Compare

Middesk vs OpenCorporates

Middesk is a KYB platform. It verifies a business across all 50 states and D.C., adds TIN and watchlist checks, and monitors it after onboarding. Its pricing is not published.[1][2][3][4] OpenCorporates is company data from 140+ registries worldwide, by API or bulk, from £225 a month for 500 calls.[5][6] Pick Middesk for verification decisions on U.S. customers. Pick OpenCorporates for raw company data across countries.

Vendor facts from each vendor's own public pages, read 2026-10-16. Sources are listed below.

Middesk vs OpenCorporates, side by side
MiddeskOpenCorporatesRecordwire
ModelKYB verification platform with ongoing monitoring: dashboard, REST API, and MCP server.[7]Company lookup API and bulk files by SFTP, over 140+ registries worldwide.[5][6]Change feed plus lookup. Each new state file is compared with the last, and every difference is stored as a dated event. REST API, MCP server, and webhooks.[8]
U.S. state coverageSearches all 50 states and D.C. for every business it verifies.[1]All 50 states and D.C., listed on its registers page; Texas comes from the Comptroller.[9]12 states. Florida, New York, Colorado, Pennsylvania, Virginia, Connecticut, and Oregon from official bulk files and open data. Massachusetts, Idaho, Wyoming, and Missouri from the state's public search, new formations only. Delaware from a licensed data partner, new formations only.[10]
FreshnessSearched when you order a verification. Without monitoring, the timeline is current as of the last order.[1][11]Sources are collected hourly to quarterly depending on type; all sources are checked every four days.[12]As often as each state publishes: daily in Florida, New York, Colorado, and Oregon, monthly in Pennsylvania, weekly in Virginia, nightly in Connecticut, every 3 hours in Massachusetts and Missouri, every 6 hours in Idaho, continuously in Wyoming, and several times a day in Delaware.[10]
Change events and historyYes, per verified business: a timeline of status, address, name, and officer changes, plus watchlist, lien, bankruptcy, and TIN events.[11][3]No change feed published. Lookups return statutory filings, previous names, and officer start and end dates.[13]Six event types: formed, renamed, status, address, registered agent, officers. Full change events in the seven file states; new formations only in the other five. Virginia and Florida include state-published history.[14][10]
WebhooksYes, plus email notifications for monitoring events.[15][3]None published.[13][6]Yes. Signed webhooks per subscription, filtered by state, event type, or up to 10,000 company IDs.[8]
MCP serverYes, official, over HTTP and SSE with OAuth or an API key; access through sales.[16]None published by OpenCorporates.[13][5]Yes. Remote server at api.recordwirehq.com/mcp: five read tools and three for webhook subscriptions, one bearer key.[17]
OfficersYes, and registered agents.[18]Yes, with registered agents as an officer position.[13]Where the state publishes them: Florida, Pennsylvania, Connecticut, Massachusetts, Wyoming; partly in New York, Virginia, Oregon. None in Colorado, Idaho, Missouri.[10]
Published pricingNot published; sold through a contact form.[4]£225 a month for 500 calls, £660 for 2,500, £1,200 for 5,000; bulk by quote. Free for qualifying open data projects.[6][13]$100 a month for one state, $200 for any three, $500 for all. No free trial.[19]

Who Middesk fits

You onboard U.S. businesses and want verification done for you, with TIN matching, sanctions screening, liens, monitoring alerts, and an MCP server. Middesk says 70% of its verifications resolve without an analyst.[2][3][16]

Who OpenCorporates fits

You need companies outside the U.S., want published prices, or build on open data. Lookups return filings, previous names, and officers with start and end dates. It is free for qualifying open data projects.[5][6][13]

Where Recordwire fits

Middesk tracks only the businesses you verify, and OpenCorporates publishes no change feed.[3][13] Recordwire sends every formation, and in its seven file states every later change, as dated events through REST, webhooks, and MCP. It covers twelve states, fewer than either vendor.[14][10][8]

Compare each with Recordwire: Middesk vs Recordwire and OpenCorporates vs Recordwire.

Questions

Which one publishes pricing?

OpenCorporates: £225, £660, or £1,200 a month by call volume, with bulk by quote.[6] Middesk sells through a contact form.[4]

Which one alerts me when a business changes?

Middesk, for businesses you monitor, by webhook and email.[3][15] OpenCorporates publishes no webhooks or change alerts.[13][6]

Which one has an MCP server?

Middesk has an official one, over HTTP and SSE, with access through sales.[16] OpenCorporates publishes none.[13]

Which one covers more countries?

OpenCorporates covers 140+ registries worldwide.[5] Middesk’s registration docs describe searches in all 50 states and D.C.[1]

More comparisons

Sources

  1. Middesk docs: registration. https://docs.middesk.com/verify-business/registration. Accessed 2026-10-16.
  2. Middesk: business verification. https://www.middesk.com/solutions/verification. Accessed 2026-10-16.
  3. Middesk docs: how monitoring works. https://docs.middesk.com/monitor-activity/how-monitoring-works. Accessed 2026-10-16.
  4. Middesk: talk to an expert. https://www.middesk.com/contact. Accessed 2026-10-16.
  5. OpenCorporates home page. https://opencorporates.com/. Accessed 2026-10-16.
  6. OpenCorporates pricing. https://opencorporates.com/pricing/. Accessed 2026-10-16.
  7. Middesk llms.txt. https://www.middesk.com/llms.txt. Accessed 2026-10-16.
  8. Recordwire API docs. https://recordwirehq.com/docs. Accessed 2026-10-16.
  9. OpenCorporates registers. https://opencorporates.com/registers. Accessed 2026-10-16.
  10. Recordwire coverage by state. https://recordwirehq.com/states. Accessed 2026-10-16.
  11. Middesk docs: business timeline. https://docs.middesk.com/monitor-activity/timeline. Accessed 2026-10-16.
  12. OpenCorporates: delivery latency explained. https://knowledge.opencorporates.com/knowledge-base/delivery-latency-explained/. Accessed 2026-10-16.
  13. OpenCorporates API reference. https://api.opencorporates.com/documentation/API-Reference. Accessed 2026-10-16.
  14. Recordwire change events. https://recordwirehq.com/change-events. Accessed 2026-10-16.
  15. Middesk docs: webhooks. https://docs.middesk.com/build/webhooks. Accessed 2026-10-16.
  16. Middesk docs: MCP server. https://docs.middesk.com/build/mcp-server. Accessed 2026-10-16.
  17. Recordwire MCP server. https://recordwirehq.com/mcp. Accessed 2026-10-16.
  18. Middesk docs: owners and officers. https://docs.middesk.com/verify-business/owners-officers. Accessed 2026-10-16.
  19. Recordwire pricing. https://recordwirehq.com/#pricing. Accessed 2026-10-16.

Something here out of date? Email brian@recordwirehq.com and it gets fixed.