generated: '2026-07-11' method: derived source: openapi/blend-mortgage-openapi.yml summary: types: - http schemes: - name: bearerAuth type: http scheme: bearer bearerFormat: JWT description: Blend authenticates requests with an authorization Bearer token. Each call must also send blend-api-version (to pin the API version) and blend-target-instance (tenant~instance) headers. API Secret Keys are exchanged for short-lived, request-scoped JWTs at Blend's API Gateway. Credentials are issued to Blend customers and certified partners - contact your Blend account team or partnerships to obtai sources: - openapi/blend-mortgage-openapi.yml