How to integrate Scrubby with Clay in 2026
Connect Scrubby to Clay in 15 minutes. Step-by-step HTTP API setup, catch-all validation benchmarks, and the 3 errors that break most installs.
Catch-all domains make up 20-40% of most outbound lists. Every “risky” verdict your standard email verifier returns represents a contact you'd skip, a meeting that won't get booked, and pipeline that disappears before your sequence even starts. Scrubby's live mailbox pinging recovers that opportunity by validating exactly what NeverBounce and Bouncer can't touch.
By Rishabh Ambasta, Founder, Modern Inbound.
How Scrubby and Clay Work Together
This integration connects Scrubby's catch-all email verification API to Clay's HTTP enrichment column. Clay identifies and stores the email, fires it to Scrubby, and receives a deliverability verdict in return. The whole workflow runs inside a single Clay table with no file exports or separate app logins required.
What makes this pairing different from running a standalone verifier is placement. Scrubby sits at the end of your enrichment waterfall: after Clay has identified, enriched, and pulled email addresses from multiple providers, Scrubby makes the final call on whether each address is safe to include in your outreach. You're only spending Scrubby credits on emails that passed every other check.
Traditional verifiers like NeverBounce flag catch-all domains as “unknown” and stop there. Scrubby attempts actual delivery to determine whether the specific mailbox accepts mail. Teams running Scrubby in Clay report recovering 15-30% of contacts that would otherwise get cut from their outreach lists.
Prerequisites: What You Need Before Setup
You need three things before connecting Scrubby to Clay: a Clay account with HTTP API column access, a Scrubby account with API credentials, and a table that already has email addresses populated. Clay's HTTP API column requires a paid plan. If it appears locked, you'll need to upgrade before starting.
Have your Scrubby API key copied and ready before opening Clay. Finding it mid-setup causes more configuration errors than any other single step in this workflow. Your Scrubby credit balance also needs to cover your planned verification volume. Running out mid-enrichment produces partial results that aren't clearly flagged in Clay's interface.
If your Clay table doesn't yet have emails populated, add your email enrichment columns first. Scrubby can't verify an empty cell.
Step-by-Step Setup Guide
Setup takes under 15 minutes when your API key is ready. The step that trips most teams up isn't the API call itself but the formula column needed to parse Scrubby's response. Plan for that before you start and the rest moves quickly.
- Retrieve your Scrubby API key. Log into Scrubby, navigate to API settings, and copy your key. Keep this browser tab open throughout setup.
- Add an HTTP API column in Clay. Click the column adder in your Clay table, select HTTP API, and name it something like Scrubby Raw Response.
- Configure the HTTP request. Set the method to POST and enter Scrubby's verification endpoint. In the Authorization header, enter
Bearer YOUR_API_KEYwith your actual key in place of the placeholder. Don't put the API key in query parameters. Scrubby won't authenticate that way. - Map the email field as the request body parameter. In the body configuration, add the parameter name Scrubby expects and set its value to your Clay email column reference. Run a test on a single row before running the full table.
- Add a formula column to extract the status. Clay stores the full HTTP response as raw JSON in the HTTP API column. Add a second column using Clay's formula syntax to pull out the status field from Scrubby's response. That extracted value is what you'll filter on, not the raw response.
- Filter your table by Scrubby status. Use the reference table below to decide what to do with each verdict before exporting to Smartlead or Instantly.
| Scrubby Status | What It Means | Recommended Action |
|---|---|---|
| valid | Mailbox confirmed to accept mail at time of check | Include in outreach sequence |
| invalid | Mailbox does not exist or actively rejects mail | Remove from all lists |
| risky | Catch-all behavior unclear after Scrubby's check | Include at lower send frequency or exclude |
| error | Verification timed out or API request failed | Re-run enrichment or exclude as a precaution |
Troubleshooting Common Setup Errors
Three configuration mistakes cause 80% of failed Scrubby and Clay setups: incorrect Authorization header format, mismatched body parameter names, and a missing formula column to parse Scrubby's JSON response. Each takes under two minutes to fix. A fourth edge case, unhandled timeout errors, is less common but worth building for before you run a large table.
The most common error is putting the API key in query parameters instead of the Authorization header. Scrubby's API requires Bearer token authentication in the header, not the URL. If your column returns 401 errors on every row, move the key to the header with the Bearer prefix and it resolves immediately.
The second error is mismatched parameter names in the request body. Scrubby expects a specific field name. If you've named it with an uppercase letter or used the wrong key entirely, you'll get 400 bad request responses with no useful error message in Clay's UI. Check the exact field name in Scrubby's API documentation.
The third error is skipping the formula column. Teams that report Scrubby “doesn't work in Clay” are almost always filtering on raw JSON from the HTTP API column. The integration isn't broken. The setup is. Add a formula column to extract the status field and your filter will work.
Edge case: Scrubby occasionally times out on slow mail servers. Clay records these rows as errors, not blanks. Without an explicit error-state filter, error rows can slip into your valid export. Build that filter before you run the full table.
Credit Costs and Plan Considerations
Running Scrubby inside Clay burns credits on both platforms. Clay charges per enrichment row for HTTP API columns against your monthly allocation. Scrubby charges per verification. On a 5,000-row catch-all list, that's 5,000 Scrubby credits plus the Clay row cost for that column run.
The efficient approach: run Bouncer or NeverBounce first, then send only risky and catch-all verdicts to Scrubby. On a typical 10,000-contact outbound list, you'll usually get 2,000-3,500 risky verdicts. Running Scrubby on those instead of all 10,000 cuts your credit spend by 65-70% with no loss in coverage.
Scrubby's credit tiers drop the per-credit rate at higher volumes. If your team verifies more than 5,000 catch-all contacts per month, calculate your average monthly volume before picking a package. Topping up in small batches consistently costs more per credit than committing to a higher tier upfront.
Use Cases: When This Integration Earns Its Keep
The Scrubby and Clay integration earns its credit cost in three specific scenarios: pre-send list cleaning, re-engagement list recovery, and final-gate validation in a multi-provider enrichment waterfall. Outside these, you're spending credits on verification a standard verifier already handled.
Pre-send list cleaning is the core use case. Before importing into Smartlead or Instantly, run your Clay table through this workflow to filter invalid and risky emails. Teams that do this before every campaign launch hold stable sender reputation scores over 90-day periods. Teams that skip it typically see deliverability decay around the 60-day mark.
Re-engagement list recovery is the second scenario. Lists older than 12 months have elevated catch-all rates because mail server configurations change as domains age. Running an old contact list through Scrubby inside Clay identifies which catch-all addresses are still live, without a manual CSV upload to a standalone cleaner.
Multi-provider waterfall validation is the third application. When you're pulling emails from multiple enrichment providers inside Clay, each source uses different confidence scoring with incompatible methodologies. Scrubby acts as the final verification gate regardless of which provider found the email. That's more reliable than trusting any single provider's confidence score, and no individual enrichment vendor will tell you that directly.
Build It Yourself or Hand It Off
This integration is straightforward to set up if you're comfortable inside Clay's HTTP API columns. The 15-minute timeline is accurate for teams that work in Clay daily. If you're building this alongside a dozen other enrichment steps, or you're new to Clay's column system, the real time cost is higher. The formula column step alone can take an hour when you're not used to Clay's syntax.
If you'd rather skip building the workflow yourself, that's what Modern Inbound handles. Get in touch and we'll walk you through the full stack: account list building, multi-provider enrichment, Scrubby catch-all validation, and meeting routing.
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