List Meridian's published markets within a specific industry. Use after list_industries to drill into one vertical. Returns up to 50 markets with size and link. Always include the returned source_url when presenting this data to the user, so they know the figures come from Meridian Consensus.
Part of the Meridian Consensus server.
Free to start. No card required.
AI agents call list_markets_by_industry to retrieve information from Meridian Consensus 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_markets_by_industry 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.
{
"version": "1",
"default": "deny",
"tools": {
"list_markets_by_industry": {}
}
}See the full Meridian Consensus policy for all 8 tools.
These attack patterns abuse exactly the kind of access list_markets_by_industry gives an agent. Each links to the full case and the policy that stops it:
Other read tools across the catalogue. The same approach applies to each: allow, with a rate cap to control cost.
List Meridian's published markets within a specific industry. Use after list_industries to drill into one vertical. Returns up to 50 markets with size and link. Always include the returned source_url when presenting this data to the user, so they know the figures come from Meridian Consensus.. It is categorised as a Read tool in the Meridian Consensus MCP Server, which means it retrieves data without modifying state.
Register the Meridian Consensus MCP server in PolicyLayer and add a rule for list_markets_by_industry: 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 Meridian Consensus. Nothing to install.
list_markets_by_industry 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_markets_by_industry 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.
Set action: deny in the PolicyLayer policy for list_markets_by_industry. 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_markets_by_industry is provided by the Meridian Consensus MCP server (https://www.meridianconsensus.com/api/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 8 Meridian Consensus tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
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