api.rqm-relay.com

Find APIs and MCP servers for your task. Free discovery, direct connections, and supported purchases with a disclosed Relay fee.

OtherLiveeip155:8453Exactvia cdp
Calls · 30d
2
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 3 snapshots so far.
$24.12
Verified settled volume
483 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.
2
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-09-11 03:19Z
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x8F43274b121663b18a0246E9908bac8eAC866C12

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.

0.007USDC≈ $0.007 USD
on Base · exact scheme

Pay 0.007 USDC on Base to 0x8F43…66C12. The signed payment is good for 5 minutes.

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": "0x8F43274b121663b18a0246E9908bac8eAC866C12",
    "amount": "7000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "input": {
            "rules": [
              {
                "metric": "rms",
                "maximum": 1,
                "rule_id": "rms-limit",
                "channel_id": "signal"
              }
            ],
            "channels": [
              {
                "role": "signal",
                "samples": [
                  0,
                  1,
                  0,
                  -1,
                  0,
                  1,
                  0,
                  -1,
                  0,
                  1,
                  0,
                  -1,
                  0,
                  1,
                  0,
                  -1
                ],
                "channel_id": "signal"
              }
            ],
            "signal_kind": "scalar",
            "sample_rate_hz": 1024
          },
          "quoteId": "7b5f9055-5bc6-4a07-9db4-a821b72fdaa3",
          "idempotencyKey": "replace-with-unique-purchase-key"
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "jobId": "example-job",
          "status": "queued",
          "resultAccessToken": "example-only",
          "resultAccessExpiresAt": "2099-01-01T00:00:00Z"
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "bodyType",
            "body"
          ],
          "properties": {
            "body": {
              "type": "object",
              "required": [
                "quoteId",
                "input",
                "idempotencyKey"
              ],
              "properties": {
                "input": {
                  "type": "object",
                  "title": "GateSignalCaptureRequest",
                  "required": [
                    "sample_rate_hz",
                    "channels",
                    "rules"
                  ],
                  "properties": {
                    "rules": {
                      "type": "array",
                      "items": {
                        "type": "object",
                        "title": "SignalGateMetricRule",
                        "required": [
                          "rule_id",
                          "channel_id",
                          "metric"
                        ],
                        "properties": {
                          "metric": {
                            "enum": [
                              "sample_count",
                              "sample_rate_hz",
                              "duration_seconds",
                              "minimum",
                              "maximum",
                              "mean",
                              "rms",
                              "standard_deviation",
                              "peak_to_peak",
                              "frequency_resolution_hz",
                              "nyquist_frequency_hz",
                              "dominant_frequency_hz",
                              "dominant_amplitude"
                            ],
                            "type": "string",
                            "title": "Metric"
                          },
                          "maximum": {
                            "anyOf": [
                              {
                                "type": "number"
                              },
                              {
                                "type": "null"
                              }
                            ],
                            "title": "Maximum",
                            "default": null
                          },
                          "minimum": {
                            "anyOf": [
                              {
                                "type": "number"
                              },
                              {
                                "type": "null"
                              }
                            ],
                            "title": "Minimum",
                            "default": null
                          },
                          "rule_id": {
                            "type": "string",
                            "title": "Rule Id",
                            "pattern": "^[A-Za-z0-9._-]+$",
                            "maxLength": 64,
                            "minLength": 1
                          },
                          "channel_id": {
                            "type": "string",
                            "title": "Channel Id",
                            "maxLength": 64,
                            "minLength": 1
                          }
                        },
                        "additionalProperties": false
                      },
                      "title": "Rules",
                      "maxItems": 32,
                      "minItems": 1
                    },
                    "channels": {
                      "type": "array",
                      "items": {
                        "type": "object",
                        "title": "SignalChannelRequest",
                        "required": [
                          "channel_id",
                          "samples"
                        ],
                        "properties": {
                          "role": {
                            "enum": [
                              "signal",
                              "i",
                              "q"
                            ],
                            "type": "string",
                            "title": "Role",
                            "default": "signal"
                          },
                          "samples": {
                            "type": "array",
                            "items": {
                              "type": "number"
                            },
                            "title": "Samples",
                            "maxItems": 1024,
                            "minItems": 16
                          },
                          "channel_id": {
                            "type": "string",
                            "title": "Channel Id",
                            "pattern": "^[A-Za-z0-9._-]+$",
                            "maxLength": 64,
                            "minLength": 1
                          }
                        },
                        "additionalProperties": false
                      },
                      "title": "Channels",
                      "maxItems": 8,
                      "minItems": 1
                    },
                    "signal_kind": {
                      "enum": [
                        "scalar",
                        "multichannel",
                        "iq"
                      ],
                      "type": "string",
                      "title": "Signal Kind",
                      "default": "multichannel"
                    },
                    "sample_rate_hz": {
                      "type": "number",
                      "title": "Sample Rate Hz",
                      "maximum": 1000000000,
                      "exclusiveMinimum": 0
                    }
                  },
                  "additionalProperties": false
                },
                "quoteId": {
                  "type": "string",
                  "pattern": "^[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12}$",
                  "description": "Obtain a fresh quote from POST /v1/quote for this capability; never reuse an example quote."
                },
                "idempotencyKey": {
                  "type": "string",
                  "maxLength": 200,
                  "minLength": 8,
                  "description": "A unique key for a new purchase; retain it unchanged for every retry."
                }
              },
              "additionalProperties": false
            },
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "POST",
                "PUT",
                "PATCH"
              ],
              "type": "string"
            },
            "bodyType": {
              "enum": [
                "json",
                "form-data",
                "text"
              ],
              "type": "string"
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object",
              "required": [
                "jobId",
                "status",
                "resultAccessToken",
                "resultAccessExpiresAt"
              ],
              "properties": {
                "jobId": {
                  "type": "string"
                },
                "status": {
                  "type": "string"
                },
                "resultAccessToken": {
                  "type": "string"
                },
                "resultAccessExpiresAt": {
                  "type": "string"
                }
              }
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-09-11 03:19Z
Last indexed by Roundhouse
2026-09-11 19:01Z
Last enriched (probe, favicon, geo)
2026-09-11 03:15Z
x402 version
2
Max timeout
300s
Liveness probe
HTTP 404
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

This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 3 snapshots so far. 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.rqm-relay.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=api.rqm-relay.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://api.rqm-relay.com/v1/capabilities/gate-signal-capture-v1/run, 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.