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Gridlode
LiveContacts and enrichment1 credit / request

Email Checker API

Deliverability checks without contacting the mailbox: syntax, normalized address, whether the domain exists, its mail servers (MX, sorted by priority) and null-MX policy, plus disposable-domain, role-account (info@, sales@) and free-provider flags and a suggestion for common typos such as gmial.com. Returns a verdict (deliverable_unknown, risky or undeliverable) with reasons. The mailbox itself is never probed over SMTP, so "deliverable_unknown" means the address looks fine but is not confirmed.

GEThttps://api.gridlode.com/v1/contacts/email-check
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Parameters

NameTypeDescription
emailrequiredstringEmail address to check, e.g. [email protected].
max_ageintegerAccept a cached answer up to this many seconds old, billed at 50%. Default 0 (always fresh).

Response fields

    Code

    curl "https://api.gridlode.com/v1/contacts/email-check?email=info%40python.org" \
  -H "Authorization: Bearer $GRIDLODE_KEY"
    1 credit per request
    One credit is $0.001 on the smallest pack, from $0.0003 on enterprise plans.
    Half price for cached data
    Cached for up to 24 h. Pass max_age to use it.
    Failed requests are free
    Blocks, timeouts and target errors never cost credits.

    Market reference: ZeroBounce $19.50 → $7.50 per 1k (with SMTP).

    Questions

    Part of these solutions
    How much does the Email Checker API cost?

    1 credit per request. One credit costs $0.001 on the smallest pack and as little as $0.0003 on enterprise plans. Cached answers cost half and failed calls are free.

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