recipient-check
Pre-send safety check: is this recipient a known malicious address (caught live on Base seeding address-poisoning via zero-value transfer sprays), or a look-alike of an address you trust? Checks our continuously-updated threat DB + deterministic look-alike logic. Answers an agent's 'is it safe to send here?' before every transfer.
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 0.005 USDC on Base to 0xD617…441eE. The signed payment is good for 5 minutes.
- Paid to
- 0xD617…441eE
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 5000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xD617a7145ca56E3ed58d639F9DEC6999B22441eE",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"recipient": "0x1234aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa5678",
"known_addresses": [
"0x1234bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb5678"
]
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"threat": {
"reason": "zero_value_transfer_spray",
"first_seen": 1719500000
},
"verdict": "known_threat",
"recipient": "0x1234aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa5678",
"confidence": 1,
"risk_flags": [
"zero_value_transfer_spray"
],
"action_hint": "do_not_send"
}
}
},
"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": [
"recipient"
],
"properties": {
"recipient": {
"type": "string",
"description": "0x EVM address you are about to send to"
},
"known_addresses": {
"type": "array",
"items": {
"oneOf": [
{
"type": "string"
},
{
"type": "object",
"required": [
"address"
],
"properties": {
"label": {
"type": "string"
},
"address": {
"type": "string"
}
}
}
]
},
"description": "(optional) your trusted addresses, for look-alike detection"
}
},
"description": "Before sending funds, check the recipient against our LIVE on-chain threat DB (addresses caught seeding address-poisoning via zero-value transfer sprays on Base) AND optionally against your known_addresses for look-alike spoofing. Deterministic."
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-08-31 05:01Z
- Last indexed by Roundhouse
- 2026-09-25 01:30Z
- Last enriched (probe, favicon, geo)
- 2026-09-12 08:15Z
- 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. 29 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 recipient-check 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=recipient-check' 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.dailyelo.com/v1/recipient-check, 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.