nCino · OpenAPI Overlay 1.0.0

API Evangelist enhancements for the nCino Mortgage API

5 actions 5 updates update extends openapi/ncino-mortgage-openapi.yml
Generated by API Evangelist Written by API Evangelist tooling for nCino's API. It is a proposal applied on top of the contract, not a document nCino publishes.
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What the actions change

x-apievangelist-profilex-apievangelist-harvested-fromx-apievangelist-harvested-onx-apievangelist-operationsx-apievangelist-schemasx-apievangelist-beta-operationsx-apievangelist-notesx-apievangelist-artifacts

Targets 3

$.info
$.servers
$.components.securitySchemes.OAuth2

OpenAPI Overlay

Raw ↑ 
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