Bills in. Books updated. Nobody typed a thing.
From the moment a bill arrives — by email, upload or postal mail — to the moment it's paid and posted, Slingstone AP Automation does the work and leaves your team the decisions.
How it works
Four steps, mostly handled by AI.
Capture
Bills arrive at a dedicated inbox per company, by upload, or scanned from paper mail. Each document is stored once and checked for duplicates.
Code
AI extracts vendor, amounts, lines and dates, then codes GL accounts, departments and classes using what it has learned about each vendor.
Approve
Rules route each bill to the right approvers by amount, entity, department or vendor — with reminders and escalations.
Pay and post
Approved bills post to your ledger with the image attached. A person releases every payment, by ACH file, check or card.
Everything in AP Automation
The depth you'd expect from the incumbents — rebuilt so the application does the work.
marks a feature powered by AI
Intake
- A dedicated email address per company, with automatic routing
- Drag-and-drop upload of PDFs and images
- Postal mail scanned and routed from Slingstone Mail
- Duplicate detection by document fingerprint and invoice data
- Vendor statements and credit memos handled the same way
- AI splits multi-invoice PDFs and separates attachments
AI extraction and coding
- Header and line-item extraction from any invoice layout
- GL, department, class and location coding with confidence scores
- Vendor memory: learns each vendor's usual coding per company
- Purchase order and receipt matching
- Earned autonomy: AI handles more as its accuracy is proven
Approvals and workflow
- Rules by amount, entity, department, vendor or GL
- Multi-step and parallel approvals
- Separation of duties: the approver can't release the payment
- Reminders, delegation and escalation
- Signed reply links so approvers can act from email
- AI drafts approver summaries with the context they need
Payments
- Payment worksheet prioritized by due date and cash position
- ACH payment files, checks and card payments
- Two-tier human release on every payment
- Extra approval for tax and government payments
- Vendor bank changes require verified human approval
- AI risk notes on every payment before release
Checks: print and mail
- Print checks on your own blank check stock, with MICR line, logo and signature
- Or let Slingstone print and mail checks for you — first-class or certified
- Tracking and delivery confirmation on mailed checks
- Positive pay files for your bank
- Void, stop and reissue with a full audit trail
- AI recommends the best payment method per vendor and due date
Vendors and fraud prevention
- Vendor records with bank details masked and vaulted
- Look-alike sender and domain detection
- Holds on suspicious bank-change requests
- 1099 tracking
- AI flags unusual amounts, timing and new-vendor risk
Multi-entity
- Run any number of companies from one login
- Intercompany bills and allocations
- Company-scoped roles and permissions
- Consolidated views across entities
AI-guided implementation
- AI configures your setup from connected systems and documents
- Every AI-set value marked with its source for your review
- Step-by-step AI implementation guide
- History imported with AI column mapping
- Shadow mode to compare AI with your team before go-live
AI access from your tools
- Connect Claude, ChatGPT, Gemini or Grok through MCP
- Ask questions of your live data in plain English
- Assistants propose; people approve and release
- Same roles and permissions as the application
What the AI actually does
Not a chatbot in the corner. AI is how the work gets done.
Reads every invoice
Vision-capable AI reads any layout — no templates to build or maintain.
Codes like your best clerk
It learns vendor-by-vendor and company-by-company, and explains every coding choice.
Flags what's off
Duplicates, unusual amounts, new bank details and look-alike senders are caught before money moves.
Controls you can show an auditor
- A person releases every payment — AI never can
- Approver and releaser must be different people
- Hash-chained audit log of every action
- Role-based access scoped by company
Connects with
Works even better together
Every Slingstone application shares the same data and the same AI.
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 demoOr email us at hello@slingstonehq.com