overlay: 1.0.0 info: title: API Evangelist enhancements for the nCino Mortgage API version: 1.0.0 extends: openapi/ncino-mortgage-openapi.yml x-generated: '2026-08-04' x-method: generated x-source: https://api.ncinomortgage.com/developer_info/openapi/1.0 actions: - target: $.info update: x-apievangelist-profile: https://apis.io/providers/ncino x-apievangelist-harvested-from: https://api.ncinomortgage.com/developer_info/openapi/1.0 x-apievangelist-harvested-on: '2026-08-04' x-apievangelist-operations: 251 x-apievangelist-schemas: 422 x-apievangelist-beta-operations: 93 x-apievangelist-notes: Consolidated public download of the eight per-service definitions the ReadMe portal renders separately (foundation, loan-applications, loans, organizations, rbac, services, user-management, webhooks). - target: $.info update: x-apievangelist-artifacts: authentication: authentication/ncino-authentication.yml scopes: scopes/ncino-scopes.yml conventions: conventions/ncino-conventions.yml errors: errors/ncino-problem-types.yml lifecycle: lifecycle/ncino-lifecycle.yml data_model: data-model/ncino-data-model.yml sandbox: sandbox/ncino-sandbox.yml webhooks: asyncapi/ncino-mortgage-webhooks.yml mcp: mcp/ncino-mcp.yml tool_crosswalk: mcp/ncino-tool-crosswalk.yml skills: skills/_index.yml - target: $.info update: x-apievangelist-gaps: - No Idempotency-Key, ETag or If-Match contract; write retries are not safe and duplicates surface as 409 after the fact. - No rate-limit, quota or Retry-After signaling is declared anywhere in the spec or the docs. - Errors use a JSON:API-style errors[] envelope rather than RFC 9457 application/problem+json, and carry no stable per-problem type URI. - No operation carries deprecated:true and no Sunset/Deprecation header support is declared, so consumers have no machine-readable retirement signal. - 'Beta status is carried in prose inside the description rather than in a machine-readable extension; 93 of 251 operations are beta, and several beta descriptions ship an internal note reading "TODO: Remove the line below when endpoint is ready to go live for customers".' - The OAuth2 clientCredentials flow declares a relative tokenUrl (/oauth/token) and an empty scopes map, so the sole documented scope (external) is not discoverable from the spec. - AUS schemas (AusOrderBody, AusOrderResult, AusFinding, AusFindingList) are defined but referenced by no path, while the LO MCP server exposes run_aus and fetch_aus_history — the REST contract does not describe a capability the agent surface offers. - target: $.servers update: - url: https://api.ncinomortgage.com description: Production server x-apievangelist-tls: TLSv1.3 x-apievangelist-hsts: false - target: $.components.securitySchemes.OAuth2 update: x-apievangelist-token-url: https://api.ncinomortgage.com/oauth/token x-apievangelist-scopes-documented: - external x-apievangelist-token-lifetime-seconds: 900 x-apievangelist-docs: https://developer.ncinomortgage.com/mortgage/docs/authentication-1