save_to_fast_memory · ConnectWise API Gateway MCP Server MCP

WHAT IT DOES

What save_to_fast_memory does on ConnectWise API Gateway MCP Server

AI agents use save_to_fast_memory to create or update resources in ConnectWise API Gateway MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your ConnectWise API Gateway MCP Server environment.

THE RISK

Medium Risk

Why save_to_fast_memory needs a policy

This tool creates or stores data (an API query) in a fast memory cache, which is a reversible write operation. It does not execute external operations, delete data, or move money. The impact is limited to local state management within the server's memory system. Severity is low because misuse would only affect cached query storage, with no downstream impact on external systems or irreversible consequences.

From the tool's definition Tool name 'save_to_fast_memory' and description 'Save an API query to Fast Memory' indicate a create/store operation that persists data to a cache or memory store.

Documented attack patterns abuse exactly the kind of access save_to_fast_memory gives an agent:

POLICY

How to control save_to_fast_memory

PolicyLayer is an MCP gateway — it sits between your AI agents and ConnectWise API Gateway MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for save_to_fast_memory:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "save_to_fast_memory": {
      "limits": [
        {
          "counter": "save_to_fast_memory_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

save_to_fast_memory stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

Create a free account and register ConnectWise API Gateway MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

LIMIT THIS TOOL →

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EXPLORE

Related tools and policies

More ConnectWise API Gateway MCP Server tools

Destructive clear_fast_memory Clear all queries from Fast Memory. Destructive delete_from_fast_memory Delete a query from Fast Memory. Execute execute_api_call Execute an API call to the ConnectWise API. Execute send_raw_api_request send_raw_api_request Read get_api_endpoint_details Get detailed information about a specific API endpoint. Read get_category_endpoints Get all endpoints for a specific API category. Read list_api_categories List all available API categories. Read list_fast_memory List queries saved in Fast Memory.

All 11 ConnectWise API Gateway MCP Server tools →

Write tools on other servers

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Argument validation → Checking tool call arguments against schema and policy before they run.
Scoped token → Per-person credentials that grant a defined subset of servers and tools.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about save_to_fast_memory

What does the save_to_fast_memory tool do? +

Save an API query to Fast Memory. It is categorised as a Write tool in the ConnectWise API Gateway MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on save_to_fast_memory? +

Register the ConnectWise API Gateway MCP Server MCP server in PolicyLayer and add a rule for save_to_fast_memory: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches ConnectWise API Gateway MCP Server. Nothing to install.

What risk level is save_to_fast_memory? +

save_to_fast_memory is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit save_to_fast_memory? +

Yes. Add a rate_limit block to the save_to_fast_memory rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block save_to_fast_memory completely? +

Set action: deny in the PolicyLayer policy for save_to_fast_memory. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides save_to_fast_memory? +

save_to_fast_memory is provided by the ConnectWise API Gateway MCP Server MCP server (jasondsmith72/cwm-api-gateway-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every ConnectWise API Gateway MCP Server tool call.

Start from ConnectWise API Gateway MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →

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11 ConnectWise API Gateway MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.