a2a-client

Name: a2a-client
Author: jeremylongshore

jeremylongshore ★ 2867

a2a-client is an MCP server that securely discovers and communicates with Agent2Agent (A2A) agents through the official @a2a-js/sdk, exposing tools for fetching cards, sending/streaming messages, and managing tasks with operator confirmation gates. It treats all remote agent claims as untrusted and enforces strict security boundaries including HTTP/HTTPS-only connections, IP-range validation, SSRF protection, and credential allowlisting.

Security Integrations runs shell

Install

> /plugin marketplace add jeremylongshore/tons-of-skills-marketplace/tree/HEAD/plugins/mcp/a2a-client

> /plugin install a2a-client

Source: https://github.com/jeremylongshore/tons-of-skills-marketplace/tree/HEAD/plugins/mcp/a2a-client

What it's made of

1 MCP server · 1 hook

Commands: 0
Agents: 0
Skills: 0
MCP servers: 1
Hooks: 1 · PreToolUse

What it needs & plugs into

API keys: A2A_API_KEY A2A_AUTH_HEADER_NAME A2A_BEARER_TOKEN
Paid services: none detected
External tools: confirm-cancel-task.sh node
Talks to: nothing external detected

Analyzed 2026-10-29. Facts extracted from the plugin's files. Prose generated by claude-haiku-4-5-20251001.

Is this your plugin?

Claim it to keep the card accurate and enter the weekly contest. Requires signing in as the GitHub owner (jeremylongshore).