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Directory / CurrencyCore

CurrencyCore

Q: Is CurrencyCore MCP server safe?

QAmcp's test on 11 Nov 2026: None of the hidden-instruction wordings we know were found in its 14 tool descriptions. Its error messages showed no secrets or internal details. All 14 of its tools are labeled read-only. Overall it scored 95/100 on 11 Nov 2026. A test can only see what the server shows from outside, not what it does with your data behind the scenes. Connect servers from makers you trust.

by currency-core.com · https://mcp.currency-core.com/mcp

Currency rates, history from 1949, IMF PPP, and FX analytics for AI agents.

14 tools✓ all read-only✓ no account neededPricing: on their site

See pricing →Visit website

95 /100

PASS · WITH NOTES

Partial: 11 of 12 checks · 11 Nov 2026

Test it now for current results

At a glance

Runs where: On their server. What you send to it goes to them.
What you need: Nothing: it answered without a login
Tools: 14 tools
Its own safety labels: 14 read-only
Memory it takes: About 3,300 tokens of your AI's memory, just for its tool descriptions
Largest answer: About 13.3 KB in our test
Speed: Average answer in our test: 293 ms

Tokens are an estimate: the characters in its tool names, descriptions and inputs, divided by 4. The exact number depends on your AI model. Safety labels are what the server says about itself. From our latest test, 11 Nov 2026.

Is CurrencyCore MCP server safe?

None of the hidden-instruction wordings we know were found in its 14 tool descriptions.
Its error messages showed no secrets or internal details.
All 14 of its tools are labeled read-only.
Overall it scored 95/100 on 11 Nov 2026.

A test can only see what the server shows from outside, not what it does with your data behind the scenes. Connect servers from makers you trust.

What this test does not check

Its source code and packages.
What a tool quietly does behind the scenes, such as writing a file or calling another service.
Instructions hidden inside live tool answers. We only look for those in tool descriptions.
Hidden instructions worded in a way our list doesn't know yet.
Tools that could change something. Those are read, never run.

What QAmcp can and can't see · How to tell if an MCP server is safe · Hidden instructions · Prompt injection

Known security advisories

Not looked up yet. QAmcp tests how a server behaves. It does not scan source code.

What it can do

14 tools, in the server's own words.

list_countriesread-only

The supported countries and their official currencies.

list_currenciesread-only

The full list of supported ISO 4217 currencies.

convertread-only

Convert an amount between currencies, optionally PPP-adjusted.

get_ratesread-only

The full exchange-rate snapshot for a date (USD base).

get_rates_by_baseread-only

The same snapshot re-expressed against any base currency.

get_historyread-only

A single currency's daily rate time series over a date range.

analyze_historyread-only

Trends, comparisons & 'movers': % change, strength, and min/max/avg over a window.

get_ppp_factorread-only

A single country's purchasing-power-parity conversion factor for a year (IMF World Economic Outlook).

analyze_pppread-only

PPP over time: how a country's purchasing-power-parity factor changed, comparing countries, or 'movers'.

analyze_volatilityread-only

Annualized volatility of a currency vs a base, or a stability ranking of the liquid currencies.

analyze_correlationread-only

Correlation of each currency's daily returns with a base currency's, over a window.

analyze_drawdownread-only

Maximum peak-to-trough decline vs a base (with peak/trough/recovery), or a drawdown ranking.

analyze_safe_havenread-only

Ranks currencies by a composite safe-haven score (low volatility + shallow drawdown + 2008-crisis resilience).

analyze_mean_reversionread-only

Ranks currencies by how strongly they revert to their mean (crossing frequency + reversion half-life).

Test results

Safe mode: only tools labeled read-only were run. How the test works

!
Ready for the newest MCP version
1 warning
- !Uses an older MCP version (2025-11-25). It works today, but it isn't on the July 2026 version (2026-07-28) yet.
note
!
Follows MCP best practices (not scored yet)
1 tip (not scored)
- !2 tools answer with structured data but don't declare its shape (outputSchema): list_countries, list_currencies. If those answers change shape, nothing can catch it; with a schema, every answer is checked.
note
✓
ConnectsConnected in 678 ms
pass
✓
Lists its toolsFound 14 tools
pass
✓
Every tool is describedAll 14 tools and their inputs are described
pass
✓
Tools are labeled safe or dangerousEvery tool has a safety label
pass
✓
No known hidden instructionsNone of the hidden-instruction wordings we know were found in tool descriptions. New wordings can get past this check.
pass
✓
Tools work with good inputs
All good
- ✓list_countries: Worked (522 ms)
- ✓list_currencies: Worked (64 ms)
- –get_rates: Needs you to sign in, so it was not tested (not counted against the server)
- –get_rates_by_base: Needs you to sign in, so it was not tested (not counted against the server)
- –get_history: Needs you to sign in, so it was not tested (not counted against the server)
- –analyze_history: Needs you to sign in, so it was not tested (not counted against the server)
- –get_ppp_factor: Needs you to sign in, so it was not tested (not counted against the server)
- –analyze_ppp: Needs you to sign in, so it was not tested (not counted against the server)
- and 6 more
pass
✓
Fast enough
All good
- ✓Connecting took 678 ms
- ✓Listing tools took 89 ms
- ✓Average tool answer: 293 ms
- ✓list_countries: Slowest tool: list_countries (522 ms)
pass
✓
No secrets leakedChecked 26 error messages: no secrets or internal details
pass
✓
Resources and prompts work
All good (41 resources, 4 prompts)
- ✓Opened 10 of 10 resources (a sample of 10 of 41)
- ✓An address that does not exist gets a clean "not found" error
- ✓Opened 4 of 4 prompts
pass
–
Bad inputs give a clean error
Not tested
- –get_rates: Needs you to sign in, so bad inputs were not tested
- –get_rates_by_base: Needs you to sign in, so bad inputs were not tested
- –get_history: Needs you to sign in, so bad inputs were not tested
- –analyze_history: Needs you to sign in, so bad inputs were not tested
- –get_ppp_factor: Needs you to sign in, so bad inputs were not tested
- –analyze_ppp: Needs you to sign in, so bad inputs were not tested
- –analyze_volatility: Needs you to sign in, so bad inputs were not tested
- –analyze_correlation: Needs you to sign in, so bad inputs were not tested
- and 3 more
not tested
–
Tools work togetherNo tool's answer could be fed into another tool, so there were no chains to test (not counted either way)
not tested

Test it yourself

Free and open source. Same checks, same score.

npx qamcp-cli https://mcp.currency-core.com/mcp

Show this score on GitHub

Free for every server in the directory. Paste this into your README: the badge shows the score from our latest test.

[![QAmcp score](https://qamcp.dev/s/com-currency-core-currency.svg)](https://qamcp.dev/s/com-currency-core-currency.html)

Score over time

11 Nov 202695

One test so far. New tests will show here.

Reviews

Coming soon: reviews from people who use CurrencyCore, signed in with GitHub, one per person. Reviews never change the score.

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