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
3→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 20 snapshots so far.
$6.37
Verified settled volume
194 settlements proven x402 by their on-chain EIP-3009 marker.
$0.200
Listed price
As published in the catalog. Always read the live 402 before paying.
3
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-08-24 17:10Z
—
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": "200000",
"scheme": "exact",
"network": "eip155:8453",
"outputSchema": {
"input": {
"type": "http",
"method": "POST",
"bodyType": "json",
"bodyFields": {
"events": {
"type": "array",
"required": false,
"description": "Event types to subscribe to (default all): payto_change, price_change, asset_network_change, spec_regression, delisting, liveness_down, liveness_recovered, liveness_flapping."
},
"delivery": {
"type": "object",
"required": false,
"description": "Optional push delivery: { webhook_url(s), slack_url(s) } (https public hosts, max 5 each). Each field accepts a single URL string or an array of URLs; webhook_url(s) = signed HTTPS webhook; slack_url(s) = Slack or Discord incoming webhook. All URLs are connection-tested before you're charged. Polling is always available."
},
"endpoint": {
"type": "string",
"required": true,
"description": "Full x402 resource URL to watch (must be in our observation set)."
},
"liveness_sensitivity_n": {
"type": "number",
"required": false,
"description": "Consecutive missed probes before a liveness_down is surfaced to you (1=paranoid … 10=relaxed; default 2)."
}
},
"headerFields": {
"PAYMENT-SIGNATURE": {
"type": "string",
"required": true,
"description": "Base64-encoded JSON PaymentPayload; auto-filled by x402 clients."
}
}
},
"output": {
"secret": "string",
"watched": "array",
"delivery": "object",
"edit_url": "string",
"poll_url": "string",
"watch_id": "string",
"renew_url": "string",
"cancel_url": "string",
"expires_at": "number",
"next_steps": "array",
"subscribed_events": "array | 'all'",
"probe_interval_sec": "number",
"liveness_sensitivity_n": "number"
}
},
"maxTimeoutSeconds": 120
}
],
"resource": {
"url": "https://x402-trust.com/v1/watch-endpoint-30d",
"tags": [
"x402",
"trust",
"reliability",
"monitoring",
"uptime",
"agents"
],
"iconUrl": "https://x402-trust.com/favicon.svg",
"mimeType": "application/json",
"description": "Monitor ONE x402 endpoint for 30 days and get alerted on changes that break agents: payTo changes (critical — possible takeover/rug), price changes, asset/network changes, 402-spec regressions, delisting, and liveness (down/recovered). Account-free: pay, receive a one-time secret + poll URL. Push to multiple signed HTTPS webhooks and/or Slack/Discord incoming webhooks (up to 5 each per watch). Every push URL is connection-tested before payment — unreachable URLs are rejected with no charge. Edit URLs or cancel early for free via bearer-authed PATCH/DELETE /v1/watch/{id}. Poll the append-only event log; nothing is lost between polls.",
"providerUrl": "https://x402-trust.com",
"serviceName": "x402 Trust: trust & reliability data for x402 endpoints"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"events": [
"payto_change",
"price_change",
"delisting"
],
"delivery": {
"slack_url": "https://hooks.slack.com/services/…",
"webhook_urls": [
"https://your-app.example.com/x402-alerts",
"https://backup.example.com/x402-alerts"
]
},
"endpoint": "https://api.example.com/v1/thing",
"liveness_sensitivity_n": 2
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"secret": "wsk_… (shown once — store it now)",
"watched": [
{
"resource": "https://api.example.com/v1/thing",
"endpoint_id": 123
}
],
"delivery": {
"poll": true,
"slack": [],
"webhook": [
"https://your-app.example.com/x402-alerts"
]
},
"edit_url": "/v1/watch/01J8Z9K7X4QmY9example",
"poll_url": "/v1/watch/01J8Z9K7X4QmY9example/events",
"watch_id": "01J8Z9K7X4Qmy9example",
"renew_url": "/v1/watch/01J8Z9K7X4QmY9example/renew",
"cancel_url": "/v1/watch/01J8Z9K7X4QmY9example",
"expires_at": 1751328000000,
"next_steps": [
{
"step": 1,
"action": "store_secret",
"details": "Store `secret` in a secrets manager. It is shown only once; we only store its SHA-256 hash."
},
{
"url": "/v1/watch/01J8Z9K7X4QmY9example/events",
"step": 2,
"action": "poll_events",
"method": "GET",
"details": "Read the append-only event log. Nothing that happened between two polls is lost.",
"headers": {
"Authorization": "Bearer wsk_…"
},
"cursor_hint": "Start without `since`; then use the highest returned `event_id` as the next `since` value.",
"cursor_param": "since"
},
{
"step": 3,
"action": "verify_webhook",
"details": "If you configured webhook_url(s), verify every incoming POST: the `x-signature` header must equal `sha256=` + HMAC-SHA256(body) keyed by hex(sha256(secret)) (NOT the raw secret). A `connection_test` ping is sent during setup — see delivery.connection_test.",
"enabled": true
},
{
"url": "/v1/watch/01J8Z9K7X4QmY9example",
"step": 4,
"action": "edit",
"method": "PATCH",
"details": "Change webhook/Slack URLs, liveness sensitivity, or subscribed events for free. PATCH with Authorization: Bearer <secret>; new URLs are connection-tested.",
"headers": {
"Authorization": "Bearer wsk_…"
}
},
{
"url": "/v1/watch/01J8Z9K7X4QmY9example",
"step": 5,
"action": "cancel",
"method": "DELETE",
"details": "Stop monitoring early (probing drops to normal cadence immediately). Free, bearer-authed.",
"headers": {
"Authorization": "Bearer wsk_…"
}
},
{
"url": "/v1/watch/01J8Z9K7X4QmY9example/renew",
"step": 6,
"action": "renew",
"method": "POST",
"details": "Extend the watch by 30 days before expires_at. The secret stays the same."
}
],
"subscribed_events": "all",
"probe_interval_sec": 300,
"liveness_sensitivity_n": 2
}
}
},
"tags": [
"x402",
"watch",
"monitoring",
"alerts"
],
"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": [
"endpoint",
"events",
"liveness_sensitivity_n",
"delivery"
],
"properties": {
"events": {
"type": "array",
"items": {
"type": "string"
}
},
"delivery": {
"type": "object",
"required": [
"webhook_urls",
"slack_url"
],
"properties": {
"slack_url": {
"type": "string"
},
"webhook_urls": {
"type": "array",
"items": {
"type": "string"
}
}
}
},
"endpoint": {
"type": "string"
},
"liveness_sensitivity_n": {
"type": "integer"
}
}
},
"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": [
"watch_id",
"secret",
"poll_url",
"renew_url",
"edit_url",
"cancel_url",
"expires_at",
"watched",
"probe_interval_sec",
"subscribed_events",
"liveness_sensitivity_n",
"delivery",
"next_steps"
],
"properties": {
"secret": {
"type": "string"
},
"watched": {
"type": "array",
"items": {
"type": "object",
"required": [
"endpoint_id",
"resource"
],
"properties": {
"resource": {
"type": "string"
},
"endpoint_id": {
"type": "integer"
}
}
}
},
"delivery": {
"type": "object",
"required": [
"poll",
"webhook",
"slack"
],
"properties": {
"poll": {
"type": "boolean"
},
"slack": {
"type": "array"
},
"webhook": {
"type": "array",
"items": {
"type": "string"
}
}
}
},
"edit_url": {
"type": "string"
},
"poll_url": {
"type": "string"
},
"watch_id": {
"type": "string"
},
"renew_url": {
"type": "string"
},
"cancel_url": {
"type": "string"
},
"expires_at": {
"type": "integer"
},
"next_steps": {
"type": "array",
"items": {
"type": "object",
"required": [
"step",
"action",
"details"
],
"properties": {
"url": {
"type": "string"
},
"step": {
"type": "integer"
},
"action": {
"type": "string"
},
"method": {
"type": "string"
},
"details": {
"type": "string"
},
"enabled": {
"type": "boolean"
},
"headers": {
"type": "object",
"required": [
"Authorization"
],
"properties": {
"Authorization": {
"type": "string"
}
}
},
"cursor_hint": {
"type": "string"
},
"cursor_param": {
"type": "string"
}
}
}
},
"subscribed_events": {
"type": "string"
},
"probe_interval_sec": {
"type": "integer"
},
"liveness_sensitivity_n": {
"type": "integer"
}
}
}
}
}
}
},
"category": "monitoring",
"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.
0.2USDC≈ $0.2 USD
on Base · exact scheme
Pay 0.2 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
- 200000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xbBECBE90F28632a9d52ed67b33b43767b8c89285",
"amount": "200000",
"scheme": "exact",
"network": "eip155:8453",
"outputSchema": {
"input": {
"type": "http",
"method": "POST",
"bodyType": "json",
"bodyFields": {
"events": {
"type": "array",
"required": false,
"description": "Event types to subscribe to (default all): payto_change, price_change, asset_network_change, spec_regression, delisting, liveness_down, liveness_recovered, liveness_flapping."
},
"delivery": {
"type": "object",
"required": false,
"description": "Optional push delivery: { webhook_url(s), slack_url(s) } (https public hosts, max 5 each). Each field accepts a single URL string or an array of URLs; webhook_url(s) = signed HTTPS webhook; slack_url(s) = Slack or Discord incoming webhook. All URLs are connection-tested before you're charged. Polling is always available."
},
"endpoint": {
"type": "string",
"required": true,
"description": "Full x402 resource URL to watch (must be in our observation set)."
},
"liveness_sensitivity_n": {
"type": "number",
"required": false,
"description": "Consecutive missed probes before a liveness_down is surfaced to you (1=paranoid … 10=relaxed; default 2)."
}
},
"headerFields": {
"PAYMENT-SIGNATURE": {
"type": "string",
"required": true,
"description": "Base64-encoded JSON PaymentPayload; auto-filled by x402 clients."
}
}
},
"output": {
"secret": "string",
"watched": "array",
"delivery": "object",
"edit_url": "string",
"poll_url": "string",
"watch_id": "string",
"renew_url": "string",
"cancel_url": "string",
"expires_at": "number",
"next_steps": "array",
"subscribed_events": "array | 'all'",
"probe_interval_sec": "number",
"liveness_sensitivity_n": "number"
}
},
"maxTimeoutSeconds": 120
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"events": [
"payto_change",
"price_change",
"delisting"
],
"delivery": {
"slack_url": "https://hooks.slack.com/services/…",
"webhook_urls": [
"https://your-app.example.com/x402-alerts",
"https://backup.example.com/x402-alerts"
]
},
"endpoint": "https://api.example.com/v1/thing",
"liveness_sensitivity_n": 2
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"secret": "wsk_… (shown once — store it now)",
"watched": [
{
"resource": "https://api.example.com/v1/thing",
"endpoint_id": 123
}
],
"delivery": {
"poll": true,
"slack": [],
"webhook": [
"https://your-app.example.com/x402-alerts"
]
},
"edit_url": "/v1/watch/01J8Z9K7X4QmY9example",
"poll_url": "/v1/watch/01J8Z9K7X4QmY9example/events",
"watch_id": "01J8Z9K7X4Qmy9example",
"renew_url": "/v1/watch/01J8Z9K7X4QmY9example/renew",
"cancel_url": "/v1/watch/01J8Z9K7X4QmY9example",
"expires_at": 1751328000000,
"next_steps": [
{
"step": 1,
"action": "store_secret",
"details": "Store `secret` in a secrets manager. It is shown only once; we only store its SHA-256 hash."
},
{
"url": "/v1/watch/01J8Z9K7X4QmY9example/events",
"step": 2,
"action": "poll_events",
"method": "GET",
"details": "Read the append-only event log. Nothing that happened between two polls is lost.",
"headers": {
"Authorization": "Bearer wsk_…"
},
"cursor_hint": "Start without `since`; then use the highest returned `event_id` as the next `since` value.",
"cursor_param": "since"
},
{
"step": 3,
"action": "verify_webhook",
"details": "If you configured webhook_url(s), verify every incoming POST: the `x-signature` header must equal `sha256=` + HMAC-SHA256(body) keyed by hex(sha256(secret)) (NOT the raw secret). A `connection_test` ping is sent during setup — see delivery.connection_test.",
"enabled": true
},
{
"url": "/v1/watch/01J8Z9K7X4QmY9example",
"step": 4,
"action": "edit",
"method": "PATCH",
"details": "Change webhook/Slack URLs, liveness sensitivity, or subscribed events for free. PATCH with Authorization: Bearer <secret>; new URLs are connection-tested.",
"headers": {
"Authorization": "Bearer wsk_…"
}
},
{
"url": "/v1/watch/01J8Z9K7X4QmY9example",
"step": 5,
"action": "cancel",
"method": "DELETE",
"details": "Stop monitoring early (probing drops to normal cadence immediately). Free, bearer-authed.",
"headers": {
"Authorization": "Bearer wsk_…"
}
},
{
"url": "/v1/watch/01J8Z9K7X4QmY9example/renew",
"step": 6,
"action": "renew",
"method": "POST",
"details": "Extend the watch by 30 days before expires_at. The secret stays the same."
}
],
"subscribed_events": "all",
"probe_interval_sec": 300,
"liveness_sensitivity_n": 2
}
}
},
"tags": [
"x402",
"watch",
"monitoring",
"alerts"
],
"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": [
"endpoint",
"events",
"liveness_sensitivity_n",
"delivery"
],
"properties": {
"events": {
"type": "array",
"items": {
"type": "string"
}
},
"delivery": {
"type": "object",
"required": [
"webhook_urls",
"slack_url"
],
"properties": {
"slack_url": {
"type": "string"
},
"webhook_urls": {
"type": "array",
"items": {
"type": "string"
}
}
}
},
"endpoint": {
"type": "string"
},
"liveness_sensitivity_n": {
"type": "integer"
}
}
},
"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": [
"watch_id",
"secret",
"poll_url",
"renew_url",
"edit_url",
"cancel_url",
"expires_at",
"watched",
"probe_interval_sec",
"subscribed_events",
"liveness_sensitivity_n",
"delivery",
"next_steps"
],
"properties": {
"secret": {
"type": "string"
},
"watched": {
"type": "array",
"items": {
"type": "object",
"required": [
"endpoint_id",
"resource"
],
"properties": {
"resource": {
"type": "string"
},
"endpoint_id": {
"type": "integer"
}
}
}
},
"delivery": {
"type": "object",
"required": [
"poll",
"webhook",
"slack"
],
"properties": {
"poll": {
"type": "boolean"
},
"slack": {
"type": "array"
},
"webhook": {
"type": "array",
"items": {
"type": "string"
}
}
}
},
"edit_url": {
"type": "string"
},
"poll_url": {
"type": "string"
},
"watch_id": {
"type": "string"
},
"renew_url": {
"type": "string"
},
"cancel_url": {
"type": "string"
},
"expires_at": {
"type": "integer"
},
"next_steps": {
"type": "array",
"items": {
"type": "object",
"required": [
"step",
"action",
"details"
],
"properties": {
"url": {
"type": "string"
},
"step": {
"type": "integer"
},
"action": {
"type": "string"
},
"method": {
"type": "string"
},
"details": {
"type": "string"
},
"enabled": {
"type": "boolean"
},
"headers": {
"type": "object",
"required": [
"Authorization"
],
"properties": {
"Authorization": {
"type": "string"
}
}
},
"cursor_hint": {
"type": "string"
},
"cursor_param": {
"type": "string"
}
}
}
},
"subscribed_events": {
"type": "string"
},
"probe_interval_sec": {
"type": "integer"
},
"liveness_sensitivity_n": {
"type": "integer"
}
}
}
}
}
}
},
"category": "monitoring",
"discoverable": true
}
}Provenance
- Seen in the source catalog
- 2026-08-24 17:09Z
- Last indexed by Roundhouse
- 2026-09-13 12:10Z
- Last enriched (probe, favicon, geo)
- 2026-09-14 03:45Z
- 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. 20 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/watch-endpoint-30d, 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.