Roundhouse

api.powahub.ai

No description published for this endpoint.

DataLiveeip155:8453Exactvia wellknown:api.powahub.ai
https://api.powahub.ai/CertainData/fx-rate/fx/{base}/{quote}
Settlements · 30d
17↑ 250%
No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days.
$0.15
Verified settled volume
17 settlements proven x402 by their on-chain EIP-3009 marker.
$0.0070
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
Never called
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x9A4fb84633C690e422c33491D1FCC319849E6BB0

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": "0x9A4fb84633C690e422c33491D1FCC319849E6BB0",
      "amount": "7000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://api.powahub.ai/CertainData/fx-rate/fx/%7Bbase%7D/%7Bquote%7D",
    "tags": [
      "Fx",
      "Rate",
      "Quote",
      "Exchange Rate"
    ],
    "iconUrl": "https://powahub.ai/brand/powahub-icon-512.png",
    "mimeType": "application/json",
    "description": "Mid-market reference rate for a base/quote currency pair, from the European Central Bank.",
    "serviceName": "PowaHub"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "pathParams": {
            "base": "string",
            "quote": "string"
          },
          "queryParams": {
            "date": "string"
          }
        },
        "output": {
          "type": "json",
          "example": {}
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "pathParams"
            ],
            "properties": {
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "GET",
                  "HEAD",
                  "DELETE"
                ],
                "type": "string"
              },
              "pathParams": {
                "type": "object",
                "required": [
                  "base",
                  "quote"
                ],
                "properties": {
                  "base": {
                    "type": "string",
                    "description": "Base currency as a 3-letter ISO code, e.g. EUR."
                  },
                  "quote": {
                    "type": "string",
                    "description": "Quote currency as a 3-letter ISO code, e.g. USD."
                  }
                }
              },
              "queryParams": {
                "type": "object",
                "properties": {
                  "date": {
                    "type": "string",
                    "description": "Optional. A specific date (YYYY-MM-DD) for a historical rate, e.g. 2026-01-01. Omit for the latest."
                  }
                }
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object"
              }
            }
          }
        }
      },
      "routeTemplate": "/CertainData/fx-rate/fx/:base/:quote"
    }
  },
  "x402Version": 2
}

Accepts

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

0.007USDC≈ $0.007 USD
on Base · exact scheme

Pay 0.007 USDC on Base to 0x9A4f…E6BB0. The signed payment is good for 5 minutes.

Paid to
0x9A4f…E6BB0
USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
7000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x9A4fb84633C690e422c33491D1FCC319849E6BB0",
    "amount": "7000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Provenance

Seen in the source catalog
—
Last indexed by Roundhouse
2026-09-18 04:15Z
Last enriched (probe, favicon, geo)
2026-09-18 20:15Z
x402 version
2
Max timeout
300s
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 api.powahub.ai 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=api.powahub.ai'
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://api.powahub.ai/CertainData/fx-rate/fx/{base}/{quote}, 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.