TrustAgentAI v0.6.0 · Accountability for AI-Driven Payments

Proof for AI Payments

TrustAgentAI creates cryptographically verifiable, witness-backed evidence for AI-agent financial actions — so teams can prove who acted, under whose authority, when, and what happened.

Proof, not logs.

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Open Source · Apache 2.0

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Add cryptographic accountability to your MCP / A2A agent workflows.

npm install @trustagentai/a2a-core

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See how TrustAgentAI intercepts, verifies, witnesses, and records AI-driven financial actions.

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Why now

Agents are moving from chat to execution.

MCP makes it easier for AI agents to connect to tools, workflows, and financial systems. But once agents trigger refunds, payouts, or banking operations, the hard problem is not just access.

The hard problem is accountability: who initiated the action, under whose authority, what policy applied, when was it accepted, what executed, and can anyone prove it later?

Logs are not enough.

Logs are usually owned by one party, can be incomplete, and are easy to dispute. TrustAgentAI produces independently verifiable evidence for agent actions.

Differentiation: Accountability Layer vs Gateway

v0.6.0 Dispute-Pack Hardening

Beyond logs, gateways, and signatures.

A signature can stop an outsider. It does not fully solve insider disputes, record deletion, ambiguous key rotation, or counterparties rewriting history.

Durable Keys

Stable, custodied identities for agents, proxies, and witnesses — no fresh identity minted every boot.

Append-Only Hash-Chain

Delete a record, leave a gap. Edit one, break the chain. Manipulation becomes detectable.

Independent Witness

A third party co-signs high-value transactions before finality, creating an independent evidence surface.

Checkpoint Anchoring

Public timestamped checkpoints create ordering evidence without putting sensitive data on-chain.

Encrypted WORM Store

Full records are recoverable, cross-held, and confidential — with an escrow path for governed access.

Key Transparency

Key rotations require prior-key endorsement. Revocations are append-only, not silent overwrites.

Product Lineup

Accountability infrastructure for agent execution.

Built for MCP and A2A workflows where agents touch money, permissions, and regulated operations.

A2A Receipts Protocol

Intent, Acceptance, Execution, and optional Ack receipts for verifiable commitments and outcomes.

Trust Proxy

Sidecar on the MCP traffic path for authority checks, limits, policy enforcement, and receipt generation.

Witness Layer

Independent co-signing for high-value actions, reducing “our logs vs your logs” disputes.

Evidence Registry

Hash-chain, checkpoint anchors, encrypted WORM records, key transparency, and exportable Dispute Packs.

What we are / are not

Not a wallet. Not a blockchain payment product. Not just an MCP gateway.

TrustAgentAI is an independent accountability layer for AI-initiated financial actions. We make agent actions verifiable, tamper-evident, and dispute-ready.

Proof, not logs.
Blog & Release Notes

Latest from TrustAgentAI

Technical notes, protocol updates, and product thinking on AI-agent accountability, payments, MCP, cryptographic receipts, and dispute-grade evidence.

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Release v0.6.0 Payments Track Proof, not logs

Collusion-Resistant Accountability for AI-Driven Payments

TrustAgentAI v0.6.0 hardens the evidence lifecycle for AI-agent financial actions: durable keys, independent witnesses, append-only evidence, encrypted WORM storage, key transparency, and public checkpoint anchoring.

Why signatures are not enough

A signature can stop outsiders from forging an action. It does not fully solve insider disputes, missing records, ambiguous key rotation, database rewrites, or counterparties presenting conflicting histories.

The question is not only whether the API call succeeded. The question is whether you can prove what happened later.

What v0.6.0 adds

  • Durable, custodied keys — stable identities for agents, proxies, and witnesses.
  • Append-only hash-chain — edits and deletions become detectable.
  • Independent inline witness — third-party co-signing before finality.
  • On-chain checkpoints + heartbeat — public ordering evidence without exposing private data.
  • Encrypted WORM content store — recoverable full records, cross-held and confidential.
  • Key-transparency registry — rotations and revocations become append-only history.
  • Degraded-mode discipline — outages are capped, tracked, and reconciled.

What it solves

v0.6.0 makes it much harder for a single party — or two primary counterparties — to silently fabricate, alter, suppress, or rewrite the history of an AI-agent financial action without leaving cryptographic evidence.

What it does not solve yet

TrustAgentAI is explicit about its open threat models. Collusion between an independent witness and one party remains an open threat model. Future versions may address this with multi-witness quorum models, threshold signatures, regulator-operated witnesses, confidential computing, or public transparency networks.

Positioning

TrustAgentAI is not a wallet, not a blockchain payment product, and not just an MCP gateway. It is an independent accountability layer for AI-initiated financial actions.

Proof, not logs.
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