Next-generation, AI-first applications

Legacy applications had a good run. We'll take it from here.

Slingstone builds AI-first applications for compliance, finance operations, mail and recruiting — applications that do the work instead of waiting for you to do it. It plugs into the systems you already run and gets smarter every day you use it.

Ask Slingstone

Don't browse. Ask.

Our AI knows every application, integration and feature. Ask it anything.

AI that does the workFits your stackWorks with the AI you already useEvery decision explained

Your back office deserves this decade's applications.

The big vendors got comfortable. Renewals went up, roadmaps slowed down, and your team kept doing the work the application was supposed to do.

The way it's been

  • Applications that track the work — people still do it
  • Exports, spreadsheets and re-keying between systems
  • Upgrade projects and slow-moving roadmaps
  • Annual price increases for the same product
  • Locked into one platform's ecosystem

The Slingstone way

  • AI agents that read, check, code and file for you
  • Two-way sync with the systems you already use
  • Continuous improvement — no upgrade projects
  • Pricing built around value, not lock-in
  • Platform-agnostic by design

One suite. Every back-office grind.

Use one application or the whole suite. Each one is built AI-first, and they share the same intelligence about your business — so a scanned bill in Mail becomes a coded invoice in AP without anyone touching it.

Slingstone AP Automation

Bills in. Books updated. Nobody typed a thing.

Accounts payable automation that captures, codes, routes and posts invoices to your accounting system or ERP.

  • AI invoice capture and GL coding
  • Approval routing with separation of duties
  • Duplicate and fraud detection
  • ACH, card and checks on your own stock — printed and mailed for you
Explore AP Automation →

Slingstone Compliance

Beverage alcohol compliance, handled.

Direct-to-consumer, wholesale and 3PL compliance that checks every order, files every report — and receives and handles every email and letter from regulators and tax agencies.

  • Real-time order checks
  • Licenses, volume limits and taxes across states
  • Automated reports and filings
  • All regulator and tax agency mail and email handled
Explore Compliance →

Slingstone Mail

All your mail. One inbox. Handled.

Every piece of business mail — letters, statements, checks, notices and packages — arrives at your Slingstone address, is scanned, read by AI and turned into the right action for the right person.

  • 53 addresses in 53 cities across 44 states + D.C.
  • All mail scanned and searchable online
  • AI sorts, summarizes and assigns every piece
  • Checks deposited, packages forwarded, junk shredded
  • Bills flow straight into AP Automation
See all 53 addresses in 53 cities, 44 states + D.C. →
Explore Mail →

Slingstone Contracts

Every contract tracked. Every notice sent on time.

Contracts and leases tracked from signature to renewal — with AI that reads the terms, watches the dates, and generates and sends legal notices by email, regular mail or certified mail.

  • AI reads contracts and leases into structured terms
  • Renewal, notice and obligation tracking
  • AI-generated legal notices
  • Sent by email, first-class or certified mail
Explore Contracts →

Slingstone Expense

Expense reports nobody has to chase.

Company and personal cards, receipts and reimbursements — matched, policy-checked and posted automatically.

  • Live card feeds and receipt matching
  • Policy checks before approval
  • Snap receipts from your phone
Explore Expense →

Slingstone Treasury

Know your cash. Move it smarter.

Cash position, payment planning and intercompany sweeps across every entity and bank account in one view.

  • Daily cash position across banks
  • Prioritized payment runs
  • Intercompany balances and sweeps
Explore Treasury →

Slingstone Loans

Debt schedules that maintain themselves.

Upload a loan or lender agreement and AI builds the schedule — interest, payments, covenants and journal entries included.

  • AI reads lender agreements
  • Amortization and interest accruals
  • Automatic journal entries
Explore Loans →

Slingstone Assets

Fixed assets and prepaids on autopilot.

Depreciation and amortization schedules built from your invoices — and posted every month without a spreadsheet.

  • Fixed asset register and depreciation
  • Prepaid amortization
  • Lease accounting schedules
Explore Assets →

Slingstone Close

Month-end, without the all-nighters.

An AI closing checklist that does the reconciliations it can, flags what it can't, and lets you ask your books questions in plain English.

  • AI-driven close checklist
  • Reconciliation and anomaly checks
  • "Ask the data" in plain English
Explore Close →

Slingstone Recruit

A recruiting platform that actually recruits.

An AI-first applicant tracking system for staffing and recruiting teams — sourcing, screening, engagement and onboarding on one platform.

  • AI search, match and screening
  • Applicant tracking with custom workflows
  • Omni-channel outreach and scheduling
  • Onboarding and compliance workflows
Explore Recruit →
AI-first, not AI-added

Built around AI from line one.

Most vendors bolted a chatbot onto applications designed in another era. We started over.

01

It does the work

Agents handle the repetitive tasks end to end — reading documents, checking rules, coding transactions and filing reports.

02

It shows its work

Every decision comes with the reasoning and source behind it, so your controllers and auditors can see exactly what happened and why.

03

You stay in control

Set the guardrails, approve the exceptions, and let the routine run on its own. The more you use it, the less it needs you.

AI-guided implementation

No consultants. No setup spreadsheets.

Traditional back-office software takes months of consultants, workshops and data mapping. Slingstone's AI does the heavy lifting — your team reviews and approves.

1

Connect

Link your accounting system, banks and other systems. AI reads your chart of accounts, vendors, dimensions and history.

2

Configure

AI reads the documents you upload — licenses, contracts, loan agreements — and proposes approval rules, coding, policies and schedules.

3

Review

Every value AI set is marked with its source. A step-by-step AI implementation guide shows what's done, what needs you, and what's next.

4

Go live in shadow

AI runs alongside your team first, so you can compare results before it takes on real work.

Your AI, connected

Work with Slingstone from the AI tools you already use.

Slingstone speaks MCP — the open standard for connecting AI assistants to business applications. Ask Claude, ChatGPT, Gemini or Grok what's due this week, why a bill was coded the way it was, or which licenses expire next quarter, and get answers from your live Slingstone data.

Ask in plain English

Query bills, payments, cash, licenses and filings from the assistant your team already has open.

Act with guardrails

Assistants can prepare and propose work. Approvals and payment releases stay with people, under the same permissions as the app.

Your choice of model

Claude, ChatGPT, Gemini, Grok — or any MCP-compatible assistant or agent your company adopts next.

ClaudeChatGPTGeminiGrokAny MCP client
Integrations

Bring your own stack.

Slingstone isn't married to any one platform. We connect to the ERP, accounting, commerce, banking and warehouse systems you already run — and when you change systems, we come with you.

ERP and accounting

Two-way sync of bills, journals, vendors, charts of accounts and attachments.

NetSuite, QuickBooks Online, Intuit Enterprise Suite, Other ERPs

Commerce and point of sale

Orders, payouts and customer data for compliance and cash application.

Shopify, Toast, Commerce7

Banking and cards

Live balances and transactions from bank accounts, corporate cards and personal cards at more than 12,000 financial institutions — plus payment and bank files.

Bank accounts, Corporate cards, Personal cards, American Express, Chase, Citi, Capital One, ACH / NACHA, Positive pay

AI assistants (MCP)

Use Slingstone from the AI tools your team already works in, through the Model Context Protocol.

Claude, ChatGPT, Gemini, Grok, Any MCP client

Microsoft 365

Sign in with your company account, get notified where you work, archive where you store.

Microsoft Entra ID, Microsoft Teams, SharePoint and OneDrive

Build your own

Connect anything else.

REST API, File imports, Email inboxes
See all integrations

Goliath never saw it coming.

David didn't win by being bigger. He was faster, more precise, and brought the right tool.

That's how we build. We look for markets where a few large vendors have grown comfortable — and we give their customers something better.

FAQ

Questions, answered.

The most common ones are below. For anything else, or see the full FAQ.

What does AI-first mean?

Slingstone was designed around AI from the start. AI reads documents, checks rules, codes transactions, drafts filings and routes work. People set the guardrails, approve exceptions and make the decisions that matter.

Will AI make decisions without us?

Only where you allow it. AI earns autonomy task by task — first shadowing your team, then suggesting, then acting on proven, low-risk work. Payment releases, vendor bank changes and approvals always stay with people.

Can we use Slingstone from ChatGPT, Claude, Gemini or Grok?

Yes. Slingstone connects to AI assistants through MCP, the open standard for linking assistants to business applications. Your team can ask questions and prepare work from the assistant they already use, under the same permissions as the app.

How do you prevent payment fraud?

A person releases every payment, the approver and the releaser must be different people, vendor bank changes require verified human approval, and inbound email is checked for look-alike senders and domains.

Does Slingstone Compliance file returns, or just check orders?

Both. It checks orders in real time, tracks licenses and limits, and prepares, files and schedules payment for returns once you approve them.

What mail can Slingstone Mail handle?

All of it — letters, statements, invoices, checks, tax and legal notices, and packages. Point all your company mail to your Slingstone address.

See what your applications should have been doing all along.

Book a 30-minute demo and we'll show you Slingstone working with your systems and your workflows.

Book a demo

Or email us at hello@slingstonehq.com