NBG Rates (National Bank of Georgia)

by akalongman · remote · local (npm) · no sign-in to list tools · v0.7.0 · published by GitHub user akalongman

GEL exchange rates from the National Bank of Georgia with per-unit values. Not affiliated with NBG.

Final · 2Changes · 1

Compare Registry entry

5 tools: 2 do something that can't be undone, 1 change things and 2 only read.

Scanned Oct 21, 2026

Deletes or cancels0Claude Code: deny
Can't be undone2Claude Code: ask: see these tools
Changes things1Claude Code: ask: see these tools
Only reads2Claude Code: allow: see these tools

3 checks matched something in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http nbg-rates https://nbg-rates.env.ge/mcp

Findings

Matches of fixed checks, with the text they matched.

3 warn

Warnnbg_convert
The server marks "nbg_convert" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".
Matched text
annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":true}; The name "nbg_convert" says "convert": a word for a change.
What this check looks for
Warnnbg_convert_many
The server marks "nbg_convert_many" read-only (readOnlyHint: true), and its own name, description or input give the class "write".
Matched text
annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":true}; The name "nbg_convert_many" says "convert": a word for a change.
What this check looks for
Warnnbg_rate_history
The server marks "nbg_rate_history" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".
Matched text
annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":true}; The input addresses people (input.to): what it sends cannot be taken back.
What this check looks for

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

5 tools

Can't be undone 2Sends, pays, publishes or merges: once done, it cannot be taken back.Claude Code: ask

nbg_convertConverts an amount between two currencies using the official NBG rate in force on a calendar date.1 finding
Why it is in this group
- The name "nbg_convert" says "convert": a word for a change.
- The input addresses people (input.to): what it sends cannot be taken back.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
Findings
- Warn
  The server marks "nbg_convert" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".
  Matched text
  annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":true}; The name "nbg_convert" says "convert": a word for a change.
  What this check looks for
Description, as the server wrote it
Converts an amount between two currencies using the official NBG rate in force on a calendar date. Either side may be GEL; a pair without GEL is converted through GEL (via: "GEL"). Show resultRounded as the amount; result is the unrounded value for further calculation. Dates are calendar days in Tbilisi; the default is today. NBG sets a rate on business days around 17:00 Tbilisi time, valid from the next calendar day until the next rate, so after 17:00 tomorrow can be requested by date. Sundays, Mondays and days after a public holiday have no rate of their own: the rate in force was set earlier and is returned with carriedOver true and effectiveDate set to the day it took effect. Quote effectiveDate when carriedOver is true. A date whose rate NBG has not published yet returns an error, never a guess.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: true
nbg_rate_historyOfficial NBG rate of one currency (GEL per one unit) in force on every calendar day of an inclusive range of at most 366 days.1 finding
Why it is in this group
- The input addresses people (input.to): what it sends cannot be taken back.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
Findings
- Warn
  The server marks "nbg_rate_history" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".
  Matched text
  annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":true}; The input addresses people (input.to): what it sends cannot be taken back.
  What this check looks for
Description, as the server wrote it
Official NBG rate of one currency (GEL per one unit) in force on every calendar day of an inclusive range of at most 366 days. Dates are calendar days in Tbilisi. Days without a rate of their own (Sundays, Mondays and days after a public holiday; before September 2021 NBG set a rate for every calendar day) carry the earlier rate. Days whose own rate is in force contain only date and rate; a carried-over day adds effectiveDate and carriedOver: true. Quote effectiveDate when carriedOver is true. A range reaching a date NBG has not published yet returns an error. summary holds the first, last, change, lowest and highest rate with their dates, and the average over the calendar days, computed by the server: report those rather than deriving them. One NBG request per call.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: true

Changes things 1Creates or changes something that can be changed back.Claude Code: ask

nbg_convert_manyConverts a list of amounts, each at the official NBG rate in force on its own date: one call for a list of invoices.1 finding
Why it is in this group
- The name "nbg_convert_many" says "convert": a word for a change.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
Findings
- Warn
  The server marks "nbg_convert_many" read-only (readOnlyHint: true), and its own name, description or input give the class "write".
  Matched text
  annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":true}; The name "nbg_convert_many" says "convert": a word for a change.
  What this check looks for
Description, as the server wrote it
Converts a list of amounts, each at the official NBG rate in force on its own date: one call for a list of invoices. Items are answered independently; a bad date or code fails only its item, with the error text in that item. total is present when every converted item has the same target currency and covers the converted items only; call it partial when skipped is not 0. Once NBG stops answering, the remaining dates fail with the same error without being asked. Show resultRounded as the amount; result is the unrounded value for further calculation. Dates are calendar days in Tbilisi; the default is today. NBG sets a rate on business days around 17:00 Tbilisi time, valid from the next calendar day until the next rate, so after 17:00 tomorrow can be requested by date. Sundays, Mondays and days after a public holiday have no rate of their own: the rate in force was set earlier and is returned with carriedOver true and effectiveDate set to the day it took effect. Quote effectiveDate when carriedOver is true. A date whose rate NBG has not published yet returns an error, never a guess.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: true

Only reads 2Looks things up and changes nothing.Claude Code: allow

nbg_get_ratesOfficial National Bank of Georgia (NBG) exchange rates of the Georgian lari (GEL) in force on one calendar date.No findings
Why it is in this group
- The name "nbg_get_rates" says "get": a word for reading.
Description, as the server wrote it
Official National Bank of Georgia (NBG) exchange rates of the Georgian lari (GEL) in force on one calendar date. Every rate is GEL per ONE unit of the currency (NBG quotes some currencies per 10, 100, 1000 or 10000 units; the raw pair is returned as nbgQuantity and nbgRate). Dates are calendar days in Tbilisi; the default is today. NBG sets a rate on business days around 17:00 Tbilisi time, valid from the next calendar day until the next rate, so after 17:00 tomorrow can be requested by date. Sundays, Mondays and days after a public holiday have no rate of their own: the rate in force was set earlier and is returned with carriedOver true and effectiveDate set to the day it took effect. Quote effectiveDate when carriedOver is true. A date whose rate NBG has not published yet returns an error, never a guess. When nbgQuantity is not 1, state NBG's quoted form first, nbgRate GEL per nbgQuantity units (for example 1.6452 GEL per 100 JPY), and the per-unit rate beside it: that quoted form is what nbg.gov.ge and accounting software show.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: true
nbg_list_currenciesLists every currency NBG publishes a GEL rate for today, with its name and the unit quantity NBG quotes it in.No findings
Why it is in this group
- The name "nbg_list_currencies" says "list": a word for reading.
Description, as the server wrote it
Lists every currency NBG publishes a GEL rate for today, with its name and the unit quantity NBG quotes it in. NBG quoted other currencies in the past, so a code missing here may still have historical rates. nbgQuantity is the unit count NBG quotes the raw rate for (JPY is quoted as 1.6452 GEL per 100 JPY); for the rates themselves call nbg_get_rates.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: true

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Install

Pinned to version 0.7.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http nbg-rates https://nbg-rates.env.ge/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json

{
  "permissions": {
    "allow": [
      "mcp__nbg-rates__nbg_get_rates",
      "mcp__nbg-rates__nbg_list_currencies"
    ],
    "ask": [
      "mcp__nbg-rates__nbg_convert",
      "mcp__nbg-rates__nbg_convert_many",
      "mcp__nbg-rates__nbg_rate_history"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as nbg-rates. Review it before you use it.

Keep track

Get told when this server's tools change: a new tool, a new description, a new class.

https://anlyon.dev/servers/io.github.akalongman/nbg-rates/changes.xml

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Source: MCP Registry · repository. Synced Oct 21, 2026, 18:22 UTC.

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