x402-doctor.fizzl.eu
No description published for this endpoint.
OtherLiveeip155:8453Exactvia facilitator:thirdweb
Calls · 30d
6↑ 50%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 32 snapshots so far.
$7.24
Verified settled volume
200 settlements proven x402 by their on-chain EIP-3009 marker.
$0.010
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
0x6B0F4651eD42893ab58139938175E4a69f175F25The 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": "0x6B0F4651eD42893ab58139938175E4a69f175F25",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
},
"payTo": "ATWJ82T8nRdQwZnaysB68N5EpaSvLRsQP4h6eWmaJBH9",
"amount": "10000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://x402-doctor.fizzl.eu/api/v1/diagnose",
"tags": [
"x402",
"developer-tools",
"diagnostics",
"debug",
"payments"
],
"mimeType": "application/json",
"description": "Why is my x402 endpoint broken? Diagnose and debug an x402 payment endpoint (or MCP server) when payments fail: checks the 402 challenge, accepts[] (network, payTo, amount, asset), resource URL, Solana settlement readiness, which wallets and agents can pay, Bazaar/OpenAPI discovery and the browser paywall. Returns every check with a fix hint. Read-only: never pays.",
"serviceName": "x402 Doctor"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"url": "https://ichimoku-signal.fizzl.eu/signal/BTC-USDT",
"method": "GET"
}
},
"output": {
"type": "json",
"example": {
"url": "https://ichimoku-signal.fizzl.eu/signal/BTC-USDT",
"checks": [
{
"id": "returns-402",
"group": "challenge",
"status": "pass",
"message": "Endpoint returns 402 Payment Required for GET."
}
],
"method": "GET",
"overall": "pass",
"challenge": null
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [
"url"
],
"properties": {
"url": {
"type": "string",
"description": "The x402 endpoint to diagnose (public http(s) URL)."
},
"method": {
"enum": [
"GET",
"POST"
],
"type": "string",
"description": "HTTP method of the endpoint. Default: try GET, then POST."
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"url",
"overall",
"checks"
],
"properties": {
"url": {
"type": "string"
},
"checks": {
"type": "array",
"items": {
"type": "object",
"required": [
"id",
"status",
"message"
],
"properties": {
"id": {
"type": "string"
},
"hint": {
"type": "string"
},
"group": {
"enum": [
"challenge",
"accepts",
"resource",
"settlement",
"wallets",
"discovery",
"browser"
],
"type": "string"
},
"status": {
"enum": [
"pass",
"warn",
"fail",
"info",
"skip"
],
"type": "string"
},
"message": {
"type": "string"
}
}
}
},
"method": {
"enum": [
"GET",
"POST",
null
],
"type": [
"string",
"null"
]
},
"overall": {
"enum": [
"pass",
"warn",
"fail"
],
"type": "string"
},
"wallets": {
"type": "array",
"items": {
"type": "object",
"properties": {
"no": {
"type": "array",
"items": {
"type": "object",
"properties": {
"reason": {
"type": "string"
},
"network": {
"type": "string"
}
}
}
},
"yes": {
"type": "array",
"items": {
"type": "string"
}
},
"agent": {
"type": "boolean"
},
"wallet": {
"type": "string"
}
}
},
"description": "Which wallets can pay: per wallet, the networks where payment works (yes) and where it fails, with the reason (no)."
},
"challenge": {
"type": [
"object",
"null"
]
}
}
}
}
}
}
}
}
},
"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.
0.01USDC≈ $0.01 USD
on Base · exact scheme
Pay 0.01 USDC on Base to 0x6B0F…75F25. The signed payment is good for 5 minutes.
- Paid to
- 0x6B0F…75F25
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 10000 smallest units
- Returns
- application/json
10000units
on solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · exact scheme
That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.
- Paid to
- ATWJ82…aJBH9
- Token contract
- EPjFWd…TDt1v
- Payment window
- 5 minutes
- Returns
- application/json
10000units
on algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73k · exact scheme
That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.
- Paid to
- LOYVFS…DXAX4
- Token contract
- 31566704
- Payment window
- 5 minutes
- Returns
- application/json
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x6B0F4651eD42893ab58139938175E4a69f175F25",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://x402-doctor.fizzl.eu/api/v1/diagnose",
"description": "",
"maxAmountRequired": "10000",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
},
"payTo": "ATWJ82T8nRdQwZnaysB68N5EpaSvLRsQP4h6eWmaJBH9",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"mimeType": "application/json",
"resource": "https://x402-doctor.fizzl.eu/api/v1/diagnose",
"description": "",
"maxAmountRequired": "10000",
"maxTimeoutSeconds": 300
},
{
"asset": "31566704",
"extra": {
"feePayer": "ZMFK2OI7ZBD2U27ISERZC4S6LKM6WMFJPZQ4MYNJDZ2VNBNMBA67RA22AA"
},
"payTo": "LOYVFSQ6ZTS2YWUW4GQ5L6VPP2TPIOXWYDACK53CPOHQQHLDMEMKJDXAX4",
"scheme": "exact",
"network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73k",
"mimeType": "application/json",
"resource": "https://x402-doctor.fizzl.eu/api/v1/diagnose",
"description": "",
"maxAmountRequired": "10000",
"maxTimeoutSeconds": 300
}
]Provenance
- Seen in the source catalog
- 2026-10-19 12:35Z
- Last indexed by Roundhouse
- 2026-10-24 06:16Z
- Last enriched (probe, favicon, geo)
- 2026-09-29 17:45Z
- x402 version
- 1
- Max timeout
- 300s
- 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. 32 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-doctor.fizzl.eu 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-doctor.fizzl.eu' 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-doctor.fizzl.eu/api/v1/diagnose, 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. Either pay over x402 (mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at https://roundhouseai.io/dashboard/connections. If you have neither, ask before going further. If you do not have Roundhouse tools or skills installed, read https://roundhouseai.io/skill.md first — it is the whole procedure.