Claude + ChatGPT Agent Bridge

Agent Bridge is a working MCP task broker that lets Claude and Codex/ChatGPT agents assign bounded work to one another, continue independently, and retrieve the peer result later.

The linked Cognito Forms video demonstrates a useful shared-tool pattern: both AI products connect to one external MCP-backed system. Agent Bridge extends that pattern with a task queue and worker adapters, because sharing a connector alone does not create agent-to-agent delegation.

Documentation

New here? Start with the User Guide. See also the Development workflow, Setup Tutorial, and Validation and Compatibility.

Current Status

• Working MCP server over local stdio and remote-capable Streamable HTTP
• Persistent asynchronous task queue
• Claude Code and Codex CLI worker adapters
• Read-only and workspace-write modes
• Workspace allowlist instead of arbitrary paths
• Cancellation, restart recovery, nesting limits, and circular-delegation protection
• Static bearer authentication for local/private setups
• OAuth/JWT protected-resource support for hosted connectors
• Shared Claude/Codex delegation skill and plugin scaffolds
• Automated protocol and queue tests
• Real authenticated Codex-to-Claude and Claude-to-Codex Windows handoffs completed

See Validation and Compatibility for what is proven, what depends on account access, and the product-by-product support matrix. Follow Setup Tutorial to install it.

Quick Local Start

On Windows, macOS, or Linux, the repeatable setup command checks the prerequisites, builds and tests the bridge, creates the local config if needed, and registers the MCP endpoint with both CLIs:

node scripts/setup-local.mjs

To make a particular project the default allowed workspace during setup:

node .\scripts\setup-local.mjs --workspace-name my-project --workspace "C:\path\to\project"

Existing config and MCP registrations are preserved. To perform the same steps manually:

npm install
npm run build
cp bridge.config.example.json bridge.config.json
npm run doctor

Edit bridge.config.json so its named workspaces point to the project folders the agents may access. Start the single local broker before opening either agent:

npm run start:http

Windows can run the broker detached with npm run start:windows and stop it with npm run stop:windows. The setup tutorial also shows the optional sign-in startup entry.

Connect both Claude Code and Codex to http://127.0.0.1:8787/mcp using the examples in configs/. One shared HTTP process is the recommended two-agent setup. Stdio is included for single-client or diagnostic use.

The MCP tools are:

• agent_bridge_capabilities
• delegate_task
• get_task
• list_tasks
• cancel_task

Security Model

The bridge never asks for or copies ChatGPT or Claude session tokens. Local workers reuse the authenticated claude and codex CLIs on the same machine. HTTP deployment requires a bearer token or OAuth/JWT configuration when it binds outside loopback. Provider API/CLI credentials remain on the worker host and are not returned through MCP.

See Security before exposing the HTTP endpoint.