A2a Bridge

Name: A2a Bridge
Author: mdfifty50-boop

by mdfifty50-boopversion 0.1.1i★ –iRuns on your computer

Registry nameio.github.mdfifty50-boop/a2a-bridge

Install

Overview

Description from the maker (original English)

Agent-to-agent communication bridge for multi-agent systems

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs on your computer
Transport: stdio
Category: Other

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on your computer with your user’s permissions (files, network, apps).
The registry lists no key to fill in.

You need

npmNode.js installed (for the npx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "a2a-bridge": {
      "command": "npx",
      "args": [
        "-y",
        "a2a-bridge-mcp"
      ]
    }
  }
}

Run this in your terminal

claude mcp add a2a-bridge -- npx -y a2a-bridge-mcp

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "a2a-bridge": {
      "command": "npx",
      "args": [
        "-y",
        "a2a-bridge-mcp"
      ]
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "a2a-bridge": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "a2a-bridge-mcp"
      ]
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

Your choice stays on this device in a cookie; no account needed.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 8, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account mdfifty50-boop, which owns the repo
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
– Not applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
– Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
… Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints

Compared with others in Otheri

More stars than 0% of the other 18431 servers in this category
Published to the registry more recently than 6% of the other 18431 servers in this category
Basic checks equal to or better than 100% of the other 18431 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is A2a Bridge safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed –, and the latest version (0.1.1) reached the registry 7 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Node.js on your computer.

What can I use instead?

In the same category: Spec Driven Development, Remote Desktop Commander, Filesystem MCP

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

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MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.

Runs on your computer★ 440MITUpdated 14 months ago

Install

Remote Desktop Commander

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Remote Desktop Commander: use files, terminal and processes on your own computers from any AI app.

Runs in the cloud★ 211Updated 3 days ago

Install

Filesystem MCP

by j0hanz

Filesystem MCP server for AI assistants.

Runs on your computerUpdated today

Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

a2a-bridge-mcp

MCP server for agent-to-agent communication -- capability discovery, task delegation, and result aggregation across MCP agents.

MCP connects agents to tools, but not to each other. This server adds a standardized agent-to-agent layer within the MCP protocol -- register agents, discover capabilities, delegate tasks, and broadcast work to multiple agents. Inspired by Google's A2A protocol.

Install

npx a2a-bridge-mcp

Claude Desktop

Add to claude_desktop_config.json:

"mcpServers": { "a2a-bridge": { "command": "npx", "args": ["a2a-bridge-mcp"] } } }

From source

git clone https://github.com/mdfifty50-boop/a2a-bridge-mcp.git

cd a2a-bridge-mcp npm install node src/index.js

Tools

register_agent

Param	Type	Default	Description
`agent_id`	string	required	Unique agent identifier
`capabilities`	string[]	required	Capability strings (e.g. `["code-review", "summarization"]`)
`description`	string	`""`	Human-readable description
`input_schema`	object	`{}`	JSON schema for accepted input
`output_schema`	object	`{}`	JSON schema for produced output
`endpoint`	string	`""`	Optional endpoint or transport hint

discover_agents

Find agents matching a capability need with fuzzy text similarity scoring.

Param	Type	Default	Description
`capability_needed`	string	required	Capability to search for
`min_score`	number	0.3	Minimum similarity score (0-1)

Returns scored matches sorted by relevance.

delegate_task

Delegate a task to a specific registered agent. Creates a tracked task with status lifecycle.

Param	Type	Default	Description
`from_agent`	string	required	Delegating agent ID
`to_agent`	string	required	Target agent ID
`task_description`	string	required	What the target should do
`input_data`	object	`{}`	Input data for the task
`timeout_ms`	number	30000	Timeout in milliseconds

Returns a task_id for tracking.

get_task_result

Get status and result of a delegated task. Also used by executing agents to submit results.

Param	Type	Description
`task_id`	string	Task ID from delegate_task or broadcast_task
`submit_result`	object	(Optional) Submit completion result
`submit_error`	string	(Optional) Submit failure error

Status lifecycle: pending -> running -> completed / failed.

broadcast_task

Send a task to ALL agents matching a capability. Creates individual tracked tasks for each match.

Param	Type	Default	Description
`from_agent`	string	required	Broadcasting agent ID
`capability_needed`	string	required	Capability to match
`task_description`	string	required	What matched agents should do
`input_data`	object	`{}`	Input data
`min_score`	number	0.3	Minimum match score
`timeout_ms`	number	30000	Timeout per agent

Returns list of task IDs for aggregation via get_task_result.

get_agent_card

Get an agent's full capability card with schemas, stats, and task history.

Param	Type	Description
`agent_id`	string	Agent identifier

Returns capabilities, input/output schemas, success rate, and task counts. Inspired by Google A2A agent cards.

list_agents

List all registered agents, optionally filtered by capability.

Param	Type	Default	Description
`filter`	string	`""`	Capability keyword to filter by (empty = all)

Resources

URI	Description
`a2a://agents`	All registered agents with capabilities and stats

Usage Pattern

1. register_agent    -- each agent registers at startup

discover_agents -- find who can handle a task
delegate_task -- send work to a specific agent OR broadcast_task -- send work to all matching agents
get_task_result -- poll for completion or submit results
get_agent_card -- inspect an agent's full profile
list_agents -- overview of the agent network

Multi-agent workflow example

Agent A (orchestrator):

register_agent(agent_id="orchestrator", capabilities=["planning", "coordination"])
discover_agents(capability_needed="code review") -> finds Agent B (score: 0.95)
delegate_task(from="orchestrator", to="agent-b", task="Review PR #42") -> task_id: "task_1234"
get_task_result(task_id="task_1234") -> status: "completed", result: { approved: true, comments: [...] }

Agent B (worker):

register_agent(agent_id="agent-b", capabilities=["code-review", "linting"])
(receives task via external notification or polling)
get_task_result(task_id="task_1234", submit_result={ approved: true })

License

MIT

A2a Bridge

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Otheri

Common questions

Alternatives

Spec Driven Development

Remote Desktop Commander

Filesystem MCP

README from the maker

a2a-bridge-mcp

Install

Claude Desktop

From source

Tools

register_agent

discover_agents

delegate_task

get_task_result

broadcast_task

get_agent_card

list_agents

Resources

Usage Pattern

Multi-agent workflow example

License