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Postcoder helps insurers verify customer contact data at the point of quote or application – reducing fraud risk, improving customer communications and speeding up claims processing.

Insurance fraud costs the industry enormous sums every year. Getting customer data right at the point of application is one of the most cost-effective things an insurer can do. It reduces the volume of returned correspondence, supports faster claims handling and gives your fraud detection systems better data to work with.
Unverified contact data makes fraudulent claims harder to detect. But beyond deliberate fraud, inaccurate customer data creates a broader set of operational headaches: communications that never reach policyholders, billing addresses that don't match underwriting records and claims that are delayed because contact details are wrong.
£1 billionlost to insurance fraud in 2025.The ABI
Postcoder is a multi-feature API you can integrate into your website or app quickly and easily using pre-built integrations, sample code and API reference, all within clear and well-structured docs. You can be up and running in minutes with a free trial, and Postcoder's support specialists are always on hand if you need help.
Everything you need to verify customer data from quote to claim:
Verified address capture at the point of application with support for 249 countries worldwide.
Confirm policyholder email addresses are real and deliverable before sending policy documents or renewal notices.
Verify mobile numbers are genuine and live. Essential for renewal reminders, claims updates and fraud alerts.
SMS-based one-time password verification for secure policyholder account access and sensitive transactions.
Real-time sort code and account number validation to support accurate, first-time claims payments.
"Postcoder is super straightforward to use and does exactly what I need it to — quick and accurate address lookup. The API is fast and reliable, and the setup was simple. It has multiple options to search for an address and this allows us to A/B which works best for our UI/UX."
Daniel H. Senior Software Engineer, Insurance Industry / G2 review
"Simple to integrate, clean verified addresses, easy to use for our end users. Helpful and quick responses from the support team."
Verified User Insurance Industry / G2 review
"Postcoder is a single API that provides all the features we need… Rather than integrate several APIs, we only had to integrate one."
Carl Horn Head of Digital Servicing & Customer Transformation / Capquest
Businesses rate Postcoder 4.7 stars out of 5 on the world's most trusted software marketplace.

Start your free 30-day trial and see how Postcoder helps you capture better data, reduce fraud exposure and speed up every customer interaction.