do $0.02 per call

One endpoint for everything (OpenRouter-style): describe what you need and pass the input; Toll402 picks the best tool from the whole catalog (built-in, community-forged, external x402 services) and runs it. Tools priced above maxPriceUsd are returned as a match instead of executed.

For AI agents: call do
POST https://toll402.dev/v1/do
{
 "need": "convert 100 US dollars to Mexican pesos",
 "input": {
  "base": "USD",
  "quote": "MXN",
  "amount": 100
 }
}
Answers 402 with x402 payment requirements; pay with any x402 client (@x402/fetch, x402 for Python, toll402-client, toll402-mcp) or send a prepaid-credits key as x-toll402-key (https://toll402.dev/credits). Paid per call via x402 (USDC on Base) or with a prepaid-credits key (x-toll402-key, card at /credits); charged only on success. Start at /llms.txt or connect the MCP server: npx -y toll402-mcp · remote https://toll402.dev/mcp.

Input schema

{
 "type": "object",
 "properties": {
  "need": {
   "type": "string",
   "description": "What you need, in plain language",
   "minLength": 3,
   "maxLength": 500
  },
  "input": {
   "type": "object",
   "additionalProperties": true,
   "description": "Input for the chosen tool (must match its schema)"
  },
  "maxPriceUsd": {
   "type": "number",
   "minimum": 0,
   "maximum": 1,
   "default": 0.01,
   "description": "Do not execute tools priced above this; return the match instead"
  },
  "tool": {
   "type": "string",
   "description": "Force a specific tool id (skip routing)"
  }
 },
 "required": [
  "need",
  "input"
 ],
 "additionalProperties": false
}

Example output

{
 "executed": true,
 "tool": {
  "name": "fx_rate",
  "price": "$0.001"
 },
 "result": {
  "converted": 1842
 }
}

MCP

{"mcpServers":{"toll402":{"command":"npx","args":["-y","toll402-mcp"],"env":{"TOLL402_WALLET_KEY":"0x..."}}}}

All tools · OpenAPI