x402.fuchss.app
Trust, reputation & reliability scores for x402 endpoints. We monitor every listed x402 service 24/7: uptime probes, 402-envelope compliance, price history, and real on-chain USDC settlement volume. Free grade & recommendation for any endpoint, $0.005 for a full data breakdown.
TradingLiveeip155:8453Exactvia cdp
x402TrustReliabilityMonitoringUptime
Calls · 30d
2→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 21 snapshots so far.
$6.37
Verified settled volume
194 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.
2
Calls · 30d
Upstream's own call count for this endpoint, not ours.
2
Unique payers · 30d
Last called 2026-09-09 14:27Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0xbBECBE90F28632a9d52ed67b33b43767b8c89285The 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": "0xbBECBE90F28632a9d52ed67b33b43767b8c89285",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"outputSchema": {
"input": {
"type": "http",
"method": "POST",
"bodyType": "json",
"bodyFields": {
"limit": {
"type": "number",
"required": false,
"description": "Max alternatives to return (1-25, default 5)."
},
"resource": {
"type": "string",
"required": true,
"description": "Full x402 resource URL to find better alternatives for (must be in our observation set)."
},
"minScoreDelta": {
"type": "number",
"required": false,
"description": "Minimum trust-score advantage an alternative must have over the subject (default 5)."
}
},
"headerFields": {
"PAYMENT-SIGNATURE": {
"type": "string",
"required": true,
"description": "Base64-encoded JSON PaymentPayload; auto-filled by x402 clients."
}
}
},
"output": {
"count": "number",
"subject": "object",
"resource": "string",
"alternatives": "array"
}
},
"maxTimeoutSeconds": 120
}
],
"resource": {
"url": "https://x402-trust.com/v1/similar",
"tags": [
"x402",
"trust",
"reliability",
"monitoring",
"uptime",
"agents"
],
"iconUrl": "https://x402-trust.com/favicon.svg",
"mimeType": "application/json",
"description": "Find better alternatives to an x402 endpoint. Given a resource URL, returns the top semantically-similar endpoints (matched on advertised purpose via description embeddings) that currently OUT-SCORE it on our deterministic trust score — so an agent about to pay a mediocre endpoint can discover a more reliable, better-settled one serving the same function. Each result carries its trust score, grade, cosine similarity, advertised price and free endpoint-page URL. The price fields stay machine-readable: amountUsd is always the raw advertised amount, and the separate boolean priceCeiling is true when the endpoint uses the x402 'upto' scheme, i.e. amountUsd is an authorization ceiling and the real charge is typically lower. Same-host siblings and 'avoid'-flagged endpoints are excluded. Returns an empty list (still a valid answer) when nothing beats the subject.",
"providerUrl": "https://x402-trust.com",
"serviceName": "x402 Trust: trust & reliability data for x402 endpoints"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"limit": 5,
"resource": "https://api.example.com/v1/thing"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"note": "Semantically similar endpoints that out-score the subject. Similarity is cosine over description embeddings.",
"count": 2,
"subject": {
"grade": "C",
"score": 61.2,
"vectorized": true,
"inObservationSet": true
},
"resource": "https://api.example.com/v1/thing",
"alternatives": [
{
"grade": "A",
"score": 88.1,
"network": "eip155:8453",
"resource": "https://api.better.com/v1/thing",
"amountUsd": 0.001,
"similarity": 0.912,
"endpointPage": "https://x402-trust.com/endpoint/12345",
"priceCeiling": false,
"recommendation": "proceed"
}
]
}
}
},
"tags": [
"x402",
"similar",
"discovery",
"routing",
"score"
],
"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": {
"type": "object",
"required": [
"resource",
"limit"
],
"properties": {
"limit": {
"type": "integer"
},
"resource": {
"type": "string"
}
}
},
"type": {
"const": "http"
},
"method": {
"enum": [
"GET",
"POST",
"PUT",
"PATCH",
"DELETE",
"HEAD"
]
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
]
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"resource",
"subject",
"count",
"alternatives",
"note"
],
"properties": {
"note": {
"type": "string"
},
"count": {
"type": "integer"
},
"subject": {
"type": "object",
"required": [
"score",
"grade",
"inObservationSet",
"vectorized"
],
"properties": {
"grade": {
"type": "string"
},
"score": {
"type": "number"
},
"vectorized": {
"type": "boolean"
},
"inObservationSet": {
"type": "boolean"
}
}
},
"resource": {
"type": "string"
},
"alternatives": {
"type": "array",
"items": {
"type": "object",
"required": [
"resource",
"score",
"grade",
"recommendation",
"similarity",
"amountUsd",
"priceCeiling",
"network",
"endpointPage"
],
"properties": {
"grade": {
"type": "string"
},
"score": {
"type": "number"
},
"network": {
"type": "string"
},
"resource": {
"type": "string"
},
"amountUsd": {
"type": "number"
},
"similarity": {
"type": "number"
},
"endpointPage": {
"type": "string"
},
"priceCeiling": {
"type": "boolean"
},
"recommendation": {
"type": "string"
}
}
}
}
}
}
}
}
}
},
"category": "data",
"discoverable": true
}
},
"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.
0.005USDC≈ $0.005 USD
on Base · exact scheme
Pay 0.005 USDC on Base to 0xbBEC…89285. The signed payment is good for 2 minutes.
- Paid to
- 0xbBEC…89285
- USD Coin contract
- 0x8335…02913
- Payment window
- 2 minutes
- As published
- 5000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xbBECBE90F28632a9d52ed67b33b43767b8c89285",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"outputSchema": {
"input": {
"type": "http",
"method": "POST",
"bodyType": "json",
"bodyFields": {
"limit": {
"type": "number",
"required": false,
"description": "Max alternatives to return (1-25, default 5)."
},
"resource": {
"type": "string",
"required": true,
"description": "Full x402 resource URL to find better alternatives for (must be in our observation set)."
},
"minScoreDelta": {
"type": "number",
"required": false,
"description": "Minimum trust-score advantage an alternative must have over the subject (default 5)."
}
},
"headerFields": {
"PAYMENT-SIGNATURE": {
"type": "string",
"required": true,
"description": "Base64-encoded JSON PaymentPayload; auto-filled by x402 clients."
}
}
},
"output": {
"count": "number",
"subject": "object",
"resource": "string",
"alternatives": "array"
}
},
"maxTimeoutSeconds": 120
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"limit": 5,
"resource": "https://api.example.com/v1/thing"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"note": "Semantically similar endpoints that out-score the subject. Similarity is cosine over description embeddings.",
"count": 2,
"subject": {
"grade": "C",
"score": 61.2,
"vectorized": true,
"inObservationSet": true
},
"resource": "https://api.example.com/v1/thing",
"alternatives": [
{
"grade": "A",
"score": 88.1,
"network": "eip155:8453",
"resource": "https://api.better.com/v1/thing",
"amountUsd": 0.001,
"similarity": 0.912,
"endpointPage": "https://x402.fuchss.app/endpoint/12345",
"priceCeiling": false,
"recommendation": "proceed"
}
]
}
}
},
"tags": [
"x402",
"similar",
"discovery",
"routing",
"score"
],
"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": {
"type": "object",
"required": [
"resource",
"limit"
],
"properties": {
"limit": {
"type": "integer"
},
"resource": {
"type": "string"
}
}
},
"type": {
"const": "http"
},
"method": {
"enum": [
"GET",
"POST",
"PUT",
"PATCH",
"DELETE",
"HEAD"
]
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
]
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"resource",
"subject",
"count",
"alternatives",
"note"
],
"properties": {
"note": {
"type": "string"
},
"count": {
"type": "integer"
},
"subject": {
"type": "object",
"required": [
"score",
"grade",
"inObservationSet",
"vectorized"
],
"properties": {
"grade": {
"type": "string"
},
"score": {
"type": "number"
},
"vectorized": {
"type": "boolean"
},
"inObservationSet": {
"type": "boolean"
}
}
},
"resource": {
"type": "string"
},
"alternatives": {
"type": "array",
"items": {
"type": "object",
"required": [
"resource",
"score",
"grade",
"recommendation",
"similarity",
"amountUsd",
"priceCeiling",
"network",
"endpointPage"
],
"properties": {
"grade": {
"type": "string"
},
"score": {
"type": "number"
},
"network": {
"type": "string"
},
"resource": {
"type": "string"
},
"amountUsd": {
"type": "number"
},
"similarity": {
"type": "number"
},
"endpointPage": {
"type": "string"
},
"priceCeiling": {
"type": "boolean"
},
"recommendation": {
"type": "string"
}
}
}
}
}
}
}
}
}
},
"category": "data",
"discoverable": true
}
}Provenance
- Seen in the source catalog
- 2026-09-09 14:28Z
- Last indexed by Roundhouse
- 2026-09-13 12:30Z
- Last enriched (probe, favicon, geo)
- 2026-09-14 00:45Z
- x402 version
- 2
- Max timeout
- 120s
- Liveness probe
- HTTP 402
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. 21 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 x402.fuchss.app 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.fuchss.app' 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.fuchss.app/v1/similar, 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.