
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)
claude mcp add cnb -- npx -y @czagents/cnbAdd your badge
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| repo stars | ★ 4 |
|---|---|
| Package | @czagents/cnb |
| Transport | STDIO, HTTP |
| Auth | None |
| Tools | 3 |
| Last updated | July 27, 2026 |
| Repository | martinhavel/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]
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 paramGet 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 paramsConvert 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 paramsQuick 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
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 recordsearch_companies({ query, city, street, psc, nace, pocet })— combined searchsearch_by_address({ street, city, psc })— all companies at an addresssearch_by_nace({ nace, city })— by CZ-NACE activity codeget_statutaries({ ico })— current statutory body (for due diligence)validate_dic({ dic })— DIČ format + MOD11 checksumcheck_vat_payer({ ico })— VAT registration + transparent accountsget_bank_accounts({ ico })— DPH-published accountsget_history({ ico })— previous names, address changes
@czagents/cnb (3 tools)
get_rates({ date? })— full daily FX sheetconvert({ amount, from, to, date? })— CZK-crossed conversionget_rate({ code, date? })— single currency rate
@czagents/sanctions (5 tools)
search_person({ name, dob?, nationality?, threshold? })— fuzzy KYC screen against EU + OFACsearch_entity({ name, country?, threshold? })— entity / company screencheck_ico({ ico, name? })— direct lookup of a Czech IČO on sanctions listsget_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 registersearch_person_insolvency({ ico?, rc?, dob?, firstname?, surname? })— find a person by IČO, birth number, or name + DOBpoll_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 datecheck_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 scoreget_risk_score({ ico })— fast 0–100 score + top red flagsget_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), SIRENEget_eu_parent({ ico })— find EU parent/group via ARES → GLEIF LEI matching with confidence scoringget_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/ddaggregator 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
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
- Building MCP servers for a country that isn't in the dataset — design rationale, gotchas (MOD11, ARES Swagger bugs), and how this pattern adapts MCP to non-English locales.
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.