The agentic payment stack knows WHO paid, WHEN, and HOW MUCH. But when an AI agent delivers work, who checks if it's actually correct before the escrow releases?
Billions are being invested in agent infrastructure. Here's what every layer does — and what's missing.
Provider calls submit(jobId, deliverable) on the ERC-8183 contract. The deliverable hash points to the actual output (IPFS, Arweave, or URL).
Our off-chain service fetches the deliverable and runs multi-model verification: 3+ independent AI models evaluate the output. No single model can game the consensus.
The Model Diversity Index (MDI) measures real agreement across diverse models. High MDI → complete() → provider gets paid. Low MDI → reject() → client gets refund.
The Epistemic Block hash is recorded on-chain. Full verification proof is available off-chain via IPFS. Anyone can audit why a job was completed or rejected.
A single AI checking another AI's work is like the student grading their own exam.
3+ models from different providers (Anthropic, OpenAI, DeepSeek, xAI). Different training data, different failure modes.
When one model hallucinates, others catch it. Disagreement is a signal, not noise. MDI quantifies genuine consensus.
To fool the evaluator, an attacker must simultaneously compromise 3+ models from different providers. Exponentially harder than fooling one.
ThoughtProof integrates with the emerging agentic commerce infrastructure.
Our Verification API is x402-native. Agents pay 0.01 USDC per verification on Base. Compatible with AgentCash — one balance, 300+ paid APIs.
Deployed as a default Evaluator on Base Mainnet. Verifies agent work before escrow releases payment.
The largest AI agent marketplace on Base ($658M market cap, 25K+ weekly transactions). ERC-8183 co-authors. ThoughtProof = verification layer for agent output quality.
Agent #28388 on Ethereum, #28847 on Base. Cryptographic identity linked to verification capabilities. Verifiable on 8004scan.
api.thoughtproof.ai — POST /v1/verify, get 402, pay USDC, receive Ed25519-signed Epistemic Block. Production-ready today.
1,500+ monthly downloads. Self-hosted verification, BYOK, on-prem compatible. MIT License. Works with any LLM provider.
If your agents handle money, their output needs to be verified before payment settles. Not after.