FreightSigil checks carrier invoices against your rate agreements and shows exactly where the numbers don't match — with the contract clause, the calculation, and the evidence to prove it.
No integration required for your first test. Upload an invoice and a rate card.
Reads the invoice and rate card, proposes the fields.
Runs the deterministic calculation — no model decides a dollar figure.
Every finding cites the exact contract clause it's checked against.
Approve before anything is sent to a carrier as a claim.
Enterprise freight audit firms exist and process real volume — but they're built for shippers spending $50M+ a year, with custom pricing and multi-month onboarding. Below that, most finance teams are down to a spreadsheet and a hunch.
Contracted caps and discounts that quietly don't make it onto the invoice.
The same charge, same BOL, billed more than once across a busy invoice run.
A lean finance team can sample a few invoices a month. The rest get paid on trust.
This anonymous, read-only check calls the deployed FreightSigil API. It uses the same deterministic engine as the private workflow without exposing customer data.
Click Run live check to verify the deployed API.
Send a recent invoice and your rate agreement. No integration, no card, no obligation — and we won't contact a carrier without your written approval.
The public demo calls the deployed deterministic engine with a fixed illustrative invoice. It creates no tenant and no claim; private document analysis remains behind the authenticated API.
Analyze my invoicesEight steps, and nothing skips the evidence.
Invoice and rate agreement — JSON today; document ingestion is planned.
Fields are proposed, not assumed — extraction/OCR is the next milestone.
Checked against the contract version active on the invoice date.
A deterministic rule computes the variance — same inputs, same answer.
Source documents and the calculation stay attached to the finding.
An explicit approval gate keeps uncertain findings out of claim flow.
A dispute letter can be generated only from a dispute-ready finding.
Follow the real outcome from flagged through actually recovered.
The live demo returns an Evidence Assurance score with a visible calculation. The example is illustrative and stays out of any carrier workflow until a human approves a real finding.
Illustrative dashboard layout mapped to the authenticated /claims/recovery-summary response. Values stay blank until a workspace is connected.
Connect an authenticated workspace to load recovery values. The public demo never touches this data.
Freight audit firms often take 30–50% of what they find. FreightSigil charges a flat monthly fee by invoice volume instead — the incentive stays pointed at finding every discrepancy, not just the biggest ones.
FreightSigil is designed as an integration layer for TMS, ERP, AP and carrier workflows. Machine clients get a versioned API; operators keep the evidence and approval boundary.
Send an invoice once, retry safely with an idempotency key, receive queued audit events, and trace every calculation back to an approved rate rule. The public demo is read-only; customer data stays behind tenant-scoped authentication.
POST /integrations/v1/invoices/audit X-API-Key: fs_live_•••• Idempotency-Key: invoice-4727960-v1 { "carrier_name": "APM Terminals", "invoice_number": "4727960", "lines": [{ "charge_code": "STORAGE", "billed_amount": 9923633, "billable_days": 126 }] }
Stated plainly, matched to what's built today — not what's planned.
Every record is scoped to your organization at the database query level.
Token-based authentication (JWT) — every request resolves to an authenticated user and org.
Bcrypt hashing — no password is ever stored in plain text.
Every uploaded file is SHA-256 hashed at ingestion, so you can always prove which document an audit used.
Every state-changing action is recorded as a new row — never edited or deleted.
No AI-proposed rule can affect a calculation until a person explicitly approves it.
We'll show you exactly what doesn't line up — with the evidence, not just a guess.
Test your invoices free