Kenward Receipts
Use when an agent must decide whether an address or x402 service has actually received USDC from anyone other than its operator - before paying it, listing it, or trusting a claim about it. Returns third-party total, distinct senders, first/last seen, block height. Scope: Base + USDC.
OtherLiveeip155:8453Exactvia facilitator:payAI
x402PaymentsReceiptsSettlementUsdc
Settlements · 30d
27↑ 667%
No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days.
$0.48
Verified settled volume
27 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
0x351eb3679f817ea7de8baeCbaF3Bd5120200eadcThe 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": "0x351eb3679f817ea7de8baeCbaF3Bd5120200eadc",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": {
"url": "https://pay.kenwardai.my.id/v1/settlement",
"tags": [
"x402",
"payments",
"receipts",
"settlement",
"usdc",
"base",
"who-paid",
"payment-evidence"
],
"iconUrl": "https://pay.kenwardai.my.id/favicon.svg",
"mimeType": "application/json",
"description": "Settlement reality: did this address or service actually RECEIVE money on Base, how much, from how many senders, and when last? Evidence of payments received - a question market-data APIs do not answer. Scope: Base + USDC only, stated in every response.",
"serviceName": "Kenward Receipts"
},
"networkV1": "base",
"description": "Settlement reality: did this address or service actually RECEIVE money on Base, how much, from how many senders, and when last? Evidence of payments received - a question market-data APIs do not answer. Scope: Base + USDC only, stated in every response.",
"facilitator": "https://facilitator.payai.network",
"resourcePath": "/v1/settlement",
"maxAmountRequired": "10000",
"maxTimeoutSeconds": 60
}
],
"resource": {
"url": "https://pay.kenwardai.my.id/v1/settlement",
"tags": [
"x402",
"payments",
"receipts",
"settlement",
"usdc",
"base",
"who-paid",
"payment-evidence"
],
"iconUrl": "https://pay.kenwardai.my.id/favicon.svg",
"mimeType": "application/json",
"description": "Settlement reality: did this address or service actually RECEIVE money on Base, how much, from how many senders, and when last? Evidence of payments received - a question market-data APIs do not answer. Scope: Base + USDC only, stated in every response.",
"serviceName": "Kenward Receipts"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"address": "",
"network": "eip155:8453",
"service": "",
"window_days": "30"
}
},
"output": {
"type": "json",
"example": {
"scope": {
"asset": "USDC",
"caip2": "eip155:8453",
"chain": "base",
"coverage_warning": "Only Base + USDC is observed."
},
"method": "indexer_then_rpc_chunks",
"target": {
"source": "address",
"address": "0x351eb3679f817ea7de8baecbaf3bd5120200eadc"
},
"caveats": [
"A sender outside the operator's declared list is not thereby an independent customer.",
"Payment is not proof of delivery."
],
"honesty": {
"delivery_verified": false,
"verified_independent_customers": null,
"unique_observed_sender_addresses": 1
},
"verdict": {
"label": "PAYS",
"plain": "USDC from addresses not declared by the operator was observed."
},
"truncated": false,
"freshness_s": 42,
"window_days": 30,
"evidence_tiers": {
"observed": {
"transfers": 6,
"total_usdc": 0.075
},
"classified": {
"from_undeclared_addresses": 1,
"from_declared_operator_addresses": 5
},
"unverified": [
"identity behind each sender address"
]
},
"schema_version": "1.2",
"observed_to_block": 53026703,
"finality_lag_blocks": 12,
"observed_from_block": 52830000
}
}
},
"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",
"properties": {
"address": {
"type": "string",
"description": "0x followed by 40 hex characters (use INSTEAD of service)"
},
"network": {
"type": "string",
"description": "eip155:8453 only in v1"
},
"service": {
"type": "string",
"description": "bare hostname whose 402 challenge declares the payTo (use INSTEAD of address)"
},
"window_days": {
"type": "string",
"description": "lookback window, 1-90 (default 30)"
}
},
"additionalProperties": false
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
},
"routeTemplate": "/v1/settlement"
},
"kenward": {
"info": {
"guarantee": "No subscription, no API key, no signup. If a request asks for a market we cannot measure, it is answered without charging you.",
"how_to_pay": "Send an x402 'exact' payment on eip155:8453 (USDC) matching accepts[0].maxAmountRequired, then repeat the SAME request with the PAYMENT-SIGNATURE header. One call, one price.",
"free_sample": "https://pay.kenwardai.my.id/v1/preview",
"no_account_needed": true
}
}
},
"facilitator": "https://facilitator.payai.network",
"x402Version": 2,
"x402VersionV1": 1
}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≈ $0.01 USD
on Base · exact scheme
Pay 0.01 USDC on Base to 0x351e…0eadc. The signed payment is good for 1 minute.
- Paid to
- 0x351e…0eadc
- USD Coin contract
- 0x8335…02913
- Payment window
- 1 minute
- As published
- 10000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x351eb3679f817ea7de8baeCbaF3Bd5120200eadc",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 60
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"address": "",
"network": "eip155:8453",
"service": "",
"window_days": "30"
}
},
"output": {
"type": "json",
"example": {
"scope": {
"asset": "USDC",
"caip2": "eip155:8453",
"chain": "base",
"coverage_warning": "Only Base + USDC is observed."
},
"method": "indexer_then_rpc_chunks",
"target": {
"source": "address",
"address": "0x351eb3679f817ea7de8baecbaf3bd5120200eadc"
},
"caveats": [
"A sender outside the operator's declared list is not thereby an independent customer.",
"Payment is not proof of delivery."
],
"honesty": {
"delivery_verified": false,
"verified_independent_customers": null,
"unique_observed_sender_addresses": 1
},
"verdict": {
"label": "PAYS",
"plain": "USDC from addresses not declared by the operator was observed."
},
"truncated": false,
"freshness_s": 42,
"window_days": 30,
"evidence_tiers": {
"observed": {
"transfers": 6,
"total_usdc": 0.075
},
"classified": {
"from_undeclared_addresses": 1,
"from_declared_operator_addresses": 5
},
"unverified": [
"identity behind each sender address"
]
},
"schema_version": "1.2",
"observed_to_block": 53026703,
"finality_lag_blocks": 12,
"observed_from_block": 52830000
}
}
},
"schema": {
"type": "object",
"$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",
"properties": {
"address": {
"type": "string",
"description": "0x followed by 40 hex characters (use INSTEAD of service)"
},
"network": {
"type": "string",
"description": "eip155:8453 only in v1"
},
"service": {
"type": "string",
"description": "bare hostname whose 402 challenge declares the payTo (use INSTEAD of address)"
},
"window_days": {
"type": "string",
"description": "lookback window, 1-90 (default 30)"
}
},
"additionalProperties": false
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
},
"routeTemplate": "/v1/settlement"
}
}Provenance
- Seen in the source catalog
- 2026-10-26 11:41Z
- Last indexed by Roundhouse
- 2026-10-26 12:46Z
- Last enriched (probe, favicon, geo)
- 2026-10-25 09:46Z
- x402 version
- 2
- Max timeout
- 60s
- 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
No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days. Verified volume counts only settlements with an on-chain EIP-3009 marker.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service Kenward Receipts 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=Kenward%20Receipts' 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://pay.kenwardai.my.id/v1/settlement, 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.