Verified Contract ABI (Sourcify)
ABI and readable function/event signatures of a verified smart contract from Sourcify, with contract name, compiler, licence, proxy implementation and deployer. Use before calling or decoding a contract.
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 0.003 USDC on Base to 0x1129…e1871. The signed payment is good for 5 minutes.
- Paid to
- 0x1129…e1871
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 3000 smallest units
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
- 0x1129…e1871
- Token contract
- 0x3c49…c3359
- Payment window
- 5 minutes
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
- 0x1129…e1871
- Token contract
- 0xaf88…e5831
- Payment window
- 5 minutes
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x1129A6BB9C6165FF07fdC509c107B522CA0e1871",
"amount": "3000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x1129A6BB9C6165FF07fdC509c107B522CA0e1871",
"amount": "3000",
"scheme": "exact",
"network": "eip155:137",
"maxTimeoutSeconds": 300
},
{
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x1129A6BB9C6165FF07fdC509c107B522CA0e1871",
"amount": "3000",
"scheme": "exact",
"network": "eip155:42161",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"address": "0x1F98431c8aD98523631AE4a59f267346ea31F984"
}
},
"output": {
"type": "json",
"example": {
"abi": [
{
"type": "constructor",
"inputs": [],
"stateMutability": "nonpayable"
},
{
"name": "FeeAmountEnabled",
"type": "event",
"inputs": [
{
"name": "fee",
"type": "uint24",
"indexed": true,
"internalType": "uint24"
},
{
"name": "tickSpacing",
"type": "int24",
"indexed": true,
"internalType": "int24"
}
],
"anonymous": false
}
],
"name": "UniswapV3Factory",
"chain": "ethereum",
"match": "match",
"errors": [],
"events": [
"FeeAmountEnabled(uint24,int24)",
"OwnerChanged(address,address)"
],
"source": "Sourcify verified contracts",
"address": "0x1F98431c8aD98523631AE4a59f267346ea31F984",
"chain_id": 1,
"compiler": "0.7.6+commit.7338295f",
"deployer": "0x6C9FC64A53c1b71FB3f9Af64d1ae3A4931A5f4E9",
"is_proxy": false,
"language": "Solidity",
"licenses": [
"BUSL-1.1",
"GPL-2.0-or-later"
],
"deploy_tx": "0x1e20cd6d47d7021ae7e437792823517eeadd835df09dde17ab45afd7a5df4603",
"functions": [
"createPool(address,address,uint24) nonpayable returns (address)",
"enableFeeAmount(uint24,int24) nonpayable"
],
"optimizer": {
"runs": 800,
"enabled": true
},
"proxy_type": null,
"verified_at": "2024-08-08T11:49:17Z",
"implementations": []
}
}
},
"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",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [
"address"
],
"properties": {
"chain": {
"type": "string",
"description": "ethereum, base, arbitrum, optimism, polygon, bsc, avalanche, gnosis, linea, scroll, zksync or a chain id"
},
"address": {
"type": "string",
"description": "Contract address (0x...)"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-10-26 10:28Z
- Last indexed by Roundhouse
- 2026-10-26 17:30Z
- Last enriched (probe, favicon, geo)
- 2026-10-26 13:16Z
- x402 version
- 2
- Max timeout
- 300s
- 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 Verified Contract ABI (Sourcify) 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=Verified%20Contract%20ABI%20(Sourcify)' 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://bess-x402.onrender.com/v1/evm/contract-abi, 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.