Vextorium
87 pay-per-call data APIs for AI agents: Solana and EVM on-chain data, tokenized stocks, DeFi, FX, validation and AI text tools. Pay in USDC via x402.
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 0.004 USDC on Base to 0xb9f0…71aCf. The signed payment is good for 5 minutes.
- Paid to
- 0xb9f0…71aCf
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 4000 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
- HcjfmZ…t3pz2
- Token contract
- EPjFWd…TDt1v
- 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
- 0xb9f0…71aCf
- 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
- 0xb9f0…71aCf
- Token contract
- 0x0b2C…7Ff85
- Payment window
- 168 hours
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
- 0xb9f0…71aCf
- Token contract
- 0x3600…00000
- Payment window
- 168 hours
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xb9f06D2734B7E9D7b21B64C4D8b95bd774b71aCf",
"amount": "4000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "4ZHcGaij9ktYqm9dNvMSMLsbT5D7BUrXDEzQGVH5h3Q6"
},
"payTo": "HcjfmZLgWRZzwj4deEiS7pewc4KBYSw39mW5nTyt3pz2",
"amount": "4000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
},
{
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xb9f06D2734B7E9D7b21B64C4D8b95bd774b71aCf",
"amount": "4000",
"scheme": "exact",
"network": "eip155:137",
"maxTimeoutSeconds": 300
},
{
"asset": "0x0b2C639c533813f4Aa9D7837CAf62653d097Ff85",
"extra": {
"name": "GatewayWalletBatched",
"assets": [
{
"symbol": "USDC",
"address": "0x0b2c639c533813f4aa9d7837caf62653d097ff85",
"decimals": 6
}
],
"version": "1",
"verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee",
"minValiditySeconds": 604800
},
"payTo": "0xb9f06D2734B7E9D7b21B64C4D8b95bd774b71aCf",
"amount": "4000",
"scheme": "exact",
"network": "eip155:10",
"maxTimeoutSeconds": 604900
},
{
"asset": "0x3600000000000000000000000000000000000000",
"extra": {
"name": "GatewayWalletBatched",
"assets": [
{
"symbol": "USDC",
"address": "0x3600000000000000000000000000000000000000",
"decimals": 6
}
],
"version": "1",
"verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee",
"minValiditySeconds": 604800
},
"payTo": "0xb9f06D2734B7E9D7b21B64C4D8b95bd774b71aCf",
"amount": "4000",
"scheme": "exact",
"network": "eip155:5042",
"maxTimeoutSeconds": 604900
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"limite": 10
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"nota": "Comisiones = lo que pagan los usuarios al protocolo. Alta y estable = negocio real. Fuente: DefiLlama.",
"cadena": "todas",
"protocolos": [
{
"categoria": "Stablecoin Issuer",
"protocolo": "Tether",
"cambio_7d_pct": 2.16,
"comisiones_7d_usd": 122438724,
"comisiones_24h_usd": 17646129,
"comisiones_30d_usd": 503767801
},
{
"categoria": "Stablecoin Issuer",
"protocolo": "Circle USDC",
"cambio_7d_pct": 0.8,
"comisiones_7d_usd": 50654947,
"comisiones_24h_usd": 7229424,
"comisiones_30d_usd": 206134684
},
{
"categoria": "Dexs",
"protocolo": "Uniswap V4",
"cambio_7d_pct": 7.04,
"comisiones_7d_usd": 20640542,
"comisiones_24h_usd": 3719213,
"comisiones_30d_usd": 136524298
},
{
"categoria": "Dexs",
"protocolo": "PumpSwap",
"cambio_7d_pct": 9.14,
"comisiones_7d_usd": 30605650,
"comisiones_24h_usd": 3708908,
"comisiones_30d_usd": 105930967
},
{
"categoria": "Prediction Market",
"protocolo": "Polymarket US",
"cambio_7d_pct": 30.43,
"comisiones_7d_usd": 18248745,
"comisiones_24h_usd": 2346079,
"comisiones_30d_usd": 57420039
},
{
"categoria": "Derivatives",
"protocolo": "Hyperliquid Perps",
"cambio_7d_pct": -22.74,
"comisiones_7d_usd": 16033595,
"comisiones_24h_usd": 2252217,
"comisiones_30d_usd": 69766925
},
{
"categoria": "Launchpad",
"protocolo": "pump.fun",
"cambio_7d_pct": 15.89,
"comisiones_7d_usd": 14026904,
"comisiones_24h_usd": 2024455,
"comisiones_30d_usd": 45983581
},
{
"categoria": "Liquid Staking",
"protocolo": "Lido",
"cambio_7d_pct": 5.39,
"comisiones_7d_usd": 12729617,
"comisiones_24h_usd": 1896559,
"comisiones_30d_usd": 50746882
},
{
"categoria": "Launchpad",
"protocolo": "Pons V2",
"cambio_7d_pct": -26.37,
"comisiones_7d_usd": 11541609,
"comisiones_24h_usd": 1838003,
"comisiones_30d_usd": 135018051
},
{
"categoria": "Chain",
"protocolo": "Canton",
"cambio_7d_pct": 15.67,
"comisiones_7d_usd": 12159293,
"comisiones_24h_usd": 1734855,
"comisiones_30d_usd": 48857312
}
]
}
}
},
"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": [],
"properties": {
"cadena": {
"type": "string",
"description": "Filter by chain, e.g. Ethereum, Base, Solana, Arbitrum (optional)"
},
"limite": {
"type": "integer",
"maximum": 50,
"minimum": 1,
"description": "Number of protocols (1-50, default 15)"
}
}
},
"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",
"null"
],
"properties": {
"nota": {
"type": [
"string",
"null"
]
},
"cadena": {
"type": [
"string",
"null"
]
},
"protocolos": {
"type": [
"array",
"null"
],
"items": {
"type": [
"null",
"object"
],
"properties": {
"categoria": {
"type": [
"null",
"string"
]
},
"protocolo": {
"type": [
"null",
"string"
]
},
"cambio_7d_pct": {
"type": [
"null",
"number"
]
},
"comisiones_7d_usd": {
"type": [
"null",
"number"
]
},
"comisiones_24h_usd": {
"type": [
"null",
"number"
]
},
"comisiones_30d_usd": {
"type": [
"null",
"number"
]
}
}
}
}
}
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-10-06 02:03Z
- Last indexed by Roundhouse
- 2026-10-17 07:40Z
- Last enriched (probe, favicon, geo)
- 2026-09-30 11:15Z
- x402 version
- 2
- Max timeout
- 300s
- Liveness probe
- HTTP 200
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. 26 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 Vextorium 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=Vextorium' 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://api.vextorium.com/defi-comisiones-pago, 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.