Verify someone's identity
Check a document for fraud
Validate an address
Screen a business
200+ tools, one platform
One platform.
Every check your business needs.
Run identity, document, address, property, and fraud checks as single services or connected workflows. One platform for every verification decision.
Used by teams in finance, legal, property,
compliance, insurance, and lending
Finance
Onboarding, KYC, and fraud prevention
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Legal
Due diligence and document assurance
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Property
Property intelligence in one call
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Compliance
Consistent controls, every time
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Lending
Faster decisions, fewer vendors
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Insurance
Entity and risk verification at scale
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Atomic Services
Explore our services
connecting
We are verifying
detecting
Why CheckIO
The tools you need.
None of the headaches.
Use one or use many
Run a single check on its own, or combine dozens into a workflow. You decide.
Build workflows visually
Connect checks in sequence, add conditions, branch on results. No code required.
Live in hours, not months
One API, clear docs, and a team that picks up the phone. You'll be running checks in hours.
Check everything at once
Identity, documents, addresses, business data — verify the whole picture, not just a piece of it.
Answers, not just data
Every check returns a clear result with a confidence score and the evidence behind it.
Built for regulated teams
Full audit trails, consistent controls, and the kind of evidence your compliance team actually needs.
Made for ops, not just devs
Your operations team can configure checks and workflows without waiting for engineering.
UK, EU, and beyond
Data sources across jurisdictions. One integration handles the lot.
Your dashboard
Everything your team runs. One place to see it.
Live results, response times, usage stats, and audit trails — no more chasing vendors for reports.
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Settings
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Verification Services
Monitor usage and performance
Total checks
12,847
Success rate
94.2%
Avg response
142ms
Active workflows
23
API Usage
Response Times
Getting started
Up and running in hours.
Single checks or full workflows
Conditions and branching
API or dashboard — your choice
Live in hours
Clear pass, fail, or flag
Evidence behind every result
Full audit trail for your records
Who it's for
Your industry.
Your problems. Solved.
Finance
“Your team is spending hours on onboarding checks that should take minutes. We fix that.”
Finance
Legal
“You need to verify people, documents, and entities — without the back-and-forth between six tools.”
Legal
Property
“Property data is scattered across a dozen sources. We bring it together so you can qualify faster.”
Property
Compliance
“Every team runs the same checks, every time. No more drift, no more manual workarounds.”
Compliance
CheckIO powers verification workflows across finance, legal, property, and compliance.
All use cases →Questions?
Here are the ones we get asked most.
We give you access to 200+ tools for checking people, documents, addresses, properties, and businesses — all through one API. Think identity verification, fraud detection, address lookups, EPC data, signature matching, and a lot more. Use one tool or chain them together into a workflow.