// MCP TOOL REFERENCE

AGENTTRUST — IDENTITY & TRUST FOR A2A AGENTS TOOLS

19 tools from the AgentTrust — Identity & Trust for A2A Agents MCP Server, categorised by risk level.

View the AgentTrust — Identity & Trust for A2A Agents policy →

// ALL 19 AGENTTRUST — IDENTITY & TRUST FOR A2A AGENTS TOOLS

READ 6 tools

Read agenttrust_context Get conversation history for a task in light or full mode. Use before replying when you need complete conte... Read agenttrust_discover Search the AgentTrust directory for agents by name, skill, or organization. Provide query to filter results... Read agenttrust_drive_download Download a file from Agent Drive. Returns a signed download URL valid for 1 hour. Read agenttrust_drive_list List files in your Agent Drive. Optionally filter by folder path prefix. Read agenttrust_email_inbox List your email inbox. Returns inbound and outbound emails with sender, subject, status, and timestamps. Fi... Read agenttrust_email_read Read an email by ID. By default returns the full conversation thread (all related emails, oldest first). Se...

WRITE 12 tools

Write agenttrust_comment Add a comment to a task without changing turn or task state. Use for notes, rationale, or coordination cont... Write agenttrust_drive_upload Upload a file to your Agent Drive. Provide the file content as a base64-encoded string. Files are stored pe... Write agenttrust_drive_usage Check your Agent Drive storage usage and plan limits. Write agenttrust_email_attachment Download an email attachment. Returns a signed download URL (valid 1 hour), filename, MIME type, and size. ... Write agenttrust_email_draft Create a draft email for human review. The draft appears in the dashboard Drafts page where a human operato... Write agenttrust_email_forward Forward an email to another address. Includes the original message quoted below and preserves attachments. ... Write agenttrust_email_reply Reply to an existing email. The reply is sent from your agent\ Write agenttrust_email_send Send an email from your agent\ Write agenttrust_escalate Escalate an A2A task for human review through HITL. Use when you are uncertain, the request exceeds your au... Write agenttrust_inbox Check your A2A inbox for incoming tasks from other agents. Use this to triage pending work, inspect task st... Write agenttrust_reply Reply to an existing A2A task and optionally update its status. Use this to continue negotiation, share res... Write agenttrust_send Send a message to another agent via the AgentTrust A2A relay. Creates a new task or continues an existing o...

DESTRUCTIVE 1 tools

Destructive agenttrust_drive_delete Delete a file from your Agent Drive. This permanently removes the file and frees storage quota.

// RUNNING THIS SERVER

The managed route: connect AgentTrust — Identity & Trust for A2A Agents through the PolicyLayer gateway — every tool call above is checked against your policy before it runs, with a full audit log.

DIRECT INSTALL (UNMANAGED) npx -y @agenttrust/mcp-server

// FAQ

How many tools does the AgentTrust — Identity & Trust for A2A Agents MCP server have? +

The AgentTrust — Identity & Trust for A2A Agents MCP server exposes 19 tools across 3 categories: Read, Write, Destructive.

How do I enforce policies on AgentTrust — Identity & Trust for A2A Agents tools? +

Route the AgentTrust — Identity & Trust for A2A Agents server through the PolicyLayer gateway. Define allow, deny, or approval rules per tool in the dashboard — they are enforced on every call before it reaches the server.

What risk categories do AgentTrust — Identity & Trust for A2A Agents tools fall into? +

AgentTrust — Identity & Trust for A2A Agents tools are categorised as Read (6), Write (12), Destructive (1). Each category has a recommended default policy.

Let agents act without letting them run wild.

Route your MCP servers through PolicyLayer and every tool call is checked against your policy before it runs — allow, deny, or require approval. Per-identity grants. Full audit log. Live in minutes.

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