aid: blend-mortgage url: https://raw.githubusercontent.com/api-evangelist/blend-mortgage/refs/heads/main/apis.yml name: Blend kind: company description: Blend (Blend Labs) is a cloud digital-lending and account-opening platform for banks, credit unions, and mortgage lenders. Its Builder platform powers consumer-facing origination for mortgage (home lending), consumer lending (home equity, personal loans, credit cards, auto), and deposit account opening. The Blend Public API is a documented REST surface (developers.blend.com) that lets lenders and their technology partners create and manage lending applications, borrowers/parties, documents and disclosures, pricing, closings and eSignature packages, follow-ups (tasks), assignments, and webhook event notifications, and to export industry-standard loan files (Fannie Mae 3.2, MISMO 3.3.1/3.4) into a loan origination system (LOS). API access is credential-gated - tokens are issued to Blend customers and certified integration partners rather than through open self-service signup. image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg tags: - Digital Lending - Mortgage - Consumer Lending - Account Opening - FinTech - Loan Origination - Banking - Financial Services created: '2026-07-04' modified: '2026-07-04' specificationVersion: '0.19' apis: - aid: blend-mortgage:blend-mortgage-home-lending-applications-api name: Blend Home Lending Applications API tags: - Home Lending - Mortgage - Applications image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg humanURL: https://developers.blend.com/blend/docs/create-a-new-home-loan baseURL: https://api.blendlabs.com properties: - url: https://developers.blend.com/blend/docs/create-a-new-home-loan type: Documentation - url: https://developers.blend.com/blend/reference type: APIReference - url: openapi/blend-mortgage-openapi.yml type: OpenAPI - url: collections/blend-mortgage.postman_collection.json type: PostmanCollection - url: collections/blend-mortgage.opencollection.json type: OpenCollection description: Create, list, retrieve, update, and delete home lending (mortgage) applications. Manage LOS milestones, decisions, intent-to-proceed, underwriting results, activities, and lender takeover. The minimum to create an application is the primary borrower party name and email. - aid: blend-mortgage:blend-mortgage-borrowers-parties-api name: Blend Borrowers & Parties API tags: - Borrowers - Parties - Coborrowers image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg humanURL: https://developers.blend.com/blend/reference baseURL: https://api.blendlabs.com properties: - url: https://developers.blend.com/blend/reference type: APIReference - url: openapi/blend-mortgage-openapi.yml type: OpenAPI - url: collections/blend-mortgage.postman_collection.json type: PostmanCollection - url: collections/blend-mortgage.opencollection.json type: OpenCollection description: Manage the parties (borrowers, coborrowers, realtors) on an application - add and update parties, capture eConsent, and attach party employers, other incomes, and borrower positions. - aid: blend-mortgage:blend-mortgage-documents-disclosures-api name: Blend Documents & Disclosures API tags: - Documents - Disclosures - Export image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg humanURL: https://developers.blend.com/blend/docs/export-a-home-loan baseURL: https://api.blendlabs.com properties: - url: https://developers.blend.com/blend/docs/export-a-home-loan type: Documentation - url: https://developers.blend.com/blend/reference type: APIReference - url: openapi/blend-mortgage-openapi.yml type: OpenAPI - url: collections/blend-mortgage.postman_collection.json type: PostmanCollection - url: collections/blend-mortgage.opencollection.json type: OpenCollection description: Retrieve application and borrower documents, upload documents, read document metadata and export statuses, pull tax transcripts, and export the industry-standard loan application file in Fannie Mae 3.2 or MISMO 3.3.1/3.4 format for import into an LOS. - aid: blend-mortgage:blend-mortgage-products-pricing-api name: Blend Products & Pricing API tags: - Pricing - Products - Rates image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg humanURL: https://developers.blend.com/blend/reference baseURL: https://api.blendlabs.com properties: - url: https://developers.blend.com/blend/reference type: APIReference - url: openapi/blend-mortgage-openapi.yml type: OpenAPI - url: collections/blend-mortgage.postman_collection.json type: PostmanCollection - url: collections/blend-mortgage.opencollection.json type: OpenCollection description: Apply a priced product to a loan application, aligning the selected rate and product to the borrower's chosen loan terms. - aid: blend-mortgage:blend-mortgage-closings-esign-api name: Blend Closings & eSignature API tags: - Closings - eSignature - Packages image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg humanURL: https://developers.blend.com/blend/reference baseURL: https://api.blendlabs.com properties: - url: https://developers.blend.com/blend/reference type: APIReference - url: openapi/blend-mortgage-openapi.yml type: OpenAPI - url: collections/blend-mortgage.postman_collection.json type: PostmanCollection - url: collections/blend-mortgage.opencollection.json type: OpenCollection description: Create and manage closings and eSignature packages - draft and send pre-closing and closing documents, manage eNotes, schedule Remote Online Notarization (RON) sessions, retrieve RON recordings, and issue signable document packages to borrowers. - aid: blend-mortgage:blend-mortgage-follow-ups-tasks-api name: Blend Follow-ups (Tasks) API tags: - Follow-ups - Tasks - Conditions image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg humanURL: https://developers.blend.com/blend/reference baseURL: https://api.blendlabs.com properties: - url: https://developers.blend.com/blend/reference type: APIReference - url: openapi/blend-mortgage-openapi.yml type: OpenAPI - url: collections/blend-mortgage.postman_collection.json type: PostmanCollection - url: collections/blend-mortgage.opencollection.json type: OpenCollection description: Create, list, retrieve, update, and remove follow-ups (borrower tasks and conditions) on an application to request documents or actions from borrowers during the origination workflow. - aid: blend-mortgage:blend-mortgage-events-webhooks-api name: Blend Events & Webhooks API tags: - Events - Webhooks - Notifications image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg humanURL: https://developers.blend.com/blend/docs/los-guide-how-to-integrate-with-blend baseURL: https://api.blendlabs.com properties: - url: https://developers.blend.com/blend/docs/los-guide-how-to-integrate-with-blend type: Documentation - url: https://developers.blend.com/blend/reference type: APIReference - url: openapi/blend-mortgage-openapi.yml type: OpenAPI - url: collections/blend-mortgage.postman_collection.json type: PostmanCollection - url: collections/blend-mortgage.opencollection.json type: OpenCollection description: Standard webhook event notifications (Application Submitted, Documents Submitted, Consumer Information Updated, Application Information Updated) plus a REST events surface to list events, get event descriptions, and acknowledge event status - used to drive LOS import and downstream automation. - aid: blend-mortgage:blend-mortgage-consumer-deposit-api name: Blend Consumer Lending & Deposit Accounts API tags: - Consumer Lending - Deposit Accounts - Account Opening image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg humanURL: https://developers.blend.com/blend/reference baseURL: https://api.blendlabs.com properties: - url: https://developers.blend.com/blend/reference type: APIReference - url: openapi/blend-mortgage-openapi.yml type: OpenAPI - url: collections/blend-mortgage.postman_collection.json type: PostmanCollection - url: collections/blend-mortgage.opencollection.json type: OpenCollection description: Retrieve and update consumer lending applications and their documents, read account-opening applications, and list deposit account applications, products, and fundings for the banking/account-opening side of the Blend platform. - aid: blend-mortgage:blend-mortgage-lenders-assignments-api name: Blend Lenders & Assignments API tags: - Lenders - Assignments - Users image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg humanURL: https://developers.blend.com/blend/reference baseURL: https://api.blendlabs.com properties: - url: https://developers.blend.com/blend/reference type: APIReference - url: openapi/blend-mortgage-openapi.yml type: OpenAPI - url: collections/blend-mortgage.postman_collection.json type: PostmanCollection - url: collections/blend-mortgage.opencollection.json type: OpenCollection description: Create, list, update, and remove lender users, and assign lender users (primary assignee and assignees) to applications so the right loan officers and processors own each loan. - aid: blend-mortgage:blend-mortgage-reporting-api name: Blend Reporting API tags: - Reporting - Analytics - Metrics image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg humanURL: https://developers.blend.com/blend/reference baseURL: https://api.blendlabs.com properties: - url: https://developers.blend.com/blend/reference type: APIReference - url: openapi/blend-mortgage-openapi.yml type: OpenAPI - url: collections/blend-mortgage.postman_collection.json type: PostmanCollection - url: collections/blend-mortgage.opencollection.json type: OpenCollection description: Pull reporting datasets across the platform - loans, borrowers, lender users and metrics, borrower workflows/activities, follow-ups, document metadata, connectivity metrics, and NPS. common: - type: DomainSecurity url: security/blend-mortgage-domain-security.yml - type: Authentication url: authentication/blend-mortgage-authentication.yml - type: LinkedIn url: https://www.linkedin.com/company/blendlabs-inc- - type: Website url: https://blend.com - type: Documentation url: https://developers.blend.com/blend - type: APIReference url: https://developers.blend.com/blend/reference - type: SignUp url: https://developers.blend.com/blend/docs/blend-api-quick-start-guide - type: Blog url: https://blend.com/blog - type: Plans url: plans/blend-mortgage-plans-pricing.yml - type: RateLimits url: rate-limits/blend-mortgage-rate-limits.yml - type: FinOps url: finops/blend-mortgage-finops.yml maintainers: - FN: Kin Lane email: kin@apievangelist.com