Know-Your-Agent counterparty screening — reputation pillar
Know-Your-Agent counterparty screening — reputation pillar. Signed ALLOW/WARN/BLOCK verdict on (domain, receiving address, amount, chain) before you release USDC. Screens the counterparty tuple you supply — not the calling agent's identity. Full method + scope: https://x402.payperbyte.io/feeds
Answeringour last check, 2026-09-24
1 of 1checks answered this week
710 msmedian answer time
$0.1listed price per call
$0.1price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://x402.payperbyte.io/feeds/address-reputation
| Category | Everything else |
|---|---|
| Provider host | x402.payperbyte.io |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-09-24 | valid payment request | 402 | $0.1 | 710 ms |
Example input (from the provider)
{
"body": {
"address": "0x1111111111111111111111111111111111111111",
"amount": 50000,
"chain": "base",
"domain": "example.com"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"anyOf": [
{
"required": [
"domain"
]
},
{
"required": [
"url"
]
}
],
"properties": {
"address": {
"description": "The receiving address about to be paid. On-chain history + blocklist are checked on the selected chain.",
"pattern": "^0x[0-9a-fA-F]{40}$",
"type": "string"
},
"amount": {
"description": "Optional. The payment amount in atomic units \u2014 logged with the query and bound into the verdict context.",
"minimum": 0,
"type": "integer"
},
"chain": {
"description": "Mainnet for the on-chain receiving-address signals (default \"base\" = Base mainnet; \"arbitrum-one\" = Arbitrum One mainnet). Mainnets only \u2014 a testnet returns meaningless zeros for a real payee. (The Arbitrum Sepolia testnet is opt-in dev-only via ADDRESS_REP_ENABLE_TESTNET as chain \"arbitrum-sepolia\", and is intentionally not advertised here.)",
"enum": [
"base",
"arbitrum-one"
],
"type": "string"
},
"domain": {
"description": "The payee's web domain, e.g. \"github.com\". BLOCK if it doesn't resolve or hits the blocklist. Provide either `domain` or its alias `url`.",
"minLength": 1,
"type": "string"
},
"url": {
"description": "Alias for `domain` \u2014 the payee's web domain/URL. Accepted interchangeably with `domain` (provide at least one).",
"minLength": 1,
"type": "string"
}
},
"required": [
"address"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}