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 on Base)
Plan-Level Verification
verify.thoughtproof.ai
Enterprise cascade verification. Checks agent output against plan or evidence. 98.1% accuracy, 0 false ALLOWs.
Standard default
3-stage cascade · <2s latency
$0.04
Thorough
4-stage cascade · <3s latency
$0.08
Auth: API Key X-API-Key: tp_v2_...
Sentinel
sentinel.thoughtproof.ai
Pre-execution checkpoint. Verify before every irreversible action. 4 modes, 0 false ALLOWs.
Checkpoint
1-stage · 0.9s · high-volume
$0.003
Standard default
2-stage cascade · 1.3s
$0.005
Auth: X-API-Key or x402 micropayment