vat-whitelist-mcp
Server Configuration
Describes the environment variables required to run the server.
| Name | Required | Description | Default |
|---|---|---|---|
| VAT_ENV | No | Set to `test` for the sandbox or `prod` for live data. | test |
| VAT_TIMEOUT | No | Positive finite HTTP timeout in seconds. | 30 |
Instructions
Guidance the server publishes about itself, which clients place ahead of the tool catalog so the model reads it before choosing anything.
This server publishes no instructions, or was last inspected before Glama recorded them.
Capabilities
Features and capabilities supported by this server
Protocol revision2025-11-25
| Capability | Details |
|---|---|
| tools | {
"listChanged": false
} |
| prompts | {
"listChanged": false
} |
| resources | {
"subscribe": false,
"listChanged": false
} |
| experimental | {} |
Tools
Functions exposed to the LLM to take actions
| Name | Description |
|---|---|
| search_by_nipC | Look up taxpayer details by NIP on an explicit YYYY-MM-DD date. |
| search_by_regonC | Look up taxpayer details by 9- or 14-digit REGON on YYYY-MM-DD. |
| search_by_bank_accountB | Find taxpayers for a Polish bank account on YYYY-MM-DD; accepts NRB or PL IBAN. |
| search_bulkA | Look up 1–30 identifiers in one request on YYYY-MM-DD. |
| check_bank_accountB | Check account association with an active taxpayer on YYYY-MM-DD. |
Prompts
Interactive templates invoked by user choice
| Name | Description |
|---|---|
No prompts | |
Resources
Contextual data attached and managed by the client
| Name | Description |
|---|---|
No resources | |
TDQS
Scored across 5 tools
The single-identifier lookup tools are clearly separated by NIP, REGON, and bank account, and search_bulk is explicitly bulk. check_bank_account and search_by_bank_account both concern bank-account relationships and could be momentarily confused, but their descriptions distinguish search from association checking.
All tool names use snake_case and clear action/resource wording. There is a minor deviation between search_by_* tools, search_bulk, and check_bank_account, but the pattern remains readable and predictable.
Five tools is well scoped for a focused VAT whitelist lookup server. Each tool covers a distinct lookup mode and none feels redundant or excessive.
The tool set covers core lookup workflows: NIP, REGON, bank account, bulk lookup, and bank-account association checking. Minor gaps exist, such as no dedicated explicit VAT-status check by NIP/REGON beyond search results, but the main domain surface is covered.