Signed attestation (ECDSA plus a post-quantum ML-DSA-65 companion) of on-chain wallet cond
Signed attestation (ECDSA plus a post-quantum ML-DSA-65 companion) of on-chain wallet conditions across 39 chains: token balance, NFT ownership, EAS, Farcaster, view calls, ratio rules, and agent standing (ERC-8004 registration, ERC-7710 delegation validity with revocation proof). A verifiable boolean, never raw balances. Up to 10 conditions per pay-per-call request. Pay in USDC on Base, Polygon, Arbitrum, or Solana.
50000 (raw units)
price
17
calls / 30d
6
unique payers
2026-09-17
updated
Provider
api.insumermodel.com · discovered, not yet claimed by its owner
Payment (x402 accepts[])
[
{
"scheme": "exact",
"network": "eip155:8453",
"payTo": "0xAd982CB19aCCa2923Df8F687C0614a7700255a23",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "50000",
"maxTimeoutSeconds": 60
},
{
"scheme": "exact",
"network": "eip155:137",
"payTo": "0xAd982CB19aCCa2923Df8F687C0614a7700255a23",
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"amount": "50000",
"maxTimeoutSeconds": 60
},
{
"scheme": "exact",
"network": "eip155:42161",
"payTo": "0xAd982CB19aCCa2923Df8F687C0614a7700255a23",
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"amount": "50000",
"maxTimeoutSeconds": 60
},
{
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "6a1mLjefhvSJX1sEX8PTnionbE9DqoYjU6F6bNkT4Ydr",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"amount": "50000",
"maxTimeoutSeconds": 60
}
]Output schema
{
"bazaar": {
"info": {
"input": {
"body": {
"conditions": [
{
"chainId": 8453,
"contractAddress": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
"threshold": "1",
"type": "token_balance"
}
],
"wallet": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"
},
"method": "POST",
"type": "http"
},
"output": {
"example": {
"data": {
"attestation": {
"id": "ATST-…",
"pass": true,
"results": [
{
"blockNumber": "0x…",
"conditionHash": "0x…",
"met": true
}
]
},
"kid": "insumer-attest-v2",
"sig": "…"
}
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"properties": {
"body": {
"properties": {
"conditions": {
"items": {
"properties": {
"chainId": {
"description": "Numeric EVM chain id, or 'solana' | 'xrpl' | 'bitcoin' | 'tron' | 'stellar' | 'sui'"
},
"contractAddress": {
"type": "string"
},
"threshold": {
"description": "Decimal string in token/display units, not base units: \"1000\" means 1000 USDC",
"type": "string"
},
"type": {
"enum": [
"token_balance",
"nft_ownership",
"eas_attestation",
"farcaster_id",
"evm_view_call",
"ratio_to_amount",
"ratio_to_supply",
"erc8004_agent",
"erc7710_delegation"
],
"type": "string"
}
},
"required": [
"type",
"chainId"
],
"type": "object"
},
"maxItems": 10,
"minItems": 1,
"type": "array"
},
"format": {
"description": "Optional ES256 JWT attestation format",
"enum": [
"jwt"
],
"type": "string"
},
"proof": {
"description": "Optional EIP-1186 storage proof; doubles the price",
"enum": [
"merkle"
],
"type": "string"
},
"wallet": {
"description": "EVM address (0x…); non-EVM wallets via solanaWallet/xrplWallet/bitcoinWallet/tronWallet/stellarWallet/suiWallet",
"type": "string"
}
},
"required": [
"wallet",
"conditions"
],
"type": "object"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
}Use it
curl
curl "https://api.insumermodel.com/v1/attest" # -> 402 Payment Required, accepts[] lists how to pay # retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid
JavaScript
const res = await fetch("https://api.insumermodel.com/v1/attest");
if (res.status === 402) {
const { accepts } = await res.json();
// pay one of accepts[] via an x402 client, then retry with the payment header
}Python
import httpx
res = httpx.get("https://api.insumermodel.com/v1/attest")
if res.status_code == 402:
accepts = res.json()["accepts"]
# pay one of accepts[] via an x402 client, then retry with the payment headerMachine-readable
Everything on this page is also available as clean JSON at /resources/2197.json, and this resource appears in /discovery/resources and /discovery/search.