AvidXchange API
AvidXchange offers partner-gated REST APIs and prebuilt UI components for embedding AP and payments into ERPs, with 240+ published accounting integrations. There is no public developer portal, API reference, or self-serve key issuance; access comes through bilateral partner contracts.
Frequently asked questions
AvidXchange scores F on the API Report Card. AvidXchange offers partner-gated REST APIs and prebuilt UI components for embedding AP and payments into ERPs, with 240+ published accounting integrations. There is no public developer portal, API reference, or self-serve key issuance; access comes through bilateral partner contracts.
Without a usable official API, teams fall back on manual exports, file drops, or one-off vendor integrations. The other option is an unofficial API layer like Supergood that automates the authenticated web app directly.
AvidXchange is a Charlotte, NC-headquartered accounts payable (AP) automation and B2B payments platform founded in 2000 by Michael Praeger.
Vertical: Financial Services (AP automation, B2B payments, spend management). Invoice receipt via email, mail-to-PO-box, EDI, or supplier portal upload. OCR + human-in-the-loop invoice indexing (header data, line items, GL codes). Configurable multi-step approval workflows with full audit trail.
High within mid-market AP automation. AvidXchange and Bill.com together account for the majority of mid-market AP automation share in North America (AvidXchange is cited at ~18% market share).
Invoices: header (vendor, invoice #, date, amount, due date, PO ref), line items, GL/dimension/job coding, attached images, approval state, audit history. Suppliers: name, address, tax ID, payment method preference, AvidPay enrollment status, remit-to addresses, 1099 status.
Founded in 2000; ~26 years old as of 2026. AvidXchange predates the modern SaaS AP wave by roughly a decade, and the platform shows it in places, the AvidInvoice UI has been criticized as dated and slow vs. AI-native entrants like Stampli and Vic.ai.
Grades measure one thing: can a customer's engineering team get their own data out programmatically? We check six things (whether a real API exists, how access is gated, data coverage, auth quality, docs and developer experience, and stability) and roll them into a letter grade. Grades get re-verified, and they only move on evidence.
Yes. Supergood maintains an unofficial AvidXchange API and MCP server so AI agents and internal tools can read and write AvidXchange data. See the AvidXchange integration docs at supergood.ai/docs/avidxchange-api.