decision-questions
Ask up to 20 typed yes/no, multiple-choice or ordinal-scale questions about one shared piece of context in a single call - each answered with a real probability (Jev decision primitives), not generated text. Powered by Jev (TypeSafe System One). $0.001 per call, no OpenRouter or TypeSafe account needed. Try GET /decide/sample.
TradingLiveeip155:8453Exactvia wellknown:x402.agentindex.world
DecisionClassification
Calls · 30d
4→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 32 snapshots so far.
$1.51
Verified settled volume
563 settlements proven x402 by their on-chain EIP-3009 marker.
$0.0010
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
0xb3F32bdfe8D07825BC0D7387295aB1D7559BA69dThe wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Provider
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.
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": "0xb3F32bdfe8D07825BC0D7387295aB1D7559BA69d",
"amount": "1000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://x402.agentindex.world/decide",
"tags": [
"decision",
"classification"
],
"iconUrl": "https://x402.agentindex.world/icon.png",
"mimeType": "application/json",
"description": "Ask up to 20 typed yes/no, multiple-choice or ordinal-scale questions about one shared piece of context in a single call - each answered with a real probability (Jev decision primitives), not generated text. Powered by Jev (TypeSafe System One). $0.001 per call, no OpenRouter or TypeSafe account needed. Try GET /decide/sample.",
"serviceName": "decision-questions"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"state": "A customer wrote: 'The app crashed when I tried to upload a photo larger than 10MB, and I have already been charged for premium.'",
"questions": {
"is_bug": {
"type": "noul",
"criteria": {
"true": "The customer describes broken or unexpected behavior.",
"false": "The customer is asking a question or requesting a feature."
},
"instructions": "Is the customer reporting a software defect?"
}
}
},
"type": "http",
"method": "GET",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"answers": {
"is_bug": {
"noul": 0.96,
"type": "noul"
}
},
"x402_receipt": {
"upstream": "decision",
"latency_ms": 468,
"model_served": "jev",
"price_paid_usdc": 0
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"required": [
"state",
"questions"
],
"properties": {
"state": {
"description": "Shared context the questions are asked about - a string, or a JSON object/array. Capped at 8000 tokens."
},
"questions": {
"type": "object",
"description": "Up to 20 typed questions, keyed by a name you choose. Each needs type ('noul', 'choice' or 'score'), instructions, and criteria (shape depends on type - see /decide/sample)."
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"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": [
"answers"
],
"properties": {
"answers": {
"type": "object",
"description": "One answer per question key, shaped by its type: noul (probability of yes), choice (selected option, per-option probabilities, confidence), or score (position, per-level probabilities, confidence, legend)."
},
"x402_receipt": {
"type": "object",
"description": "Billing and provenance receipt for this call."
}
}
}
}
}
}
}
}
},
"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.
0.001USDC≈ $0.001 USD
on Base · exact scheme
Pay 0.001 USDC on Base to 0xb3F3…BA69d. The signed payment is good for 5 minutes.
- Paid to
- 0xb3F3…BA69d
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 1000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xb3F32bdfe8D07825BC0D7387295aB1D7559BA69d",
"price": "$0.001",
"amount": "1000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"state": "A customer wrote: 'The app crashed when I tried to upload a photo larger than 10MB, and I have already been charged for premium.'",
"questions": {
"is_bug": {
"type": "noul",
"criteria": {
"true": "The customer describes broken or unexpected behavior.",
"false": "The customer is asking a question or requesting a feature."
},
"instructions": "Is the customer reporting a software defect?"
}
}
},
"type": "http",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"answers": {
"is_bug": {
"noul": 0.96,
"type": "noul"
}
},
"x402_receipt": {
"upstream": "decision",
"latency_ms": 468,
"model_served": "jev",
"price_paid_usdc": 0
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"required": [
"state",
"questions"
],
"properties": {
"state": {
"description": "Shared context the questions are asked about - a string, or a JSON object/array. Capped at 8000 tokens."
},
"questions": {
"type": "object",
"description": "Up to 20 typed questions, keyed by a name you choose. Each needs type ('noul', 'choice' or 'score'), instructions, and criteria (shape depends on type - see /decide/sample)."
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"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": [
"answers"
],
"properties": {
"answers": {
"type": "object",
"description": "One answer per question key, shaped by its type: noul (probability of yes), choice (selected option, per-option probabilities, confidence), or score (position, per-level probabilities, confidence, legend)."
},
"x402_receipt": {
"type": "object",
"description": "Billing and provenance receipt for this call."
}
}
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- —
- Last indexed by Roundhouse
- 2026-10-18 13:15Z
- Last enriched (probe, favicon, geo)
- 2026-10-02 22:45Z
- x402 version
- —
- 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
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 decision-questions 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=decision-questions' 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://x402.agentindex.world/decide, 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.