$39/2,000 credits Free tier MCP API
Why it comes up: A long-established verifier with a free 100 a month and credit packs from $39 for 2,000, if you want a public review record.
Stands out: Validation plus quality scoring on one meter, with a real free 100-credit allowance and a public $99/month subscription.
Watch out: Pay-as-you-go starts at $39 for 2,000 validations if you do not want a subscription. Heavy lists will burn the 10,000-credit ONE cap.
Best for
- Recruiting and sales teams cleaning lists before send
- Ops that want validation as an API
- Desks that need scoring, not only deliverable/undeliverable
4.8 on Capterra from 591 reviews
Read the ZeroBounce write-up · Verifully vs ZeroBounce
$8/1,000 credits Free trial MCP API
Why it comes up: Never-expiring credits plus an official MCP server, if you want to check emails from an AI assistant.
Stands out: Bouncer runs a free MCP server at https://api.usebouncer.com/mcp that connects to Claude or ChatGPT over OAuth 2.1, so a recruiter can paste a CSV into a chat and get a cleaned list back without opening the app. It exposes the same engine as the API, including single checks, batch jobs, domain checks, toxicity lists and a credit balance check, and it costs nothing beyond the credits used.
Watch out: Entry pricing is mid-market rather than cheapest: $8 per 1,000 credits against $6.99 at EmailListVerify, with a 1,000 credit minimum purchase. The pieces people assume are included are separate lines: the Deliverability Kit is a subscription from $25/month and Bouncer Shield is priced by monthly form checks. Verification data is processed in the EU only, which is a plus for GDPR and a question to ask if your policy requires US processing.
Best for
- Recruiters and lead generation teams cleaning cold outreach lists before a send
- Teams with uneven volume that do not want a monthly seat or credit subscription
- Developers who need a documented real-time API on signup forms and sequencers
4.9 on Capterra from 279 reviews
Read the Bouncer write-up · Verifully vs Bouncer
Why it comes up: Pay-as-you-go verification with credits that never expire, a free email finder and an MCP server.
Stands out: The email finder is free to search and only charges when you verify a guess, and verification stops at the first valid address, so finding a hiring manager's email costs one or two credits rather than a subscription. The MCP server works on a free account and signs in with OAuth, so a recruiter can ask Claude to check an address mid-conversation.
Watch out: The $4 per 1,000 rate is a launch discount locked only through the end of 2026, and the list price is $8, the same as NeverBounce and Bouncer. ClearBounce is a young product run by a sole proprietor, so weigh support depth for high-volume or contract-critical use. Inbox placement testing and blocklist monitoring are a separate subscription, not part of the verification credits.
Best for
- Recruiters cleaning candidate or client lists exported from a sourcing tool before a sequence
- Agency desks that verify in bursts and want credits that never expire
- Recruiters who want to check or find an email from inside Claude or ChatGPT
Read the ClearBounce write-up · Verifully vs ClearBounce
