Korp TxCert
Check an unsigned EVM transaction before an AI agent signs it. Enforces spending limits, recipient restrictions, ERC20 approval rules, unlimited approval protection, and calldata policy. Only PASS receives a short-lived policy certificate. This is policy conformity, not simulation or a safety guarantee.
DataUnknowneip155:84532Exactvia facilitator:payAI
SecurityWallet-policyEvmPre-signApproval-guard
Activity
—
Nothing indexed for this service or its provider yet. Not a claim that it is unused — only that we hold no record.
$0.03
Verified settled volume
3 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
0xC7a0E085544c116dDf9f996108c553eeCE62E443The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x036CbD53842c5426634e7929541eC2318f3dCF7e
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.
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≈ $0.01 USD
on Base Sepolia · exact scheme
Pay 0.01 USDC on Base Sepolia to 0xC7a0…2E443. The signed payment is good for 1 minute.
- Paid to
- 0xC7a0…2E443
- USD Coin (Base Sepolia) contract
- 0x036C…dCF7e
- Payment window
- 1 minute
- As published
- 10000 smallest units
The catalog’s raw entry
[
{
"asset": "0x036CbD53842c5426634e7929541eC2318f3dCF7e",
"extra": {
"name": "USDC",
"version": "2"
},
"payTo": "0xC7a0E085544c116dDf9f996108c553eeCE62E443",
"amount": "10000",
"scheme": "exact",
"network": "eip155:84532",
"maxTimeoutSeconds": 60
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"from": "0x2222222222222222222222222222222222222222",
"policy": {
"maxTokenSpend": [],
"expectedAction": "native-transfer",
"allowedSpenders": [],
"allowUnknownCalls": false,
"allowedRecipients": [
"0x3333333333333333333333333333333333333333"
],
"maxNativeValueWei": "1000",
"allowUnlimitedApproval": false
},
"chainId": 84532,
"transaction": {
"to": "0x3333333333333333333333333333333333333333",
"data": "0x",
"nonce": "0",
"value": "1000"
}
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"checks": [
{
"id": "CHAIN_ALLOWED",
"status": "PASS"
},
{
"id": "SENDER_NOT_BURN",
"status": "PASS"
},
{
"id": "TARGET_NOT_BURN",
"status": "PASS"
},
{
"id": "NATIVE_VALUE_LIMIT",
"status": "BLOCK"
},
{
"id": "RECIPIENT_ALLOWED",
"status": "PASS"
},
{
"id": "EXPECTED_ACTION",
"status": "PASS"
}
],
"chainId": 84532,
"decoded": {
"action": "native-transfer",
"amount": "1001",
"recipient": "0x3333333333333333333333333333333333333333"
},
"version": "1",
"decision": "BLOCK",
"policyHash": "0x76c972b65aef2890ac0f1d0e1161b899b6e6cef2ebb56d90e16c3e1dc04ac8e0",
"certificate": null,
"transactionHash": "0x8aa9da2691fc96877ebe0b719758c1f88cdd88e3dc2f89453a03839d7731e1b8"
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"chainId",
"from",
"transaction",
"policy"
],
"properties": {
"from": {
"type": "string",
"pattern": "^0x[0-9a-fA-F]{40}$"
},
"policy": {
"type": "object",
"required": [
"expectedAction",
"allowedRecipients",
"allowedSpenders",
"maxNativeValueWei",
"maxTokenSpend",
"allowUnlimitedApproval",
"allowUnknownCalls"
],
"properties": {
"maxTokenSpend": {
"type": "array",
"items": {
"type": "object",
"required": [
"token",
"amount"
],
"properties": {
"token": {
"type": "string",
"pattern": "^0x[0-9a-fA-F]{40}$"
},
"amount": {
"type": "string",
"pattern": "^(0|[1-9][0-9]*)$",
"maxLength": 78
}
},
"additionalProperties": false
},
"maxItems": 100
},
"expectedAction": {
"enum": [
"native-transfer",
"transfer",
"transferFrom",
"approve",
"swap",
"unknown"
],
"type": "string"
},
"allowedSpenders": {
"type": "array",
"items": {
"type": "string",
"pattern": "^0x[0-9a-fA-F]{40}$"
},
"maxItems": 100
},
"allowUnknownCalls": {
"type": "boolean"
},
"allowedRecipients": {
"type": "array",
"items": {
"type": "string",
"pattern": "^0x[0-9a-fA-F]{40}$"
},
"maxItems": 100
},
"maxNativeValueWei": {
"type": "string",
"pattern": "^(0|[1-9][0-9]*)$",
"maxLength": 78
},
"allowUnlimitedApproval": {
"type": "boolean"
}
},
"additionalProperties": false
},
"chainId": {
"type": "number",
"const": 84532
},
"transaction": {
"type": "object",
"required": [
"to",
"data",
"value"
],
"properties": {
"to": {
"type": "string",
"pattern": "^0x[0-9a-fA-F]{40}$"
},
"data": {
"type": "string",
"pattern": "^0x(?:[0-9a-fA-F]{2})*$",
"maxLength": 8194
},
"nonce": {
"type": "string",
"pattern": "^(0|[1-9][0-9]*)$",
"maxLength": 78
},
"value": {
"type": "string",
"pattern": "^(0|[1-9][0-9]*)$",
"maxLength": 78
}
},
"additionalProperties": false
}
},
"additionalProperties": false
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"version",
"decision",
"chainId",
"transactionHash",
"policyHash",
"decoded",
"checks",
"certificate"
],
"properties": {
"checks": {
"type": "array",
"items": {
"type": "object",
"required": [
"id",
"status"
],
"properties": {
"id": {
"type": "string"
},
"status": {
"enum": [
"PASS",
"WARN",
"BLOCK"
],
"type": "string"
}
},
"additionalProperties": false
}
},
"chainId": {
"type": "integer",
"maximum": 9007199254740991,
"minimum": -9007199254740991
},
"decoded": {
"type": "object",
"propertyNames": {
"type": "string"
},
"additionalProperties": {
"type": "string"
}
},
"version": {
"type": "string",
"const": "1"
},
"decision": {
"enum": [
"PASS",
"WARN",
"BLOCK"
],
"type": "string"
},
"policyHash": {
"type": "string",
"pattern": "^0x[0-9a-fA-F]{64}$"
},
"certificate": {
"anyOf": [
{
"type": "object",
"required": [
"version",
"issuedAt",
"expiresAt",
"chainId",
"transactionHash",
"policyHash",
"decision",
"attestor",
"service",
"signature"
],
"properties": {
"chainId": {
"anyOf": [
{
"type": "number",
"const": 84532
},
{
"type": "number",
"const": 8453
}
]
},
"service": {
"type": "string",
"format": "uri",
"maxLength": 2048
},
"version": {
"type": "number",
"const": 1
},
"attestor": {
"type": "string",
"pattern": "^0x[0-9a-fA-F]{40}$"
},
"decision": {
"type": "string",
"const": "PASS"
},
"issuedAt": {
"type": "integer",
"maximum": 9007199254740991,
"minimum": 0
},
"expiresAt": {
"type": "integer",
"maximum": 9007199254740991,
"minimum": 0
},
"signature": {
"type": "string",
"pattern": "^0x[0-9a-fA-F]{130}$"
},
"policyHash": {
"type": "string",
"pattern": "^0x[0-9a-fA-F]{64}$"
},
"transactionHash": {
"type": "string",
"pattern": "^0x[0-9a-fA-F]{64}$"
}
},
"additionalProperties": false
},
{
"type": "null"
}
]
},
"transactionHash": {
"type": "string",
"pattern": "^0x[0-9a-fA-F]{64}$"
}
},
"additionalProperties": false
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-09-25 06:26Z
- Last indexed by Roundhouse
- 2026-10-31 14:15Z
- Last enriched (probe, favicon, geo)
- —
- x402 version
- 2
- Max timeout
- 60s
- Liveness probe
- Not probed
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
Nothing indexed for this service or its provider yet. Not a claim that it is unused — only that we hold no record. Verified volume counts only settlements with an on-chain EIP-3009 marker.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service Korp TxCert 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=Korp%20TxCert' 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://korp-txcert-sepolia.mute-cell-557f.workers.dev/v1/certify, 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://preview.roundhouseai.io/dashboard/connections. If you have neither, ask before going further. If you do not have Roundhouse tools or skills installed, read https://preview.roundhouseai.io/skill.md first — it is the whole procedure.