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Balance Engine

9 tools. 8 can modify or destroy data without limits.

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

Last updated:

8 can modify or destroy data
1 read-only
9 tools total

Community server · catalogue entry checked 01/09/2026 · full schemas captured for 9 of 9 tools

How to control Balance Engine ↓

What Balance Engine exposes to your agents

Read (1) Write / Execute (0) Destructive / Financial (1)

What Balance Engine costs in tokens

2,629 tokens of tool definitions, loaded on every request
1.3% of a 200k context window
403 heaviest tool: personal_day
Critical Risk

The most dangerous Balance Engine tools

8 of Balance Engine's 9 tools can modify, destroy, or commit something on every call — and an agent calls them with no built-in limits.

How to control Balance Engine

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

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

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

Cap read operations
{
  "sky_window": {
    "limits": [
      {
        "counter": "sky_window_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 Balance Engine — 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 BALANCE ENGINE →

Instant setup, no code required.

All 9 Balance Engine tools

Related servers

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

Questions about Balance Engine

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

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

How many tools does the Balance Engine MCP server expose? +

9 tools across 3 categories: Destructive, Other, Read. 1 are read-only. 8 can modify, create, or delete data.

How do I enforce a policy on Balance Engine? +

Register the Balance Engine 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 Balance Engine tool call.

Deterministic rules across all 9 Balance Engine tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

Instant setup, no code required.

9 Balance Engine tools catalogued and risk-classified — across an index of 46,500+ MCP servers.

// WHERE THIS COMES FROM

These policies come from Balance Engine's registry record.

The record behind this page: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.

Teams ship this data inside their own products. See what a licence covers →

// GET IN TOUCH

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