Jev Structured Evaluation
The autonomous stack for every app and agent.
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 0.001 USDC on Base to 0xE813…C2008. The signed payment is good for 2 minutes.
- Paid to
- 0xE813…C2008
- USD Coin contract
- 0x8335…02913
- Payment window
- 2 minutes
- As published
- 1000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xE813d34C0525E0fBb1e6478B86D40B83603C2008",
"amount": "1000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 120
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"model": "jev-latest",
"state": "My card was charged twice for one order and nobody has replied in three days.",
"questions": {
"route": {
"type": "choice",
"criteria": {
"billing": "payment or charge problems",
"shipping": "delivery problems",
"technical": "application bugs"
},
"instructions": "Route this ticket to a team."
},
"urgency": {
"type": "score",
"criteria": [
"low",
"medium",
"high"
],
"instructions": "How urgent is this ticket?"
},
"needs_review": {
"type": "noul",
"criteria": {
"true": "money, legal, or an unanswered complaint",
"false": "a routine question a bot can close"
},
"instructions": "Does this ticket need a human agent?"
}
}
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"model": "jev-1.13.0",
"usage": {
"input_tokens": 423,
"output_tokens": 70
},
"answers": {
"route": {
"type": "choice",
"choice": "billing",
"confidence": 1,
"probabilities": {
"billing": 1,
"shipping": 0,
"technical": 0
}
},
"urgency": {
"type": "score",
"score": 1.89,
"legend": {
"0": "low",
"1": "medium",
"2": "high"
},
"confidence": 0.83,
"probabilities": {
"0": 0,
"1": 0.11,
"2": 0.89
}
},
"needs_review": {
"noul": 0.94,
"type": "noul"
}
}
}
}
},
"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": [
"state",
"questions"
],
"properties": {
"model": {
"type": "string",
"description": "Jev model id. Defaults to 'jev-latest'."
},
"state": {
"oneOf": [
{
"type": "string"
},
{
"type": "object"
}
],
"description": "The content to evaluate. String, or a JSON object of fields."
},
"questions": {
"type": "object",
"description": "Map of question name -> typed question. Each has a 'type' of 'noul' (true/false), 'choice' (pick one) or 'score' (ordinal scale), an 'instructions' string, and 'criteria'.",
"additionalProperties": {
"type": "object",
"required": [
"type",
"instructions",
"criteria"
],
"properties": {
"type": {
"enum": [
"noul",
"choice",
"score"
],
"type": "string"
},
"criteria": {
"oneOf": [
{
"type": "object"
},
{
"type": "array",
"items": {
"type": "string"
}
}
],
"description": "Object of label -> meaning for 'noul'/'choice'; ordered array of labels for 'score'."
},
"instructions": {
"type": "string"
}
}
}
}
}
},
"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": {
"model": {
"type": "string",
"description": "Resolved Jev model version."
},
"usage": {
"type": "object",
"properties": {
"input_tokens": {
"type": "number"
},
"output_tokens": {
"type": "number"
}
}
},
"answers": {
"type": "object",
"description": "One entry per question asked. 'noul' answers carry a probability; 'choice' answers carry the chosen label, a confidence and per-option probabilities; 'score' answers carry a calibrated score, confidence, legend and per-level probabilities."
}
}
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-09-21 20:46Z
- Last indexed by Roundhouse
- 2026-09-24 10:40Z
- Last enriched (probe, favicon, geo)
- 2026-09-21 19:15Z
- 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
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 3 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 Jev Structured Evaluation 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=Jev%20Structured%20Evaluation' 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://jev-x402.vercel.app/jev, 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.