# SweKit - Swedish validators (remote · swekit-api.zenith-ops.workers.dev)

Swedish personnummer/orgnr/bankgiro/OCR validation, kontonummer to IBAN, bankdagar.

- Trust score: 74/100 (medium)
- Change this week: +3
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- remote · `swekit-api.zenith-ops.workers.dev`: 74/100 (this document), [markdown](https://verifymcp.io/servers/dev-workers-zenith-ops-swekit-api-swekit/swekit-api.md), [page](https://verifymcp.io/servers/dev-workers-zenith-ops-swekit-api-swekit/swekit-api)

## Channel facts

- Endpoint: `https://swekit-api.zenith-ops.workers.dev/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `0.1.0`

## Trust breakdown

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. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-11-05.

- **Endpoint Security**: 63/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - No authorisation is required to call this server. Nothing on it is marked destructive, but we can't show that an anonymous caller can only read: full credit needs the server to list at least one tool and every tool to be verifiably read-only. We use a best-effort check of tool names and descriptions to tell read-only tools from tools that change things, so some genuinely read-only tools may not get full credit. Names that start with a read verb (get, list, read, search and similar) and accurate readOnlyHint annotations help. Meet that to earn full credit, or require authorisation.
  - HTTPS enforcement could not be verified: the plaintext port answered with HTTP 405, which proves neither a plaintext path nor enforcement.
  - HSTS check failed: the Strict-Transport-Security header is absent.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 71/100
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 743 tokens (~57/item across 13 items; 13 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 57/100
  - Stability observed for 17 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% of tool parameters carry a description.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 13 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 14 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### How do I install the SweKit - Swedish validators MCP server?

SweKit - Swedish validators is a hosted endpoint at https://swekit-api.zenith-ops.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.

### Claude

```bash
claude mcp add --transport http dev-workers-zenith-ops-swekit-api-swekit 'https://swekit-api.zenith-ops.workers.dev/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "dev-workers-zenith-ops-swekit-api-swekit": {
      "url": "https://swekit-api.zenith-ops.workers.dev/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "dev-workers-zenith-ops-swekit-api-swekit": {
      "type": "http",
      "url": "https://swekit-api.zenith-ops.workers.dev/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.dev-workers-zenith-ops-swekit-api-swekit]
url = "https://swekit-api.zenith-ops.workers.dev/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "dev-workers-zenith-ops-swekit-api-swekit": {
      "type": "remote",
      "url": "https://swekit-api.zenith-ops.workers.dev/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add dev-workers-zenith-ops-swekit-api-swekit --url 'https://swekit-api.zenith-ops.workers.dev/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  dev-workers-zenith-ops-swekit-api-swekit:
    url: "https://swekit-api.zenith-ops.workers.dev/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "dev-workers-zenith-ops-swekit-api-swekit": {
      "Transport": "http",
      "Url": "https://swekit-api.zenith-ops.workers.dev/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add dev-workers-zenith-ops-swekit-api-swekit -t streamable-http -u 'https://swekit-api.zenith-ops.workers.dev/mcp'
```

### Other

```json
{
  "mcpServers": {
    "dev-workers-zenith-ops-swekit-api-swekit": {
      "type": "http",
      "url": "https://swekit-api.zenith-ops.workers.dev/mcp"
    }
  }
}
```

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-11-05 (score 74, +1)

No change was recorded against any check on this day. Stability & Change Management went from 53 to 57. That category is still filling its 30-day observation window: 16 days of observed history at the previous scan, 17 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-11-02 (score 73, +1)

No change was recorded against any check on this day. Stability & Change Management went from 43 to 47. That category is still filling its 30-day observation window: 13 days of observed history at the previous scan, 14 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-31 (score 72, +1)

No change was recorded against any check on this day. Stability & Change Management went from 37 to 40. That category is still filling its 30-day observation window: 11 days of observed history at the previous scan, 12 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-29 (score 71, +1)

No change was recorded against any check on this day. Stability & Change Management went from 30 to 33. That category is still filling its 30-day observation window: 9 days of observed history at the previous scan, 10 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-27 (score 70, +1)

No change was recorded against any check on this day. Stability & Change Management went from 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-25 (score 69, +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.

### 2026-10-23 (score 68, +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.

### 2026-10-21 (score 67, +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.

## MCP tools (13)

### `validate_personnummer` (~66 tokens)

Validate a Swedish personnummer or samordningsnummer (format, Luhn checksum, birth date, age, gender). Checks format only; does not prove the person exists.

Input parameters:

- `value` (string, required): e.g. 811218-9876 or 198112189876

### `validate_orgnr` (~49 tokens)

Validate a Swedish organisationsnummer (or SE...01 VAT number); returns legal form hint and the derived Swedish VAT number.

Input parameters:

- `value` (string, required): e.g. 556036-0793

### `validate_bankgiro` (~36 tokens)

Validate and format a Swedish bankgiro number.

Input parameters:

- `value` (string, required): e.g. 5402-9681

### `validate_plusgiro` (~35 tokens)

Validate and format a Swedish plusgiro number.

Input parameters:

- `value` (string, required): e.g. 123456-6

### `validate_ocr` (~34 tokens)

Validate a Swedish OCR payment reference (Luhn check digit, optional length digit).

Input parameters:

- `value` (string, required): OCR digits

### `generate_ocr` (~55 tokens)

Generate a Swedish OCR reference (check digit, optional length digit) from a base number such as an invoice number.

Input parameters:

- `base` (string, required): digits
- `length_digit` (string): "true" to add length digit

### `swedish_account_to_iban` (~112 tokens)

Validate a Swedish national bank account (clearing + account number, Bankgirot checksum rules) and convert it to IBAN using the official Bankinfrastruktur clearing table. Returns bank, BIC, account type, IBAN.

Input parameters:

- `account` (string): account number without clearing
- `clearing` (string): clearing number (4 digits; 5 for Swedbank 8xxx)
- `number` (string): full account digits, clearing first (optional if clearing+account given)

### `validate_iban` (~47 tokens)

Validate any IBAN (ISO 13616 mod-97 + country length) and identify the bank for Swedish IBANs.

Input parameters:

- `value` (string, required): IBAN, spaces allowed

### `lookup_clearing_number` (~46 tokens)

Look up bank name, BIC, IBAN id and account type for a Swedish clearing number.

Input parameters:

- `value` (string, required): first 4 digits of the account number

### `swedish_holidays` (~39 tokens)

List Swedish public holidays, eves and observances for a year (computed).

Input parameters:

- `year` (string): 1900-2200

### `swedish_date_info` (~71 tokens)

Weekday (sv/en), ISO week, holiday names and business-day status for a date. mode=bank treats midsommarafton, julafton and nyårsafton as non-business days.

Input parameters:

- `date` (string, required): YYYY-MM-DD
- `mode` (string): bank or work

### `add_business_days` (~62 tokens)

Add (or subtract) business days to a date using Swedish holidays (e.g. payment due dates).

Input parameters:

- `date` (string, required): YYYY-MM-DD
- `days` (string, required): integer, may be negative
- `mode` (string): bank or work

### `count_business_days` (~54 tokens)

Count Swedish business days after "from" up to and including "to".

Input parameters:

- `from` (string, required): YYYY-MM-DD
- `mode` (string): bank or work
- `to` (string, required): YYYY-MM-DD

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/dev-workers-zenith-ops-swekit-api-swekit/swekit-api#diagnostics

## Score history

- 2026-11-05: 74
- 2026-11-04: 73
- 2026-11-03: 73
- 2026-11-02: 73
- 2026-11-01: 72
- 2026-10-31: 72
- 2026-10-30: 71
- 2026-10-29: 71
- 2026-10-28: 70
- 2026-10-27: 70
- 2026-10-26: 69
- 2026-10-25: 69
- 2026-10-24: 68
- 2026-10-23: 68
- 2026-10-22: 67
- 2026-10-21: 67
- 2026-10-20: 66
- 2026-10-19: 66

## Common questions

### What is the SweKit - Swedish validators MCP server?

SweKit - Swedish validators is an MCP server listed in the public MCP registry as dev.workers.zenith-ops.swekit-api/swekit. Swedish personnummer/orgnr/bankgiro/OCR validation, kontonummer to IBAN, bankdagar. This page covers its hosted endpoint (https://swekit-api.zenith-ops.workers.dev/mcp).

### Is the SweKit - Swedish validators MCP server safe to use?

SweKit - Swedish validators scores 74 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 SweKit - Swedish validators MCP server expose?

SweKit - Swedish validators exposes 13 tools: validate_personnummer, validate_orgnr, validate_bankgiro, validate_plusgiro, validate_ocr, and 8 more. Their descriptions and schemas cost roughly 706 tokens of context every time the server is loaded.

### Does the SweKit - Swedish validators MCP server require authentication?

No. We connected to SweKit - Swedish validators without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the SweKit - Swedish validators MCP server still maintained?

SweKit - Swedish validators 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.

### What did VerifyMCP test on the SweKit - Swedish validators MCP server?

VerifyMCP ran 12 checks on SweKit - Swedish validators, covering TLS certificate, Authorization, HSTS header, DNSSEC and 8 more. One item could not be completed, a gap on our side rather than a finding about SweKit - Swedish validators: HTTPS. Supply Chain Security and Provenance & Transparency do not apply to a hosted endpoint, so they were not tested. The score does not measure everything, and the scoring documentation lists what it leaves out.

## Links

- Remote endpoint: https://swekit-api.zenith-ops.workers.dev/mcp
- Website: https://swekit-api.zenith-ops.workers.dev/docs
- Changelog RSS feed: https://verifymcp.io/servers/dev-workers-zenith-ops-swekit-api-swekit/swekit-api.xml
- Changelog JSON feed: https://verifymcp.io/servers/dev-workers-zenith-ops-swekit-api-swekit/swekit-api/changelog.json
- Trust report (JSON): https://verifymcp.io/servers/dev-workers-zenith-ops-swekit-api-swekit/swekit-api.json
- HTML version of this page: https://verifymcp.io/servers/dev-workers-zenith-ops-swekit-api-swekit/swekit-api