Which x402 API should my agent call?
Which x402 API should my agent call? Live API finder for any task. Required: task. Returns up to 5 paid APIs that answered a fresh unpaid probe with a valid Base USDC 402, ranked by task fit, price and Bazaar-reported repeat buyers, each with live price, network and a ready-to-call request. Provider calls are paid separately. No live match, no charge. $0.005 USDC on Base. No account, no API key. Recommendations, not a safety guarantee. By Ontario Protocol.
Answeringour last check, 2026-10-25
1 of 1checks answered this week
765 msmedian answer time
$0.005listed price per call
$0.005price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://ontarioprotocol.com/api/x402/find-api
| Category | Market data |
|---|---|
| Provider host | ontarioprotocol.com |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 0 from 0 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-25 | valid payment request | 402 | $0.005 | 765 ms |
Example input (from the provider)
{
"body": {
"limit": 3,
"max_usdc": "0.01",
"task": "web search for an AI agent"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"properties": {
"input": {
"properties": {
"body": {
"properties": {
"limit": {
"default": 3,
"maximum": 5,
"minimum": 1,
"type": "integer"
},
"max_usdc": {
"description": "Optional per-call USDC price ceiling for returned APIs.",
"type": "string"
},
"task": {
"description": "Public task text; never credentials or private data.",
"maxLength": 160,
"minLength": 3,
"type": "string"
}
},
"required": [
"task"
],
"type": "object"
}
},
"required": [
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"additionalProperties": true,
"type": "object"
}
},
"required": [
"example"
],
"type": "object"
}
},
"required": [
"input",
"output"
],
"type": "object"
}