NO
Research · x402 · early usage
Evaluate a claim or question against one supplied HTML or PDF source and return anchore…
Evaluate a claim or question against one supplied HTML or PDF source and return anchored evidence.
by evidence-verdict-production.up.railway.app · discovered, not yet claimed by its owner · updated 2026-10-08
30d calls1
30d payers1
MethodPOST
Outputjson
Mirrored from Coinbase's public x402 Bazaar. The description is the provider's own text and has not been reviewed here; the payment requirements are copied as published.
What it does
Evaluate a claim or question against one supplied HTML or PDF source and return anchored evidence.
Tags: evidence · verification · research · pdf · html · bazaar
Call contract
- Method
- POST
- Input
- json
- Output
- json
- Last paid call
- 2026-10-08
Input example from Bazaar metadata
{
"claim": "Company X reported $42 million in 2025 revenue.",
"source_url": "https://example.com/report.pdf"
}Output example
{
"answer": "The source contains evidence that supports the submitted statement.",
"confidence": 0.97,
"contradictions": [],
"evidence": [
{
"location": {
"anchor": "pdf:page:17:text:3",
"kind": "pdf",
"page": 17,
"section": null,
"text_index": null
},
"text": "Revenue was $42 million in 2025."
}
],
"request_fingerprint": "1111111111111111111111111111111111111111111111111111111111111111",
"schema_version": "1.0",
"source": {
"canonical_url": "https://example.com/report.pdf",
"content_type": "application/pdf",
"final_url": "https://example.com/report.pdf",
"published_at": "2026-02-01",
"requested_url": "https://example.com/report.pdf",
"retrieved_at": "2026-10-07T12:00:00Z",
"source_fingerprint": "0000000000000000000000000000000000000000000000000000000000000000",
"title": "2025 Annual Report"
},
"verdict": "SUPPORTED"
}Use with an agent
- Discover. Agents find this listing with
GET https://bazaar.saylorinnovations.com/discovery/search?query=…, the MCP toolsearch_resources, or/discovery/resources. - Inspect. Fetch
/resources/42674.jsonfor the price and payment options. - Pay. Call
GET https://evidence-verdict-production.up.railway.app/v1/evidence/verdict. The provider answers402with its payment requirements. An x402 client signs one of the options below and retries withPAYMENT-SIGNATURE. - Execute. The provider returns
200with the data. Agent Bazaar is not in the request path and never sees your payment.
For humans
You don't need an account or an API key; you need a wallet holding a small amount of USDC on Base, and an x402-capable client (see the examples below). Call the endpoint unpaid first to see exactly what it asks for.
Pricing & payment
- Price
- $0.01 / request
- Protocol
- x402 v2
- Auth
- No account or API key. Pay per request.
- Networks
- Base
- Demand
- 1 calls · 1 unique payers in 30d (public x402 Bazaar data)
x402 payment requirements
| Scheme | Network | Asset | Amount | Pay to | Timeout |
|---|---|---|---|---|---|
| exact | Base eip155:8453 | USDC | $0.01 | 0xeadeAF18F0AdCc1E96Ae00E5960D706447602566 | 300s |
accepts[] (raw JSON)
[
{
"scheme": "exact",
"network": "eip155:8453",
"payTo": "0xeadeAF18F0AdCc1E96Ae00E5960D706447602566",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "10000",
"amountUsd": 0.01,
"maxTimeoutSeconds": 300
}
]Schemas
Output schema (JSON Schema)
{
"properties": {
"example": {
"additionalProperties": false,
"properties": {
"answer": {
"title": "Answer",
"type": "string"
},
"confidence": {
"maximum": 1,
"minimum": 0,
"title": "Confidence",
"type": "number"
},
"contradictions": {
"items": {
"additionalProperties": false,
"properties": {
"location": {
"additionalProperties": false,
"properties": {
"anchor": {
"title": "Anchor",
"type": "string"
},
"kind": {
"enum": [
"pdf",
"html"
],
"title": "Kind",
"type": "string"
},
"page": {
"anyOf": [
{
"type": "integer"
},
{
"type": "null"
}
],
"default": null,
"title": "Page"
},
"section": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
],
"default": null,
"title": "Section"
},
"text_index": {
"anyOf": [
{
"type": "integer"
},
{
"type": "null"
}
],
"default": null,
"title": "Text Index"
}
},
"required": [
"kind",
"anchor"
],
"title": "EvidenceLocation",
"type": "object"
},
"text": {
"title": "Text",
"type": "string"
}
},
"required": [
"text",
"location"
],
"title": "EvidenceExcerpt",
"type": "object"
},
"title": "Contradictions",
"type": "array"
},
"evidence": {
"items": {
"additionalProperties": false,
"properties": {
"location": {
"additionalProperties": false,
"properties": {
"anchor": {
"title": "Anchor",
"type": "string"
},
"kind": {
"enum": [
"pdf",
"html"
],
"title": "Kind",
"type": "string"
},
"page": {
"anyOf": [
{
"type": "integer"
},
{
"type": "null"
}
],
"default": null,
"title": "Page"
},
"section": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
],
"default": null,
"title": "Section"
},
"text_index": {
"anyOf": [
{
"type": "integer"
},
{
"type": "null"
}
],
"default": null,
"title": "Text Index"
}
},
"required": [
"kind",
"anchor"
],
"title": "EvidenceLocation",
"type": "object"
},
"text": {
"title": "Text",
"type": "string"
}
},
"required": [
"text",
"location"
],
"title": "EvidenceExcerpt",
"type": "object"
},
"title": "Evidence",
"type": "array"
},
"request_fingerprint": {
"title": "Request Fingerprint",
"type": "string"
},
"schema_version": {
"const": "1.0",
"default": "1.0",
"title": "Schema Version",
"type": "string"
},
"source": {
"anyOf": [
{
"additionalProperties": false,
"properties": {
"canonical_url": {
"title": "Canonical Url",
"type": "string"
},
"content_type": {
"enum": [
"text/html",
"application/pdf"
],
"title": "Content Type",
"type": "string"
},
"final_url": {
"title": "Final Url",
"type": "string"
},
"published_at": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
],
"title": "Published At"
},
"requested_url": {
"title": "Requested Url",
"type": "string"
},
"retrieved_at": {
"format": "date-time",
"title": "Retrieved At",
"type": "string"
},
"source_fingerprint": {
"title": "Source Fingerprint",
"type": "string"
},
"title": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
],
"title": "Title"
}
},
"required": [
"requested_url",
"final_url",
"canonical_url",
"title",
"published_at",
"retrieved_at",
"content_type",
"source_fingerprint"
],
"title": "SourceMetadata",
"type": "object"
},
{
"type": "null"
}
]
},
"verdict": {
"enum": [
"SUPPORTED",
"CONTRADICTED",
"PARTIAL",
"NOT_FOUND",
"UNVERIFIABLE"
],
"title": "Verdict",
"type": "string"
}
},
"required": [
"verdict",
"confidence",
"answer",
"evidence",
"contradictions",
"source",
"request_fingerprint"
],
"title": "VerdictResponse",
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}Example shape — generated from the schema, not a captured live response
{
"example": {
"answer": "string",
"confidence": 0,
"contradictions": [
{
"location": {
"anchor": "string",
"kind": "pdf",
"page": null,
"section": null,
"text_index": null
},
"text": "string"
}
],
"evidence": [
{
"location": {
"anchor": "string",
"kind": "pdf",
"page": null,
"section": null,
"text_index": null
},
"text": "string"
}
],
"request_fingerprint": "string",
"schema_version": "1.0",
"source": null,
"verdict": "SUPPORTED"
},
"type": "string"
}Examples
curl
curl "https://evidence-verdict-production.up.railway.app/v1/evidence/verdict"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paidJavaScript
const res = await fetch("https://evidence-verdict-production.up.railway.app/v1/evidence/verdict");
if (res.status === 402) {
const { accepts } = await res.json();
// pay one of accepts[] via an x402 client, then retry with the payment header
}Python
import httpx
res = httpx.get("https://evidence-verdict-production.up.railway.app/v1/evidence/verdict")
if res.status_code == 402:
accepts = res.json()["accepts"]
# pay one of accepts[] via an x402 client, then retry with the payment headerDetails
- Provider
- evidence-verdict-production.up.railway.app
- Endpoint
- https://evidence-verdict-production.up.railway.app/v1/evidence/verdict
- Machine-readable
/resources/42674.json