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Cnb

  • 4 repo stars
  • Updated July 27, 2026
  • martinhavel/cz-agents-mcp

Official ČNB exchange rates - daily & historical CZK vs EUR, USD, 30+ currencies. For accounting.

About

Official ČNB exchange rates - daily & historical CZK vs EUR, USD, 30+ currencies. For accounting. Exposes 3 MCP tools including dev.cz-agents/cnb, ### `@czagents/ares` (9 tools), lookup_by_ico({ ico })` - full company record, search_companies({ query, city, street, psc, nace, pocet })` - combined search. Install via Claude Desktop, Cursor, or any MCP-compatible client using the upstream server manifest.

  • `lookup_by_ico({ ico })` - full company record
  • `search_companies({ query, city, street, psc, nace, pocet })` - combined search
  • `search_by_address({ street, city, psc })` - all companies at an address
  • `search_by_nace({ nace, city })` - by CZ-NACE activity code
  • `get_statutaries({ ico })` - current statutory body (for due diligence)

Cnb by the numbers

  • Exposes 3 verified tools (MCP introspection)
  • Data as of Jul 28, 2026 (Skillselion catalog sync)
terminal
claude mcp add cnb -- npx -y @czagents/cnb

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repo stars4
Package@czagents/cnb
TransportSTDIO, HTTP
AuthNone
Tools3
Last updatedJuly 27, 2026
Repositorymartinhavel/cz-agents-mcp

How do I connect Cnb to my MCP client?

Official ČNB exchange rates - daily & historical CZK vs EUR, USD, 30+ currencies. For accounting.

Who is it for?

Teams wiring Cnb into Claude, Cursor, or custom agents for finance.

Skip if: Skip when you need a non-MCP SDK or hosted API without stdio/SSE transport.

What you get

Working Cnb MCP server with verified tool registration and client config.

  • Daily and historical official CZK versus EUR, USD, and 30+ currency rates inside agent tool calls
  • Accounting-ready FX figures cited from ČNB via MCP

By the numbers

  • [object Object]
At a glance

Cnb capabilities & compatibility

Capabilities
cnb mcp tool registration · cnb client configuration · cnb agent workflow integration
Use cases
orchestration
Runs
Remote server

Tools 3

Public tool metadata - what this server can do for an agent.

get_rates1 param

Get official CZK exchange rates published by ČNB. Returns all currencies from the daily sheet (~31 majors). Optional `date` parameter (YYYY-MM-DD) for historical rates; otherwise returns latest.

  • datestringOptional ISO date (YYYY-MM-DD) for historical rates. Omit for latest.
convert4 params

Convert an amount between two currencies using official ČNB rates. E.g., convert 100 EUR to CZK, or 50 USD to GBP (goes via CZK cross-rate). Optional `date` for historical conversion.

  • amountnumberrequiredAmount to convert.
  • fromstringrequiredSource currency ISO 4217 code (e.g., "EUR", "USD", "CZK").
  • tostringrequiredTarget currency ISO 4217 code.
  • datestringOptional ISO date for historical rates. Omit for latest.
get_rate2 params

Quick single-currency lookup. Returns just the CZK rate for one currency (or all rates if no code given).

  • codestringrequiredISO 4217 currency code (e.g., "EUR", "USD", "GBP").
  • datestringOptional ISO date for historical rate.
README.md

cz-agents-mcp

CI License: MIT MCP Registry Glama

Model Context Protocol servers for Czech & EU government and business data. Native access to ARES (company registry), ČNB (FX rates), ADIS (VAT-payer status), ISIR (insolvency), EU + OFAC sanctions screening, and EU business registries (GB/SK/PL/NL/DE/FR) — plus a unified due-diligence aggregator that combines them into risk scoring and statutory-chain (UBO) analysis.

Want a hosted, production-ready version? cz-agents.dev — managed API with a 14-day free trial (no credit card). Adds higher quotas, nominee detection, risk timeline, address crowding, watchlist monitoring, and a web compliance dashboard. Your self-hosted config keeps working after upgrade — same endpoints, same token format.

Landing page: cz-agents.dev · Listed in: official MCP Registry under DNS-verified namespace dev.cz-agents/*

Available servers

Package Source Status
@czagents/ares ARES — Czech Business Register ✅ live
@czagents/cnb ČNB — daily FX rates ✅ live
@czagents/sanctions EU + OFAC sanctions screening (KYC/AML) ✅ live
@czagents/isir ISIR — Czech insolvency register ✅ live
@czagents/adis ADIS — unreliable VAT payer (nespolehlivý plátce DPH) + transparent accounts ✅ live
@czagents/dd Due-diligence aggregator (ARES + sanctions + ISIR + ADIS + statutory chain) ✅ live
@czagents/realestate Czech distress real estate intelligence (ISIR sales + portál dražeb) ✅ live (v0.1)
@czagents/eu-registry EU business registries — GB (Companies House), SK, PL, NL, DE, FR via GLEIF/LEI ✅ live
@czagents/payqr Payment QR codes (SPAYD / EPC-GiroCode) — bonus utility ✅ live

Premium tier — closed source

Server What it adds Where
dev.cz-agents/ddplus 8-indicator nominee director detection (cross-DB), phoenix recidiva, enriched risk timeline with AI narrative, recursive linked-entities risk analysis (depth 1-3), shell-firm address crowding with provider detection, daily watchlist monitoring with email digest Hosted-only at ddplus.cz-agents.dev/mcp — see pricing

Quick start

Claude Desktop / Cursor (stdio)

{
  "mcpServers": {
    "ares":      { "command": "npx", "args": ["-y", "@czagents/ares"] },
    "cnb":       { "command": "npx", "args": ["-y", "@czagents/cnb"] },
    "sanctions": { "command": "npx", "args": ["-y", "@czagents/sanctions"], "env": { "SANCTIONS_DB": "/path/to/sanctions.db" } },
    "isir":      { "command": "npx", "args": ["-y", "@czagents/isir"], "env": { "ISIR_SOAP_ENABLED": "1" } },
    "adis":      { "command": "npx", "args": ["-y", "@czagents/adis"], "env": { "ADIS_SOAP_ENABLED": "1" } },
    "dd":          { "command": "npx", "args": ["-y", "@czagents/dd"], "env": { "SANCTIONS_DB": "/path/to/sanctions.db", "ADIS_SOAP_ENABLED": "1" } },
    "eu-registry": { "command": "npx", "args": ["-y", "@czagents/eu-registry"] },
    "payqr":       { "command": "npx", "args": ["-y", "@czagents/payqr"] }
  }
}

Remote / Streamable HTTP

{
  "mcpServers": {
    "ares":        { "url": "https://ares.cz-agents.dev/mcp" },
    "cnb":         { "url": "https://cnb.cz-agents.dev/mcp" },
    "sanctions":   { "url": "https://sanctions.cz-agents.dev/mcp" },
    "isir":        { "url": "https://isir.cz-agents.dev/mcp" },
    "adis":        { "url": "https://adis.cz-agents.dev/mcp" },
    "dd":          { "url": "https://dd.cz-agents.dev/mcp" },
    "eu-registry": { "url": "https://eu-registry.cz-agents.dev/mcp" },
    "payqr":       { "url": "https://payqr.cz-agents.dev/mcp" }
  }
}

Tools

@czagents/ares (9 tools)

  • lookup_by_ico({ ico }) — full company record
  • search_companies({ query, city, street, psc, nace, pocet }) — combined search
  • search_by_address({ street, city, psc }) — all companies at an address
  • search_by_nace({ nace, city }) — by CZ-NACE activity code
  • get_statutaries({ ico }) — current statutory body (for due diligence)
  • validate_dic({ dic }) — DIČ format + MOD11 checksum
  • check_vat_payer({ ico }) — VAT registration + transparent accounts
  • get_bank_accounts({ ico }) — DPH-published accounts
  • get_history({ ico }) — previous names, address changes

@czagents/cnb (3 tools)

  • get_rates({ date? }) — full daily FX sheet
  • convert({ amount, from, to, date? }) — CZK-crossed conversion
  • get_rate({ code, date? }) — single currency rate

@czagents/sanctions (5 tools)

  • search_person({ name, dob?, nationality?, threshold? }) — fuzzy KYC screen against EU + OFAC
  • search_entity({ name, country?, threshold? }) — entity / company screen
  • check_ico({ ico, name? }) — direct lookup of a Czech IČO on sanctions lists
  • get_listing({ id }) — full record by ${source}:${id}
  • list_recent_updates({ since, source? }) — daily monitoring (added/removed/modified)

@czagents/isir (3 tools)

  • check_ico_insolvency({ ico }) — direct lookup of a Czech IČO in the insolvency register
  • search_person_insolvency({ ico?, rc?, dob?, firstname?, surname? }) — find a person by IČO, birth number, or name + DOB
  • poll_isir_events({ since }) — append-only event feed for daily monitoring

@czagents/adis (3 tools)

  • check_dph_payer({ ico OR dic }) — full reliability check via ADIS V2: status (ANO/NE/NENALEZEN), subject type, name, address, transparent bank accounts (§ 96a ZDPH), unreliable-since date
  • check_bulk_dph_payer({ icos[] OR dics[] }) — batch up to 100 subjects (lighter response, status + accounts only)
  • list_unreliable_payers() — full list of currently unreliable payers (50–100 MB, intended for daily mirroring)

@czagents/dd (3 tools)

  • get_dd_report({ ico, depth }) — unified ARES + sanctions + ISIR report with risk score
  • get_risk_score({ ico }) — fast 0–100 score + top red flags
  • get_statutory_chain({ ico, max_depth }) — UBO / shell-company tree walk

@czagents/eu-registry (3 tools)

  • get_eu_company({ country, id }) — company record from GB (Companies House), SK (ORSR), PL (KRS), NL/DE/FR (GLEIF/LEI), SIRENE
  • get_eu_parent({ ico }) — find EU parent/group via ARES → GLEIF LEI matching with confidence scoring
  • get_eu_dd_report({ country, id }) — EU DD report: company facts + EU + OFAC sanctions check

What this is good for

A toolkit for compliance, KYC/AML, accounting and cross-border checks over Czech & EU registries:

  • VAT & invoicing — verify VAT-payer status (ADIS) and convert at official ČNB FX rates before booking.
  • Counterparty screening — ARES identity, EU + OFAC sanctions, ISIR insolvency.
  • Due diligence (flagship) — the @czagents/dd aggregator combines the above into a risk score, statutory-chain / UBO walk, and EU-parent lookup.
  • Cross-border — company lookups across GB / SK / PL / NL / DE / FR registries (@czagents/eu-registry).

Use a single-source server when you need just one dataset; use the due-diligence aggregator for combined, scored output.

Example prompts the aggregator handles well:

  • KYC pre-invoice"Before we send a 350 000 Kč invoice to IČO 11122234, flag any insolvency, sanctions, unreliable-VAT-payer status, or nominee-director red flags."
  • Vendor onboarding"Run KYC on this prospective supplier and tell me if anything looks off. Use the full statutory chain."
  • M&A pre-due-diligence"Generate a DD report on the acquisition target and walk the statutory body two levels deep — flag any insolvent firms in the network."

Score & validation

Glama Score

A/A/A on Glama (quality / security / license), claimed and maintained. Listed in the official MCP registry under DNS-verified namespace dev.cz-agents/*.

Further reading

License

MIT © Martin Havel — see LICENSE

Recommended MCP Servers

How it compares

Official-rate MCP integration, not a spreadsheet skill or payment processor.

FAQ

What does Cnb do?

Official ČNB exchange rates - daily & historical CZK vs EUR, USD, 30+ currencies. For accounting.

When should I use Cnb?

User asks about Cnb mcp, official čnb exchange rates - daily & historical czk vs eur, usd, 30+ .

Is this MCP server safe to install?

Review the Security Audits panel on this page before installing in production.

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