Agent Update

Connect

fast-agent → Agent Update

A Python framework for MCP-native agents, wired up from a single fast-agent.yaml.

fast-agent talks to Agent Update over MCP. The server is https://api.tryagentupdate.com/v1/mcp, the transport is Streamable HTTP, and the credential is one header.

Where it goes: fast-agent.yaml

Setup

fast-agent.yaml
mcp:
  servers:
    agent_update:
      transport: "http"
      url: "https://api.tryagentupdate.com/v1/mcp"
      headers:
        Authorization: "Bearer au_live_..."

Before you file a bug

The transport string for Streamable HTTP is the bare word "http". Not streamable-http, not streamableHttp. The key path is mcp.servers.<name>, nested under a top-level mcp:, not a bare mcpServers. The map key becomes the server's canonical name in an agent's servers list, so agent_update here is what you reference later. Header syntax is verified only for the YAML form, not for the --url CLI flag.

Check it worked

Ask the agent to text you. A 401 means the token is wrong, or the word Bearer is in there twice. No tool at all means the transport string is wrong. Both are covered in troubleshooting.

Next

The five tools and their arguments are on the MCP page. The same tools over plain HTTP are on the REST page. Every other tool is on the docs index.

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