x402helper.xyz
No description published for this endpoint.
The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
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.
Pay 0.0017 USDC on Base to 0x3803…1101b. The signed payment is good for 5 minutes.
- Paid to
- 0x3803…1101b
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 1700 smallest units
- Returns
- application/json
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
- sLJ4un…WPBgk
- Token contract
- EPjFWd…TDt1v
- Payment window
- 5 minutes
- Returns
- application/json
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
- 0x3803…1101b
- Token contract
- 0xaf88…e5831
- Payment window
- 5 minutes
- Returns
- application/json
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
- 0x3803…1101b
- Token contract
- 0x8AC7…d580d
- Payment window
- 5 minutes
- Returns
- application/json
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
- 0x3803…1101b
- Token contract
- 0xe15f…42392
- Payment window
- 5 minutes
- Returns
- application/json
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x3803A19280DeeFe533D177C4A169412BD341101b",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://x402helper.xyz/discovery",
"description": "",
"maxAmountRequired": "1700",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "DeXterR2kQm8AvRHnNPatWkE46TfAcMeBDjb6FySoAb8"
},
"payTo": "sLJ4uneGcD1mg6hKtkLYsY5HCw1nJ8GpNAmbzBWPBgk",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"mimeType": "application/json",
"resource": "https://x402helper.xyz/discovery",
"description": "",
"maxAmountRequired": "1700",
"maxTimeoutSeconds": 300
},
{
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x3803A19280DeeFe533D177C4A169412BD341101b",
"scheme": "exact",
"network": "eip155:42161",
"mimeType": "application/json",
"resource": "https://x402helper.xyz/discovery",
"description": "",
"maxAmountRequired": "1700",
"maxTimeoutSeconds": 300
},
{
"asset": "0x8AC76a51cc950d9822D68b83fE1Ad97B32Cd580d",
"extra": {
"name": "USDC",
"version": "1",
"assetTransferMethod": "permit2"
},
"payTo": "0x3803A19280DeeFe533D177C4A169412BD341101b",
"scheme": "exact",
"network": "eip155:56",
"mimeType": "application/json",
"resource": "https://x402helper.xyz/discovery",
"description": "",
"maxAmountRequired": "1700000000000000",
"maxTimeoutSeconds": 300
},
{
"asset": "0xe15fC38F6D8c56aF07bbCBe3BAf5708A2Bf42392",
"extra": {
"name": "USDC",
"version": "2"
},
"payTo": "0x3803A19280DeeFe533D177C4A169412BD341101b",
"scheme": "exact",
"network": "eip155:1329",
"mimeType": "application/json",
"resource": "https://x402helper.xyz/discovery",
"description": "",
"maxAmountRequired": "1700",
"maxTimeoutSeconds": 300
}
]Provenance
- Seen in the source catalog
- 2026-10-20 17:56Z
- Last indexed by Roundhouse
- 2026-10-24 01:45Z
- Last enriched (probe, favicon, geo)
- 2026-10-24 02:16Z
- x402 version
- 1
- Max timeout
- 300s
- Liveness probe
- HTTP 200
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. 8 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 x402helper.xyz 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=x402helper.xyz' 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://x402helper.xyz/discovery, 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.