agent402.tools
NFT + wallet snapshot: NFT holdings, native balance, and ETH price for a given address in one call. NFT portfolio skill pack: one x402 payment runs 3 underlying tools (nft-holdings, wallet-balance, crypto-price); partial-success per step.
TradingLiveeip155:8453Exactvia wellknown:settled.tools
Calls · 30d
9↓ 10%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 32 snapshots so far.
$137.04
Verified settled volume
A floor: summed over 5,000 of up to 52,600 indexed settlements. The exact verified count is not computed for a wallet this size.
$0.0050
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
0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Provider
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": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"outputSchema": {
"type": "object",
"required": [
"pack",
"args",
"steps",
"summary"
],
"properties": {
"args": {
"type": "object",
"properties": {
"address": {
"type": "string"
}
}
},
"pack": {
"type": "string"
},
"steps": {
"type": "array",
"items": {
"type": "object",
"properties": {
"ok": {
"type": "boolean"
},
"slug": {
"type": "string"
},
"result": {
"type": "object"
}
}
}
},
"summary": {
"type": "string"
}
}
},
"maxTimeoutSeconds": 300
},
{
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
"amount": "5000",
"scheme": "exact",
"network": "eip155:137",
"maxTimeoutSeconds": 300
},
{
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
"amount": "5000",
"scheme": "exact",
"network": "eip155:42161",
"maxTimeoutSeconds": 300
},
{
"asset": "0x754704Bc059F8C67012fEd69BC8A327a5aafb603",
"extra": {
"name": "USDC",
"version": "2"
},
"payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
"amount": "5000",
"scheme": "exact",
"network": "eip155:143",
"maxTimeoutSeconds": 300
},
{
"asset": "0xB97EF9Ef8734C71904D8002F8b6Bc66Dd9c48a6E",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
"amount": "5000",
"scheme": "exact",
"network": "eip155:43114",
"maxTimeoutSeconds": 300
},
{
"asset": "0xe15fC38F6D8c56aF07bbCBe3BAf5708A2Bf42392",
"extra": {
"name": "USDC",
"version": "2"
},
"payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
"amount": "5000",
"scheme": "exact",
"network": "eip155:1329",
"maxTimeoutSeconds": 300
},
{
"asset": "0x0b2C639c533813f4Aa9D7837CAf62653d097Ff85",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
"amount": "6000",
"scheme": "exact",
"network": "eip155:10",
"maxTimeoutSeconds": 300
},
{
"asset": "0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168",
"extra": {
"name": "Global Dollar",
"version": "1"
},
"payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
"amount": "5000",
"scheme": "exact",
"network": "eip155:4663",
"maxTimeoutSeconds": 300
},
{
"asset": "0xcebA9300f2b948710d2653dD7B07f33A8B32118C",
"extra": {
"name": "USDC",
"version": "2"
},
"payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
"amount": "5000",
"scheme": "exact",
"network": "eip155:42220",
"maxTimeoutSeconds": 300
},
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"facilitatorAddress": "0x2A89407a98A0732b7fD578c4E156B7166540EB5A",
"assetTransferMethod": "permit2"
},
"payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
"amount": "5000",
"scheme": "upto",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb"
},
"payTo": "J7aN3PLJnTCF5qpEnvJHJsnCjcGuqC2rYtEM8Gv3xwg",
"amount": "5000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
},
{
"asset": "CCW67TSZV3SSS2HXMBQ5JFGCKJNXKZM7UQUWUZPUTHXSTZLEO7SJMI75",
"extra": {
"areFeesSponsored": true
},
"payTo": "GDNJXCKW7ZM7GEEVP674TWPU26YJNBQ2FI4ZIPRKTPTNUEJMDHFJWWRL",
"amount": "50000",
"scheme": "exact",
"network": "stellar:pubnet",
"maxTimeoutSeconds": 300
},
{
"asset": "31566704",
"extra": {
"tag": "x402-global-challenge",
"feePayer": "ZMFK2OI7ZBD2U27ISERZC4S6LKM6WMFJPZQ4MYNJDZ2VNBNMBA67RA22AA"
},
"payTo": "C7IIHG7SPLPZ5H7ZT6HW3UV2OQMQQE6Y2HBNGZXSLRJULE42BEE2OY2XIE",
"amount": "5000",
"scheme": "exact",
"network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://agent402.tools/api/skill/nft-portfolio",
"tags": [
"skill-pack",
"workflow",
"nft-portfolio",
"agents",
"x402"
],
"iconUrl": "https://agent402.tools/favicon.ico",
"mimeType": "application/json",
"description": "NFT + wallet snapshot: NFT holdings, native balance, and ETH price for a given address in one call. NFT portfolio skill pack: one x402 payment runs 3 underlying tools (nft-holdings, wallet-balance, crypto-price); partial-success per step.",
"serviceName": "Skill: NFT portfolio"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"address": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"args": {
"address": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"
},
"pack": "nft-portfolio",
"steps": [
{
"ok": true,
"slug": "nft-holdings",
"result": {}
},
{
"ok": true,
"slug": "wallet-balance",
"result": {}
},
{
"ok": true,
"slug": "crypto-price",
"result": {}
}
],
"summary": "3/3 steps succeeded"
}
}
},
"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": {
"required": [
"address"
],
"properties": {
"address": {
"type": "string",
"description": "Wallet address (0x…)"
}
}
},
"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",
"required": [
"pack",
"args",
"steps",
"summary"
],
"properties": {
"args": {
"type": "object",
"properties": {
"address": {
"type": "string"
}
}
},
"pack": {
"type": "string"
},
"steps": {
"type": "array",
"items": {
"type": "object",
"properties": {
"ok": {
"type": "boolean"
},
"slug": {
"type": "string"
},
"result": {
"type": "object"
}
}
}
},
"summary": {
"type": "string"
}
}
}
}
}
}
}
},
"builder-code": {
"info": {
"a": "bc_b4aw4uzd"
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"a": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "App builder code"
},
"s": {
"type": "array",
"items": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$"
},
"maxItems": 11,
"description": "Service builder codes"
},
"w": {
"type": "string",
"pattern": "^[a-z0-9_]{1,32}$",
"description": "Wallet builder code"
}
},
"additionalProperties": false
}
},
"payment-identifier": {
"info": {
"required": false
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"required"
],
"properties": {
"id": {
"type": "string",
"pattern": "^[a-zA-Z0-9_-]+$",
"maxLength": 128,
"minLength": 16
},
"required": {
"type": "boolean"
}
}
}
}
},
"x402Version": 2
}Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
0.005USDC≈ $0.005 USD
on Base · exact scheme
Pay 0.005 USDC on Base to 0xaBF4…2a9D0. The signed payment is good for 1 minute.
- Paid to
- 0xaBF4…2a9D0
- USD Coin contract
- 0x8335…02913
- Payment window
- 1 minute
- As published
- 5000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxAmountRequired": "5000",
"maxTimeoutSeconds": 60
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"address": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"args": {
"address": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"
},
"pack": "nft-portfolio",
"steps": [
{
"ok": true,
"slug": "nft-holdings",
"result": {}
},
{
"ok": true,
"slug": "wallet-balance",
"result": {}
},
{
"ok": true,
"slug": "crypto-price",
"result": {}
}
],
"summary": "3/3 steps succeeded"
}
}
}
}
}Provenance
- Seen in the source catalog
- —
- Last indexed by Roundhouse
- 2026-10-22 18:16Z
- Last enriched (probe, favicon, geo)
- 2026-10-13 20:16Z
- 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
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 32 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service agent402.tools 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=agent402.tools' 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://agent402.tools/api/skill/nft-portfolio, 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.