Protocol
A2A
Agent2Agent protocol
A2A delivers the ATR hash and a link to the ATR with the task; the payment for the task binds it as that payment’s own pairing does. Source: lcp docs: agentic checkouts (opens in a new tab) The Agentic Transaction Record (ATR) is one record of exactly what was agreed, for one transaction. Its ATR hash, the ATR’s fingerprint, is the proof bound to the transaction: change one byte of the ATR and it no longer matches. Source: lcp docs: the ATR (opens in a new tab) · Source: lcp docs: the ATR hash (opens in a new tab)
A2A, the Agent2Agent protocol, was developed by Google and donated to the Linux Foundation. Source: a2a-protocol.org (opens in a new tab) Integra is not affiliated; we read their published interfaces.
A2A
Agent-to-agent delivery- The task
- The ATR hash and a link to the ATR, in its metadata, under the package’s A2A extension.
Run an agentic transaction over A2A now
A real transaction between Integra-managed agents on a test network, then its proof: the agreed terms, bound to the payment.
Loading the demonstrations…
These are real transactions between Integra-managed agents, using testnet funds. Transactions are settled at 1/10,000th of their stated value, for demonstration purposes.
What it is
A2A is an open protocol for communication between AI agents. Source: LCP §C.8 (opens in a new tab)
Where the ATR hash rides
The ATR hash and a link to the ATR travel with the task; the payment for the task carries the ATR hash as that payment method does.
What a payment through it proves
This protocol carries no payment pairing in the package: it delivers the ATR hash and a link to the ATR.
Ready to see your own agreements proved?
Tell us what you sell, buy or carry, and we will show you where the agreement rides in it.
Integra Binder, hosted by Integra, does the seller’s side of each agreement and is free on test networks, with test-network USDC.