A2db

5 tools. 3 can modify or destroy data without limits.

1 destructive tool with no built-in limits. Policy required.

Last updated:

3 can modify or destroy data
2 read-only
5 tools total

Community server · catalogue entry verified 29/06/2026

How to control A2db ↓

What A2db exposes to your agents

Read (2) Write / Execute (2) Destructive / Financial (1)
Critical Risk

The most dangerous A2db tools

3 of A2db's 5 tools can modify, destroy, or commit something on every call — and an agent calls them with no built-in limits.

How to control A2db

PolicyLayer is an MCP gateway — it sits between your AI agents and A2db, and nothing reaches the server without passing your rules. These are the rules we recommend:

Deny destructive operations
{
  "logout": {
    "deny_if": [
      {
        "conditions": [],
        "on_deny": "Blocked by default. Requires approval."
      }
    ]
  }
}

Destructive tools should never be available to autonomous agents without human approval.

Rate limit write operations
{
  "login": {
    "limits": [
      {
        "counter": "login_per_hour",
        "window": "hour",
        "max": 30,
        "scope": "grant"
      }
    ]
  }
}

Prevents bulk unintended modifications from agents caught in loops.

Cap read operations
{
  "list_connections": {
    "limits": [
      {
        "counter": "list_connections_per_minute",
        "window": "minute",
        "max": 60,
        "scope": "grant"
      }
    ]
  }
}

Controls API costs and prevents retry loops from exhausting upstream rate limits.

  1. Create a free account and register A2db — nothing to install.
  2. Add these rules — paste them, or build them visually. Tune the limits to your setup.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
ENFORCE POLICY ON A2DB →

Instant setup, no code required.

All 5 A2db tools

Related servers

Other MCP servers with similar tools — same risk classification, starter policies for each.

Questions about A2db

Can an AI agent delete data through the A2db MCP server? +

Yes. The A2db server exposes 1 destructive tools including logout. These permanently remove resources with no undo. PolicyLayer blocks destructive tools by default so they never reach the upstream server.

How do I prevent bulk modifications through A2db? +

The A2db server has 1 write tools including login. Set a rate limit in your policy -- for example, 10 calls per hour prevents an agent from making more than 10 modifications per hour. PolicyLayer enforces this at the gateway, before calls reach A2db.

How many tools does the A2db MCP server expose? +

5 tools across 4 categories: Destructive, Execute, Read, Write. 2 are read-only. 3 can modify, create, or delete data.

How do I enforce a policy on A2db? +

Register the A2db MCP server in PolicyLayer, apply the suggested rules above (adjust the limits to your use case), and point your AI client at the PolicyLayer proxy URL instead of the server directly. Your agents keep the same tools; PolicyLayer evaluates every call against policy before it executes. Nothing to install, live in minutes.

Enforce policy on every A2db tool call.

Deterministic rules across all 5 A2db tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

Instant setup, no code required.

5 A2db tools catalogued and risk-classified — across an index of 43,000+ MCP servers.

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