Clay
Pair Clay's enrichment waterfalls with Allegrow's B2B email verification, so every address a waterfall returns gets a conclusive valid or invalid result before it leaves your table.
Clay
Allegrow runs as a verification step inside your Clay table, resolving the addresses your waterfall returns, including the catch-all and gateway-fronted domains where most verifiers hand back "unknown" and leave the decision to you.
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About Clay integration
A waterfall exists because no single provider covers everyone. It returns an address for more of your list, and it returns addresses of mixed provenance: some confirmed, some inferred from a pattern, some carried over from a source that has not been checked in a year. Enrichment tells you an address exists. Verification tells you whether anyone is behind it.
That gap widens on exactly the accounts worth working. Enterprise domains run catch-all and sit behind secure email gateways, so a basic SMTP check accepts every address and a generic verifier returns catch-all, risky or unknown. The contact stays in the table without a decision attached, and the team either drops a real person or sends to an address nobody confirmed.
What you unlock with Clay + Allegrow
- Verification as a column: run Allegrow on any table and write the result straight back alongside your waterfall output.
- Conclusive results on hard B2B infrastructure: valid or invalid on catch-all and gateway-fronted enterprise domains, rather than an unknown.
- Waterfall output you can act on: the addresses that survive enrichment get a decision before they reach a sequence.
- Granular risk factors: fetch the specific signals behind a result, including spam trap and known complainer indicators.
- Unlimited verification: revalidate a table as often as you need without watching a per-record cost.
- Cleaner exports downstream: suppress invalid and risky contacts before anything syncs to your CRM or sales engagement platform.
To connect Clay with Allegrow you need an active Allegrow subscription, your Allegrow API key, and a Clay plan that includes the HTTP API enrichment, which starts at Explorer. Allegrow runs as an HTTP API column in your table, calling the Validate Email endpoint and writing the result back to the row.
The fastest route is the shared Clay table, which arrives preconfigured and needs only your API key. To build the column yourself:
Connect in a few steps
- Generate your Allegrow API key: follow the API key guidance in our help center.
- Add an enrichment to your Clay table: search for and select HTTP API.
- Set the column mapping: method
POST, endpointhttps://api.allegrow.co/v1/email/validate, and a body of{"email": "/{your email column}"}. - Add the authentication header: key
x-api-key, with your Allegrow API key as the value. - Set a custom rate limit: 5 requests per 1,000 ms.
- Run the column: across a limited set of rows or the whole table. A 200 response returns the result, and the risk analysis fields can be written into their own column.
Note: if your Clay plan does not include the HTTP API enrichment, contact us.
What comes back is a status rather than a score, and the one worth understanding first is dead_email: an invalid contact sitting on a catch-all server. The full status dictionary covers the rest.
Allegrow provides a dedicated Customer Success Manager as your primary point of contact for anything related to the Clay integration, covering setup, best practices, and scaling your workflow safely.
How we support you
- Zoom meetings scheduled directly with your CSM
- Email support with your CSM for quick questions and follow-ups
- Live chat via in-app customer support for time-sensitive issues
- Self-service documentation in our help center, including connection guidance
- Knowledge base articles with repeatable best practices for verification and sender reputation
- Included deliverability reviews such as spam reviews and rewrite examples, with the number available depending on your plan
Your Customer Success Manager proactively reaches out to schedule meetings with you and other relevant stakeholders during your Allegrow subscription, to help you use the functionality Allegrow contains. You can also request access toyour Customer Success Manager's calendar and book a time that suits you and your team.
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