Ontario Protocol

Name: Ontario Protocol
Price: 0.005 USDC

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.

SearchUnknowneip155:8453Exactvia cdp

https://ontarioprotocol.com/api/x402/find-api

Which api should i callFind paid apix402 api searchRecommend x402 serviceTool selection

Settlements · 30d

No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days.

$10.33

Verified settled volume

33 settlements proven x402 by their on-chain EIP-3009 marker.

$0.0050

Listed price

As published in the catalog. Always read the live 402 before paying.

Calls · 30d

Upstream's own call count for this endpoint, not ours.

Unique payers · 30d

Last called 2026-10-25 19:50Z

—

Upstream on-chain volume

Reported by the source catalog.

Paid to

0xa2d72aBF2C5e939fdDCA4156B74dE482e03CA3ec

The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.

Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Provider

The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.

Accepts

The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.

0.005USDC≈ $0.005 USD

on Base · exact scheme

Pay 0.005 USDC on Base to 0xa2d7…CA3ec. The signed payment is good for 5 minutes.

Paid to: 0xa2d7…CA3ec
USD Coin contract: 0x8335…02913
Payment window: 5 minutes
As published: 5000 smallest units

The catalog’s raw entry

[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2",
      "quote_id": "44037f97fc814c6182388fa5a6d3a645",
      "resourceUrl": "https://ontarioprotocol.com/api/x402/find-api",
      "quote_expires_at": 1792958125
    },
    "payTo": "0xa2d72aBF2C5e939fdDCA4156B74dE482e03CA3ec",
    "amount": "5000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "task": "web search for an AI agent",
          "limit": 3,
          "max_usdc": "0.01"
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "example": {
          "task": "web search for an AI agent",
          "count": 1,
          "funnel": {
            "live": 1,
            "probed": 4,
            "ranked": 7,
            "skipped": {
              "write_route": 1,
              "host_probe_cap": 3,
              "opted_out_host": 0,
              "endpoint_template": 2,
              "ontario_first_party": 0
            },
            "discarded": {
              "unreachable": 1,
              "no_payment_challenge": 2
            },
            "marketplace_candidates": 12
          },
          "method": "Candidates come from Ontario's copy of the Coinbase CDP Bazaar catalog (Base USDC listings settled in the last 30 days; index_as_of gives its age). When that copy is missing, older than 12 hours or has too few matches, live Coinbase CDP Bazaar, Agentic Market and Ontario ready-catalog searches are used. Candidates are ranked by task fit, price and repeat buyers (calls beyond unique payers), then probed unpaid: at most 2 per host, 3 s connect and read timeouts, observations reused up to 10 minutes. Write and money-moving routes and hosts that opted out are skipped, not probed. Only valid Base USDC x402 challenges within budget are returned. Ontario's own paid routes are excluded.",
          "schema": "ontario.x402_api_finder.v1",
          "status": "ok",
          "filters": {
            "asset": "USDC",
            "limit": 3,
            "network": "eip155:8453",
            "max_usdc": "0.01"
          },
          "results": [
            {
              "rank": 1,
              "method": "POST",
              "endpoint": "https://search.example.com/v1/web/search",
              "live_check": {
                "cached": false,
                "pay_to": "0x1234567890AbcdEF1234567890aBcdef12345678",
                "status": "live_matches_listing",
                "network": "eip155:8453",
                "checked_at": "2026-10-25T09:14:03Z",
                "latency_ms": 312,
                "http_status": 402,
                "price_drift": "0",
                "x402_version": 2,
                "live_price_usdc": "0.005",
                "listed_price_usdc": "0.005",
                "payto_matches_listing": true
              },
              "price_usdc": "0.005",
              "rank_score": 118.787,
              "description": "Live web search for AI agents: ranked results with title, URL, snippet, publish date and source, with automatic provider failover.",
              "how_to_call": {
                "url": "https://search.example.com/v1/web/search",
                "json": {
                  "query": "x402 facilitator fees",
                  "max_results": 5
                },
                "method": "POST",
                "payment": {
                  "flow": "x402 exact: an unpaid request returns PAYMENT-REQUIRED; the retry carries the signed accepts entry in PAYMENT-SIGNATURE.",
                  "asset": "USDC",
                  "pay_to": "0x1234567890AbcdEF1234567890aBcdef12345678",
                  "scheme": "exact",
                  "network": "eip155:8453",
                  "amount_usdc": "0.005"
                }
              },
              "buyer_signal": {
                "basis": "Source-reported 30-day marketplace counters; payers are wallets, not verified customers.",
                "label": "repeat_buyers",
                "score": 22.878,
                "calls_30d": 602,
                "payers_30d": 11,
                "calls_per_payer": 54.73
              },
              "service_name": "search.example.com",
              "task_relevance": 1,
              "source_marketplaces": [
                "Agentic Market",
                "Coinbase CDP Bazaar"
              ]
            }
          ],
          "index_as_of": "2026-10-25T06:00:04Z",
          "index_status": "ok",
          "ranking_method": "deterministic",
          "trust_boundary": "A live challenge shows the endpoint is up and payable now. It does not prove the paid response is correct, safe or fit for the task. Marketplace counters are source-reported. Provider calls are paid separately, under the caller's own spend policy.",
          "candidate_source": "finder_index"
        }
      }
    },
    "schema": {
      "type": "object",
      "required": [
        "input",
        "output"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "body"
          ],
          "properties": {
            "body": {
              "type": "object",
              "required": [
                "task"
              ],
              "properties": {
                "task": {
                  "type": "string",
                  "maxLength": 160,
                  "minLength": 3,
                  "description": "Public task text; never credentials or private data."
                },
                "limit": {
                  "type": "integer",
                  "default": 3,
                  "maximum": 5,
                  "minimum": 1
                },
                "max_usdc": {
                  "type": "string",
                  "description": "Optional per-call USDC price ceiling for returned APIs."
                }
              }
            }
          }
        },
        "output": {
          "type": "object",
          "required": [
            "example"
          ],
          "properties": {
            "example": {
              "type": "object",
              "additionalProperties": true
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog: 2026-10-25 19:50Z
Last indexed by Roundhouse: 2026-10-26 22:40Z
Last enriched (probe, favicon, geo): —
x402 version: 2
Max timeout: 300s
Liveness probe: Not probed

Report

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/endpoints

No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days. Verified volume counts only settlements with an on-chain EIP-3009 marker.

Open skill.md

Show the prompt

Using Roundhouse, look up the x402 service Ontario Protocol and tell me whether it is
worth paying: what a call costs, whether the endpoint answered when last probed, and what
its payment record actually shows.

curl -s 'https://api.roundhouseai.io/v0/endpoints?q=Ontario%20Protocol'
curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>'

Then call it: read the price from the live 402 at https://ontarioprotocol.com/api/x402/find-api, never from
a cached figure, and pay with an x402 client.

The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except
/v0/unified* and /v0/endpoints. Either pay over x402 (mint a personal key for $0.01 at
GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at
https://roundhouseai.io/dashboard/connections. If you have neither, ask before going further.

If you do not have Roundhouse tools or skills installed, read
https://roundhouseai.io/skill.md first — it is the whole procedure.