Verify whether delivered work satisfied explicit acceptance criteria
Verify whether delivered work satisfied explicit acceptance criteria. One call, pay per verification, no account. Returns per-unit accepted/rejected counts, earned value, and a signed Outcome Receipt.
Asked 1.7x its listed price for its own exampleour last check, 2026-09-24
1 of 1checks answered this week
2420 msmedian answer time
$0.006listed price per call
$0.0101price 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://spoolis.com/api/v1/verify/x402
| Category | Everything else |
|---|---|
| Provider host | spoolis.com |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 5 from 2 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-09-24 | valid payment request | 402 | $0.0101 | 2420 ms |
Example input (from the provider)
{
"body": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"additionalProperties": false,
"properties": {
"conditions": {
"oneOf": [
{
"maxLength": 2000,
"minLength": 1,
"type": "string"
},
{
"items": {
"additionalProperties": false,
"properties": {
"description": {
"maxLength": 2000,
"minLength": 1,
"type": "string"
},
"deterministic_check": {
"type": "object"
}
},
"required": [
"description",
"deterministic_check"
],
"type": "object"
},
"maxItems": 50,
"minItems": 1,
"type": "array"
}
]
},
"evidence": {
"additionalProperties": false,
"properties": {
"payload": {},
"provenance": {
"enum": [
"api_response",
"uploaded_json",
"url_fetch"
],
"type": "string"
},
"rows": {
"items": {
"type": "object"
},
"maxItems": 100000,
"type": "array"
},
"type": {
"enum": [
"dataset",
"text",
"url"
],
"type": "string"
}
},
"required": [
"type",
"provenance"
],
"type": "object"
},
"idempotency_key": {
"maxLength": 128,
"minLength": 1,
"type": "string"
},
"max_amount_cents": {
"maximum": 9007199254740991,
"minimum": 1,
"type": "integer"
},
"settlement": {
"default": "external",
"enum": [
"external",
"managed"
],
"type": "string"
},
"unit": {
"additionalProperties": false,
"properties": {
"total_units": {
"maximum": 100000,
"minimum": 1,
"type": "integer"
},
"unit_amount_cents": {
"maximum": 9007199254740991,
"minimum": 1,
"type": "integer"
}
},
"required": [
"total_units",
"unit_amount_cents"
],
"type": "object"
}
},
"required": [
"conditions",
"max_amount_cents",
"evidence"
],
"type": "object"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": true,
"properties": {
"body": {
"type": "object"
},
"bodyType": {
"enum": [
"json"
],
"type": "string"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"accepted": {
"minimum": 0,
"type": "integer"
},
"earned_cents": {
"minimum": 0,
"type": "integer"
},
"receipt_url": {
"type": "string"
},
"rejected": {
"minimum": 0,
"type": "integer"
},
"rejections": {
"items": {
"properties": {
"reason": {
"type": "string"
},
"unit": {
"type": "integer"
}
},
"type": "object"
},
"type": "array"
},
"spool_id": {
"type": "string"
},
"terminal": {
"type": "boolean"
},
"uncertain": {
"minimum": 0,
"type": "integer"
},
"unit_results": {
"items": {
"properties": {
"reasons": {
"items": {
"type": "string"
},
"type": "array"
},
"unit": {
"type": "integer"
},
"verdict": {
"enum": [
"pass",
"fail",
"uncertain"
],
"type": "string"
}
},
"type": "object"
},
"type": "array"
}
},
"required": [
"spool_id",
"accepted",
"rejected",
"terminal"
],
"type": "object"
},
"type": {
"const": "application/json",
"type": "string"
}
},
"required": [
"type",
"example"
],
"type": "object"
}
},
"required": [
"input",
"output"
],
"type": "object"
}