Agencies use case

One Verifly credit pool. Every client list. No per-seat tax.

Agencies inherit messy client exports — aging CRMs, purchased data, enrichment guesses. One bad send burns the client’s domain and your retainer. Verifly standardizes verify-before-send across Clay, Instantly, Smartlead, Salesforge, HubSpot, and Zapier with prepaid credits that never expire and no per-client monthly verifier seat.

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Verify a client's list programmaticallyAPI

curl -X POST "https://verifly.email/api/v1/verify/batch" \
  -H "Authorization: Bearer vf_your_api_key" \
  -H "Content-Type: application/json" \
  -d '{"emails":["lead1@client.com","lead2@client.com"]}'

Real-time SMTP mailbox checks

Single, batch, and async bulk verification

Disposable, role account, and catch-all detection

Pay-as-you-go credits with no subscription lock-in

Search fit

Built for agency email verification workflows

Use Verifly when you need a simple API, predictable pricing, and clean JSON results before emails hit your product, CRM, or campaign tool.

Onboarding: bulk-clean inherited client lists before first campaign

Shared credit pack across many client sequencers and CRMs

White-label reporting: deliverable vs undeliverable rates per client

Automation: n8n/Make/Zapier verify gates in every client pipeline

The agency problem: someone else’s data, your reputation

Client onboarding hands you lists you did not build: ancient CRM exports, three-tool spreadsheets, sometimes purchased data. The first campaign is expected yesterday. If the list is full of dead and catch-all addresses, hard bounces hit the client’s sending domain — and your agency’s credibility.

Multiply across a roster and verification becomes an operational safeguard. You need one clean step for every client, priced for spikes, without negotiating a separate monthly verifier seat per workspace.

Standardize verify-before-send once

Wire Verifly into onboarding and pre-send checklists once. Async bulk for inherited dumps; batch for weekly top-ups; single verify in Zapier/Make/n8n for real-time form → CRM flows. Return verdicts plus disposable, role, and catch-all flags so you can report list quality before spending reputation.

Create one agency Verifly account (or per-client keys if you bill separately).
Onboard: POST async bulk for the inherited list; share quality report.
Ongoing: Clay column or automation verify before sequencer import.
Roll credits across clients — packs never expire between retainers.

Async bulk for a large client dump

curl -X POST "https://verifly.email/api/v1/verify/bulk" \
  -H "Authorization: Bearer vf_your_api_key" \
  -H "Content-Type: application/json" \
  -d '{"emails":["…up to 1M…"]}'

Why agencies prefer PAYG over monthly seats

Client volume is lumpy. Monthly seats bill quiet months and still surprise you on launch weeks. Verifly packs from $10 (5k) to $599 (1M at $0.60/1k) sit as prepaid inventory. Estimate with /tools/credit-calculator; see the anonymous agency case study for a permutation-heavy workflow.

Contact: hello@veriflyemail.com only.

FAQ

Frequently asked questions

Can we use one API key for all clients?

Yes. Many agencies share one pack and tag usage internally. Others mint per-client keys for clean billing. Both work — credits never expire either way.

Do you offer agency discounts?

Published packs already scale to $0.60/1k at 1M. For larger or dedicated needs, email hello@veriflyemail.com — that is the only contact route.

How do we show ROI to clients?

Report pre-send undeliverable/disposable rates and estimated bounce cost avoided (see /tools/bounce-bill-calculator). Clients understand “we removed X% bad emails before warmup.”

Does Verifly replace enrichment tools?

No. Keep Apollo/Clay/etc. for finding emails. Verifly only answers deliverability before send or CRM push.

Ready to wire this?

Start free with 100 credits, mint a vf_ API key, and paste the recipe above. Buy a pack only when you need more — credits never expire.

Start free · 100 credits View pricing API docs