Browse the most popular tools on the SettleGrid marketplace with pricing and availability info. Each result includes cost-per-call, total invocations, and whether the tool requires an API key. Optionally filter by category. Use this to find callable tools before invoking them with call_tool.
Part of the Settlegrid Discovery MCP server. Enforce policies on this tool with Intercept, the open-source MCP proxy.
AI agents call list_marketplace_tools to retrieve information from Settlegrid Discovery without modifying any data. This is common in research, monitoring, and reporting workflows where the agent needs context before taking action. Because read operations don't change state, they are generally safe to allow without restrictions -- but you may still want rate limits to control API costs.
Even though list_marketplace_tools only reads data, uncontrolled read access can leak sensitive information or rack up API costs. An agent caught in a retry loop could make thousands of calls per minute. A rate limit gives you a safety net without blocking legitimate use.
Read-only tools are safe to allow by default. No rate limit needed unless you want to control costs.
tools:
list_marketplace_tools:
rules:
- action: allowSee the full Settlegrid Discovery policy for all 6 tools.
Agents calling read-class tools like list_marketplace_tools have been implicated in these attack patterns. Read the full case and prevention policy for each:
Other tools in the Read risk category across the catalogue. The same policy patterns (rate-limit, allow) apply to each.
Browse the most popular tools on the SettleGrid marketplace with pricing and availability info. Each result includes cost-per-call, total invocations, and whether the tool requires an API key. Optionally filter by category. Use this to find callable tools before invoking them with call_tool.. It is categorised as a Read tool in the Settlegrid Discovery MCP Server, which means it retrieves data without modifying state.
Add a rule in your Intercept YAML policy under the tools section for list_marketplace_tools. You can allow, deny, rate-limit, or validate arguments. Then run Intercept as a proxy in front of the Settlegrid Discovery MCP server.
list_marketplace_tools is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the list_marketplace_tools rule in your Intercept 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.
Set action: deny in the Intercept policy for list_marketplace_tools. 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.
list_marketplace_tools is provided by the Settlegrid Discovery MCP server (settlegrid/settlegrid-discovery). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Open source. One binary. Zero dependencies.
npx -y @policylayer/intercept