Payment is authentication

HTTP 402 Tollbooths for the Agent Web. Zero API Keys. Zero Subscriptions. Paid in Sats.

Put an API behind Satgate or give your agent a wallet. Every request negotiates its own price with Lightning L402 and Cashu.

Publish an API Try the live 402

One-click MCP setup

Give your agent a wallet

{
  "mcpServers": {
    "satgate": {
      "command": "npx",
      "args": ["-y", "@tollgate/mcp"],
      "env": { "TOLLGATE_GATEWAY_URL": "https://satgate.dev" }
    }
  }
}

Live mainnet: Satgate never mints unbacked demo tokens.Top up with Lightning

Live protocol inspector

See the 402. Pay it. Get the result.

● SATGATE HTTP INSPECTOR / satgate.dev

Showcase API

Request path

JSON body

Optional cashuB token

Raw response

$ Ready. Send an unpaid request to inspect the dual-protocol challenge.