# RevExOS Muse connector

From musedirectory.ai, the independent directory of Meta Muse connectors. Not affiliated with Meta.

## RevExOS

Parse invoices and POs, match them together, generate collection emails, and calculate billing math.

- Record: https://musedirectory.ai/connector/revexos
- Category: Finance & Bills
- Developer: RevExOS (https://revexos.com/mcp)
- Muse status: Extra setup. Not in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
- Health: Working, 507ms, checked 2026-10-29T10:31:14Z
- Endpoint: https://revexos.com/api/mcp
- Auth: No account needed; Pricing: unknown
- Screening: Screened, no issues found (2026-10-28T13:01:34Z)
- Source: Found in the official MCP Registry (com.revexos/revexos) https://registry.modelcontextprotocol.io/v0/servers?search=com.revexos%2Frevexos

Extracts data from invoices and purchase orders, matches POs to invoices for three-way reconciliation, generates accounts receivable collection emails, and calculates proration, revenue recognition schedules, late payment interest, and invoice due dates.

Example request: "Generate a collection email for an overdue invoice and check if the PO matches what was billed."

How to connect: Not in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use RevExOS to help me. It is a free service with an MCP server at https://revexos.com/api/mcp. It does not need an API key. Ask me before you share anything with it." Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.

Tools:
- generate_ar_collection_email: Generate a ready-to-send accounts receivable follow-up email for an overdue or upcoming invoice, tuned by how overdue it is (1-6) and whether to protect a long-term relationship. Requires an email address to attribute the request; RevExOS sends occasional updates about new free A
- parse_invoice: Extract structured data from an invoice (PDF, PNG, JPEG, WebP or GIF, up to 10MB) at a public https URL or attached in ChatGPT: invoice number, dates, PO number, vendor and customer, currency, payment terms, subtotal, tax, total, and every line item. Also checks whether the line 
- parse_purchase_order: Extract structured data from a purchase order (PDF or image, up to 10MB) at a public https URL or attached in ChatGPT: PO number, dates, buyer and vendor, currency, payment terms, totals and every line item with SKU, quantity and unit price. A URL must download the file directly 
- match_po_to_invoice: Compare a purchase order with the invoice billed against it (the PO and invoice legs of a three-way match). Each file (PDF or image) is a public https URL or a file attached in ChatGPT. Returns both extracted documents plus header checks (PO number, buyer, vendor, currency) and l
- calculate_proration: Prorate a mid-period plan change (upgrade, downgrade, seat change): credit for the unused part of the old plan, charge for the rest of the period on the new plan, and the net amount. Method "months" (default) counts every whole month of the period equally and splits only the part
- build_revrec_schedule: Build a month-by-month revenue recognition schedule (ASC 606 / IFRS 15 style, single performance obligation) with billed, recognized, deferred revenue and unbilled revenue per month. Models: "subscription" (equal per full month, partial first/last month by its own days, billed up
- calculate_late_payment_interest: Simple interest on an overdue invoice: amount x annual rate x days overdue / 365, plus a flat late fee. Mode "annual" (contract rate per year), "monthly" (rate per month, converted x12), or "uk" (UK Late Payment of Commercial Debts Act: 8% + Bank of England base rate, plus fixed 
- calculate_invoice_due_date: Work out an invoice due date from its payment terms (due on receipt, Net 7/10/14/15/30/45/60/90, EOM, Net 30 EOM, or a custom number of days), and the date the cash actually lands after a late payment and the payment method clearing time (card 0, wire 1, ACH 2, check 7 business d

Screening checks:
- MCP handshake: pass (Answered in 670ms)
- Domain against threat feeds (Cloudflare security DNS): pass (revexos.com not flagged)
- Published packages against the OSV malicious-package database: n/a (No npm or PyPI package published)
- Hidden instructions or invisible characters in tool text: pass (8 tools read, nothing found)
- Inputs asking for passwords, card numbers or seed phrases: pass (None found)
- Domain and redirects: pass (Domain registered 352 days ago)
- AI review of purpose and tool behavior: pass (No concerns)