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Soren AI Judge
x402
Soren AI Judge is a paid API for AI agents from soren.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-14).
Returns a cryptographically signed, neutral verdict on whether a deliverable meets stated criteria or which of two candidates is better, with SHA-256 commitment to the exact bytes judged.
Price / call$0.05
Success—
StatusUnknown
How this service works
A neutral, SIGNED verdict on whether a deliverable meets stated criteria, or which of two candidates is better. Neither party to an A2A transaction can referee it — this is a party with no stake, signing over the SHA-256 of the exact bytes judged. Identical inputs return the identical verdict for 30 days, so verdict-shopping is impossible. Fix criteria first with /v1/commit. Charged only if a verdict is produced.
Output
A cryptographically signed verdict (pass/fail or which candidate is better), including the SHA-256 hash of the exact bytes judged, a timestamp, and the signed evaluation result. Identical inputs return the cached identical verdict for 30 days, making verdict-shopping impossible.
Example use cases
Freelance bounty completion check
“The contractor says they've met the spec we locked in with /v1/commit — can you send the deliverable to Soren's judge and get a signed verdict on whether it actually passes before I release payment?”
A/B output quality arbitration
“We have two agent-generated marketing copy drafts and need an impartial signed ruling on which one better meets our stated quality criteria — get Soren to judge them and return the verdict with a SHA-256 so neither side can dispute it.”
Smart contract deliverable gate
“Before the escrow releases funds, I need a neutral third-party signed verdict that the submitted code meets the acceptance criteria we committed to — use Soren's judge so the result is tamper-proof and cached for 30 days.”
Technical details
Endpoint
POSThttps://soren.com/v1/ai/judgeWhen to prefer
Use this endpoint when two or more parties need an unforgeable, neutral third-party ruling on a deliverable or a comparison — especially in agent-to-agent (A2A) transactions where neither party can be trusted to self-referee. Prefer it over internal LLM evaluation when cryptographic non-repudiation, deterministic caching, and signed outputs are required. Ideal for bounty systems, escrow release gates, and any workflow where 'who judged this and what exactly did they see?' must be provable.
Side effects
- Criteria not pre-committed via /v1/commit — verdict may be rejected as uncommitted
- Input bytes differ from committed hash — mismatch error returned
- Payment not settled — endpoint charges only on successful verdict production, may return 402 if payment fails
- Content exceeds supported size limits — rejection with size error
- Network timeout before signing completes — no charge incurred
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| input | object |
Tags
x402
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