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MCX Ventures Adversarial Verification — Standard Tier
x402
MCX Ventures Adversarial Verification — Standard Tier is a paid API for AI agents from api.mcx-ventures.com, paid per call via x402, $1.5/call, status unknown (last checked 2026-09-15).
Runs a two-stage adversarial verification (Skeptic critic + Verifier) on a submitted text payload to stress-test and validate its claims or content.
Price / call$1.5
Success—
StatusUnknown
How this service works
Adversarial verification, standard tier — Skeptic + Verifier
Output
Returns a structured adversarial analysis containing a Skeptic-stage critique identifying weaknesses, contradictions, or unsupported claims in the submitted payload, followed by a Verifier-stage assessment that evaluates or rebuts the skeptic's challenges — giving the caller a two-perspective stress-test of the content's validity.
Example use cases
Stress-testing a research claim
“Can you adversarially verify this claim I'm about to publish: 'Intermittent fasting reduces all-cause mortality by 15% according to a 2023 meta-analysis'? I want both the skeptic critique and the verifier's assessment.”
Validating a business proposal argument
“Run the standard skeptic-plus-verifier check on the key argument in my investor pitch: 'Our AI-driven logistics platform cuts delivery costs by 30% with no reduction in service quality.' I need to know where the weak points are before I present.”
Pre-publication content integrity check
“Before I post this policy brief, put this conclusion through your standard adversarial verification — Skeptic and Verifier both — so I can catch any unsupported claims: 'Carbon taxes have demonstrably reduced industrial emissions in every country where they have been implemented.'”
Technical details
Endpoint
POSThttps://api.mcx-ventures.com/v2/verify/standardWhen to prefer
Choose this standard-tier endpoint over the basic tier when you need both a Skeptic critique AND a Verifier follow-up — i.e., when you want adversarial stress-testing plus a second-pass assessment of the critique itself, not just a single-pass skeptical read. Prefer this over general-purpose LLM fact-checking when you need a structured, reproducible two-stage adversarial pipeline with a consistent API contract.
Side effects
- Missing or empty 'payload' field returns a 400 validation error
- Payment not included or insufficient USDC triggers a 402 Payment Required response
- Submitting a non-string payload type may cause schema rejection
- Overly large payloads may exceed processing limits and return a 413 or timeout
- Malformed JSON body results in a 400 parse error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
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