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Blend

Blend Borrowers & Parties API

Borrowers, coborrowers, realtors, employers, incomes, and positions.

Documentation Provider Profile APIs.io OpenAPI GitHub

Blend Borrowers & Parties API is one of 10 APIs that Blend publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Borrowers & Parties. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, and an API reference.

This API exposes 6 operations across 3 paths, and defines 2 schemas. It is described by OpenAPI 3.0.3, at version 12.0.0.

Requests are made against 2 base URLs: https://api.blendlabs.com, https://api.beta.blendlabs.com.

6 operations 3 paths 2 schemas 1 DELETE2 GET1 PATCH1 POST1 PUT

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.0.3
API Version
12.0.0
Base URL
https://api.blendlabs.com
Authentication
HTTP Bearer
Contact
Blend Labs
Terms of Service
View terms
Resource Areas
1

Authentication & Security 1

Blend Borrowers & Parties API declares 1 security scheme for authenticating requests. It accepts HTTP bearer tokens (JWT) (bearerAuth). By default, every request must be authenticated.

  • bearerAuth — 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…

Paths & Operations 6

Across 3 paths, the API surfaces 6 operations — 1 DELETE, 2 GET, 1 PATCH, 1 POST, 1 PUT. Each is listed below with its method, path, parameters, and response codes.

Borrowers & Parties 6

Borrowers, coborrowers, realtors, employers, incomes, and positions.

GET
/applications/{id}/parties
List parties for an application
listParties 1 param → 200
POST
/applications/{id}/parties
Add a party (coborrower, etc.) to an application
createParty 1 param body → 201
PATCH
/applications/{id}/parties/{partyId}
Update a party
patchParty 2 params body → 200
DELETE
/applications/{id}/parties/{partyId}
Remove a party
deleteParty 2 params → 204
GET
/applications/{id}/borrower-positions
Get borrower positions
getBorrowerPositions 1 param → 200
PUT
/applications/{id}/borrower-positions
Set borrower positions
putBorrowerPositions 1 param body → 200

Schemas 2

The contract defines 2 schemas that model the data the API accepts and returns. The most detailed are Party (4 properties), PartyInput (3 properties). Each schema is shown below with its type and property counts.

Party
object
4 properties
PartyInput
object
3 properties

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

blend-mortgage-borrowers-parties-api-openapi.yml Raw ↑

Other APIs Blend publishes across the network.

Blend Closings & eSignature API
AE Profile APIs.io
Blend Consumer Lending & Deposit API
AE Profile APIs.io
Blend Documents & Disclosures API
AE Profile APIs.io
Blend Events & Webhooks API
AE Profile APIs.io
Blend Follow-ups API
AE Profile APIs.io
Blend Home Lending Applications API
AE Profile APIs.io
Blend Lenders & Assignments API
AE Profile APIs.io
Blend Products & Pricing API
AE Profile APIs.io
Blend Reporting API
AE Profile APIs.io
#Borrowers & Parties
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API Details
ID
blend-mortgage:blend-mortgage-borrowers-parties-api
Base URL
https://api.blendlabs.com
Docs
https://developers.blend.com/blend/docs/create-a-new-home-loan
Provider
Blend
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This is an independent, third-party profile of Blend Borrowers & Parties API, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

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