Agentic Settlement Protocol: An Application Profile for Refundable, Delayed-Fulfilment Agent Commerce on Stablecoin Rails

arXiv:2609.02208 · cs.CR · Submitted 2026-09-02 · Read on arXiv

cs.CR

Submitted: 2026-09-02

Updated: 2026-09-02

Code: https://github.com/ChainAgnostic/CAIPs

Terminology

• Arbiter — 16× in this paper · explained in 1 episode
• Verification — 14× in this paper · explained in 2 episodes
• Core — 7× in this paper · explained in 2 episodes
• Agentic Settlement Protocol — 5× in this paper
• Commerce Payments Protocol — 5× in this paper
• AI Agents — 3× in this paper · explained in 2 episodes
• Abstraction — 3× in this paper · explained in 1 episode
• Agentic Commerce Protocol — 2× in this paper

Sources

• Autonomous Agents on Blockchains: Standards, Execution Models, and Trust Boundaries
• Free-Riding the Agentic Web: A Systematic Security Analysis of x402 Payments
• Zero-Trust Runtime Verification for Agentic Payment Protocols: Mitigating Replay and Context-Binding Failures in AP2
• A402: Binding Cryptocurrency Payments to Service Execution for Agentic Commerce
• SoK: Security of Autonomous LLM Agents in Agentic Commerce
• Compliance-Aware Agentic Payments on Stablecoin Rails
• Towards Multi-Agent Economies: Enhancing the A2A Protocol with Ledger-Anchored Identities and x402 Micropayments for AI Agents
• AESP: A Human-Sovereign Economic Protocol for AI Agents with Privacy-Preserving Settlement
• Can Trustless Agents Be Trusted? An Empirical Study of the ERC-8004 Decentralized AI Agent Ecosystem
• SoK: Blockchain Agent-to-Agent Payments

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