Index / MCP servers / FreeToolHub

FreeToolHub MCP server

FreeToolHub is a remote MCP server that gives an AI agent 44 tools, among them advise_tool_portfolio, audit_mcp_server_security, calculate_1099k_tax. It answers at https://freetoolhub.org/api/mcp over streamable HTTP, and it listed its tools to an anonymous client, so no sign-in was needed for that. Our probes reached it 4 of 4 times since 15 September 2026; the last check, on 19 October 2026, succeeded.

Status
Answering
Tools
44
Reliability
4 of 4 checks
Response time
153 ms
Transport
streamable HTTP
Last checked
19 October 2026

44 calculators for AI agents: US tax, finance, business + an MCP engineering & security suite.

Description as the publisher wrote it.

The 44 tools FreeToolHub offers

ToolWhat it does
advise_tool_portfolioToo many MCP tools makes agents pick the wrong one. Given your tool list and usage, get keep / merge / remove recommendations to get under the 10–15 tool guideline.
Inputs: tools, targetToolCount
audit_mcp_server_securityAudit an MCP server against the OWASP MCP Top 10. Reports authentication, path traversal, command injection, secret exposure and supply-chain risk with a concrete remediation list.
Inputs: serverName, hasAuthentication, usesStdioTransport, performsFileOperations, executesCommands, hasHardcodedSecrets
calculate_1099k_taxEstimate tax on 1099-K income (reselling, gig work). SE tax, QBI, quarterly 1040-ES. Uses latest CDN data.
Inputs: grossReceipts, costOfGoodsSold, otherExpenses, filingStatus, state
calculate_break_evenBreak-even point: units to sell to cover fixed costs. Contribution margin, target profit analysis.
Inputs: fixedCosts, pricePerUnit, variableCostPerUnit, targetProfit
calculate_capital_gains_taxUS capital gains tax on stock/crypto. Short vs long-term, NIIT 3.8%, state tax. Uses latest CDN LTCG brackets.
Inputs: purchasePrice, salePrice, holdingPeriodDays, filingStatus, ordinaryIncome, state
calculate_car_loanMonthly car payment, total interest, amortization. Includes sales tax, trade-in, down payment. Uses latest CDN sales tax rates.
Inputs: price, downPayment, tradeIn, interestRate, loanTermMonths, salesTaxRate
calculate_compound_interestCompound interest with monthly contributions. Returns final balance, total interest, inflation-adjusted value. Uses latest CDN inflation rate.
Inputs: principal, monthlyContribution, annualRate, years, inflationRate
calculate_dropship_profitTrue dropshipping profit after product cost, platform fees, payment processing, ad spend. Uses latest CDN payment processor fees.
Inputs: salePrice, productCost, adSpendPerOrder, shippingCost, platform, paymentProcessor
calculate_estate_taxCalculate federal estate tax. 2026 exemption $13.61M, 40% rate. Includes marital deduction.
Inputs: estateValue, spousalInheritance
calculate_freelancer_pricingTurn hourly rate into project quote with overhead, profit margin, milestone splits.
Inputs: hourlyRate, projectHours, overheadPct, profitMarginPct
calculate_freelancer_taxComplete freelancer tax: SE tax, QBI deduction, federal + state income tax. Returns quarterly payment. Uses latest CDN data.
Inputs: grossIncome, businessExpenses, filingStatus, state
calculate_github_actions_costEstimate a GitHub Actions monthly bill using the January 2026 runner rates (Linux $0.006/min, Windows $0.010, macOS $0.062), accounting for plan allowances. Also reports what the same workload cost before the price cut.
Inputs: linuxMinutes, windowsMinutes, macosMinutes, plan, publicRepo
calculate_home_equityCalculate home equity, max borrowable amount (HELOC), and monthly payments. LTV limits included.
Inputs: homeValue, mortgageBalance, interestRate, loanTermYears
calculate_hsa_fsa_savingsCalculate tax savings from HSA and FSA contributions. Federal + FICA + state tax savings. Latest CDN limits.
Inputs: hsaContribution, fsaContribution, filingStatus, state, marginalRate
calculate_life_insuranceCalculate life insurance needs using DIME method: Debt, Income, Mortgage, Education.
Inputs: annualIncome, yearsToReplace, debt, mortgage, collegeFund, children
calculate_mortgageMonthly mortgage payment (P&I) + property tax, insurance, PMI. Full PITI breakdown. Uses latest CDN mortgage rates for defaults.
Inputs: homePrice, downPayment, interestRate, loanTermYears, propertyTaxRate, insuranceRate
calculate_payroll_taxCalculate paycheck deductions: federal tax, Social Security, Medicare, state tax. All 50 states. Latest CDN data.
Inputs: grossSalary, filingStatus, state, retirementContribution
calculate_quarterly_taxCalculate quarterly estimated tax payments (Form 1040-ES). SE tax + income tax divided by 4. Latest CDN data.
Inputs: annualIncome, businessExpenses, filingStatus, state
calculate_rental_affordabilityHow much rent can you afford? 30% rule, DTI ratio, comfortable rent range.
Inputs: monthlyIncome, monthlyDebts
calculate_rental_roiRental property ROI: cap rate, cash-on-cash return, NOI, annual cash flow. Includes vacancy and management.
Inputs: propertyValue, monthlyRent, downPayment, interestRate, vacancyRate, managementRate
calculate_reseller_profitCompare real profit across reselling platforms (eBay, Poshmark, Mercari, etc.) after fees. Uses latest CDN platform fee data.
Inputs: purchasePrice, salePrice, shippingCost, state
calculate_roiROI, ROAS, net profit, CPA, CPC for marketing campaigns. Facebook, Google, TikTok ad analysis.
Inputs: revenue, cost, adSpend, clicks, conversions
calculate_se_taxCalculate US self-employment tax (15.3%), QBI deduction, quarterly payments. Uses latest IRS brackets from CDN data.
Inputs: netEarnings, filingStatus, state
calculate_student_loanStudent loan payoff: monthly payment, total interest, months saved with extra payments.
Inputs: loanAmount, interestRate, loanTermYears, extraPayment
calculate_tariffEstimate import duties and landed cost by HS code category. Covers US MFN + Section 301 tariffs.
Inputs: productValue, freight, tariffRate, category
check_economic_nexusCheck which US states you have economic nexus in for sales tax collection. Based on Wayfair ruling. Latest CDN thresholds.
Inputs: totalSales, statesWithSales
compare_401k_vs_rothCompare 401(k) pre-tax vs Roth IRA post-tax. 30-year growth, tax drag, recommendation. Uses latest CDN contribution limits.
Inputs: annualContribution, currentTaxRate, retirementTaxRate, annualReturn, years, employerMatch
compare_ai_coding_tool_costsCompare monthly and annual cost of AI coding subscriptions (GitHub Copilot, Cursor, Claude Code/Pro/Max, OpenAI Codex) for a given team size and usage intensity, then compare the winner against pay-as-you-go API pricing for the same workloa
Inputs: seats, usageLevel, includeApiBaseline, apiModel
compare_automation_platform_costsCompare real monthly cost on Zapier (per task) versus Make (per operation) for the same workflow volume, including the counting-model difference that makes the two quotes non-obvious.
Inputs: runsPerMonth, stepsPerRun, workflowCount
compare_llc_costCompare LLC formation and maintenance costs across US states. 5-year total cost. Uses latest CDN LLC state fees data.
Inputs: state, years
compare_llm_api_costsRank 18 LLM models by the real monthly cost of a given workload (input/output tokens per call × calls per month). Reports the cheapest and most expensive option, the cost spread, and which models can actually hold your prompt in their conte
Inputs: inputTokensPerCall, outputTokensPerCall, callsPerMonth, topN, provider, minContextWindow
compare_w2_vs_1099Compare take-home pay: W-2 salary vs 1099 contractor rate. SE tax, FICA, standard deduction, state tax. Latest CDN data.
Inputs: w2Salary, contractorRate, filingStatus, state
compress_tool_definitionsShrink MCP tool descriptions and JSON schemas to cut context cost without changing how agents call them. Returns the compressed definitions plus exact token savings.
Inputs: definitions
detect_polling_cost_trapsFind the most common hidden cost in no-code automation: using polling where a webhook would do. Quantifies the wasted task/operation quota and the monthly dollars.
Inputs: workflows, platform
estimate_mcp_context_budgetEstimate how much of an LLM context window your MCP servers consume, and which tool definitions to cut first. Paste your MCP config. Returns per-server token cost, remaining budget, and ranked reduction advice.
Inputs: config, contextWindow, reservedForConversation
estimate_selfhosted_tcoCompare paying hosted CI overage against running self-hosted runners, including the maintenance hours people forget to cost. Reports the true break-even volume.
Inputs: monthlyMinutes, runnerType, maintenanceHoursPerMonth, engineerHourlyCost, runnerHostingCostPerMonth
find_toolSemantic tool router. Given a natural-language intent, return only the most relevant tools from this server so the client can inject 3 schemas instead of 27. This is the "find_tool" meta-tool the MCP optimisation literature calls for.
Inputs: query, limit
generate_mcp_client_configGenerate ready-to-paste MCP server config for Claude Desktop, Cursor, VS Code and Windsurf from one input. Config completeness decides whether developers can install your server at all.
Inputs: serverName, command, args, url, env
generate_mcp_server_cardGenerate a SEP-1649 MCP Server Card (/.well-known/mcp/server-card.json) so crawlers and registries can discover your server without connecting to it.
Inputs: name, description, version, endpointUrl, transport, tools
get_sales_tax_rateGet state sales tax rate for any US state. Returns base state rate + estimated local rate. Latest CDN data.
Inputs: state, amount
4 more tools

plan_context_window_budget, plan_mcp_token_budget, score_mcp_server_trust, validate_mcp_server_card

Add FreeToolHub to your AI client

Every block below points at https://freetoolhub.org/api/mcp. Pick your client and copy.

Claude Code: one command in your terminal
claude mcp add --transport http freetoolhub https://freetoolhub.org/api/mcp
Claude Desktop: claude_desktop_config.json
{
  "mcpServers": {
    "freetoolhub": {
      "command": "npx",
      "args": ["-y", "mcp-remote", "https://freetoolhub.org/api/mcp"]
    }
  }
}
Cursor: ~/.cursor/mcp.json, or .cursor/mcp.json in a project
{
  "mcpServers": {
    "freetoolhub": {
      "url": "https://freetoolhub.org/api/mcp"
    }
  }
}
VS Code and GitHub Copilot: .vscode/mcp.json
{
  "servers": {
    "freetoolhub": {
      "type": "http",
      "url": "https://freetoolhub.org/api/mcp"
    }
  }
}
Zed: Zed settings.json
{
  "context_servers": {
    "freetoolhub": {
      "url": "https://freetoolhub.org/api/mcp"
    }
  }
}
Windsurf: ~/.codeium/mcp_config.json
{
  "mcpServers": {
    "freetoolhub": {
      "serverUrl": "https://freetoolhub.org/api/mcp"
    }
  }
}
JetBrains AI Assistant: Settings, Tools, AI Assistant, MCP, New MCP Server, as JSON
{
  "mcpServers": {
    "freetoolhub": {
      "url": "https://freetoolhub.org/api/mcp"
    }
  }
}
Continue: .continue/mcpServers/neuronto.yaml
name: FreeToolHub
version: 0.0.1
schema: v1
mcpServers:
  - name: FreeToolHub
    type: streamable-http
    url: https://freetoolhub.org/api/mcp
Gemini CLI: ~/.gemini/settings.json
{
  "mcpServers": {
    "freetoolhub": {
      "httpUrl": "https://freetoolhub.org/api/mcp"
    }
  }
}
Codex CLI: MCP server config
{
  "mcpServers": {
    "freetoolhub": {
      "type": "http",
      "url": "https://freetoolhub.org/api/mcp"
    }
  }
}
Warp: MCP servers, + Add, paste JSON
{
  "mcpServers": {
    "freetoolhub": {
      "url": "https://freetoolhub.org/api/mcp"
    }
  }
}
Goose: a one-click extension link
goose://extension?url=https%3A%2F%2Ffreetoolhub.org%2Fapi%2Fmcp&type=streamable_http&id=freetoolhub&name=FreeToolHub

Is FreeToolHub up right now?

It answered our last check on 19 October 2026 in 153 ms. Over 4 checks since 15 September 2026 it answered 4. Status here comes from Neuronto's own probes, not from the publisher.

MCP servers similar to FreeToolHub

Questions about FreeToolHub

How many tools does FreeToolHub have?

44, as returned by the server's own tools/list on 24 September 2026: advise_tool_portfolio, audit_mcp_server_security, calculate_1099k_tax, calculate_break_even, calculate_capital_gains_tax, calculate_car_loan, calculate_compound_interest, calculate_dropship_profit, and 36 more.

Is FreeToolHub down?

It answered our last check on 19 October 2026 in 153 ms. Over 4 checks since 15 September 2026 it answered 4.

How do I add FreeToolHub to Cursor?

Put the server under mcpServers in ~/.cursor/mcp.json with the URL https://freetoolhub.org/api/mcp. The exact JSON is above, with the same setup for Claude Code, Claude Desktop, VS Code, Windsurf, Zed, Gemini CLI and the rest.

Does FreeToolHub need an API key?

It listed its tools to an anonymous client, so reading the tool list needs no key. Individual tools can still ask for credentials in their own inputs.

Where this comes from

Publisher: io.github.cavan1977. Endpoint host: freetoolhub.org. ARD identifier: urn:air:io.github.cavan1977:mcp:freetoolhub. First indexed 15 September 2026. The tools are exactly what the server returned; nothing on this page is inferred from its name. Ranking in Neuronto search is never for sale.

Is this your server? Get a message the day it stops answering or its tools change: monitoring, 14 days free. Or claim the domain to manage how it is listed.