A2A MCP Server
Server Configuration
Describes the environment variables required to run the server.
| Name | Required | Description | Default |
|---|---|---|---|
No arguments | |||
Instructions
Guidance the server publishes about itself, which clients place ahead of the tool catalog so the model reads it before choosing anything.
This server publishes no instructions, or was last inspected before Glama recorded them.
Capabilities
Server capabilities have not been inspected yet.
Tools
Functions exposed to the LLM to take actions
| Name | Description |
|---|---|
| register_agentC | Register an A2A agent with the bridge server. Args: url: URL of the A2A agent Returns: Dictionary with registration status |
| list_agentsB | List all registered A2A agents. Returns: List of registered agents |
| unregister_agentC | Unregister an A2A agent from the bridge server. Args: url: URL of the A2A agent to unregister Returns: Dictionary with unregistration status |
| send_messageA | Send a message to an A2A agent. Args: agent_url: URL of the A2A agent message: Message to send session_id: Optional session ID for multi-turn conversations Returns: Agent's response with task_id for future reference |
| get_task_resultA | Retrieve the result of a task from an A2A agent. Args: task_id: ID of the task to retrieve history_length: Optional number of history items to include (null for all) Returns: Task result including status, message, and artifacts if available |
| cancel_taskC | Cancel a running task on an A2A agent. Args: task_id: ID of the task to cancel Returns: Cancellation result |
| send_message_streamA | Send a message to an A2A agent and stream the response. Args: agent_url: URL of the A2A agent message: Message to send session_id: Optional session ID for multi-turn conversations Returns: Stream of agent's responses |
Prompts
Interactive templates invoked by user choice
| Name | Description |
|---|---|
No prompts | |
Resources
Contextual data attached and managed by the client
| Name | Description |
|---|---|
No resources | |
TDQS
Scored across 7 tools
Each tool has a clearly distinct purpose with no overlap: cancel_task, get_task_result, list_agents, register_agent, send_message, send_message_stream, and unregister_agent all target specific operations in the A2A agent management workflow. The two message-sending tools are differentiated by streaming vs. non-streaming behavior, avoiding confusion.
All tools follow a consistent verb_noun naming pattern (e.g., cancel_task, get_task_result, list_agents, register_agent). The naming is uniform across all seven tools, using snake_case throughout without any deviations or mixed conventions.
With 7 tools, the server is well-scoped for managing A2A agents and tasks. Each tool earns its place by covering essential operations like agent registration, message sending, task management, and result retrieval, without being overly sparse or bloated.
The tool set provides strong coverage for core A2A agent workflows, including agent lifecycle (register/unregister/list), task management (cancel/get result), and communication (send message with and without streaming). A minor gap exists in lacking a tool to directly list or manage tasks without prior knowledge of task IDs, but agents can work around this using existing tools.