Category
Enrichment - Contact
Rating
4.6/5 (300 Reviews)
Availability
HQ
Paris, France
Pricing
From $399/mo
Free tier
No
Best for
Also in
Capabilities
Contact enrichment scope
What is Blitz API?
Blitz API is a developer-first B2B data service - contact enrichment, email verification, phone enrichment, and people and company search delivered through a REST API rather than a self-serve interface. It is priced as a flat monthly subscription with unlimited requests, positioning it as an affordable data layer behind custom enrichment builds. For a staffing agency, it is not a tool a recruiter opens; it is the infrastructure a technical team wires into a workflow - a Clay waterfall, an internal script, or a no-code automation - to enrich candidate or prospect data at scale. Its catch-all email validation and flat pricing are the draw; the trade-off is that it needs building around.
What are Blitz API's key features?
Developer API only; no app, dashboard or browser extension to log into.
Work emails only, no direct emails, and mobile coverage is US-only.
Waterfall ICP Search cascades title priorities to return one decision-maker.
Flat-rate unlimited plans; email and phone enrichment sit on higher tiers.
Official Python and TypeScript SDKs, plus Clay, n8n and Make integrations.
How do staffing agencies use Blitz API?
- Map a list of client-target companies to the one hiring manager who matters.
- Enrich BD lists inside Clay or n8n by calling the API, not a UI.
- Convert a client's domain to a LinkedIn company URL, then pull its employees.
Who is Blitz API best for?
- Agencies with a developer or an automation platform already in place.
- US-focused BD teams, since phone coverage stops at the US border.
- Not for recruiters who look up contacts by hand; there is no UI.
What are Blitz API's pros and cons?
Pros
- Flat monthly, unlimited-request pricing is cost-effective at high volume.
- API-first design fits cleanly into Clay, no-code tools, and custom scripts.
- Catch-all email validation aimed at protecting deliverability.
- Broad B2B coverage (380M+ contacts, 60M+ companies per Blitz).
Cons
- It is infrastructure, not an app - there is no recruiter-facing UI, so it needs a build or a no-code workflow around it.
- Phone coverage is US-only, limiting international outreach.
- New, unproven brand with little independent review history, so coverage claims are worth testing.
- GDPR compliance is stated by the vendor but not independently verified here; diligence it before using EU personal data.
- No official MCP server - AI access is via the REST API or a generic HTTP wrapper.
What are people saying about Blitz API?
Blitz API holds 4.6/5 across 300 G2 reviews.
Consolidated from 300 reviews across G2 · Updated August 2, 2026
How does Blitz API compare to alternatives?
| Feature | Blitz API | Apollo |
|---|---|---|
| Category | Enrichment - Contact | Enrichment - Contact |
| AI-first | ||
| API | ||
| MCP | ||
| GDPR | ||
| Best for | Agency | Agency, In-House |
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Frequently asked questions about Blitz API
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