finance_forex
Returns live FX rate (bid/ask/mid) for any 6-letter pair. ECB reference rates via Frankfurter. For treasury, payment, ar Cost: $0.005–$0.05 USDC on Base per call.
This record as markdown: /tools/com-gocreativeai-omnicall-agent-tools/finance-forex.md
What finance_forex does on Omnicall — Agent Tools Gateway
AI agents call finance_forex to retrieve information from Omnicall — Agent Tools Gateway without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
arg | string | Yes |
Parameters from the server's own tool schema.
Why finance_forex is rated Low
This tool retrieves foreign exchange rate data (bid, ask, mid prices) from ECB reference rates via Frankfurter API. It is a read-only operation that does not execute trades, move funds, or modify any state. While the server operates on a pay-per-call model and charges USDC, the tool itself does not commit financial obligations or move money—it only fetches market data.
From the tool's definition 'Returns live FX rate (bid/ask/mid)' — purely data retrieval with no modification, deletion, or financial transaction execution. The tool queries and returns exchange rate information only.
Attacks that exploit this kind of access
The rule that runs finance_forex safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Omnicall — Agent Tools Gateway, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For finance_forex, this is the rule to start with:
finance_forex is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Omnicall — Agent Tools Gateway, apply this rule, and every finance_forex call is checked against it from then on.
Questions about finance_forex
Returns live FX rate (bid/ask/mid) for any 6-letter pair. ECB reference rates via Frankfurter. For treasury, payment, ar Cost: $0.005–$0.05 USDC on Base per call. It is categorised as a Read tool in the Omnicall — Agent Tools Gateway MCP Server, which means it retrieves data without modifying state.
finance_forex accepts 1 parameter: arg. Required: arg. The full parameter table on this page comes from the server's own tool schema.
Register the Omnicall — Agent Tools Gateway MCP server in PolicyLayer and add a rule for finance_forex: 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 Omnicall — Agent Tools Gateway. Nothing to install.
finance_forex 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 finance_forex 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 finance_forex. 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.
finance_forex is provided by the Omnicall — Agent Tools Gateway MCP server (https://omnicall.gocreativeai.com/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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