# AuraCalcs (remote · mcp.auracalcs.com)

Read-only 2026 paycheck estimates for CA, NY, IL, TX, FL, plus hourly-to-salary. Not tax advice.

- Trust score: 67/100 (medium)
- Change this week: +3
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-04

## Components

- remote · `mcp.auracalcs.com`: 67/100 (this document), [markdown](https://verifymcp.io/servers/com-auracalcs-calculators/mcp.md), [page](https://verifymcp.io/servers/com-auracalcs-calculators/mcp)

## Channel facts

- Endpoint: `https://mcp.auracalcs.com/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 2026-11-04.

- **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. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one.
  - 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**: 60/100
  - AI-judged instruction clarity (good).
  - Context-footprint check failed: tool/resource definitions use about 1510 tokens (~302/item across 5 items; 5 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 23/100
  - Stability observed for 7 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 5 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 5 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a current MCP spec version (2026-07-28).

## Install

### How do I install the AuraCalcs MCP server?

AuraCalcs is a hosted endpoint at https://mcp.auracalcs.com/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 com-auracalcs-calculators 'https://mcp.auracalcs.com/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "com-auracalcs-calculators": {
      "url": "https://mcp.auracalcs.com/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "com-auracalcs-calculators": {
      "type": "http",
      "url": "https://mcp.auracalcs.com/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.com-auracalcs-calculators]
url = "https://mcp.auracalcs.com/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "com-auracalcs-calculators": {
      "type": "remote",
      "url": "https://mcp.auracalcs.com/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add com-auracalcs-calculators --url 'https://mcp.auracalcs.com/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  com-auracalcs-calculators:
    url: "https://mcp.auracalcs.com/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "com-auracalcs-calculators": {
      "Transport": "http",
      "Url": "https://mcp.auracalcs.com/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add com-auracalcs-calculators -t streamable-http -u 'https://mcp.auracalcs.com/mcp'
```

### Other

```json
{
  "mcpServers": {
    "com-auracalcs-calculators": {
      "type": "http",
      "url": "https://mcp.auracalcs.com/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.

### 2026-11-03 (score 67, +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.

### 2026-11-02 (score 66, +1)

- [security] Tool “calculate_paycheck” rewrote its description, which is the text the model reads
- [functional improvement] Schema quality: 336 → 302
- [functional] Server version: 0.1.0 → 1.1.0
- [functional] New tool “calculate_1099_tax”
- [functional] New tool “calculate_quarterly_estimated_tax”
- [functional] New tool “compare_1099_vs_w2”
- [cosmetic] “calculate_paycheck” reworded the description of “stateAllowances”

### 2026-10-30 (score 65, +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.

### 2026-10-29 (score 64, 0)

- [functional improvement] Stability: unverified → 0.03

### 2026-10-28 (score 64)

First indexed and scored.

## MCP tools (5)

### `calculate_paycheck` (~487 tokens)

Estimate a 2026 paycheck

Estimate 2026 take-home pay for one paycheck in California, New York, Illinois, Texas, Florida, Nevada, Tennessee, Wyoming, South Dakota, Alaska, New Hampshire, or Washington. Federal income tax, Social Security, Medicare, and that state's withholding use the same figures as auracalcs.com. Returns the paycheck lines, a link to the matching page, the publications and the date they were checked, and a disclaimer. Estimate only.

Input parameters:

- `amount` (number, required): Pay amount in dollars, before tax. Annual salary, one gross paycheck, or an hourly wage.
- `fedStep2Checkbox` (boolean): Form W-4 Step 2 checkbox.
- `fedStep3Credits` (number): Form W-4 Step 3 credits for the year.
- `fedStep4a` (number): Form W-4 Step 4(a) other income for the year.
- `fedStep4b` (number): Form W-4 Step 4(b) deductions for the year.
- `fedStep4cExtra` (number): Form W-4 Step 4(c) extra withholding on this paycheck.
- `filingStatus` (string, required): Form W-4 Step 1(c). New York estimates single and married filing jointly only.
- `hoursPerWeek` (number): Used when payBasis is hourly. Defaults to 40.
- `ilLine2Allowances` (number): Illinois IL-W-4 line 2 allowances.
- `nyLocality` (string): New York local tax. Ignored for other states.
- `nySdiDeducted` (boolean): Whether the New York employer deducts SDI. Paid Family Leave is still estimated.
- `payBasis` (string, required): How amount is entered.
- `payFrequency` (string, required): How often this paycheck is paid.
- `state` (string, required): Work state. The page for that state is linked in the result.
- `stateAllowances` (number): California DE 4 allowances, New York IT-2104 exemptions (0 to 10), or Illinois IL-W-4 line 1. States without an income tax ignore this.
- `weeksPerYear` (number): Used when payBasis is hourly. Defaults to 52.
- `ytdGross` (number): Gross pay already received this year. Used only for Social Security and Additional Medicare on this paycheck.

### `convert_hourly_to_salary` (~203 tokens)

Convert hourly pay to gross salary

Convert an hourly wage into gross annual, monthly, semimonthly, biweekly, weekly, and daily pay, including overtime. Uses the same formula as the AuraCalcs hourly to salary page. This is gross pay before tax. Estimate only.

Input parameters:

- `hourly` (number): Hourly wage in dollars. Same field as the website.
- `hourlyRate` (number): Alias for hourly.
- `hours` (number): Hours per week. Defaults to 40.
- `hoursPerWeek` (number): Alias for hours.
- `ot` (number): Overtime hours per week. Defaults to 0.
- `otx` (number): Overtime multiplier. Defaults to 1.5.
- `unpaidWeeks` (number): If paid weeks are omitted, paid weeks are 52 minus this number.
- `weeks` (number): Paid weeks per year. Defaults to 52.
- `weeksPerYear` (number): Alias for weeks.

### `calculate_1099_tax` (~314 tokens)

Estimate 2026 1099 and self-employment tax

Estimate 2026 tax on 1099 / self-employment income: self-employment tax (Social Security and Medicare, with its full breakdown), federal income tax, optional flat state tax, the percent of each payment to set aside, and the quarterly payment. Same math as the auracalcs.com 1099 tax and self-employment tax calculators. Returns a link to the page, sources, the date checked, and a disclaimer. Estimate only.

Input parameters:

- `applyQbiDeduction` (boolean): Apply the 20% qualified business income deduction. Defaults to true, like the website.
- `businessExpenses` (number): Deductible business expenses for the year. Defaults to 0.
- `filingStatus` (string): single or married (filing jointly). Defaults to single.
- `grossIncome` (number, required): Total 1099 / self-employment income for 2026, before expenses.
- `healthInsurancePremiums` (number): Self-employed health insurance premiums. Defaults to 0.
- `retirementContributions` (number): SEP IRA or solo 401(k) contributions. Defaults to 0.
- `stateTaxRate` (number): Flat state income tax rate in percent, applied to AGI. Use 0 for no-income-tax states. Defaults to 0, so state tax is left out unless given.
- `w2Wages` (number): Other W-2 wages this year. They use up the Social Security wage base first. Defaults to 0.

### `calculate_quarterly_estimated_tax` (~245 tokens)

Plan 2026 quarterly estimated tax

Work out 2026 federal quarterly estimated tax payments with the IRS safe harbor rules (90% of this year's tax or 100%/110% of last year's), minus withholding, with the four due dates. Same math as the auracalcs.com quarterly estimated tax calculator. Estimate only.

Input parameters:

- `expectedTax2026` (number, required): Expected total 2026 tax: federal income tax plus self-employment tax. calculate_1099_tax can estimate it.
- `paymentsMade` (number): Estimated payments already made for 2026. Defaults to 0.
- `priorYearAgiOver150k` (boolean): Was 2025 AGI over $150,000 ($75,000 if married filing separately)? Then the prior-year safe harbor is 110%. Defaults to false.
- `priorYearTax2025` (number, required): Total tax on the 2025 return (Form 1040 line 24). Use 0 only if 2025 had no tax liability and was a full 12-month year.
- `withholding` (number): Federal tax withheld from W-2 jobs in 2026. Defaults to 0.

### `compare_1099_vs_w2` (~261 tokens)

Compare a 1099 contract with a W-2 salary

Compare a 1099 hourly contract with a W-2 salary offer, counting the extra self-employment tax, 401(k) match, health insurance and business expenses. Returns which pays more, by how much, and the break-even 1099 hourly rate. Same math as the auracalcs.com 1099 vs W-2 calculator. Estimate only.

Input parameters:

- `billableHoursPerWeek` (number): Billable hours per week on the contract. Defaults to 40.
- `businessExpenses` (number): Business expenses as a contractor per year. Defaults to 0.
- `employer401kMatchPercent` (number): Employer 401(k) match as a percent of salary. Defaults to 0.
- `employerHealthInsurance` (number): Employer-paid health insurance per year. Defaults to 0.
- `hourlyRate1099` (number, required): 1099 hourly contract rate offered.
- `paidDaysOff` (number): Paid vacation and holiday days in the W-2 job. Defaults to 0.
- `w2Salary` (number, required): W-2 annual salary offered.
- `weeksWorkedPerYear` (number): Weeks worked per year on the contract. Defaults to 48, like the website.

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/com-auracalcs-calculators/mcp#diagnostics

## Score history

- 2026-11-04: 67
- 2026-11-03: 67
- 2026-11-02: 66
- 2026-11-01: 65
- 2026-10-31: 65
- 2026-10-30: 65
- 2026-10-29: 64
- 2026-10-28: 64

## Common questions

### What is the AuraCalcs MCP server?

AuraCalcs is an MCP server listed in the public MCP registry as com.auracalcs/calculators. Read-only 2026 paycheck estimates for CA, NY, IL, TX, FL, plus hourly-to-salary. Not tax advice. This page covers its hosted endpoint (https://mcp.auracalcs.com/mcp).

### Is the AuraCalcs MCP server safe to use?

AuraCalcs scores 67 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 AuraCalcs MCP server expose?

AuraCalcs exposes 5 tools: calculate_paycheck, convert_hourly_to_salary, calculate_1099_tax, calculate_quarterly_estimated_tax, compare_1099_vs_w2. Their descriptions and schemas cost roughly 1,510 tokens of context every time the server is loaded.

### Does the AuraCalcs MCP server require authentication?

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

### Is the AuraCalcs MCP server still maintained?

AuraCalcs is still listed as active in the MCP registry. We last reached this channel on 4 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

## Links

- Remote endpoint: https://mcp.auracalcs.com/mcp
- Website: https://auracalcs.com/
- Changelog RSS feed: https://verifymcp.io/servers/com-auracalcs-calculators/mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/com-auracalcs-calculators/mcp.json
- HTML version of this page: https://verifymcp.io/servers/com-auracalcs-calculators/mcp