B2B data APIs for
Outbound Specialists

Use BlitzAPI to find better accounts, reach the right decision makers, enrich contacts, validate emails, and launch cleaner outbound campaigns.

Get 1,000 credits freeContact us

Launch outbound from
cleaner data

Find the right accounts, contacts, emails, and signals before you send
BlitzAPI helps you identify target accounts, find the best decision makers, enrich contacts with verified emails and phone numbers, and use job signals to reach companies at the right moment.
Build prospect lists with ICP-fit accounts and relevant stakeholders.
Validate emails before campaigns to reduce bounce risk.
Talk to the team
Better targeting
Start from accounts and contacts that match your ICP.
Cleaner emails
Use verified B2B emails and catch-all validation.
More context
Use company data and job signals to personalize outreach.

Better lists for outbound teams

Founder

“BlitzAPI helps outbound teams move beyond generic lead lists. Find better accounts, identify the right decision makers, enrich contacts, validate emails, and launch campaigns from data your team can trust.”
Portrait of Antoine Blitz
Antoine Blitz
Founder at BlitzAPI

Enrichment chainLive

PERSONEMAILPHONE

Data layer · Continuous

PROFILES550M+

Data volume · Aggregate

DATA METRICLIVE1B+DATA POINTS

Plug BlitzAPI into your stack

“Use BlitzAPI as the API layer behind your Clay workflows, CRMs, internal tools, automations, and custom agents. High-volume playbooks, without per-record anxiety.”

OUTBOUND SPECIALISTS

Find the right contact, verify the address, then send, all through the same infrastructure.

API Docs
TIER 1TIER 2TIER 3BEST MATCH

Frequently asked questions

How accurate are the emails I get from BlitzAPI?

Verified emails are proven against live mail infrastructure before delivery and re-tested at least every 30 days. Addresses we cannot prove come back Not Found instead of a guess, which is what keeps your bounce rate down.

Does BlitzAPI provide phone numbers?

Yes, for US contacts. Phone enrichment focuses on the United States, with an emphasis on mobile numbers for calls and follow-ups, designed for high-value contacts rather than bulk lists. Phone-based endpoints come with the Full plan.

Do I need to be technical to use BlitzAPI?

No. Most outbound teams run BlitzAPI through Clay, n8n, or Make rather than raw code. If you can configure an HTTP call in your workflow tool, you can build lists, enrich contacts, and validate emails.

How much coverage can I expect for my target market?

The data layer spans 550M+ professional profiles and 65M+ companies, with 100M+ job postings powering hiring signals. Start with 1,000 free credits to check coverage on your own ICP before scaling campaigns.

Data shouldn't be
the problem

Grab. Connect. Build.