LendKey

LendKey Technologies is a New York based digital lending platform that lets credit unions and community banks originate, fund and service consumer loans without building the technology themselves. Its network-lending model covers private student loans, student loan refinancing, home improvement lending and auto lending, and its ALIRO platform runs loan participations and post-origination liquidity between institutions. LendKey has surpassed $8 billion in loan originations. For integrators it operates a Kong Gateway fronted API estate published through a Kong Developer Portal at developer.lendkey.com, covering origination intake (leads, soft credit pull, credit attributes, scoring and application boarding), treasury management (loan inventory, disbursements, payments and capital ledger), and DocuSign backed e-signature contracts. Access is partner gated, with OAuth2 client-credentials credentials issued through the developer portal.

LendKey publishes 15 API contracts indexed on the APIs.io network, including Application Contracts API, Applications API, Auth API, and 12 more. Tagged areas include Company, Fintech, Lending, Loans, and Student Loans.

The LendKey catalog on APIs.io includes 1 event-driven AsyncAPI specification.

LendKey’s developer surface includes documentation, API reference, signup flow, support, engineering blog, authentication, sandbox, and 19 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

43.4/100 developing ▬ flat Agent 35/100 agent ready Front door AI 1/6 silent saas Full breakdown ↓
scored 2026-10-31 · rubric v0.25.0 · Show this score on your site →

AccessSelf serve

4 published contracts 3 Agent Skills

Company Fintech Lending Loans Student Loans Credit Union Banking Loan Origination Financial Services Payments E-Signature Treasury

What this lets a business do 2

Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →

Credit & Lending Management

BC-1320

Application ContractsCredit RiskPaymentsapplicationsonboarding

POST /v1/credit/soft_pull POST /v1/credit/combined_monthly_debt POST /v1/scoring/score POST /v1/onboarding/onboard

Sales Management

BC-410

Leads

POST /v1/leads/create

Kin Score

Kin Score How this is scored →
scored 2026-10-31 · rubric v0.25.0

Composite quality — 43.4/100 · developing

Contract Quality 11.8 / 21

Developer Ergonomics 9.2 / 17

Access Clarity 5.8 / 17

Operational Transparency 0.6 / 11

Contract Governance 0.5 / 10

Discoverability 6.1 / 9

Regulatory Posture 6.6 / 15

Agent readiness — 35/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 6 / 6

Agent Skills 5 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 0 / 5

Distinct Operations 3 / 3

Regulatory Posture applies to this provider. Its tags matched the Banking & Open Finance regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented)

8 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Access Clarity scores 34.2 — up to +13.2 composite points
Operational Transparency scores 5.3 — up to +12.3 composite points
Contract Governance scores 4.5 — up to +11.5 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/lendkey/apis.yml: open an issue on github.com/api-evangelist/lendkey to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
Consumer Lending Licensing (UK, US, Canada credit licence registers)	undeclared	-	-	-

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

APIs 15

Individual APIs this provider publishes, each with its own machine-readable definition.

LendKey Application Contracts API

Endpoints for creating and managing loan application contracts

LendKey Applications API

The applications API from LendKey — 1 operation(s) for applications.

LendKey Auth API

The auth API from LendKey — 1 operation(s) for auth.

LendKey Authentication API

OAuth2 authentication endpoints

LendKey Credit Risk API

The Credit Risk API from LendKey — 4 operation(s) for credit risk.

LendKey Disbursements API

Disbursement processing and cancellation

LendKey Email API

The email API from LendKey — 2 operation(s) for email.

LendKey Internal API

Internal API operations for request logging

LendKey Leads API

The leads API from LendKey — 1 operation(s) for leads.

LendKey Ledger Management API

Capital ledger operations

LendKey Lender Templates API

Manage DocuSign template assignments for lenders

LendKey Loans API

Loan creation and management

LendKey Onboarding API

The onboarding API from LendKey — 1 operation(s) for onboarding.

LendKey Payments API

Payment and remittance processing

LendKey Webhooks API

Endpoints for receiving DocuSign webhook notifications

Scroll for all 15

Open Collections 15

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

LendKey E-Sign API (via Kong Gateway) Application Contracts API

OPEN COLLECTION

LendKey E-Sign API (via Kong Gateway) Application Contracts applications API

OPEN COLLECTION

LendKey E-Sign API (via Kong Gateway) Application Contracts auth API

OPEN COLLECTION

LendKey E-Sign API (via Kong Gateway) Application Contracts Authentication API

OPEN COLLECTION

LendKey E-Sign API (via Kong Gateway) Application Contracts Credit Risk API

OPEN COLLECTION

LendKey E-Sign API (via Kong Gateway) Application Contracts Disbursements API

OPEN COLLECTION

LendKey E-Sign API (via Kong Gateway) Application Contracts email API

OPEN COLLECTION

LendKey E-Sign API (via Kong Gateway) Application Contracts internal API

OPEN COLLECTION

LendKey E-Sign API (via Kong Gateway) Application Contracts leads API

OPEN COLLECTION

LendKey E-Sign API (via Kong Gateway) Application Contracts Ledger Management API

OPEN COLLECTION

LendKey E-Sign API (via Kong Gateway) Application Contracts Lender Templates API

OPEN COLLECTION

LendKey E-Sign API (via Kong Gateway) Application Contracts Loans API

OPEN COLLECTION

LendKey E-Sign API (via Kong Gateway) Application Contracts onboarding API

OPEN COLLECTION

LendKey E-Sign API (via Kong Gateway) Application Contracts Payments API

OPEN COLLECTION

LendKey E-Sign API (via Kong Gateway) Application Contracts Webhooks API

OPEN COLLECTION

Scroll for all 15

Agent Skills 3

Packaged agent skills for driving this provider's APIs from an AI assistant.

LendKey E-Sign contract flow

AGENT SKILL

LendKey origination intake — lead, credit, score, board

AGENT SKILL

LendKey Treasury loan ledger operations

AGENT SKILL

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Lendkey Webhooks

ASYNCAPI

OpenAPI Overlays 4

Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.

Lendkey Esign Overlay

2 actions · update · lendkey-esign-openapi.yml

DERIVED

Lendkey Integration Overlay

2 actions · update · lendkey-integration-openapi.yml

DERIVED

Lendkey Partner Integration Internal Overlay

2 actions · update · lendkey-partner-integration-internal-openapi.yml

DERIVED

Lendkey Treasury Management Overlay

2 actions · update · lendkey-treasury-management-openapi.yml

DERIVED

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Lendkey Authentication

oauth2 · 1 scheme

SECURITY

Lendkey Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Lendkey Scopes

OAuth 2.0 · no documented scopes

0 scopes

SCOPES

Resources

Get Started 4

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

SignUp

SignUp

Login

Sandbox

Sandbox

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

X-MCPServerCandidate

X-MCPServerCandidate

AgentSkill

AgentSkill

LLMsTxt

LLMsTxt

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Conventions

ErrorCatalog

Lifecycle

Conformance

DataModel

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 3

Authentication, authorization, and security posture

Authentication

Authentication

OAuthScopes

OAuthScopes

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 3

The organization behind the API

BlogRSS

BlogRSS

Website

Website

Blog

Blog

Other 2

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

Overlay

Overlay

Source (apis.yml)

aid: lendkey
name: LendKey
description: LendKey Technologies is a New York based digital lending platform that lets credit unions and community banks
  originate, fund and service consumer loans without building the technology themselves. Its network-lending model covers
  private student loans, student loan refinancing, home improvement lending and auto lending, and its ALIRO platform runs
  loan participations and post-origination liquidity between institutions. LendKey has surpassed $8 billion in loan originations.
  For integrators it operates a Kong Gateway fronted API estate published through a Kong Developer Portal at developer.lendkey.com,
  covering origination intake (leads, soft credit pull, credit attributes, scoring and application boarding), treasury management
  (loan inventory, disbursements, payments and capital ledger), and DocuSign backed e-signature contracts. Access is partner
  gated, with OAuth2 client-credentials credentials issued through the developer portal.
url: https://raw.githubusercontent.com/api-evangelist/lendkey/refs/heads/main/apis.yml
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://www.lendkey.com/wp-content/uploads/2018/08/cropped-LK512.png
x-type: company
x-source: vc-portfolio
x-backed-by:
- threshold-ventures
x-tier: enriched
x-tier-reason: four-published-openapi-specs
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-10-06'
tags:
- Company
- Fintech
- Lending
- Loans
- Student Loans
- Credit Union
- Banking
- Loan Origination
- Financial Services
- Payments
- E-Signature
- Treasury
tags_raw:
- Company
- Fintech
- Lending
- Loans
- Student Loans
- Credit Unions
- Banking
- Loan Origination
- Financial Services
- Payments
- E-Signature
- Treasury
- Financial-Services
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
apis:
- aid: lendkey:lendkey-application-contracts-api
  name: LendKey Application Contracts API
  description: Endpoints for creating and managing loan application contracts
  humanURL: https://developer.lendkey.com/default/documentation/integration-api
  baseURL: https://api.lendkey.com/esign
  tags:
  - Application Contracts
  properties:
  - type: OpenAPI
    url: openapi/lendkey-application-contracts-api-openapi.yml
  - type: Documentation
    url: https://developer.lendkey.com/default/documentation/integration-api
  - type: Documentation
    url: https://developer.lendkey.com/default/documentation/os-treasury-management-prod
  - type: Documentation
    url: https://developer.lendkey.com/default/documentation/esign-kotlin-prod
  - type: Documentation
    url: https://developer.lendkey.com/default/documentation/loan-origination-partner-integration-prod
- aid: lendkey:lendkey-applications-api
  name: LendKey Applications API
  description: The applications API from LendKey — 1 operation(s) for applications.
  humanURL: https://developer.lendkey.com/default/documentation/integration-api
  baseURL: https://proxy.kong.lkeyprod.com/integration/
  tags:
  - Application
  tags_raw:
  - applications
  properties:
  - type: OpenAPI
    url: openapi/lendkey-applications-api-openapi.yml
  - type: Documentation
    url: https://developer.lendkey.com/default/documentation/integration-api
  - type: Documentation
    url: https://developer.lendkey.com/default/documentation/os-treasury-management-prod
  - type: Documentation
    url: https://developer.lendkey.com/default/documentation/esign-kotlin-prod
  - type: Documentation
    url: https://developer.lendkey.com/default/documentation/loan-origination-partner-integration-prod
- aid: lendkey:lendkey-auth-api
  name: LendKey Auth API
  description: The auth API from LendKey — 1 operation(s) for auth.
  humanURL: https://developer.lendkey.com/default/documentation/integration-api
  baseURL: https://proxy.kong.lkeyprod.com/integration/
  tags:
  - Authentication
  tags_raw:
  - auth
  properties:
  - type: OpenAPI
    url: openapi/lendkey-auth-api-openapi.yml
  - type: Documentation
    url: https://developer.lendkey.com/default/documentation/integration-api
  - type: Documentation
    url: https://developer.lendkey.com/default/documentation/os-treasury-management-prod
  - type: Documentation
    url: https://developer.lendkey.com/default/documentation/esign-kotlin-prod
  - type: Documentation
    url: https://developer.lendkey.com/default/documentation/loan-origination-partner-integration-prod
- aid: lendkey:lendkey-authentication-api
  name: LendKey Authentication API
  description: OAuth2 authentication endpoints
  humanURL: https://developer.lendkey.com/default/documentation/integration-api
  baseURL: https://api.lendkey.com/esign
  tags:
  - Authentication
  properties:
  - type: OpenAPI
    url: openapi/lendkey-authentication-api-openapi.yml
  - type: Documentation
    url: https://developer.lendkey.com/default/documentation/integration-api
  - type: Documentation
    url: https://developer.lendkey.com/default/documentation/os-treasury-management-prod
  - type: Documentation
    url: https://developer.lendkey.com/default/documentation/esign-kotlin-prod
  - type: Documentation
    url: https://developer.lendkey.com/default/documentation/loan-origination-partner-integration-prod
- aid: lendkey:lendkey-credit-risk-api
  name: LendKey Credit Risk API
  description: The Credit Risk API from LendKey — 4 operation(s) for credit risk.
  humanURL: https://developer.lendkey.com/default/documentation/integration-api
  baseURL: https://proxy.kong.lkeyprod.com/integration/
  tags:
  - Credit Risk
  properties:
  - type: OpenAPI
    url: openapi/lendkey-credit-risk-api-openapi.yml
  - type: Documentation
    url: https://developer.lendkey.com/default/documentation/integration-api
  - type: Documentation
    url: https://developer.lendkey.com/default/documentation/os-treasury-management-prod
  - type: Documentation
    url: https://developer.lendkey.com/default/documentation/esign-kotlin-prod
  - type: Documentation
    url: https://developer.lendkey.com/default/documentation/loan-origination-partner-integration-prod
- aid: lendkey:lendkey-disbursements-api
  name: LendKey Disbursements API
  description: Disbursement processing and cancellation
  humanURL: https://developer.lendkey.com/default/documentation/integration-api
  baseURL: https://api.lendkey.com/TreasuryMgmt
  tags:
  - Disbursements
  properties:
  - type: OpenAPI
    url: openapi/lendkey-disbursements-api-openapi.yml
  - type: Documentation
    url: https://developer.lendkey.com/default/documentation/integration-api
  - type: Documentation
    url: https://developer.lendkey.com/default/documentation/os-treasury-management-prod
  - type: Documentation
    url: https://developer.lendkey.com/default/documentation/esign-kotlin-prod
  - type: Documentation
    url: https://developer.lendkey.com/default/documentation/loan-origination-partner-integration-prod
- aid: lendkey:lendkey-email-api
  name: LendKey Email API
  description: The email API from LendKey — 2 operation(s) for email.
  humanURL: https://developer.lendkey.com/default/documentation/integration-api
  baseURL: https://proxy.kong.lkeyprod.com/integration/
  tags:
  - Email
  tags_raw:
  - email
  properties:
  - type: OpenAPI
    url: openapi/lendkey-email-api-openapi.yml
  - type: Documentation
    url: https://developer.lendkey.com/default/documentation/integration-api
  - type: Documentation
    url: https://developer.lendkey.com/default/documentation/os-treasury-management-prod
  - type: Documentation
    url: https://developer.lendkey.com/default/documentation/esign-kotlin-prod
  - type: Documentation
    url: https://developer.lendkey.com/default/documentation/loan-origination-partner-integration-prod
- aid: lendkey:lendkey-internal-api
  name: LendKey Internal API
  description: Internal API operations for request logging
  humanURL: https://developer.lendkey.com/default/documentation/integration-api
  baseURL: https://api.lendkey.com/lo_partnerintegrationinternalapi
  tags:
  - Internal
  tags_raw:
  - internal
  properties:
  - type: OpenAPI
    url: openapi/lendkey-internal-api-openapi.yml
  - type: Documentation
    url: https://developer.lendkey.com/default/documentation/integration-api
  - type: Documentation
    url: https://developer.lendkey.com/default/documentation/os-treasury-management-prod
  - type: Documentation
    url: https://developer.lendkey.com/default/documentation/esign-kotlin-prod
  - type: Documentation
    url: https://developer.lendkey.com/default/documentation/loan-origination-partner-integration-prod
- aid: lendkey:lendkey-leads-api
  name: LendKey Leads API
  description: The leads API from LendKey — 1 operation(s) for leads.
  humanURL: https://developer.lendkey.com/default/documentation/integration-api
  baseURL: https://proxy.kong.lkeyprod.com/integration/
  tags:
  - Leads
  tags_raw:
  - leads
  properties:
  - type: OpenAPI
    url: openapi/lendkey-leads-api-openapi.yml
  - type: Documentation
    url: https://developer.lendkey.com/default/documentation/integration-api
  - type: Documentation
    url: https://developer.lendkey.com/default/documentation/os-treasury-management-prod
  - type: Documentation
    url: https://developer.lendkey.com/default/documentation/esign-kotlin-prod
  - type: Documentation
    url: https://developer.lendkey.com/default/documentation/loan-origination-partner-integration-prod
- aid: lendkey:lendkey-ledger-management-api
  name: LendKey Ledger Management API
  description: Capital ledger operations
  humanURL: https://developer.lendkey.com/default/documentation/integration-api
  baseURL: https://api.lendkey.com/TreasuryMgmt
  tags:
  - Ledger Management
  properties:
  - type: OpenAPI
    url: openapi/lendkey-ledger-management-api-openapi.yml
  - type: Documentation
    url: https://developer.lendkey.com/default/documentation/integration-api
  - type: Documentation
    url: https://developer.lendkey.com/default/documentation/os-treasury-management-prod
  - type: Documentation
    url: https://developer.lendkey.com/default/documentation/esign-kotlin-prod
  - type: Documentation
    url: https://developer.lendkey.com/default/documentation/loan-origination-partner-integration-prod
- aid: lendkey:lendkey-lender-templates-api
  name: LendKey Lender Templates API
  description: Manage DocuSign template assignments for lenders
  humanURL: https://developer.lendkey.com/default/documentation/integration-api
  baseURL: https://api.lendkey.com/esign
  tags:
  - Lender Templates
  properties:
  - type: OpenAPI
    url: openapi/lendkey-lender-templates-api-openapi.yml
  - type: Documentation
    url: https://developer.lendkey.com/default/documentation/integration-api
  - type: Documentation
    url: https://developer.lendkey.com/default/documentation/os-treasury-management-prod
  - type: Documentation
    url: https://developer.lendkey.com/default/documentation/esign-kotlin-prod
  - type: Documentation
    url: https://developer.lendkey.com/default/documentation/loan-origination-partner-integration-prod
- aid: lendkey:lendkey-loans-api
  name: LendKey Loans API
  description: Loan creation and management
  humanURL: https://developer.lendkey.com/default/documentation/integration-api
  baseURL: https://api.lendkey.com/TreasuryMgmt
  tags:
  - Loans
  properties:
  - type: OpenAPI
    url: openapi/lendkey-loans-api-openapi.yml
  - type: Documentation
    url: https://developer.lendkey.com/default/documentation/integration-api
  - type: Documentation
    url: https://developer.lendkey.com/default/documentation/os-treasury-management-prod
  - type: Documentation
    url: https://developer.lendkey.com/default/documentation/esign-kotlin-prod
  - type: Documentation
    url: https://developer.lendkey.com/default/documentation/loan-origination-partner-integration-prod
- aid: lendkey:lendkey-onboarding-api
  name: LendKey Onboarding API
  description: The onboarding API from LendKey — 1 operation(s) for onboarding.
  humanURL: https://developer.lendkey.com/default/documentation/integration-api
  baseURL: https://proxy.kong.lkeyprod.com/integration/
  tags:
  - Onboarding
  tags_raw:
  - onboarding
  properties:
  - type: OpenAPI
    url: openapi/lendkey-onboarding-api-openapi.yml
  - type: Documentation
    url: https://developer.lendkey.com/default/documentation/integration-api
  - type: Documentation
    url: https://developer.lendkey.com/default/documentation/os-treasury-management-prod
  - type: Documentation
    url: https://developer.lendkey.com/default/documentation/esign-kotlin-prod
  - type: Documentation
    url: https://developer.lendkey.com/default/documentation/loan-origination-partner-integration-prod
- aid: lendkey:lendkey-payments-api
  name: LendKey Payments API
  description: Payment and remittance processing
  humanURL: https://developer.lendkey.com/default/documentation/integration-api
  baseURL: https://api.lendkey.com/TreasuryMgmt
  tags:
  - Payments
  properties:
  - type: OpenAPI
    url: openapi/lendkey-payments-api-openapi.yml
  - type: Documentation
    url: https://developer.lendkey.com/default/documentation/integration-api
  - type: Documentation
    url: https://developer.lendkey.com/default/documentation/os-treasury-management-prod
  - type: Documentation
    url: https://developer.lendkey.com/default/documentation/esign-kotlin-prod
  - type: Documentation
    url: https://developer.lendkey.com/default/documentation/loan-origination-partner-integration-prod
- aid: lendkey:lendkey-webhooks-api
  name: LendKey Webhooks API
  description: Endpoints for receiving DocuSign webhook notifications
  humanURL: https://developer.lendkey.com/default/documentation/integration-api
  baseURL: https://api.lendkey.com/esign
  tags:
  - Webhook
  tags_raw:
  - Webhooks
  properties:
  - type: OpenAPI
    url: openapi/lendkey-webhooks-api-openapi.yml
  - type: Documentation
    url: https://developer.lendkey.com/default/documentation/integration-api
  - type: Documentation
    url: https://developer.lendkey.com/default/documentation/os-treasury-management-prod
  - type: Documentation
    url: https://developer.lendkey.com/default/documentation/esign-kotlin-prod
  - type: Documentation
    url: https://developer.lendkey.com/default/documentation/loan-origination-partner-integration-prod
common:
- url: https://www.lendkey.com/blog/feed/
  type: BlogRSS
- type: CapabilityMap
  url: capabilities/lendkey-capability-edges.yml
  name: LendKey Business Capability Map
- type: Overlay
  url: overlays/lendkey-esign-overlay.yaml
- type: Website
  url: https://www.lendkey.com/
- type: DeveloperPortal
  url: https://developer.lendkey.com/default/
- type: Documentation
  url: https://developer.lendkey.com/default/documentation
- type: APIReference
  url: https://developer.lendkey.com/default/documentation/integration-api
- type: SignUp
  url: https://developer.lendkey.com/default/register
- type: Login
  url: https://developer.lendkey.com/default/login
- type: Support
  url: https://www.lendkey.com/contact-us/
- type: Blog
  url: https://www.lendkey.com/blog/
- type: GitHubOrganization
  url: https://github.com/lendkey
- type: TermsOfService
  url: https://www.lendkey.com/terms-of-use/
- type: PrivacyPolicy
  url: https://www.lendkey.com/privacy-policy/
- type: Authentication
  url: authentication/lendkey-authentication.yml
- type: OAuthScopes
  url: scopes/lendkey-scopes.yml
- type: DomainSecurity
  url: security/lendkey-domain-security.yml
- type: Conventions
  url: conventions/lendkey-conventions.yml
- type: ErrorCatalog
  url: errors/lendkey-problem-types.yml
- type: Lifecycle
  url: lifecycle/lendkey-lifecycle.yml
- type: Conformance
  url: conformance/lendkey-conformance.yml
- type: DataModel
  url: data-model/lendkey-data-model.yml
- type: Sandbox
  url: sandbox/lendkey-sandbox.yml
- type: X-MCPServerCandidate
  url: mcp/lendkey-mcp.yml
  note: 'Renamed from MCPServer 2026-09-03 (roadmap#247): the manifest self-describes as status: candidate — a tool list derived
    from the published API contracts, not an existing server. The scorer already read the manifest and reported mcp_server
    correctly; the MCPServer type was crediting the artifact-type surfaces with a server that does not exist.'
- type: AgentSkill
  url: skills/_index.yml
- type: LLMsTxt
  url: llms/lendkey-llms.txt
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

LendKey API — frequently asked questions

Does LendKey have an API?

Yes. APIs.io lists 15 APIs from LendKey, including LendKey Application Contracts API, LendKey Applications API and LendKey Auth API, and 12 more.

Is there an OpenAPI specification for the LendKey API?

Yes. APIs.io indexes 15 OpenAPI specifications for LendKey, each linked for download from this page.

How do I authenticate with the LendKey API?

LendKey documents its authentication (oauth2 · 1 scheme). The details are profiled on APIs.io as Lendkey Authentication.

Is the LendKey API ready for AI agents?

LendKey has a Kin Score of 43.4 out of 100 (developing) and an Agent Readiness score of 34.5 (agent-ready), scored by API Evangelist on 2026-10-31.

Work with this as data

Every provider here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for providers

9 MCP tools reach this

find_providersBrowse and filter every provider in the catalog.
get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

All 92 tools →

Call it yourself

curl for this page

This provider

curl "https://apis.io/api/v1/providers/lendkey"

All providers

curl "https://apis.io/api/v1/providers?limit=25"

Every operation they expose

curl "https://apis.io/api/v1/providers/lendkey/operations?limit=25"

How their score was established

curl "https://apis.io/api/v1/providers/lendkey/evidence"

Discovery needs no key. Ratings and market analysis are Pro.

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