RevExOS MCP server

• Registry namecom.revexos/revexosverified in the MCP registry

The registry name sits under revexos.com. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

• Stateanswerschecked 2026-10-19
• Tools8
• Server calls itselfrevexos
• Server version1.1.0
• Protocol version2025-06-18

On 2026-10-19 the server answered initialize and tools/list without a sign-in. First answer in 897 ms.

• Whether its tools do the product's job has not been judged yet.
• Checked on 6 of the 7 days it takes to judge reliability.

Said by rules from the measurements above. The likely first call is a model's pick from the tool list; read its description before relying on it.

• INITE MCP scoreafter a weeka score needs 7 daily checks: 6 so far
• Answeredmeasuring6 of the 7 daily checks it takes to print a share
• Median first answer181 ms
• Space in an agent's context≈ 3,330 tokensthe definitions of all its tools (8), which an agent carries on every turn
• Tool definitionsA · 94 of 100
• Typed results0 of 8 toolsdeclared outputSchema: results come typed, read once

• Parameters without a description: in 3 of 8

A program checks the server once a day: initialize and tools/list, no model. Tokens are the definitions' length at about four characters a token. The grade averages six checks of every tool's name, description, schema and annotations; it says how well the tools are described, not whether they work. The score weighs what was measured and nothing else: answering (30%), doing the product's job (25%), definitions (20%), context (10%) and use (15%). A part that was not measured is left out, and a hidden instruction caps the score at 40. The state of vendors' MCP servers: method and numbers →

• 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…

• 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…

• 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…

• 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…

• 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…

• 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…

• 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…

• 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…