Roundhouse AI

x402.coinopai.com

Auditable market context with calibrated crypto forecast ranges, risk state, decision journaling, and post-decision audit via x402 micropayments on Base.

TradingLiveeip155:8453Exactvia cdp
https://x402.coinopai.com/api/calibration
Settlements · 30d
23→ 0%
No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days.
$38.63
Verified settled volume
759 settlements proven x402 by their on-chain EIP-3009 marker.
$0.050
Listed price
As published in the catalog. Always read the live 402 before paying.
18
Calls · 30d
Upstream's own call count for this endpoint, not ours.
2
Unique payers · 30d
Last called 2026-07-04 05:17Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x1304EC1A8945365e43A5c18a734065f107B417cA

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.

Live 402 challenge

Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.

{
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x1304EC1A8945365e43A5c18a734065f107B417cA",
      "scheme": "exact",
      "network": "base",
      "mimeType": "application/json",
      "resource": "https://x402.coinopai.com/api/calibration",
      "description": "Returns a calibrated_confidence score with confidence_band and historical_hit_rate for a submitted raw_confidence — use it to convert a model's raw confidence into a probability grounded in past accuracy. Use it to sanity-check an agent's raw confidence before logging a decision, get an empirically grounded probability instead of a guess, or grade calibration quality by sample depth and hit rate. Market intelligence only.",
      "maxAmountRequired": "50000",
      "maxTimeoutSeconds": 1800
    }
  ],
  "x402Version": 1
}

Accepts

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

0.05USDC≈ $0.05 USD
on Base · exact scheme

Pay 0.05 USDC on Base to 0x1304…417cA. The signed payment is good for 30 minutes.

Paid to
0x1304…417cA
USD Coin contract
0x8335…02913
Payment window
30 minutes
As published
50000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x1304EC1A8945365e43A5c18a734065f107B417cA",
    "amount": "50000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 1800
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "symbol": "BTC",
          "horizon": "1h",
          "raw_confidence": 72,
          "directional_bias": "upward"
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "disclaimer": "Market intelligence only. Not financial advice. Not a market activity instruction.",
          "sample_size": 18,
          "generated_for": "research_and_decision_support",
          "raw_confidence": 72,
          "compliance_mode": "market_intelligence_only",
          "confidence_band": {
            "low": 51,
            "mid": 63,
            "high": 75
          },
          "directional_bias": "upward",
          "calibration_grade": "fair",
          "historical_hit_rate": 58.3,
          "calibrated_confidence": 63,
          "calibration_data_status": "current",
          "response_schema_version": "2026-06-23.market_intelligence.v1",
          "calibration_data_age_minutes": 14.2
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method",
            "bodyType",
            "body"
          ],
          "properties": {
            "body": {
              "required": [
                "symbol",
                "raw_confidence",
                "horizon",
                "directional_bias"
              ],
              "properties": {
                "symbol": {
                  "type": "string"
                },
                "horizon": {
                  "type": "string"
                },
                "signal_type": {
                  "type": "string",
                  "deprecated": true,
                  "description": "Legacy directional-context alias; compatibility only, not asset class."
                },
                "raw_confidence": {
                  "type": "number"
                },
                "directional_bias": {
                  "enum": [
                    "upward",
                    "downward",
                    "neutral"
                  ],
                  "type": "string"
                }
              }
            },
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "POST"
              ],
              "type": "string"
            },
            "bodyType": {
              "enum": [
                "json",
                "form-data",
                "text"
              ],
              "type": "string"
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object",
              "properties": {
                "disclaimer": {
                  "type": "string"
                },
                "sample_size": {
                  "type": "number"
                },
                "generated_for": {
                  "type": "string"
                },
                "raw_confidence": {
                  "type": "number"
                },
                "compliance_mode": {
                  "type": "string"
                },
                "confidence_band": {
                  "type": "object"
                },
                "directional_bias": {
                  "type": "string"
                },
                "calibration_grade": {
                  "type": "string"
                },
                "historical_hit_rate": {
                  "type": "number"
                },
                "liability_disclaimer": {
                  "type": "object"
                },
                "calibrated_confidence": {
                  "type": "number"
                },
                "calibration_data_status": {
                  "type": "string"
                },
                "response_schema_version": {
                  "type": "string"
                },
                "calibration_data_age_minutes": {
                  "type": "number"
                }
              }
            }
          }
        }
      }
    }
  },
  "offer-receipt": {
    "info": {
      "offers": [
        {
          "format": "eip712",
          "payload": {
            "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
            "payTo": "0x1304EC1A8945365e43A5c18a734065f107B417cA",
            "amount": "50000",
            "scheme": "exact",
            "network": "eip155:8453",
            "version": 1,
            "validUntil": 1783142578,
            "resourceUrl": "https://x402.coinopai.com/api/calibration"
          },
          "signature": "0xdfaa2aa38be61a9b09de2b52f91b9a53427aa2d6e0acfd1e47afcc56c5789a504aa47de0b275192a5a93ffeda896552fc559ba4cb676ad35e1e5f9290e7480941b",
          "acceptIndex": 0
        }
      ]
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "offers"
      ],
      "properties": {
        "offers": {
          "type": "array",
          "items": {
            "type": "object",
            "required": [
              "format",
              "signature"
            ],
            "properties": {
              "format": {
                "type": "string"
              },
              "payload": {
                "type": "object",
                "required": [
                  "version",
                  "resourceUrl",
                  "scheme",
                  "network",
                  "asset",
                  "payTo",
                  "amount"
                ],
                "properties": {
                  "asset": {
                    "type": "string"
                  },
                  "payTo": {
                    "type": "string"
                  },
                  "amount": {
                    "type": "string"
                  },
                  "scheme": {
                    "type": "string"
                  },
                  "network": {
                    "type": "string"
                  },
                  "version": {
                    "type": "integer"
                  },
                  "validUntil": {
                    "type": "integer"
                  },
                  "resourceUrl": {
                    "type": "string"
                  }
                }
              },
              "signature": {
                "type": "string"
              },
              "acceptIndex": {
                "type": "integer"
              }
            }
          }
        }
      }
    }
  },
  "payment-identifier": {
    "info": {
      "required": false
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "required"
      ],
      "properties": {
        "id": {
          "type": "string",
          "pattern": "^[a-zA-Z0-9_-]+$",
          "maxLength": 128,
          "minLength": 16
        },
        "required": {
          "type": "boolean"
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-07-04 05:17Z
Last indexed by Roundhouse
2026-07-16 20:50Z
Last enriched (probe, favicon, geo)
2026-09-11 01:45Z
x402 version
2
Max timeout
1800s
Liveness probe
HTTP 402
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 x402.coinopai.com 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=x402.coinopai.com'
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://x402.coinopai.com/api/calibration, 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. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402,
or use an organization key from https://roundhouseai.io/dashboard/team.

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