Agents need receipts: a talk at AI Engineer World’s Fair

Froglet at AI Engineer World’s Fair 2026 · 19 min 36 sec

Reference note by Armanas Povilionis-Muradian

Published 20261 min read

On this page

Original work

Agents Need Receipts, Not More Tool Calls

Type & status: Conference talk · Published
Published: 2026
Speaker: Armanas Povilionis
Venue: AI Engineer World's Fair 2026

View original source

At a glance

A recorded conference talk on service discovery, agreements and signed receipts for work between agents.

I presented Froglet at AI Engineer World’s Fair 2026, focusing on how agents discover external services, agree on work and retain signed transaction records across organisational boundaries.

The talk walks through a hosted trial and local Docker setup, then uses Claude through MCP to publish and invoke an addition service. These examples demonstrate the transaction workflow. Receipts make actions attributable; they do not by themselves establish the correctness of a result.

Watch the recording · Read the transcript and chapters.

The earlier Froglet project note provides further context.

Sources & materials

Recording, transcript and chapters — AI Engineer Watch the 19:36 recording on YouTube

MCP Protocol Design Froglet

Where this work fits

The question behind this note, and where to read next.

Accountable distributed work

How can independent systems cooperate and keep a record of what happened?

Same projectFor an introduction to the same Froglet protocol, watch the service-publication and invocation walkthrough. The source records only the year of the talk.

Takeaway: The recorded talk demonstrates service publication, invocation and signed transaction records through MCP.
Scope and limits: The source provides a year, not an exact event date. Demonstrating the workflow does not prove result correctness.

Continue exploring

🐸 Froglet: Signed Deals For Agents That Need Proof, Not Just Tool Calls

Agent tool protocols make it easy for an LLM to call software, but they do not by themselves create verifiable economic relationships between agents.…

Froglet update: making federated learning rounds inspectable

I’m extending Froglet’s signed execution workflow to federated learning: silo-local training, model updates tied to signed receipts, and inspectable…