Irs Taxpayer vs Vatnode MCP
A side-by-side look at the Irs Taxpayer and Vatnode MCP MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose Irs Taxpayer for finance & fintech work as a local process; choose Vatnode MCP for finance & fintech as a local process. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
Choose Irs Taxpayer when
- You need dedicated capabilities in the Finance & Fintech domain.
- You prefer a local stdio subprocess transport.
- You want tools like
calculate_federal_tax, get_tax_brackets, compare_filing_statuses.
Choose Vatnode MCP when
- You need dedicated capabilities in the Finance & Fintech domain.
- You prefer a local stdio subprocess transport.
- Its auth model fits you: API key required.
- You have the keys it needs:
VATNODE_API_KEY, VATNODE_API_URL. - You want tools like
list_eu_vat_rates, get_country_vat_rates, check_vat_format.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Finance & Fintech | Finance & Fintech |
| Quality signal | 63/100 · Good | 64/100 · Good |
| Install command | Confirmed | Confirmed |
| Transport | Local subprocess (stdio) | Local subprocess (stdio) |
| Auth | Not declared | API key required |
| Pricing | Not declared | Freemium |
| Required env vars | None listed | VATNODE_API_KEYVATNODE_API_URL |
| Verified owner | Community listing | Community listing |
| GitHub stars | 13 | 2 |
| Directory activity | 1 views 0 installs 0 upvotes | 1 views 0 installs 0 upvotes |
| Tools | 44 | 5 |
| Full listing | View Irs Taxpayer | View Vatnode MCP |
Tools & capabilities
Irs Taxpayer tools 44
calculate_federal_taxCalculate federal income tax for an individual taxpayer. Supports TY2024 through TY2026. Includes bracket breakdown, effective/marginal rates, SE tax, NIIT, Additional Medicare Tax, QBI deduction, capital gains, and child tax credit. All calculations run locally — no data is sent to any server.get_tax_bracketsGet federal income tax brackets and standard deduction for a given tax year and filing status.compare_filing_statusesCompare tax liability across different filing statuses for the same income. Helps determine the most advantageous filing status.estimate_quarterly_taxCalculate estimated quarterly tax payments (Form 1040-ES) for self-employed or other taxpayers who need to make estimated payments.calculate_total_taxCalculate combined federal + state tax for a complete picture of total tax liability. Returns federal breakdown, state tax, and combined totals in one call.calculate_w4_withholdingCalculate recommended W-4 withholding settings. Estimates per-paycheck federal tax and provides step-by-step W-4 form recommendations.list_deductionsList available tax deductions with eligibility rules and limits. Covers both above-the-line and itemized deductions.standard_vs_itemizedCompare standard deduction vs itemized deductions to determine which is more beneficial.get_tax_deadlinesGet important IRS tax deadlines and due dates for a given tax year.check_refund_statusProvide instructions on how to check IRS refund status. This tool does NOT access your IRS account — it provides the official links and requirements.get_irs_form_infoGet information about common IRS tax forms — what they are, who needs them, and where to find them.list_tax_creditsList available federal tax credits with eligibility, amounts, and phase-out rules. Covers family, education, energy, retirement, healthcare, and income-based credits.- +32 more on the listing page
Vatnode MCP tools 5
list_eu_vat_ratesReturns current VAT rates for all EU member states (plus XI for Northern Ireland). Read-only and offline: no network call, no API key, no rate limit, no side effects. Takes no arguments. Output: { rates: Array<{ countryCode, countryName, vatName, vatAbbr, currency, standardRate, reducedRates[], superReducedRate, parkingRate, vatNumberFormat, vatNumberPattern, updatedAt }>, count, updatedAt }. Rates are percentages (e.g. 25.5). Use when the user asks for an overview, a comparison across countries, or "all EU VAT rates". For a single country prefer get_country_vat_rates. Data is sourced from the EU Commission TEDB and updated daily. Free, no API key required.get_country_vat_ratesReturns the standard, reduced, super-reduced and parking VAT rates for a single European country, plus the VAT number format and regex. Read-only and offline: no network call, no API key, no rate limit, no side effects. Accepts ISO 3166-1 alpha-2 codes (DE, FR, IT, …); also covers non-EU European jurisdictions where available (NO, CH, GB, UA, TR, …). Output: { countryCode, countryName, vatName, vatAbbr, currency, standardRate, reducedRates[], superReducedRate, parkingRate, vatNumberFormat, vatNumberPattern, updatedAt }; rates are percentages and may be null where not applicable. Returns an error if the country code is unknown. Use when the user asks "what is the VAT rate in X" or needs the VAT number format for a country. Free, no API key required.check_vat_formatPerforms an offline syntactic check of a VAT number against the country-specific regex pattern. Read-only and offline: no network call, no API key, no rate limit, no side effects. Does NOT verify the VAT with VIES (a valid format does not mean the VAT is real or active) — use validate_vat_number for that. Output: { input, normalized, countryCode, validFormat (boolean), error }; countryCode is null when the prefix is unknown. Use when the user wants a quick sanity check on the shape of a VAT ID without burning a quota call. Free, no API key required.list_supported_countriesReturns every country the vatnode server has VAT data for (EU-27 + XI for Northern Ireland + ~17 other European jurisdictions such as NO, CH, GB, UA, TR). Read-only and offline: no network call, no API key, no rate limit, no side effects. Takes no arguments. Output: { countries: Array<{ countryCode, countryName, isEUMember, viesValidationSupported }>, count, euCount, updatedAt }, sorted by countryCode. `viesValidationSupported: true` means validate_vat_number can do live VIES verification; non-EU jurisdictions are rate-lookup only. Use to discover coverage or to pick a valid countryCode before calling get_country_vat_rates or validate_vat_number.validate_vat_numberVerifies an EU VAT number against the official VIES service and returns validity, company name, address, registration date and other metadata. The audit-grade VIES consultation number (`consultationNumber`) is produced when a requester VAT is configured once in the vatnode dashboard Settings — a one-time account setup, not a per-call parameter. With a requester configured, every response is either a success with a non-null `consultationNumber` or an error; without one, `consultationNumber` is null and national-registry fallback stays enabled. Use whenever the user wants to confirm a VAT is real, look up the company behind a VAT, or needs evidence for accounting/compliance. Side effects: makes an authenticated network call to api.vatnode.dev (which queries the EU VIES service) and consumes one request from your monthly quota; it is read-only (verifies, never mutates) and safe to retry. Requires a vatnode API key (free tier available; set VATNODE_API_KEY). Only EU-27 + XI (Northern Ireland) are supported by VIES; other countries return an error.
Ready-to-paste client configs
Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.
Irs Taxpayer
{
"mcpServers": {
"irs-taxpayer": {
"command": "npx",
"args": [
"-y",
"irs-taxpayer-mcp"
]
}
}
}
Vatnode MCP
{
"mcpServers": {
"vatnode-vatnode-mcp": {
"command": "npx",
"args": [
"-y",
"vatnode-mcp"
],
"env": {
"VATNODE_API_KEY": "YOUR_VATNODE_API_KEY_HERE",
"VATNODE_API_URL": "YOUR_VATNODE_API_URL_HERE"
}
}
}
}
Frequently asked questions
Irs Taxpayer is categorized under Finance & Fintech and uses a local stdio subprocess. Vatnode MCP belongs to Finance & Fintech and uses a local stdio subprocess. Pick Irs Taxpayer for finance & fintech work and Vatnode MCP for finance & fintech.
Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client.
Irs Taxpayer has no declared pricing — check the project's own site. Vatnode MCP is listed as freemium — a free tier with paid plans. Auth: api key required. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.
Yes. MCP clients support multiple servers: add irs-taxpayer and vatnode-vatnode-mcp as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, Irs Taxpayer has a quality signal of 63/100 (Good) with 1 views, 0 installs and 13 GitHub stars. Vatnode MCP has 64/100 (Good) with 1 views, 0 installs and 2 GitHub stars.