Four production-ready APIs — sanctions screening, UK postcode enrichment, webhook delivery, and email DNS compliance. Free tier included. No credit card required to start.
Each API does one thing well. No sprawling SDKs. No vendor lock-in. Plain JSON over HTTPS.
Batch-screen up to 1,000 names per call against OFAC SDN, UK HMT OFSI, and EU consolidated lists. Subscribe to real-time delta webhooks so you're notified the moment a name is added or removed — no polling required.
Resolve any UK postcode to lat/lng, LSOA, MSOA, district, region, and full IMD 2019 deprivation data (decile, quintile, score). Built on ONS Postcode Directory — no ONS account or data licence required.
Guaranteed at-least-once delivery with idempotency keys. If your endpoint is down, events queue automatically and retry with exponential backoff. 7-day retention on the free tier. GDPR-compliant UK data residency.
One API call returns a composite compliance score across MX, SPF, DKIM, DMARC, BIMI, and DNSSEC. Identifies exactly which records are missing or misconfigured. Essential since Google and Yahoo's 2024 bulk-sender mandate.
Common workflows across compliance, data, and engineering teams.
Screen onboarding applicants and transaction counterparties against all major sanctions lists at the point of KYC.
Enrich customer postcodes with IMD deprivation data to refine risk models for home and motor products.
Rank locations by deprivation index, admin boundary, and demographic profile — one API call per postcode.
Audit domain portfolios for SPF, DMARC, and BIMI gaps before a campaign send. Bulk-check lead lists programmatically.
Offload reliable webhook delivery from your own stack. Idempotency keys prevent duplicate processing on retries.
Join patient or cohort postcodes with IMD data to support ICB budget allocation and population health dashboards.
Start free. Upgrade when you're ready. All plans billed monthly, cancel any time.
No SDK required. Any HTTP client works.
Enter your email in the pricing section above. Your key is issued instantly — no credit card required.
Pass X-API-Key: ys_<your_key> on every request. No OAuth flow, no token refresh.
Plain JSON in, plain JSON out. All APIs return consistent error codes and messages.
Hit the free-tier limit? Upgrade to Pro via Stripe. Your existing key continues to work.