get_live_fx_rates

SERVERTanod SOURCEhttps://tanod.dev/mcp

Low RISK CLASS

Category Read

Parameters 20 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/dev-tanod-tanod/get-live-fx-rates.md

WHAT IT DOES

What get_live_fx_rates does on Tanod

AI agents call get_live_fx_rates to retrieve information from Tanod 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
`pairs`	object	—	Pairs in market convention, for example EURUSD (USD per EUR) or USDMXN (MXN per USD). Omit for every supported pair. Exchange quotes cover EURUSD, GBPUSD, USDJP
`amount_usd`	object	—	Reference trade size in USD for the price-impact measurement, 100 to 100000 (default 1000). A pair whose impact at this size is 1% or more is listed under `thin

Parameters from the server's own tool schema.

RISK

Why get_live_fx_rates is rated Low

Even though get_live_fx_rates only reads data, uncontrolled read access leaks sensitive information and racks up API costs: an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs get_live_fx_rates safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Tanod, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For get_live_fx_rates, this is the rule to start with:

get_live_fx_rates Allowed

get_live_fx_rates is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "get_live_fx_rates": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Tanod, apply this rule, and every get_live_fx_rates call is checked against it from then on.

FAQ

Questions about get_live_fx_rates

What does the get_live_fx_rates tool do? +

utilpeek: Use when an agent needs on-chain EUR/GBP/MXN/BRL/CAD/SGD/ZAR/IDR vs USD or exchange quotes for 8 pairs, not ECB. For the ECB fix or a past date use get_fx_rates. Returns on-chain FX bid/ask/mid with ECB deviation_pct; indicative quotes from a regulated exchange for EURUSD, GBPUSD, USDJPY, AUDUSD, USDCAD, USDCHF, EURGBP, EURJPY (exchange_quotes). USDCHF/EURGBP/EURJPY exchange-only; USDCAD also on-chain. Matching gap_pct in exchange_gaps. Indicative, not dealable or synchronized arbitrage. Pools cached 15 s; thin/errors reported. Exchange cache 60 s; stale=true data kept at most 300 s. as_of/age_s: fetch age, not venue age; venue_timestamp null. Exchange-only empty: 503 exchange_unavailable (not charged). Unknown pair: 422 (not charged). Typically 2 to 4 s (two chain reads). Price: USD 0.002. Free: 10 utilpeek calls per IP per UTC day. Docs: https://tanod.dev/learn/live-fx-rates-api.html. It is categorised as a Read tool in the Tanod MCP Server, which means it retrieves data without modifying state.

What parameters does get_live_fx_rates accept? +

get_live_fx_rates accepts 2 parameters: pairs, amount_usd. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on get_live_fx_rates? +

Register the Tanod MCP server in PolicyLayer and add a rule for get_live_fx_rates: 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 Tanod. Nothing to install.

What risk level is get_live_fx_rates? +

get_live_fx_rates is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit get_live_fx_rates? +

Yes. Add a rate_limit block to the get_live_fx_rates 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 get_live_fx_rates completely? +

Set action: deny in the PolicyLayer policy for get_live_fx_rates. 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 get_live_fx_rates? +

get_live_fx_rates is provided by the Tanod MCP server (https://tanod.dev/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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