Reasoning Verification
api.thoughtproof.ai
Adversarial multi-model critique. Independent models evaluate → red-team critic challenges → synthesizer decides.
Fast
Quick checks, low-stakes decisions
$0.008
Standard default
Production verification
$0.02
Deep
High-stakes, maximum scrutiny
$0.08
Payment: x402 micropayment (USDC)
Plan-Level Verification
verify.thoughtproof.ai
Enterprise cascade verification. Checks agent output against plan or evidence. 0 false allows observed in a 120-case validation set (Standard tier).
Evidence note →
Standard default
3-stage cascade · ~5s typical
$0.04
Thorough
4-stage cascade · ~15s typical
$0.08
Auth: X-API-Key header
Sentinel
sentinel.thoughtproof.ai
Pre-execution checkpoint. Verify before every irreversible action. Fail-closed: both BLOCK and UNCERTAIN stop execution.
Checkpoint
1-stage · 3–5s · high-volume
$0.005
Standard default
2-stage cascade · ~13s
$0.008
Auth: X-API-Key or x402 micropayment
Decision Quality Layer
dql.thoughtproof.ai
Five-axis decision quality scoring. Same endpoint for humans and agents — prepaid packs or pay-per-call.
Per live verify
Flat $0.05 independent of axes. Prepaid packs (Starter 200 / Plus 1,000), one-time 5-credit trial, or PAYG after credits.
$0.05
USDC · x402
Pay-per-call on Base. No prepaid key required — agents hit POST /dql/verify and settle in USDC.
live
Auth: API key · Payment:
Stripe or
x402 (Base USDC) ·
Get a key