Middesk

aid: middesk
name: Middesk
description: Middesk is a business identity and verification platform providing a REST API for KYB (Know Your Business) compliance,
  EIN/TIN validation, business registration verification, UBO research, sanctions screening, and ongoing business monitoring.
  Used by fintechs, lenders, and banks to automate onboarding and compliance workflows.
type: Index
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
url: https://raw.githubusercontent.com/api-evangelist/middesk/refs/heads/main/apis.yml
created: 2026-06-13
modified: 2026-06-13
specificationVersion: '0.19'
tags:
- Business Verification
- KYB
- Know Your Business
- Identity Verification
- Compliance
- EIN Validation
- TIN Verification
- Sanctions Screening
- Business Monitoring
- Fintech
- RegTech
apis:
- name: Middesk Business Verification API
  description: REST API for verifying business identities, including Secretary of State registrations, EIN/TIN validation,
    UBO and officer research, sanctions and adverse media screening, and real-time business monitoring. Supports both sandbox
    and production environments.
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.middesk.com/reference/introduction
  baseURL: https://api.middesk.com/v1/
  tags:
  - Business Verification
  - KYB
  - Identity Verification
  - Compliance
  properties:
  - type: Documentation
    url: https://docs.middesk.com/docs
  - type: OpenAPI
    url: https://docs.middesk.com/openapi.json
  - type: PostmanCollection
    url: https://github.com/middesk/middesk-postman
  - type: Sandbox
    url: https://api-sandbox.middesk.com/v1/
  contact:
  - FN: Middesk Support
    url: https://docs.middesk.com
    email: support@middesk.com
common:
- type: Website
  url: https://www.middesk.com
- type: Documentation
  url: https://docs.middesk.com
- type: GitHubOrg
  url: https://github.com/middesk
- type: LinkedIn
  url: https://www.linkedin.com/company/middesk
- type: Blog
  url: https://www.middesk.com/blog
- type: Pricing
  url: https://www.middesk.com/pricing/business-onboarding
- type: StatusPage
  url: https://status.middesk.com
- type: X
  url: https://x.com/middeskhq
- type: Plans
  url: plans/middesk-plans-pricing.yml
- type: RateLimits
  url: rate-limits/middesk-rate-limits.yml
- type: FinOps
  url: finops/middesk-finops.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com