generated: '2026-08-29' method: searched source: https://docs.abbyy.com/vantage/developer/authentication/authentication + openapi/_original/abbyy-vantage-processing-openapi.json (fetched https://docs.abbyy.com/openapi.json, HTTP 200) summary: types: - oauth2 oauth2_flows: - authorizationCode schemes: - name: OAuth2Security type: oauth2 flows: - flow: authorizationCode authorizationUrl: https://vantage-us.abbyy.com/auth2/connect/authorize tokenUrl: https://vantage-us.abbyy.com/auth2/connect/token scopes: 3 sources: - openapi/abbyy-vantage-processing-openapi.yml - openapi/abbyy-vantage-reporting-openapi.yml - openapi/abbyy-vantage-reporting-v1-openapi.yml docs: https://docs.abbyy.com/vantage/developer/authentication/authentication note: The Vantage OpenAPI declares only the OAuth 2.0 authorization-code flow, but ABBYY documents three flows for the same token endpoint. Bearer token goes in the Authorization header on every request. The FlexiCapture Cloud for Invoices API is a separate surface using HTTP Basic auth with an application id and token, base64-encoded. documented_flows: - flow: authorizationCode pkce: true best_for: User-facing applications docs: https://docs.abbyy.com/vantage/developer/authentication/authorization-code-flow - flow: clientCredentials best_for: Machine-to-machine integrations docs: https://docs.abbyy.com/vantage/developer/authentication/client-credentials - flow: password best_for: Server-to-server integrations (Resource Owner Password Credentials) docs: https://docs.abbyy.com/vantage/developer/authentication/resource-owner-password-credentials token_endpoints: - region: US authorizationUrl: https://vantage-us.abbyy.com/auth2/connect/authorize tokenUrl: https://vantage-us.abbyy.com/auth2/connect/token - region: EU authorizationUrl: https://vantage-eu.abbyy.com/auth2/connect/authorize tokenUrl: https://vantage-eu.abbyy.com/auth2/connect/token - region: AU authorizationUrl: https://vantage-au.abbyy.com/auth2/connect/authorize tokenUrl: https://vantage-au.abbyy.com/auth2/connect/token other_surfaces: - api: ABBYY FlexiCapture Cloud for Invoices API type: http scheme: basic credential: application id + token, colon-joined and base64-encoded docs: https://docs.abbyy.com/flexi-capture/cloud/cloud-f-cfor-invoices-api-auth - api: ABBYY Documentation MCP Server type: none credential: anonymous — no token required docs: https://docs.abbyy.com/vantage/developer/mcp-server onboarding: self_serve: false note: A Vantage tenant is provisioned by ABBYY on request; API clients are then created by the tenant admin under Administration > API clients. request_url: https://www.abbyy.com/company/contact-us/