Skip to main content
Autobound
New Capability

Email Verification API: Stop Bouncing, Start Connecting

You found the right contacts. Your signals identified accounts showing buying intent. Now close the last gap in your outreach workflow — source contacts whose emails are already verified.

You found the right contacts. Your signals identified accounts showing buying intent. Your enrichment data surfaced the decision-makers. Now you're about to hit send on a perfectly crafted sequence — and 15% of those emails are going to bounce.

That's the gap in every signal-driven outreach workflow: signal accuracy means nothing if your emails never land.

Today, we're closing that gap. The Autobound Signal API now includes email verification — delivered as data. Every contact returned by the Buyer Intent API carries a validation status, so the verification work is done before you ever see the record.

What it does

One field and one filter. One purpose: make sure every address you source will actually receive your message.

email_validation_status

On every contact from POST /v1/buyer-intent/contacts

email_validated: true

Request filter — verified emails only, incl. bulk exports

For every contact, you get back:

  • Validation status — values like 'Valid (Esp)' and 'Valid (Digital)', or null when the address hasn't been validated
  • Contact details — name, job title, LinkedIn URL, mobile phone where available
  • Company firmographics — employer name, domain, industry, size buckets
  • Intent context — the topics the contact's company is researching

No guessing. No "probably fine." Concrete, actionable results you can build automation around.

How it works

Most email verification tools make you run a second pass after you source contacts — another API, another vendor, another step where addresses slip through.

We flipped the order: verification happens before the data reaches you.

01

Pre-Computed Validation

Email validation runs on the contact dataset itself, not on demand. By the time a contact shows up in an API response, its address has already been checked.

02

Status on Every Record

Each contact carries an email_validation_status field showing whether and how the address was validated — so you can store it, score on it, and route on it.

03

Verified-Only Filter

Pass email_validated: true on POST /v1/buyer-intent/contacts or the bulk export and unverified addresses never enter your pipeline in the first place.

Why this matters

Email deliverability isn't vanity metrics. It's money.

Sender reputation compounds. Every bounce damages your domain reputation with ESPs. Enough bounces and your entire domain gets throttled — including emails to verified, engaged contacts.

Wasted credits add up. If you're paying per-email for enrichment, sequencing, or warming tools, sending to dead addresses is burning budget with zero upside. At scale, a 10% invalid rate on a 50K-contact campaign is 5,000 wasted sends.

Signal-driven outreach demands signal-quality verification. You're using buyer intent data to time outreach perfectly. The ROI of that precision evaporates if the email address is stale.

Signal Data API

Turn these insights into pipeline

700+ real-time buying signals from 35+ sources. Know exactly when prospects are ready to buy.

Get 1,000 Free CreditsExplore Signal Data

Pricing

Included. That's it.

Buyer-intent contacts cost 1 credit per contact returned — the validation status and the email_validated filter add nothing on top. Zero-result requests are never charged. Same credits you use for enrichment and signal lookups. No separate billing, no minimum commitments.

Example

Request
curl -X POST 'https://signals.autobound.ai/v1/buyer-intent/contacts' \
  -H 'X-API-KEY: your_api_key' \
  -H 'Content-Type: application/json' \
  -d '{
    "topic_ids": ["b2b_2990"],
    "email_validated": true,
    "page_size": 50
  }'
Response
{
  "contacts": [
    {
      "topic_id": "b2b_2990",
      "intent_score": 12,
      "contact": {
        "first_name": "Jane",
        "last_name": "Doe",
        "email": "prospect@company.com",
        "email_validation_status": "Valid (Esp)",
        "job_title": "VP of Engineering"
      },
      "company": { "name": "Company", "domain": "company.com" }
    }
  ],
  "count": 1,
  "page_size": 50,
  "next_cursor": null
}

No SDK required. No webhook setup. One POST, verified contacts back.

Use cases

  • Send-ready intent lists — contacts showing purchase intent with verified emails, in one query
  • Sender reputation protection — unverified addresses never enter your sequences, so bounce rates stay low
  • AI SDR guardrails — wire email_validated: true into autonomous pipelines so agents only email verified addresses
  • Bulk list building — async JSONL exports deliver thousands of pre-verified contacts per job
  • Scoring and routing — store the validation status in your CRM and prioritize verified contacts

Start with verified emails

Already on the Signal API? Pass email_validated: true on buyer-intent contacts today. New to Autobound? Sign up free with 1,000 credits.

Open API ExplorerView Pricing