A2A MCP Server
Server Configuration
Describes the environment variables required to run the server.
| Name | Required | Description | Default |
|---|---|---|---|
| A2A_API_KEY | No | 认证 API Key | |
| A2A_TIMEOUT | No | HTTP 请求超时 (毫秒) | 30000 |
| A2A_GATEWAY_URL | No | A2A Gateway URL (如 LiteLLM) | http://localhost:4000 |
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
Features and capabilities supported by this server
Protocol revision2025-11-25
| Capability | Details |
|---|---|
| tools | {} |
Tools
Functions exposed to the LLM to take actions
| Name | Description |
|---|---|
| a2a_discoverA | Discover an A2A agent at a URL. Fetches the agent card and registers it for later use. |
| a2a_list_agentsA | List all discovered A2A agents with their capabilities and skills. |
| a2a_sendA | Send a message to an A2A agent and wait for the result. Supports polling for async tasks. |
| a2a_get_taskB | Get the current status and result of a task by ID. |
| a2a_cancel_taskC | Cancel a running task. |
| a2a_list_tasksA | List tasks on a remote agent, optionally filtered by context. |
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 6 tools
Each tool has a clearly distinct purpose: discovery, listing agents, sending messages, and managing tasks by ID or listing. No overlap.
All tools follow the consistent pattern 'a2a_verb_noun' in lowercase snake_case, with verbs like list, get, send, cancel, discover.
With 6 tools covering discovery, task lifecycle (send, get, list, cancel), the count is well-scoped for an A2A protocol server.
Covers core A2A operations: agent discovery, task creation (via send), retrieval, listing, and cancellation. Minor gap: explicit task creation tool, but send likely handles it.