58 MCP servers for invoicing, documents and back-office work
Every back-office server on this page is MIT licensed, runs against local files, and speaks the Model Context Protocol, so Claude Desktop, Claude Code, Cursor, Windsurf and your own agent can all use the same tool. Nothing here needs an account to try.
Looking for live data instead, such as a gold or silver price per gram, a river level or the 2026 IRS mileage rate? See the 33 free live-data MCP servers with no key.
The map: pick the row for your task, open the server page for the exact tool names and install steps. Prices are one-time; there is no subscription anywhere in this collection.
Invoicing and billing
| Server | Tools | What it does | Price |
|---|---|---|---|
| Invoice | 11 | Make real, sendable PDF invoices from a sentence. Clients, numbering that never repeats, VAT lines, discounts and overdu | Pro $19 |
| Quotes | 10 | Send a client a real quote in seconds: line items with VAT, a validity date, a plain-text version to paste into email an | Pro $19 |
| Recurring | 12 | Bill the same clients every month without remembering to. Define a recurring invoice once, then generate the real PDFs t | Pro $19 |
| Credit Note | 8 | Credit notes against an invoice or standalone: drafts, finalization, rendering, totals. | Pro $19 |
| Dunning Letters | 9 | Chase overdue invoices: reminder 1, reminder 2, final notice, escalation dates, aging. | Pro $19 |
| Statement Of Account | 6 | Per-client statements of account, aging buckets and dunning letters from your own books. | Pro $19 |
| Duplicate Invoice Check | 6 | Review explainable duplicate supplier invoice candidates in a supplied local batch. | Pro $19 |
| Bill Of Sale | 8 | Bills of sale for equipment, vehicles and stock: draft, finalize, print with signature lines. | Pro $19 |
| Change Order | 9 | Change orders against a quote or work order: deltas, approval, running contract value. | Pro $19 |
| Deposits | 9 | Security and retainer deposits per client: hold them, apply them to invoices, refund them. | Pro $19 |
| Stripe Billing | 0 | MCP server: stripe-billing | Pro $19 |
| Billing Docs | 14 | Credit notes against your invoices and purchase orders to your suppliers, on the invoice engine. | Pro $19 |
| Office Suite | 3 | One install for the whole freelancer office suite: time tracking, price watching, spreadsheets and PDF invoicing, proxie | Pro $19 |
Documents and files
| Server | Tools | What it does | Price |
|---|---|---|---|
| 10 | Merge, split, extract, rotate, reorder and stamp PDF files from chat: mark an invoice PAID, pull pages out of a scan, jo | Pro $19 | |
| Docx | 9 | Turn a chat into a real Word document: proposals, quotes, contracts, statements of work and letters as .docx files, plus | Pro $19 |
| Spreadsheet | 8 | Open, inspect, query, edit and convert xlsx and csv files locally from your AI assistant | Pro $19 |
| Image | 10 | Resize, convert, compress, crop, thumbnail and watermark images from chat: no upload, no account, no native dependency. | Pro $19 |
| Zip | 7 | Create, inspect and extract zip archives from chat: glob a directory into a zip, list what is inside with a bomb and tra | Pro $19 |
| Barcode | 8 | QR codes and barcodes from chat: URLs, WiFi joins, vCards, SEPA payment QR that a banking app can scan, Code 128 and EAN | Pro $19 |
| Catalogue | 10 | A price list and rate card the quotes and invoice servers read by SKU. | Pro $19 |
| Packing List | 12 | Packing slips: cartons, contents, weights, chargeable weight and what is still to pack. | Pro $19 |
| Resume | 8 | Turn your CV facts into a tailored Word resume and a cover letter that invents nothing: keyword matching against the pos | Pro $19 |
| Clauses | 10 | A personal library of reusable contract and proposal clauses: 25 generic freelance starters with {variables}, ranked sea | Pro $19 |
| Service Agreement | 7 | Service agreements for freelancers: scope, deliverables, rate, termination and liability caps. | Pro $19 |
| Checklist | 14 | Reusable checklists and the dated runs of them: pass, fail, not applicable, and a sign-off. | Pro $19 |
Money and accounting
| Server | Tools | What it does | Price |
|---|---|---|---|
| Amortization | 7 | Loan and lease schedules: payment, interest, early settlement and the journal, to the minor unit. | Pro $19 |
| Asset Register | 7 | Fixed assets and depreciation on bundled Polish KST, HMRC and IRS MACRS tables. | Pro $19 |
| Bank Statement | 10 | Import a bank CSV export, categorise it, summarise it per currency, find recurring charges and reconcile it against your | Pro $19 |
| Budget | 0 | MCP server: budget | Pro $19 |
| Cash Book | 7 | One double-entry ledger derived from your invoices, bank, expenses, deposits and assets. | Pro $19 |
| Currency | 8 | Live and historical exchange rates from the European Central Bank, in your AI chat. Convert amounts, read rate history, | Pro $19 |
| Expense Tracker | 12 | Local expenses, receipts and mileage ledger for freelancers: categorise, split VAT, summarise, export to CSV or xlsx and | Pro $19 |
| Goods Receipt | 9 | Goods receipt notes against purchase orders: over/under tolerances, damaged and short units, discrepancies, and CSV expo | Pro $19 |
| Loan Calculator | 0 | MCP server: loan-calculator | Pro $19 |
| Payroll | 0 | MCP server: payroll | Pro $19 |
| Petty Cash | 7 | A petty cash float on the imprest system: vouchers, reconciliation and the replenishment. | Pro $19 |
| Receipts | 0 | MCP server: receipts | Pro $19 |
| Tax Calc | 0 | MCP server: tax-calc | Pro $19 |
| Three Way Match | 6 | Match supplier invoice lines to purchase orders and accepted receipts by SKU with local evidence. | Pro $19 |
| Supplier Statement Check | 6 | Compare supplied supplier statement and AP ledger open items by exact reference with complete discrepancy evidence. | Pro $19 |
| Purchase Requisition | 8 | Reusable purchase-requisitions and dated runs: pass, fail, n/a, and a sign-off. | Pro $19 |
| Mileage Log | 7 | Mileage log for deductible driving: trips, effective-dated rates, summaries and CSV export. | Pro $19 |
| Per Diem | 7 | Daily travel allowances on bundled public rate tables: Poland, HMRC and GSA. | Pro $19 |
| Hourly Rate | 0 | Freelance hourly-rate calculator with break-even and what-if scenarios. | Pro $19 |
Time and operations
| Server | Tools | What it does | Price |
|---|---|---|---|
| Time Tracker | 18 | Track billable time without leaving your AI chat. Timers, entries, reports, CSV export and invoice line items, all store | Pro $19 |
| Kanban | 15 | A local task board per project: columns, due dates, estimates, priorities and a link into your time tracker. All data st | Pro $19 |
| Job Card | 9 | Job cards for trades and field service: hours and materials per job, open to invoiced. | Pro $19 |
| Work Order | 10 | Job orders for trades and field work: parts, labour, status, completion report, invoice payload. | Pro $19 |
| Leave | 10 | Employee leave and PTO requests: balances, approvals, calendars, and who-is-out summaries. | Pro $19 |
| Pomodoro | 0 | MCP server: pomodoro | Pro $19 |
| Maintenance Log | 6 | Equipment maintenance log: assets, service entries with costs, and a due report from stored dates. | Pro $19 |
| Calendar | 10 | Read the .ics your calendar already exports: what is on this week, when you are actually free, what is double-booked, an | Pro $19 |
| Timezone | 9 | Time zones, meeting slots and calendar invites for people who work with clients abroad. Convert times, find hours that s | Pro $19 |
| Delivery Schedule | 10 | Dated deliverables against a quote or work order: due dates, sign-off, what is late, milestones. | Pro $19 |
| Onboarding | 7 | New-hire onboarding: task templates per role, day-one to day-ninety plans. | Pro $19 |
| Supplier List | 8 | A supplier directory that does not rot: contacts, terms, lead times, review dates. | Pro $19 |
| Price Tracker | 8 | Ask your AI what something costs right now, track price drops and get told when a target price is hit. All data stays lo | Pro $19 |
Web and SEO
| Server | Tools | What it does | Price |
|---|---|---|---|
| Backlink Checker | 6 | Check backlinks from Claude or Cursor: does a page link to your domain, dofollow or nofollow, with anchor text, HTTP sta | Pro $19 |
Cooking and recipes
| Server | Tools | What it does | Price |
|---|---|---|---|
| Ingredient Convert | 7 | Cups, tablespoons, grams and ounces for 30 ingredients from a real density table, plus recipe scaling. | Bundle $39 |
Free live-data MCP servers (no key)
These 33 servers answer what a model cannot answer from training data alone: today’s prices and water levels, tax rules and limits that changed in 2025 and 2026, and exact calendar and table lookups. Each one is free, MIT licensed and hosted with no API key, so you can paste the URL into Claude.ai, ChatGPT developer mode, Cursor or Claude Code. Each page shows a real call made against the hosted URL.
| Server | Ask it | Hosted URL (no key) |
|---|---|---|
| A/B test sample size calculator | Is there an MCP server that calculates A/B test sample size and significance? Yes, this one. | https://ab-test-sample-size-calculator-mcp.lipmichal.workers.dev/mcp |
| ACA premium tax credit calculator | Is there an MCP server for the 2026 ACA premium tax credit? Yes, this one. | https://aca-premium-tax-credit-calculator-mcp.lipmichal.workers.dev/mcp |
| Address to census tract | Is there an MCP server that finds the census tract for a US address? Yes, this one. | https://address-to-census-tract-mcp.lipmichal.workers.dev/mcp |
| AP score distributions | Is there an MCP server with the 2026 AP score distributions? Yes, this one. | https://ap-score-distributions-mcp.lipmichal.workers.dev/mcp |
| Car loan interest deduction calculator | Is there an MCP server that calculates the new car loan interest deduction? Yes, this one. | https://car-loan-interest-deduction-calculator-mcp.lipmichal.workers.dev/mcp |
| CPI inflation calculator | Is there an MCP server that adjusts a dollar amount for inflation with official CPI data? Yes, this one. | https://cpi-inflation-calculator-mcp.lipmichal.workers.dev/mcp |
| Cups to grams converter | Is there an MCP server that converts cups to grams by ingredient? Yes, this one. | https://cups-to-grams-mcp.lipmichal.workers.dev/mcp |
| FDA drug shortage list | Is there an MCP server that checks the FDA drug shortage list? Yes, this one. | https://drug-shortage-list-mcp.lipmichal.workers.dev/mcp |
| DSCR loan calculator | Is there an MCP server that calculates DSCR for a rental property loan? Yes, this one. | https://dscr-loan-calculator-mcp.lipmichal.workers.dev/mcp |
| Estate and gift tax exemption calculator | Is there an MCP server that knows the 2026 estate and gift tax exemption? Yes, this one. | https://estate-gift-tax-exemption-calculator-mcp.lipmichal.workers.dev/mcp |
| Gold price per gram | Is there an MCP server for the current gold price per gram? Yes, this one. | https://gold-price-per-gram-mcp.lipmichal.workers.dev/mcp |
| I bond rate | Is there an MCP server for the current I bond rate? Yes, this one. | https://i-bond-rate-mcp.lipmichal.workers.dev/mcp |
| IRS mileage rate and per diem | Is there an MCP server for the 2026 IRS mileage rate and current per diem rates? Yes, this one. | https://irs-mileage-rate-per-diem-mcp.lipmichal.workers.dev/mcp |
| Lake level | Is there an MCP server for current lake and reservoir water levels? Yes, this one. | https://lake-level-mcp.lipmichal.workers.dev/mcp |
| Minimum wage | Is there an MCP server that looks up the minimum wage for a US state? Yes, this one. | https://minimum-wage-mcp.lipmichal.workers.dev/mcp |
| Mortgage rates today | Is there an MCP server for mortgage rates today from Freddie Mac? Yes, this one. | https://mortgage-rates-today-mcp.lipmichal.workers.dev/mcp |
| No tax on overtime calculator | Is there an MCP server that calculates the no tax on overtime deduction? Yes, this one. | https://no-tax-on-overtime-mcp.lipmichal.workers.dev/mcp |
| Paycheck calculator | Is there an MCP server that calculates take-home pay after federal and state tax? Yes, this one. | https://paycheck-calculator-mcp.lipmichal.workers.dev/mcp |
| Raw to cooked weight | Is there an MCP server that converts raw meat weight to cooked weight? Yes, this one. | https://raw-to-cooked-weight-mcp.lipmichal.workers.dev/mcp |
| Recipe nutrition calculator | Is there an MCP server that calculates recipe nutrition per serving? Yes, this one. | https://recipe-nutrition-calculator-mcp.lipmichal.workers.dev/mcp |
| Retirement contribution limits | Is there an MCP server that knows the current 401(k) contribution limits? Yes, this one. | https://retirement-contribution-limits-2027-mcp.lipmichal.workers.dev/mcp |
| River level | Is there an MCP server for the current water level of a river? Yes, this one. | https://river-level-mcp.lipmichal.workers.dev/mcp |
| SAT score percentiles | Is there an MCP server that looks up SAT score percentiles? Yes, this one. | https://sat-score-percentiles-mcp.lipmichal.workers.dev/mcp |
| Section 179 deduction calculator | Is there an MCP server that calculates the Section 179 deduction for 2026? Yes, this one. | https://section-179-deduction-calculator-mcp.lipmichal.workers.dev/mcp |
| Silver price per gram | Is there an MCP server for the current silver price per gram? Yes, this one. | https://silver-price-per-gram-mcp.lipmichal.workers.dev/mcp |
| Social Security COLA 2027 | Is there an MCP server for the 2027 Social Security COLA and full retirement age? Yes, this one. | https://social-security-cola-2027-mcp.lipmichal.workers.dev/mcp |
| Student loan RAP calculator | Is there an MCP server that calculates the new RAP student loan payment? Yes, this one. | https://student-loan-repayment-assistance-plan-calculator-mcp.lipmichal.workers.dev/mcp |
| Subdomain finder | Is there an MCP server that finds subdomains from certificate transparency logs? Yes, this one. | https://subdomain-finder-mcp.lipmichal.workers.dev/mcp |
| UK income tax and salary | Is there an MCP server that calculates UK take-home pay for 2026/27? Yes, this one. | https://uk-income-tax-salary-mcp.lipmichal.workers.dev/mcp |
| UK Statutory Sick Pay and Maternity Pay | Is there an MCP server that calculates UK Statutory Sick Pay under the April 2026 rules? Yes, this one. | https://uk-statutory-sick-pay-maternity-pay-calculator-mcp.lipmichal.workers.dev/mcp |
| US federal holidays and business days | Is there an MCP server that counts business days excluding US federal holidays? Yes, this one. | https://us-federal-holidays-business-days-mcp.lipmichal.workers.dev/mcp |
| UV index today | Is there an MCP server for the UV index today by ZIP code? Yes, this one. | https://uv-index-today-mcp.lipmichal.workers.dev/mcp |
| Vegetable yield percentage | Is there an MCP server for vegetable yield and trim loss? Yes, this one. | https://vegetable-yield-percentage-mcp.lipmichal.workers.dev/mcp |
Pricing
| What you get | Price | Notes |
|---|---|---|
| Any single server, local | Free | MIT, unlimited, offline |
| Any single server, hosted + Pro | $19 one time | Removes the saved-report cap on the hosted endpoint |
| All 58 servers | $39 one time | The bundle, lifetime, every future server included |
Buy all 58 servers for $39 · Browse a single server first
How it fits together
The collection is deliberately boring: one process per job, one SQLite/JSON store per server, no shared cloud. That is why a 3-person company can run it on a laptop and a 300-person company can run the hosted endpoints without a data-processing agreement — the data does not leave the tenant you choose.
Servers fall into five groups: invoicing and billing, documents and files, money and accounting, time and operations, and web/SEO. They are designed to be combined: an invoice server writes the PDF, a spreadsheet server reads the export, a time-tracker server supplies the billable hours.
Questions people actually ask
Are these official Anthropic MCP servers?
No. They are independent, MIT-licensed servers published on the official MCP registry
(io.github.theluckystrike/*) and on GitHub. Anthropic does not maintain or endorse them.
Do I need a paid Claude plan?
No. Any MCP-capable client works, including the free Claude Desktop app, Claude Code, Cursor, Cline and VS Code with an MCP extension. The servers are standard stdio or Streamable HTTP.
What is actually paid, then?
Only the hosted endpoint. Local use of every server is free forever. The Pro licence is $19 one time per server (or $39 for all 58) and exists to pay for the hosting, not to unlock tools.
Where is the source?
github.com/theluckystrike/mcp-servers — one directory per server, MIT licensed, with the registry manifest next to the code.