Map financial instrument identifiers between different ID systems using Bloomberg's OpenFIGI service. Converts between ticker symbols, ISINs, CUSIPs, and FIGIs in a single call. Use this tool when: - You have a ticker and need the ISIN or CUSIP (or vice versa) - You are normalizing instrument IDs...
Part of the Fintel Discovery — Financial Intelligence for AI Agents server.
Free to start. No card required.
AI agents call MapInstrumentIds to retrieve information from Fintel Discovery — Financial Intelligence for AI Agents 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 MapInstrumentIds 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": {
"MapInstrumentIds": {}
}
}See the full Fintel Discovery — Financial Intelligence for AI Agents policy for all 32 tools.
These attack patterns abuse exactly the kind of access MapInstrumentIds 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.
Map financial instrument identifiers between different ID systems using Bloomberg's OpenFIGI service. Converts between ticker symbols, ISINs, CUSIPs, and FIGIs in a single call. Use this tool when: - You have a ticker and need the ISIN or CUSIP (or vice versa) - You are normalizing instrument IDs when combining data from EDGAR, Yahoo Finance, and other sources that use different ID schemes - You need to identify what exchange a security trades on Supported idType values: - 'TICKER': Stock ticker symbol (e.g. 'AAPL') - 'ID_ISIN': ISIN (e.g. 'US0378331005') - 'ID_CUSIP': CUSIP (e.g. '037833100') - 'ID_FIGI': Bloomberg FIGI Include 'exchCode': 'US' to target US exchanges for ticker lookups. Source: Bloomberg OpenFIGI API. No API key required (optional key raises rate limits).. It is categorised as a Read tool in the Fintel Discovery — Financial Intelligence for AI Agents MCP Server, which means it retrieves data without modifying state.
Register the Fintel Discovery — Financial Intelligence for AI Agents MCP server in PolicyLayer and add a rule for MapInstrumentIds: 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 Fintel Discovery — Financial Intelligence for AI Agents. Nothing to install.
MapInstrumentIds 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 MapInstrumentIds 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 MapInstrumentIds. 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.
MapInstrumentIds is provided by the Fintel Discovery — Financial Intelligence for AI Agents MCP server (https://ai.fin-discovery.com/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 32 Fintel Discovery — Financial Intelligence for AI Agents tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
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