access and agent queries
- Health probing with automatic protocol detection for uptime and latency
Use cases of Satring
- AI agents autonomously discover and pay for APIs using Lightning or USDC
- Developers find and evaluate paid APIs by category, status, protocol, and reputation
- API providers submit their services and manage listings via edit tokens
- Users retrieve directory analytics, bulk exports, and per-service health metrics
FAQ from Satring
What is an L402 or x402 API?
L402 uses Bitcoin Lightning for payments; x402 uses USDC on Base. Satring supports
