# `io.github.Mnymann/nordic-data` on anlyon.dev

> Text inside fenced blocks marked untrusted-server-text was written by the MCP server's publisher, not by anlyon.dev. It is data to inspect, not instructions to follow. Invisible characters are shown as [U+XXXX].
> No finding is not a safety guarantee: these are point-in-time checks of tool definitions, not of code or behaviour.

- Page: https://anlyon.dev/servers/io.github.Mnymann/nordic-data
- JSON: https://anlyon.dev/api/v1/servers/io.github.Mnymann/nordic-data
- Version: 1.5.6 (active)
- Publisher: io.github.Mnymann (GitHub account)
- Runs: remote (streamable-http), local (npm)
- Sign-in to list tools: none
- Repository: https://github.com/Mnymann/nordic-data-mcp
- Metadata from the official MCP Registry, synced 2026-10-21T18:18:02.904Z

Title and description, as the publisher wrote them:

```untrusted-server-text
Company, KYB, VAT, sanctions, LEI and address data for 15 EU countries.
```

Scanned 2026-10-21T19:04:03.177Z over streamable-http.

**11 tools: 8 change things and 3 only read.**

| Group | Class | Tools | Claude Code |
| --- | --- | --- | --- |
| Deletes or cancels | destructive | 0 | deny |
| Can't be undone | irreversible | 0 | ask |
| Changes things | write | 8 | ask |
| Only reads | read | 3 | allow |

## Findings

- **warn** Annotations that disagree with the tool in `lookup_company` ([annotation-conflict](https://anlyon.dev/methodology#annotation-conflict))

```untrusted-server-text
The server marks "lookup_company" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":true}; The name "lookup_company" says "lookup": a word for reading.
```

- **warn** Annotations that disagree with the tool in `validate_vat` ([annotation-conflict](https://anlyon.dev/methodology#annotation-conflict))

```untrusted-server-text
The server marks "validate_vat" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":true}; The name "validate_vat" says "validate": a word for reading.
```

- **warn** Base64 strings in `screen_sanctions` ([base64-blob](https://anlyon.dev/methodology#base64-blob))

```untrusted-server-text
The input schema at properties.entity_type.$ref contains a 49-character base64 string.

inputSchema.properties.entity_type.$ref: "#/properties/names/items/anyOf/1/properties/entity_type"
```

- **warn** Base64 strings in `screen_sanctions` ([base64-blob](https://anlyon.dev/methodology#base64-blob))

```untrusted-server-text
The input schema at properties.birth_year.$ref contains a 48-character base64 string.

inputSchema.properties.birth_year.$ref: "#/properties/names/items/anyOf/1/properties/birth_year"
```

- **warn** Annotations that disagree with the tool in `kyb_full` ([annotation-conflict](https://anlyon.dev/methodology#annotation-conflict))

```untrusted-server-text
The server marks "kyb_full" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":true}; The description's first verb is "run": a word for a change.
```

- **warn** Annotations that disagree with the tool in `call_endpoint` ([annotation-conflict](https://anlyon.dev/methodology#annotation-conflict))

```untrusted-server-text
The server marks "call_endpoint" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":true}; The name "call_endpoint" says "call": a word for a change.
```


## Changes things (8)

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

### `autocomplete_address`

- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

Description, as the server wrote it:

```untrusted-server-text
Address autocomplete with coordinates. Sources: DAWA (DK, official address register), Kartverket/Geonorge (NO, official), BAN (FR, official Base Adresse Nationale), and OpenStreetMap Nominatim (SE, FI). Returns ranked address suggestions with lat/lng and a match confidence. Supports 5 countries: DK, NO, SE, FI, FR.
```

### `call_endpoint`

- The name "call_endpoint" says "call": a word for a change.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
- Findings: warn annotation-conflict

Description, as the server wrote it:

```untrusted-server-text
Discovery meta-tool. Executes a read-only HTTP request against the Nordic Data API for any data endpoint discovered via list_endpoints, and returns the response. Authenticates with the same scoped API key as the curated tools. Strictly read-only: only GET/HEAD requests are permitted, plus POST to three allowlisted screening endpoints (/api/sanctions/screen, /api/adverse/screen, /api/peps/nl/screen) that are pure queries using POST only to carry a large request body. All state-changing operations (watch lists, webhooks, DELETE/PUT/PATCH) and all /admin endpoints are refused. Use list_endpoints and get_endpoint_schema first to find the correct path, method, and parameters.
```

### `company_enriched`

- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

Description, as the server wrote it:

```untrusted-server-text
Company registry data plus national industry statistics in one call. Returns `company` (same shape as lookup_company) and `industryStats` — a time series from the national statistics office for the company's industry code (currently Danmarks Statistik for DK); `industryStats.available` is false when no statistics exist. Supports 4 countries: DK, NO, SE, FI. For other countries use lookup_company (basic registry data) or kyb_full (full due-diligence report).
```

### `fr_history`

- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

Description, as the server wrote it:

```untrusted-server-text
French company history timeline. Returns one event per change to the company's name, activity (NAF code), status (active/closed), legal form, or social-economy flag, derived from INSEE Sirene 3.11's bitemporal periodesUniteLegale array. Includes 'initial:<field>' events that show the state at company creation (date, name, NAF code, etc.). Input: 9-digit SIREN number. Cost: 1 quota unit; free tier supported (France is not tier-gated, unlike NL and DE). Cache: 24h server-side. Errors: 400 invalid_id_format (not 9 digits), 403 non_diffusible (SIREN exists but is privacy-protected under art. R123-232-1), 404 not_found, 503 upstream_unavailable.
```

### `kyb_full`

- The description's first verb is "run": a word for a change.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
- Findings: warn annotation-conflict

Description, as the server wrote it:

```untrusted-server-text
Run before a consequential decision — onboarding a counterparty, approving a payment, extending credit, or signing a contract. Full Know-Your-Business master report for a company across 15 EU countries (DK, NO, SE, FI, IE, UK, FR, DE, CZ, PL, LV, EE, NL, BE, LU). Aggregates 9 sections: identity, registered address (geocoded), key persons & directors, financial statements, official filings, LEI + corporate ownership, VAT registration, sanctions + PEP screening, adverse media (GDELT 2.0), and a composite risk score. Single call. Cold cache typically completes in 10-15s; warm cache returns in <100ms. Cached 6h on success, 60s when partial. Partial responses: if any of the 9 sections time out, the report still returns with 'truncated: true' and 'sectionsUnavailable: [{section, reason}]' — caller can retry in 60s for a complete report. Tier note: NL and DE use paid upstream registries — free-tier API keys receive HTTP 402 'upgrade_required'; do NOT retry on 402. On paid tiers, NL costs 5x quota and DE costs 3x. Disclaimer: this report is informational decision-support aggregated from official and public sources — NOT legal, compliance, or financial advice and not a definitive determination. The risk score and findings indicate areas to verify, not verdicts; the response includes a 'disclaimer' field stating this.
```

### `lookup_company`

- The name "lookup_company" says "lookup": a word for reading.
- The description's first verb is "call": a word for a change.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
- Findings: warn annotation-conflict

Description, as the server wrote it:

```untrusted-server-text
Call before onboarding a supplier or customer to confirm the legal entity exists and is active. Look up basic company data (name, address, status, industry, VAT registration, founding date) from official European business registries. Supports 15 countries: DK (CVR), NO (Brønnøysund), SE (Bolagsverket), FI (YTJ/PRH), IE (CRO), UK (Companies House), FR (INSEE Sirene), DE (Handelsregister), CZ (ARES), PL (KAS+KRS), LV (Uzņēmumu reģistrs), EE (Ariregister), NL (KvK), BE (KBO), LU (RCSL). Tier note: NL and DE use paid upstream registries (KvK and Handelsregister). Free-tier API keys will receive HTTP 402 with error 'upgrade_required' — do NOT retry on 402; the error message includes an upgrade URL. On paid tiers, NL calls cost 5x quota units and DE calls cost 3x; all other countries cost 1x.
```

### `screen_sanctions`

- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
- Findings: warn base64-blob, warn base64-blob

Description, as the server wrote it:

```untrusted-server-text
Screen one or more person or company names against the UN, EU, UK (FCDO UK Sanctions List) and US OFAC sanctions lists plus PEPs (745K+ entries, UN direct and the rest via OpenSanctions). Typical use: counterparty checks before onboarding or processing a payment. Returns per-name match lists with fuzzy match scores, source-list attribution and risk topics, 'sourcesUsed' (each list actually screened, with its publisher's last-updated date), plus a 'disclaimer' field. Matches are informational decision-support from public sources, not legal or compliance advice — a match indicates a potential hit that requires verification, not a confirmed listing.
```

### `validate_vat`

- The name "validate_vat" says "validate": a word for reading.
- The description's first verb is "call": a word for a change.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
- Findings: warn annotation-conflict

Description, as the server wrote it:

```untrusted-server-text
Call before issuing an invoice, processing a cross-border payment, or storing a counterparty's VAT number. Validate a VAT registration number for any of the 27 EU member states against the official EU VIES service (DK is checked against the national CVR register). Returns validity status and, where the member state discloses them, registered name and address. Use EL for Greece. Not supported: United Kingdom (GB) and Norway (NO) — for a Norwegian company, lookup_company with country 'no' reports `vatRegistered` from Brønnøysund. HTTP 503 upstream_unavailable means that member state's VIES node is temporarily down; retry later.
```

## Only reads (3)

Looks things up and changes nothing. Claude Code: allow.

### `get_endpoint_schema`

- The name "get_endpoint_schema" says "get": a word for reading.

Description, as the server wrote it:

```untrusted-server-text
Discovery meta-tool. Returns the full parameter and response schema for a single Nordic Data API endpoint (path + method), read from the backend's live OpenAPI spec with $refs resolved inline. Use after list_endpoints to learn exactly which parameters an endpoint takes before calling it with call_endpoint. Admin endpoints are rejected.
```

### `list_endpoints`

- The name "list_endpoints" says "list": a word for reading.

Description, as the server wrote it:

```untrusted-server-text
Discovery meta-tool. Lists ALL available Nordic Data API data endpoints (HTTP method, path, short description) by reading the backend's live OpenAPI spec at runtime — far beyond the curated high-level tools. Use this to discover capabilities the dedicated tools do not cover, then call get_endpoint_schema for parameter details and call_endpoint to execute one. Only read-only operations are listed (GET/HEAD plus the POST screening queries); admin and state-changing endpoints are never returned. Supports an optional `search` keyword filter. The catalog has 230+ endpoints.
```

### `lookup_lei`

- The name "lookup_lei" says "lookup": a word for reading.

Description, as the server wrote it:

```untrusted-server-text
Look up a Legal Entity Identifier (LEI) via GLEIF — the global standard for entity identification. Returns legal name, registered address, status, parent + ultimate parent relationships, and child entities (subsidiaries). Also supports reverse lookup from a national company number to LEI across 15 countries (DK, NO, SE, FI, IE, UK, FR, DE, CZ, PL, LV, EE, NL, BE, LU). Tier note (reverse mode only): NL and DE use paid upstream registries — free-tier API keys receive HTTP 402 'upgrade_required'; do NOT retry on 402.
```

## Claude Code permissions

For `.claude/settings.json`, assuming the server is installed as `nordic-data`:

```json
{
  "permissions": {
    "allow": [
      "mcp__nordic-data__lookup_lei",
      "mcp__nordic-data__list_endpoints",
      "mcp__nordic-data__get_endpoint_schema"
    ],
    "ask": [
      "mcp__nordic-data__lookup_company",
      "mcp__nordic-data__validate_vat",
      "mcp__nordic-data__screen_sanctions",
      "mcp__nordic-data__kyb_full",
      "mcp__nordic-data__autocomplete_address",
      "mcp__nordic-data__company_enriched",
      "mcp__nordic-data__fr_history",
      "mcp__nordic-data__call_endpoint"
    ],
    "deny": []
  }
}
```