Clay.com HTTP API Email Verification Waterfall
Stop paying 2×–4× Clay credit markups on built-in verifiers. Use Clay’s native "HTTP API" enrichment column with your own KaijuVerifier API key to verify prospects for $0.00095/email ($0 for Unknowns).
Clay.com
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Target Field: {"email": "/Work Email"} (Clay HTTP API Column)
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Compliance Guard: 0 Clay Credits Consumed (BYOK HTTP API)
⚙️ Clay Telemetry Specs
Drop Your Clay.com CSV or Excel Export — Free Pre-Scan + 5-Email Live SMTP Sample
Count unique contacts, remove duplicates free ($0), preview 5 live SMTP checks, and unlock full list cleaning for $19.
⚙️ Integrations · Clay Pipeline Specifications & Column Rules
Calculate Your Clay.com Savings
Across Clay.com workspaces, roughly 16% of unverified {"email": "/Work Email"} (Clay HTTP API Column) records are invalid, deactivated, disposable, or duplicate contacts that inflate your Clay.com invoice every month:
How to Verify Your Clay.com List in 3 Steps
1. Add an "HTTP API" Enrichment Column in Your Clay Table
In any Clay.com table, click Add Column → Add Enrichment → search for "HTTP API" (Bring Your Own Key — 0 Clay credits consumed!).
2. Set Method to POST & Endpoint to /api/v1/verify-single
Enter URL: https://kaijuverifier.com/api/v1/verify-single. Add Header Authorization: Bearer kv_live_YOUR_KEY and Content-Type: application/json.
3. Map status, score, is_catch_all & mx_provider into Clay Columns
Pass {"email": "/email_column"} in the JSON Body and click into the response in Clay to create columns for status, score (0–100), is_catch_all, and mx_provider!
Using Clay’s HTTP API column with KaijuVerifier costs 0 Clay credits and $0 for Unknown/Greylisted responses.
curl -X POST https://kaijuverifier.com/api/v1/verify \
-H "Authorization: Bearer kv_live_your_api_key" \
-H "Content-Type: application/json" \
-d '{"email": "{{{"email": "/Work Email"} (Clay HTTP API Column)}}"}'
Frequently Asked Questions — Clay.com Email Verification
How much money do I save using KaijuVerifier via HTTP API in Clay.com?
Native Clay verification integrations consume 0.5 to 1 Clay credit per row (~$0.03–$0.07/row, or $300–$700 per 10k). Using Clay’s HTTP API column with your KaijuVerifier key costs 0 Clay credits and as little as $0.00095 per email ($9.50 for 10,000 checks in your first month)—a 97% cost reduction!
Can I use KaijuVerifier’s mx_provider output in Clay to route leads by ESP?
Yes! Because our API returns the detected MX provider (Google Workspace, Microsoft 365, Proofpoint, Zoho), Clay power users route Google-hosted prospects to Google sender inboxes and Microsoft prospects to Outlook inboxes.