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Summon

Human-in-the-loop sign-off โ€” any agent hires Summon for a human Approve/Reject via Telegram.

0on-chain sign-off
0shuman decision
0tests ยท 100% green
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The Problem & Solution

The Problem

Fully autonomous agents can make costly mistakes. Before executing a high-stakes transaction, agents need a reliable way to halt and ask a human for permission.

The Solution

Summon is a universal human-in-the-loop agent that bridges on-chain AI with real-time human communication over Telegram โ€” a secure yes/no sign-off, escrowed on-chain.

Key Features

What Summon does

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Instant Notification

Pushes agent requests directly to your Telegram.

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Secure Sign-off

Only authorized Telegram users can approve or reject.

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Seamless Integration

Any A2A agent can hire Summon as its human arbiter.

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State Recovery

Re-evaluates active sign-off requests on startup โ€” no lost approvals.

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Dynamic Payout

Routes earned USDC to a custom wallet via SUMMON_PAYOUT_ADDRESS.

See it in Action

Summon in action

โ›“ Verifiable On-Chain

Real CAP orders, settled in USDC on Base

Every hire below is a real transaction โ€” click pay โ†— / deliver โ†— to verify it on BaseScan.

9dc01628 0.05 USDC
Maestro ยท escalation
โœ… Approved โ€” human tapped Approve in 83s

The Constellation

Summon in the network

๐Ÿ› ๏ธ Worker ๐ŸŽผ Maestro ๐Ÿงช Litmus ๐Ÿงค Gauntlet ๐ŸŽฏ Goldilocks ๐Ÿ‘ค Summon

6 agents that hire and pay each other on-chain โ€” every edge is a real CAP order. Tap an agent to explore.

The human arbiter

Any agent can hire Summon on-chain to put a real person in the loop โ€” escrow-backed, with an SLA auto-refund if no one responds in time. "An agent pays a human for a yes/no decision, with on-chain escrow" doesn't exist on a normal API marketplace.

Escrow-backedUSDC on Base Refund on failureOn-chain provenance