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ARAKEL Machine Evidence Network – Evidence Bundle
x402
ARAKEL Machine Evidence Network – Evidence Bundle is a paid API for AI agents from proof.arakelproof.space, paid per call via x402, $0.25/call, status unknown (last checked 2026-09-14).
Returns a cryptographically signed machine-readable evidence bundle (OBSERVED, NOT_OBSERVED, or INCONCLUSIVE) from official sources for a given subject or counterparty.
Price / call$0.25
Success—
StatusUnknown
How this service works
Machine-verifiable official-source evidence with free preflight and x402 USDC payments on Base.
Output
A JSON evidence bundle containing: a result field (OBSERVED, NOT_OBSERVED, or INCONCLUSIVE), the source ID consulted (e.g. federal-register), a coverage.sufficient boolean indicating whether the source coverage is adequate for a reliable result, and a cryptographic signature (Ed25519) authenticating the bundle under the arakel.intervalproof.v1 schema.
Example use cases
Vendor onboarding compliance check
“Before we onboard Brightwave Solutions as a vendor, can you get a signed machine evidence bundle from ARAKEL checking whether they appear in the federal register? I need the OBSERVED or NOT_OBSERVED result plus the Ed25519 signature for our compliance team.”
Sanctions and registry due diligence
“Run an ARAKEL evidence check on counterparty 'Nova Capital Partners' across official sources — I need to know if they're listed, not listed, or inconclusive, and I want the signed proof document so our legal team can keep it on file.”
Automated batch counterparty dossier
“I have a list of 10 entities I need to screen before our board meeting — can you use ARAKEL to pull evidence bundles for each of them from official sources and flag which ones come back as NOT_OBSERVED or INCONCLUSIVE?”
Technical details
Endpoint
GEThttps://proof.arakelproof.space/v1/evidence-bundleWhen to prefer
Choose this endpoint when you need a cryptographically signed, machine-verifiable attestation of whether an entity appears in official sources — particularly for compliance, legal, or due diligence workflows where a NOT_OBSERVED proof is as important as an OBSERVED one. Prefer it over manual lookups or generic web searches when you need a signed, schema-versioned artifact (arakel.intervalproof.v1) that downstream systems or auditors can verify programmatically.
Side effects
- Insufficient coverage: source does not cover the queried subject, returns coverage.sufficient = false
- Inconclusive result: subject partially matches records, cannot definitively confirm or deny
- Invalid subject identifier: malformed or unrecognized entity input returns an error
- Source unavailable: official source temporarily offline or not enabled, returns error
- Payment failure: $0.25 USDC not authorized, request rejected before bundle is generated
- Rate or batch limits exceeded: too many concurrent requests rejected
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"detail": "evidence-bundle",
"result": "OBSERVED|NOT_OBSERVED|INCONCLUSIVE",
"schema": "arakel.intervalproof.v1",
"source": {
"id": "federal-register"
},
"coverage": {
"sufficient": true
},
"signature": {
"alg": "Ed25519"
}
}
}Tags
x402
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