# Middesk

**Canonical:** https://apis.io/providers/middesk/  
**Website:** https://www.middesk.com  
**APIs profiled:** 28

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.

## Kin Score — 41.0 / 100 (developing)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 41.0).

| Facet | Score |
|---|---|
| Discoverability | 74.1 |
| Contract Quality | 59.7 |
| Governance | 9.8 |
| Contract Governance | 9.8 |
| Operational Transparency | 21.1 |
| Developer Ergonomics | 23.8 |
| Commercial Clarity | 50.0 |
| Access Clarity | 50.0 |

## Agent readiness — 35.9 (agent-ready)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | yes |
| Idempotency | no |
| Error Semantics | verified |
| OpenAPI Examples | no |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Paid · Self-serve signup — onboarding: self-serve, pricing: paid, trial: no (confidence: high).

## APIs (28)

- **Middesk subpackage_actions API** — The subpackage_actions API from Middesk — 2 operation(s) for subpackage_actions.
- **Middesk subpackage_agents API** — The subpackage_agents API from Middesk — 2 operation(s) for subpackage_agents.
- **Middesk subpackage_applications API** — The subpackage_applications API from Middesk — 1 operation(s) for subpackage_applications.
- **Middesk subpackage_businessBatches API** — The subpackage_businessBatches API from Middesk — 3 operation(s) for subpackage_businessbatches.
- **Middesk subpackage_businesses API** — The subpackage_businesses API from Middesk — 3 operation(s) for subpackage_businesses.
- **Middesk subpackage_companies API** — The subpackage_companies API from Middesk — 1 operation(s) for subpackage_companies.
- **Middesk subpackage_connections API** — The subpackage_connections API from Middesk — 1 operation(s) for subpackage_connections.
- **Middesk subpackage_documents API** — The subpackage_documents API from Middesk — 3 operation(s) for subpackage_documents.
- **Middesk subpackage_identities API** — The subpackage_identities API from Middesk — 1 operation(s) for subpackage_identities.
- **Middesk subpackage_informationRequests API** — The subpackage_informationRequests API from Middesk — 1 operation(s) for subpackage_informationrequests.
- **Middesk subpackage_jurisdictions API** — The subpackage_jurisdictions API from Middesk — 2 operation(s) for subpackage_jurisdictions.
- **Middesk subpackage_liens API** — The subpackage_liens API from Middesk — 2 operation(s) for subpackage_liens.
- **Middesk subpackage_lienTerminations API** — The subpackage_lienTerminations API from Middesk — 1 operation(s) for subpackage_lienterminations.
- **Middesk subpackage_mail API** — The subpackage_mail API from Middesk — 2 operation(s) for subpackage_mail.
- **Middesk subpackage_monitoring API** — The subpackage_monitoring API from Middesk — 2 operation(s) for subpackage_monitoring.
- **Middesk subpackage_orders API** — The subpackage_orders API from Middesk — 3 operation(s) for subpackage_orders.
- **Middesk subpackage_policyResults API** — The subpackage_policyResults API from Middesk — 1 operation(s) for subpackage_policyresults.
- **Middesk subpackage_prefill API** — The subpackage_prefill API from Middesk — 1 operation(s) for subpackage_prefill.
- **Middesk subpackage_questions API** — The subpackage_questions API from Middesk — 1 operation(s) for subpackage_questions.
- **Middesk subpackage_registrationRequests API** — The subpackage_registrationRequests API from Middesk — 3 operation(s) for subpackage_registrationrequests.
- **Middesk subpackage_reviews API** — The subpackage_reviews API from Middesk — 1 operation(s) for subpackage_reviews.
- **Middesk subpackage_runs API** — The subpackage_runs API from Middesk — 4 operation(s) for subpackage_runs.
- **Middesk subpackage_signals API** — The subpackage_signals API from Middesk — 2 operation(s) for subpackage_signals.
- **Middesk subpackage_threads API** — The subpackage_threads API from Middesk — 2 operation(s) for subpackage_threads.
- **Middesk subpackage_timeline API** — The subpackage_timeline API from Middesk — 1 operation(s) for subpackage_timeline.
- **Middesk subpackage_tinMatch API** — The subpackage_tinMatch API from Middesk — 1 operation(s) for subpackage_tinmatch.
- **Middesk subpackage_webhooks API** — The subpackage_webhooks API from Middesk — 3 operation(s) for subpackage_webhooks.
- **Middesk subpackage_websites API** — The subpackage_websites API from Middesk — 1 operation(s) for subpackage_websites.

## Agentic access (1)

- **Middesk Agentic Access** — 70 operations · 27 acting · 1 human-in-the-loop

## Security (2)

- **Middesk Authentication** — http · 1 scheme
- **Middesk Domain Security** — TLSv1.3 · HSTS · DNSSEC · DMARC

## Plans (1)

- **Middesk Plans Pricing**

## Tags

Business Verification, KYB, Know Your Business, Identity Verification, Compliance, EIN Validation, TIN Verification, Sanctions Screening, Business Monitoring, Fintech, RegTech

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/middesk/). Scores are computed from the provider's own public artifacts under a published rubric.