api.rqm-relay.com
Find APIs and MCP servers for your task. Free discovery, direct connections, and supported purchases with a disclosed Relay fee.
SearchLiveeip155:8453Exactvia cdp
Calls · 30d
1→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 3 snapshots so far.
$24.13
Verified settled volume
484 settlements proven x402 by their on-chain EIP-3009 marker.
$0.012
Listed price
As published in the catalog. Always read the live 402 before paying.
1
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-09-11 04:15Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x8F43274b121663b18a0246E9908bac8eAC866C12The 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.
0.012USDC≈ $0.012 USD
on Base · exact scheme
Pay 0.012 USDC on Base to 0x8F43…66C12. The signed payment is good for 5 minutes.
- Paid to
- 0x8F43…66C12
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 12000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x8F43274b121663b18a0246E9908bac8eAC866C12",
"amount": "12000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"input": {
"frames": [
{
"frame_id": "base",
"rotation": {
"kind": "quaternion",
"order": "wxyz",
"values": [
1,
0,
0,
0
]
},
"handedness": "right",
"translation": {
"unit": "m",
"values": [
0,
0,
0
]
},
"axis_convention": "FLU",
"parent_frame_id": null,
"rotation_semantics": "active",
"transform_direction": "parent_to_child"
},
{
"frame_id": "tool",
"rotation": {
"kind": "matrix",
"values": [
[
1,
0,
0
],
[
0,
1,
0
],
[
0,
0,
1
]
]
},
"handedness": "right",
"translation": {
"unit": "m",
"values": [
0.4,
0,
0.7
]
},
"axis_convention": "FLU",
"parent_frame_id": "base",
"rotation_semantics": "active",
"transform_direction": "parent_to_child"
}
],
"tolerances": {
"quaternion_norm": 0.000001,
"matrix_determinant": 1e-8,
"matrix_orthogonality": 1e-8
},
"schema_version": "rqm.robotics.frame-convention-validation-request.v1",
"declared_handedness": "right",
"declared_length_unit": "m",
"declared_axis_convention": "FLU",
"declared_rotation_semantics": "active",
"declared_transform_direction": "parent_to_child"
},
"quoteId": "40d225e3-4a42-43cf-8adb-78d6d3efa819",
"idempotencyKey": "replace-with-unique-purchase-key"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"jobId": "example-job",
"status": "queued",
"resultAccessToken": "example-only",
"resultAccessExpiresAt": "2099-01-01T00:00:00Z"
}
}
},
"schema": {
"type": "object",
"$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": "FrameConventionValidationRequest",
"required": [
"frames",
"declared_length_unit",
"declared_transform_direction",
"declared_rotation_semantics",
"declared_handedness",
"declared_axis_convention"
],
"properties": {
"frames": {
"type": "array",
"items": {
"type": "object",
"title": "CoordinateFrame",
"required": [
"frame_id",
"translation",
"rotation",
"transform_direction",
"rotation_semantics",
"handedness",
"axis_convention"
],
"properties": {
"frame_id": {
"type": "string",
"title": "Frame Id",
"pattern": "^[A-Za-z][A-Za-z0-9_.:-]{0,63}$"
},
"rotation": {
"oneOf": [
{
"type": "object",
"title": "QuaternionRotation",
"required": [
"values",
"order"
],
"properties": {
"kind": {
"type": "string",
"const": "quaternion",
"title": "Kind",
"default": "quaternion"
},
"order": {
"enum": [
"wxyz",
"xyzw"
],
"type": "string",
"title": "Order"
},
"values": {
"type": "array",
"title": "Values",
"maxItems": 4,
"minItems": 4,
"prefixItems": [
{
"type": "number"
},
{
"type": "number"
},
{
"type": "number"
},
{
"type": "number"
}
]
}
},
"additionalProperties": false
},
{
"type": "object",
"title": "MatrixRotation",
"required": [
"values"
],
"properties": {
"kind": {
"type": "string",
"const": "matrix",
"title": "Kind",
"default": "matrix"
},
"values": {
"type": "array",
"title": "Values",
"maxItems": 3,
"minItems": 3,
"prefixItems": [
{
"type": "array",
"maxItems": 3,
"minItems": 3,
"prefixItems": [
{
"type": "number"
},
{
"type": "number"
},
{
"type": "number"
}
]
},
{
"type": "array",
"maxItems": 3,
"minItems": 3,
"prefixItems": [
{
"type": "number"
},
{
"type": "number"
},
{
"type": "number"
}
]
},
{
"type": "array",
"maxItems": 3,
"minItems": 3,
"prefixItems": [
{
"type": "number"
},
{
"type": "number"
},
{
"type": "number"
}
]
}
]
}
},
"additionalProperties": false
}
],
"title": "Rotation",
"discriminator": {
"mapping": {
"matrix": "#/$defs/MatrixRotation",
"quaternion": "#/$defs/QuaternionRotation"
},
"propertyName": "kind"
}
},
"handedness": {
"enum": [
"right",
"left"
],
"type": "string",
"title": "Handedness"
},
"translation": {
"type": "object",
"title": "Translation",
"required": [
"values",
"unit"
],
"properties": {
"unit": {
"enum": [
"m",
"cm",
"mm"
],
"type": "string",
"title": "Unit"
},
"values": {
"type": "array",
"title": "Values",
"maxItems": 3,
"minItems": 3,
"prefixItems": [
{
"type": "number"
},
{
"type": "number"
},
{
"type": "number"
}
]
}
},
"additionalProperties": false
},
"axis_convention": {
"enum": [
"ENU",
"NED",
"NWU",
"FLU",
"FRD"
],
"type": "string",
"title": "Axis Convention"
},
"parent_frame_id": {
"anyOf": [
{
"type": "string",
"pattern": "^[A-Za-z][A-Za-z0-9_.:-]{0,63}$"
},
{
"type": "null"
}
],
"title": "Parent Frame Id",
"default": null
},
"rotation_semantics": {
"enum": [
"active",
"passive"
],
"type": "string",
"title": "Rotation Semantics"
},
"transform_direction": {
"enum": [
"parent_to_child",
"child_to_parent"
],
"type": "string",
"title": "Transform Direction"
}
},
"additionalProperties": false
},
"title": "Frames",
"maxItems": 64,
"minItems": 1
},
"tolerances": {
"type": "object",
"title": "Tolerances",
"properties": {
"quaternion_norm": {
"type": "number",
"title": "Quaternion Norm",
"default": 0.000001,
"maximum": 0.01,
"minimum": 1e-12
},
"matrix_determinant": {
"type": "number",
"title": "Matrix Determinant",
"default": 1e-8,
"maximum": 0.01,
"minimum": 1e-12
},
"matrix_orthogonality": {
"type": "number",
"title": "Matrix Orthogonality",
"default": 1e-8,
"maximum": 0.01,
"minimum": 1e-12
}
},
"additionalProperties": false
},
"schema_version": {
"type": "string",
"const": "rqm.robotics.frame-convention-validation-request.v1",
"title": "Schema Version",
"default": "rqm.robotics.frame-convention-validation-request.v1"
},
"declared_handedness": {
"enum": [
"right",
"left"
],
"type": "string",
"title": "Declared Handedness"
},
"declared_length_unit": {
"enum": [
"m",
"cm",
"mm"
],
"type": "string",
"title": "Declared Length Unit"
},
"declared_axis_convention": {
"enum": [
"ENU",
"NED",
"NWU",
"FLU",
"FRD"
],
"type": "string",
"title": "Declared Axis Convention"
},
"declared_rotation_semantics": {
"enum": [
"active",
"passive"
],
"type": "string",
"title": "Declared Rotation Semantics"
},
"declared_transform_direction": {
"enum": [
"parent_to_child",
"child_to_parent"
],
"type": "string",
"title": "Declared Transform Direction"
}
},
"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 04:15Z
- Last indexed by Roundhouse
- 2026-09-11 19:01Z
- Last enriched (probe, favicon, geo)
- 2026-09-25 16:45Z
- x402 version
- 2
- Max timeout
- 300s
- Liveness probe
- HTTP 404
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.
Show the promptHide 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/frame-convention-validation-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.