Get a signed pass/fail verdict on a deliverable against your acceptance spec, sy
Get a signed pass/fail verdict on a deliverable against your acceptance spec, synchronously. Deterministic checks only: JSON Schema conformance, JSON path assertions, sha256 content hash, regex, length bounds. Returns an Ed25519 signed verdict document any third party can verify offline; suitable as evidence for escrow release. $1.00 per verdict, no account.
Answeringour last check, 2026-09-24
1 of 1checks answered this week
259 msmedian answer time
$1.00listed price per call
$1.00price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://umpire.vimabrosta.com/v1/verdicts/basic
| Category | Code and developer |
|---|---|
| Provider host | umpire.vimabrosta.com |
| Networks | eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-09-24 | valid payment request | 402 | $1.00 | 259 ms |
Example input (from the provider)
{
"body": {
"deliverable": {
"json": {
"title": "Quarterly summary"
},
"text": "Quarterly summary: revenue up 4 percent."
},
"job_ref": "job-42",
"spec": {
"checks": [
{
"schema": {
"properties": {
"title": {
"type": "string"
}
},
"required": [
"title"
],
"type": "object"
},
"type": "json_schema"
},
{
"expect": "match",
"pattern": "^[A-Z]",
"type": "regex"
}
]
}
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"deliverable": {
"properties": {
"json": {},
"text": {
"type": "string"
}
},
"type": "object"
},
"job_ref": {
"maxLength": 200,
"type": "string"
},
"spec": {
"properties": {
"checks": {
"items": {
"properties": {
"type": {
"enum": [
"json_schema",
"json_path",
"content_hash",
"regex",
"length",
"url_probe"
],
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
},
"maxItems": 10,
"minItems": 1,
"type": "array"
}
},
"required": [
"checks"
],
"type": "object"
},
"webhook_url": {
"format": "uri",
"type": "string"
}
},
"required": [
"spec"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}