generated: '2026-08-04' method: searched source: https://developer.ncinomortgage.com/mortgage/docs/postman-collection, https://developer.ncino.com/e-vault/docs/testing-development-tools, openapi/ncino-evault-openapi.json summary: 'nCino publishes no self-serve public sandbox or test-mode key prefix. Testing is done against a customer tenant with real API credentials issued from the product UI. Two genuine test surfaces exist: the eVault API''s stage environment, selected by a path parameter, and webhook test-event and connectivity-check operations.' self_serve_sandbox: false test_vs_live: mortgage: separation: none published key_prefixes: [] note: A single set of API credentials (API Key + API Secret) is issued per tenant from API Settings in the nCino Mortgage web application; there is no documented test-mode credential or test-mode key prefix. credential_docs: https://developer.ncinomortgage.com/mortgage/docs/obtaining-an-api-key credential_management: - https://developer.ncinomortgage.com/mortgage/docs/cloning-an-api-credential - https://developer.ncinomortgage.com/mortgage/docs/editing-an-api-credential - https://developer.ncinomortgage.com/mortgage/docs/resetting-an-api-secret evault: separation: path parameter parameter: environment values: - stage - production example: stage note: Every eVault eNote, transaction and audit-log route is prefixed with the environment segment, so the same credentials and the same routes address a stage or a production vault. credential_docs: https://developer.ncino.com/e-vault/docs/obtaining-api-credentials test_values: magic_identifiers: [] test_cards: [] note: nCino publishes no magic test identifiers, test card numbers or fixture data. test_tooling: - name: Webhook test events operation: webhooks-test_events path: POST /webhooks/{webhook_id}/test_events api: openapi/ncino-mortgage-openapi.yml description: Fire a test delivery at a registered webhook endpoint so a listener can be validated without producing real platform activity. - name: eVault connectivity check path: GET /connectivity-check and GET /{environment}/connectivity api: openapi/ncino-evault-openapi.json description: Verify credentials and reachability against a vault environment before running eNote operations. - name: eVault webhook test path: POST /webhooks/{webhook_id}/test api: openapi/ncino-evault-openapi.json description: Send a test event to a registered eVault webhook. - name: Postman collection url: https://api.ncinomortgage.com/developer_info/postman_collection/1.0 official: true description: Public, unauthenticated download of the full nCino Mortgage Postman collection. Set the auth_client_id and auth_client_secret collection variables; a pre-request script mints the OAuth token before every call. - name: OpenAPI download url: https://api.ncinomortgage.com/developer_info/openapi/1.0 official: true description: Public, unauthenticated download of the consolidated nCino Mortgage OpenAPI 3.0 document (251 operations) for import into API tooling. time_simulation: supported: false