A middleware library that adds Mastercard Verifiable Intent cryptographic authorization proofs to self-hosted AI agent transactions

Mastercard and Google released the Verifiable Intent spec in March 2026 after the OpenClaw security crisis exposed that autonomous AI agents making purchases and API calls have no trust layer. The enterprise SDK exists, but self-hosted agent builders running OpenClaw, Hermes, or custom frameworks have no simple way to produce cryptographic proof that a human authorized each agent action. This middleware wraps any agent's outbound API calls and financial transactions with Verifiable Intent proofs, so disputes are resolvable and audit trails are tamper-resistant. Drop-in integration for OpenClaw skills and Hermes actions.

Demand Breakdown

1,224

Social Proof 2 sources

OpenClaw had a rough week

2026-05-05

799 HN

Every OpenClaw Security Incident, CVE, and Exploit in 2026

2026-02-17

425

Gap Assessment

CompetitiveMultiple tools exist but differentiation opportunities remain

3 tools exist (Mastercard Verifiable Intent SDK, AgentGateway, AAR (Agent Action Records)) but gaps remain: Enterprise-grade, designed for payment processors and large merchants. No plug-and-play integration with self-hosted agent frameworks like OpenClaw or Hermes. No local spending limits or kill switch.; Binary approve/deny without cryptographic proof. No Verifiable Intent integration. No spending limit tracking. No audit trail with tamper-resistant proofs..

Features4 agent-ready prompts

Express/Fastify middleware that intercepts outbound agent HTTP requests, checks if they match a financial-action pattern, and wraps them with Verifiable Intent cryptographic proofs

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Per-action spending limits and confirmation gates that pause the agent and prompt the user before any transaction exceeding a configured threshold

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Audit trail viewer CLI that queries the local proof database and generates human-readable or JSON reports of all agent financial actions with cryptographic verification status

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OpenClaw skill wrapper and Hermes action adapter that integrates the middleware into each framework's native plugin/action system

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Competitive LandscapeFREE

Product	Does	Missing
Mastercard Verifiable Intent SDK	Official enterprise SDK for generating Verifiable Intent proofs aligned with AP2 and UCP protocols. Co-developed with Google.	Enterprise-grade, designed for payment processors and large merchants. No plug-and-play integration with self-hosted agent frameworks like OpenClaw or Hermes. No local spending limits or kill switch.
AgentGateway	Kill-switch middleware that routes all agent tool calls through a single gateway with approval controls	Binary approve/deny without cryptographic proof. No Verifiable Intent integration. No spending limit tracking. No audit trail with tamper-resistant proofs.
AAR (Agent Action Records)	Verifiable agent action recording system that predates and aligns with Mastercard's standard	Protocol-level standard without a drop-in middleware for specific agent frameworks. No spending controls.

Aggregate Score

0 leads found

Details

TypeProduct Idea

Competitors3

Features4

Issues2

Leads0

Source Signals

All signals →

2Mastercard and Google Launch Verifiable Intent: Cryptographic Trust Layer for AI Agent Transactions

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