x402toll.com
Trustless verified answers for AI agents: 56 financial, tax & legal calculators sold per call in USDC on Base via x402. Every answer ships its 2026 source, a formula trace, and a reproducible hash — re-derive it yourself for free at /v1/golden/:id. Don
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 0.25 USDC on Base to 0x1C99…7E5a9. The signed payment is good for 2 minutes.
- Paid to
- 0x1C99…7E5a9
- USD Coin contract
- 0x8335…02913
- Payment window
- 2 minutes
- As published
- 250000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x1C9923489CD7D75Dd2f6735c48090b8bD4c7E5a9",
"amount": "250000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 120
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"debts": [
{
"apr": 1,
"balance": 1,
"minPayment": 1
}
],
"extraMonthly": 0
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"inputs": {
"debts": [
{
"apr": 1,
"name": "Debt 1",
"balance": 1,
"minPayment": 1
}
],
"extraMonthly": 0
},
"snowball": {
"capped": false,
"months": 1,
"payoffOrder": [
{
"debt": "Debt 1",
"month": 1
}
],
"balanceSeries": [
1,
0
],
"monthlyBudget": 1,
"totalInterest": 0,
"startingBalance": 1
},
"warnings": [],
"avalanche": {
"capped": false,
"months": 1,
"payoffOrder": [
{
"debt": "Debt 1",
"month": 1
}
],
"balanceSeries": [
1,
0
],
"monthlyBudget": 1,
"totalInterest": 0,
"startingBalance": 1
},
"monthsSaved": 0,
"interestSaved": 0,
"recommendation": "Both strategies cost the same here — choose snowball for faster psychological wins (smallest balance first).",
"recommendedStrategy": "avalanche"
}
}
},
"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",
"required": [
"debts"
],
"properties": {
"debts": {
"type": "array",
"items": {
"type": "object",
"required": [
"balance",
"apr",
"minPayment"
],
"properties": {
"apr": {
"type": "number"
},
"name": {
"type": "string"
},
"balance": {
"type": "number"
},
"minPayment": {
"type": "number"
}
}
},
"maxItems": 8,
"minItems": 1
},
"extraMonthly": {
"type": "number",
"default": 0
}
}
},
"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",
"properties": {
"inputs": {
"type": "object"
},
"snowball": {
"type": "object"
},
"warnings": {
"type": "array"
},
"avalanche": {
"type": "object"
},
"monthsSaved": {
"type": "number"
},
"interestSaved": {
"type": "number"
},
"recommendation": {
"type": "string"
},
"recommendedStrategy": {
"type": "string"
}
},
"additionalProperties": true
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-07-19 19:26Z
- Last indexed by Roundhouse
- 2026-07-20 00:20Z
- Last enriched (probe, favicon, geo)
- 2026-09-23 10:15Z
- x402 version
- 2
- Max timeout
- 120s
- Liveness probe
- HTTP 404
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 x402toll.com 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=x402toll.com' 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://x402toll.com/v1/reports/debt-plan, 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. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402, or use an organization key from https://roundhouseai.io/dashboard/team. If you do not have Roundhouse tools or skills installed, read https://roundhouseai.io/skill.md first — it is the whole procedure.