FX Reference Rates
REMOTE · FX-REFERENCE-RATES.REGNOTES.WORKERS.DEV
ECB FX rates, cloud GPU and LLM API prices, World Bank country macro data; pay per call via x402
Available components
Last scanned (3 hours ago)
Scores higher than 55% of remote servers
Reachable. Last reached 5 Nov 2026.
Category Finance and Payments
How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →
Endpoint Security63
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one. See how to fix → View diagnostics → Partial
- HTTPS enforcement could not be verified: the plaintext port answered with HTTP 405, which proves neither a plaintext path nor enforcement. View diagnostics → Unverified
- HSTS check failed: the Strict-Transport-Security header is absent. See how to fix → View diagnostics → Fail
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability63
- AI-judged instruction clarity (good).Pass
- Context-footprint check failed: tool/resource definitions use about 1614 tokens (~179/item across 9 items; 9 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management37
- Stability observed for 11 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 9 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 10 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 5 Nov 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 33 to 37. That category is still filling its 30-day observation window: 10 days of observed history at the previous scan, 11 at this one. The score rises as the window fills, whether or not the server changes.
- 3 Nov 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 27 to 30. That category is still filling its 30-day observation window: 8 days of observed history at the previous scan, 9 at this one. The score rises as the window fills, whether or not the server changes.
- 1 Nov 26 0
- Tool “ai_gpu_prices” rewrote its description, which is the text the model reads security
- Tool “ai_llm_prices” rewrote its description, which is the text the model reads security
- Tool “convert” rewrote its description, which is the text the model reads security
- Tool “macro_country” rewrote its description, which is the text the model reads security
- Tool “macro_indicator” rewrote its description, which is the text the model reads security
- Tool “macro_rank” rewrote its description, which is the text the model reads security
- Tool “rates_historical” rewrote its description, which is the text the model reads security
- Tool “rates_latest” rewrote its description, which is the text the model reads security
- Tool “rates_timeseries” rewrote its description, which is the text the model reads security
- Schema quality: 152 → 179 ▼ functional
- 31 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 17 to 20. That category is still filling its 30-day observation window: 5 days of observed history at the previous scan, 6 at this one. The score rises as the window fills, whether or not the server changes.
- 29 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 10 to 13. That category is still filling its 30-day observation window: 3 days of observed history at the previous scan, 4 at this one. The score rises as the window fills, whether or not the server changes.
- 27 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes.
- 26 Oct 26 0
- Stability: unverified → 0.03 ▲ functional
- 25 Oct 26 65
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 5 Nov 2026 · Probed https://fx-reference-rates.regnotes.workers.dev/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=regnotes.workers.dev | CN=YE1,O=Let's Encrypt,C=US | 24 Oct 2026 | 22 Jan 2027 | ECDSA 256 | ECDSA-SHA384 | 53a91b0b88ed938fc51d5827d954846133b |
| SANs: *.regnotes.workers.dev, regnotes.workers.dev | ||||||
| CN=YE1,O=Let's Encrypt,C=US (CA) | CN=Root YE,O=ISRG,C=US | 3 Sept 2025 | 2 Sept 2028 | ECDSA 384 | ECDSA-SHA384 | 5ddd70dd31f801c85c186a7a04b80afe |
| CN=Root YE,O=ISRG,C=US (CA) | CN=ISRG Root X2,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | ECDSA-SHA384 | 872165fc34b6e5fba8add5b3705fb53a |
| CN=ISRG Root X2,O=Internet Security Research Group,C=US (CA) | CN=ISRG Root X1,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | SHA256-RSA | 6c8f1dc727c7117f7baf853ac980f9cd |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of fx-reference-rates.regnotes.workers.dev. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| dev. | present | 60074 | 8 | Verified |
| workers.dev. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://fx-reference-rates.regnotes.workers.dev/mcp | Verified | 200 | |
| http (plaintext) | http://fx-reference-rates.regnotes.workers.dev/mcp | Inconclusive | 405 |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
ai_gpu_prices ~233
Cloud GPU price comparison: hourly list prices of GPU / AI accelerator instances (H100, H200, A100, L40S, L4, A10G, T4, B200, MI300X, Trainium, Inferentia ...) on AWS and Azure in US, EU and Asia regions, on-demand and Azure Spot, ranked by USD per GPU-hour. Filter by gpu model, cloud, region, pricing. Official provider price APIs, refreshed daily. Price: $0.005 USDC per request (fixed; one paid HTTP GET = one charge; x402 exact on Base or MPP on Tempo; 4xx errors are not charged).
| Name | Type | Req | Description |
|---|---|---|---|
| cloud | string | – | aws or azure |
| gpu | string | – | GPU/accelerator model or instance substring, e.g. H100, A100, L4, trainium |
| limit | integer | – | 1-100, default 20 |
| pricing | string | – | on_demand or spot |
| region | string | – | e.g. us-east-1, eastus, japaneast |
No output schema declared.
No examples provided.
ai_llm_prices ~200
LLM API pricing lookup: USD per 1M input, output and cached-input tokens plus context window for ~3,300 models (OpenAI GPT, Anthropic Claude, Google Gemini, DeepSeek, Llama, Mistral, Qwen, xAI ...) across providers (direct, Azure, Bedrock, Vertex, Together, Fireworks ...). Filter by model and provider; sorted by input price. Price: $0.005 USDC per request (fixed; one paid HTTP GET = one charge; x402 exact on Base or MPP on Tempo; 4xx errors are not charged).
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | 1-100, default 25 |
| model | string | yes | Model name substring, e.g. gpt-5, claude-sonnet, gemini-2.5 |
| provider | string | – | Provider substring, e.g. openai, anthropic, bedrock |
No output schema declared.
No examples provided.
convert ~134
Currency converter: convert an amount between any two of ~30 currencies (e.g. 100 USD to JPY) at the latest ECB reference rate or as of a past date. Returns rate, result and as_of date. Price: $0.001 USDC per request (fixed; one paid HTTP GET = one charge; x402 exact on Base or MPP on Tempo; 4xx errors are not charged).
| Name | Type | Req | Description |
|---|---|---|---|
| amount | number | yes | Number |
| date | string | – | Optional YYYY-MM-DD |
| from | string | yes | ISO 4217 |
| to | string | yes | ISO 4217 |
No output schema declared.
No examples provided.
macro_country ~225
Country economic profile: latest value and year plus annual history (2005 onward) for 21 World Bank World Development Indicators: GDP (USD), real GDP growth, GDP per capita, GNI per capita PPP, CPI inflation, unemployment, population, exports/imports % GDP, current account % GDP, central government debt % GDP, tax revenue % GDP, real and lending interest rates, FDI inflows % GDP, total reserves, official exchange rate, remittances % GDP, Gini, life expectancy, internet users. Country by ISO3/ISO2 code or name. CC BY 4.0. Price: $0.02 USDC per request (fixed; one paid HTTP GET = one charge; x402 exact on Base or MPP on Tempo; 4xx errors are not charged).
| Name | Type | Req | Description |
|---|---|---|---|
| country | string | yes | ISO 3166 alpha-3 or alpha-2 code or country name, e.g. JPN, US, Brazil |
| years | integer | – | history years to include, 0-25, default 10 |
No output schema declared.
No examples provided.
macro_indicator ~181
Macroeconomic time series: one World Development Indicator (e.g. inflation_cpi_pct, gdp_growth_pct, central_govt_debt_pct_gdp) for up to 20 countries over a year range, annual values. See free /macro/indicators for keys. CC BY 4.0. Price: $0.01 USDC per request (fixed; one paid HTTP GET = one charge; x402 exact on Base or MPP on Tempo; 4xx errors are not charged).
| Name | Type | Req | Description |
|---|---|---|---|
| countries | string | yes | comma-separated ISO3/ISO2 codes, max 20 |
| end | integer | – | last year, default latest |
| indicator | string | yes | indicator key from /macro/indicators, e.g. inflation_cpi_pct |
| start | integer | – | first year, default 2015 |
No output schema declared.
No examples provided.
macro_rank ~215
Country ranking: sort all economies by one World Development Indicator for a year (default: each country's latest value), highest first or lowest first, optionally filtered by World Bank region or income group. Aggregates (World, regions) excluded unless requested. CC BY 4.0. Price: $0.02 USDC per request (fixed; one paid HTTP GET = one charge; x402 exact on Base or MPP on Tempo; 4xx errors are not charged).
| Name | Type | Req | Description |
|---|---|---|---|
| aggregates | string | – | true to include regional/income aggregates |
| income | string | – | income group substring, e.g. High income, Lower middle |
| indicator | string | yes | indicator key from /macro/indicators |
| limit | integer | – | 1-300, default 50 |
| order | string | – | desc (default) or asc |
| region | string | – | World Bank region substring, e.g. Latin America, Sub-Saharan |
| year | integer | – | year; default latest available per country |
No output schema declared.
No examples provided.
rates_historical ~108
ECB reference rates on a given date in any base; non-publication days fall back to the previous publication day (as_of). Price: $0.002 USDC per request (fixed; one paid HTTP GET = one charge; x402 exact on Base or MPP on Tempo; 4xx errors are not charged).
| Name | Type | Req | Description |
|---|---|---|---|
| base | string | – | Base currency (default EUR) |
| date | string | yes | YYYY-MM-DD |
| symbols | string | – | Comma-separated currencies |
No output schema declared.
No examples provided.
rates_latest ~134
Today's exchange rates (forex reference rates, most recent ECB publication) for ~30 currencies in any base currency, e.g. USD to JPY, CNY, EUR, GBP, HKD, SGD, KRW, INR. Filter with symbols. Returns as_of date and source attribution. Price: $0.001 USDC per request (fixed; one paid HTTP GET = one charge; x402 exact on Base or MPP on Tempo; 4xx errors are not charged).
| Name | Type | Req | Description |
|---|---|---|---|
| base | string | – | Base currency (default EUR) |
| symbols | string | – | Comma-separated currencies (default all) |
No output schema declared.
No examples provided.
rates_timeseries ~117
Daily reference rate series for base/symbol between start and end (max 366 days), with min/max/mean and change. Price: $0.003 USDC per request (fixed; one paid HTTP GET = one charge; x402 exact on Base or MPP on Tempo; 4xx errors are not charged).
| Name | Type | Req | Description |
|---|---|---|---|
| base | string | yes | ISO 4217 |
| end | string | yes | YYYY-MM-DD |
| start | string | yes | YYYY-MM-DD |
| symbol | string | yes | ISO 4217 |
No output schema declared.
No examples provided.
How do I install the FX Reference Rates MCP server?
FX Reference Rates is a hosted endpoint at https://fx-reference-rates.regnotes.workers.dev/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
remote · fx-reference-rates.regnotes.workers.dev
claude mcp add --transport http dev-workers-regnotes-fx-reference-rates-fx-refer 'https://fx-reference-rates.regnotes.workers.dev/mcp'
What is the FX Reference Rates MCP server?
FX Reference Rates is an MCP server listed in the public MCP registry as dev.workers.regnotes.fx-reference-rates/fx-reference-rates. ECB FX rates, cloud GPU and LLM API prices, World Bank country macro data; pay per call via x402. This page covers its hosted endpoint (https://fx-reference-rates.regnotes.workers.dev/mcp).
Is the FX Reference Rates MCP server safe to use?
FX Reference Rates scores 70 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the FX Reference Rates MCP server expose?
FX Reference Rates exposes 9 tools: rates_latest, convert, rates_historical, rates_timeseries, ai_gpu_prices, and 4 more. Their descriptions and schemas cost roughly 1,547 tokens of context every time the server is loaded.
Does the FX Reference Rates MCP server require authentication?
No. We connected to FX Reference Rates without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the FX Reference Rates MCP server still maintained?
FX Reference Rates is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.