NeverBounce
Validate single emails or run bulk-list verification jobs via NeverBounce. 6 tools, query-string API-key auth.
7-day free trial · No credit card · EU-hosted
Ask NeverBounce anything
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Setup in 2 minutes
- 1Start a free trial on cloud.anythingmcp.com.
- 2Click NeverBounce in the connector store. Paste credentials when prompted.
- 3Mint an MCP API key and point your AI client at the generated MCP URL.
Guides for NeverBounce
Step-by-step setup for the most popular AI clients.
Setting up NeverBounce
From the connector definition itself: where to find the credentials, what they need to be allowed to do, and which API this adapter talks to.
This connector uses the NeverBounce API v4.2 (developers.neverbounce.com).
Setup:
- Sign in to https://app.neverbounce.com → Apps → New API Key.
- Copy the key. Set
NEVERBOUNCE_API_KEY.
Authentication: query-string ?key=.... NeverBounce also supports a custom Auth header but query-string is the primary.
Single vs Bulk:
neverbounce_single_check: synchronous single-email verification. ~1 credit. Returns result (valid/invalid/disposable/catchall/unknown) + flags + suggested_correction.neverbounce_create_job: async bulk verification of a list (up to 1M emails). Returns job_id; poll status withneverbounce_job_statusuntil status='complete'; thenneverbounce_job_resultsto fetch.
Result codes: 0=valid, 1=invalid, 2=disposable, 3=catchall, 4=unknown. Use ONLY 0 (valid) for safe sends if you're conservative.
Bulk job flow: 1) create_job with input.payload=array of {email,name?,id?} OR input.payload=URL to CSV. 2) parse the job into ready state via parse_async OR auto_parse=true flag at create. 3) start the job via start. 4) poll status. 5) fetch results. The adapter abstracts steps 2-3 via the auto_parse + auto_start flags on create.
Cost: per credit per email checked. Bulk jobs are slightly cheaper than singles.
Out of scope here: account billing, custom integrations dashboard.
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