For brands & marketers
Respect preferences. Send with confidence.
Check InboxConsent before every campaign. Suppress recipients who've asked to avoid sensitive topics—Mother's Day, fertility, bereavement, alcohol, and more—without losing them from your list.
What you get
One API. Full control.
Suppress before send
Send us hashed emails + campaign tags. We return allow/block per recipient. No plain emails—privacy-first.
Rich categories
Seasonal, life events, lifestyle, and umbrella controls. Users set preferences once; you honour them across campaigns.
Ready integrations
Connect Klaviyo, Mailchimp, or Shopify from your dashboard. Use our API from any platform or custom stack.
How it works
Simple integration
- 1
Get your API key
Sign up, create a company, and copy your API key from the dashboard.
- 2
Call before you send
Before each campaign, POST hashed emails + campaign tags to our check endpoint.
- 3
Suppress blocks
Remove any recipient we mark as "block" from that send. Everyone else gets the campaign.
Example request
POST /api/v1/check
x-api-key: your_key
{ "hashes": ["sha256..."], "campaign_tags": ["mothers_day"] }Integrations
Works with your stack
Connect from the dashboard or call our API from your own systems. Step-by-step guides for each platform.
Webhook + profile property. We host the bridge; you add one URL to your flow.
Setup guide →MailchimpPre-send script: tag blocked members, then exclude that tag from your campaign segment.
Setup guide →ShopifyFlow: Send HTTP request with API key in secure secrets, then branch on allow/block.
Setup guide →Pricing
Start free. Scale as you grow.
Free tier includes 2,000 API checks/month and one integration. Upgrade for more volume, brand preference portals, and priority support.
Compare plans (after sign-in)
FAQ