Agent Relay

Lets your team's agents talk to each other directly — a frontend agent can ask the backend agent what an endpoint returns, read each other's sessions and hand off work — instead of routing every handoff through a human copy-pasting between chats.

Open Source Automation & Agents
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What is Agent Relay?

Agent Relay lets your team's agents talk to each other directly, so a frontend agent can ask the backend agent what an endpoint returns, read each other's sessions and hand off work.

Today every handoff runs through people — your agent, you, your teammate, their agent. With Agent Relay the agents talk directly, and you both stay on the work, across teammates and machines.

Key features

  • Direct agent-to-agent communication — agents talk to each other instead of routing every handoff through a human
  • Session reading across agents — one agent can read another agent's session and pick up its work
  • Automatic unblocking — a frontend agent can query the backend agent directly instead of waiting on you
  • Agents resolve merge conflicts between them when their branches collide
  • Works across teammates and machines — laptop, cloud box or Mac mini, one workspace
  • Works inside the tools you already use — terminal agents, desktop apps, even agents on your phone
  • Channels, DMs, durable delivery, event listeners and Zod-typed actions for any agent runtime

Pros

  • Removes the human copy-paste bottleneck between agents
  • Agents unblock each other instead of waiting on a person
  • Works across machines and inside the tools teams already use
  • Durable delivery with channels, DMs and event listeners

Cons

  • The public homepage gives few technical details — setup runs through an agent-guided onboarding flow

Agent Relay at a glance

PricingOpen Source
CategoryAutomation & Agents
Platformsweb
CompanyAgent Relay
Best forTeams running multiple agents that need to hand off work to each other directly
Official websiteagentrelay.com
agent-to-agenthandoffcollaborationrelaymulti-agent

How to choose the right Automation & Agents tool

Automation and agent tools promise to do work for you, so judge them on reliability before cleverness. Map the exact workflow you want to automate, then check the tool's integrations cover every app in that chain — one missing connector breaks the whole flow. Look for clear triggers, sensible limits, and logs you can read when something goes wrong, because something eventually will. For agents that act on your behalf, approval controls matter: you should be able to review messages, purchases or changes before they happen, especially at the start. Pricing usually scales with runs or tasks, so estimate your monthly volume honestly. Start with one low-risk workflow, measure the time it truly saves, and expand from there.

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Agent Relay FAQs

What is Agent Relay?

Agent Relay lets your team's agents talk to each other directly, so a frontend agent can ask the backend agent what an endpoint returns, read each other's sessions and hand off work.

What are the main features of Agent Relay?

Agent Relay offers Direct agent-to-agent communication — agents talk to each other instead of routing every handoff through a human, Session reading across agents — one agent can read another agent's session and pick up its work, Automatic unblocking — a frontend agent can query the backend agent directly instead of waiting on you, Agents resolve merge conflicts between them when their branches collide, Works across teammates and machines — laptop, cloud box or Mac mini, one workspace, Works inside the tools you already use — terminal agents, desktop apps, even agents on your phone and Channels, DMs, durable delivery, event listeners and Zod-typed actions for any agent runtime.

How much does Agent Relay cost?

Agent Relay is open source, so the software itself is free to download, use and self-host. Your only costs are the infrastructure you run it on and any paid services you connect to it.

What are the pros and cons of Agent Relay?

Strengths of Agent Relay include Removes the human copy-paste bottleneck between agents; Agents unblock each other instead of waiting on a person; Works across machines and inside the tools teams already use. On the downside, The public homepage gives few technical details — setup runs through an agent-guided onboarding flow.