Head-to-head · B2B data

Blitz API vs ContactOut

ContactOut wins 18 of 30 decided metrics across 4 shared suites; the loser still leads where its column is highlighted. Same frozen test sets, same run; the better value in each row is highlighted.

Blitz API

API-first GTM data over 1B+ records (550M+ professional profiles, 100M+ job postings): ICP search, people, company and job search, employee finder and enrichment, with MCP.

No public reviews

Access: MCP · API

ContactOut

Contact data for recruiting and sales: browser extension, search / enrichment and API, personal and work emails.

★ 4.5 · 128 reviewsB

Access: MCP · API · CSV · Batch · Webhooks · Integrations

Email Datacore + suite-specific metrics

updated 2026-09-25

Metric	Blitz API · #15 of 29	ContactOut · #14 of 29
Match rate	57.1%	69.4%
Valid email rate	67.9%	64.7%
Latency p50	297ms	1,024ms
Cost / valid email	$0.154	-
Invalid rate	0.0%	11.8%
Catch-all share	32.1%	20.6%
Business email	100.0%	100.0%
Right-person rate	100.0%	94.1%
Decoy hit rate	-	0.0%
Catch-all detection	-	71.4%
Confidence-score quality	-	+63.5 pts
Geographic coverage	7	9

Phone Datacore + suite-specific metrics

updated 2026-09-25

Metric	Blitz API · #23 of 24	ContactOut · #9 of 24
Match rate	34.7%	85.7%
Valid / reachable rate	76.5%	73.8%
Latency p50	348ms	490ms
Cost / mobile number	$0.226	-
Right-person rate	78.6%	88.5%
Mobile coverage	26.5%	55.1%
Disconnected rate	0.0%	7.1%
Low-activity share	23.5%	19.0%
Landline / mobile classification	-	-
Country accuracy	100.0%	83.3%
Geographic coverage	4	9

People Datacore + suite-specific metrics

updated 2026-09-25

Metric	Blitz API · #16 of 24	ContactOut · #11 of 24
Profile match rate	91.8%	91.8%
Identity accuracy	93.3%	97.8%
Latency p50	294ms	898ms
Price / matched profile	$0.054	-
Current employer accuracy	95.6%	97.8%
Move detection	-	75.0%
Decoy hit rate	-	0.0%
Job title accuracy	86.7%	86.7%
Seniority label accuracy	-	81.6%
Location accuracy	86.7%	95.6%
Work history completeness	7.7	8.2
Education completeness	100.0%	100.0%
Skills present	22.2%	91.1%
Social / profile URLs	100.0%	100.0%
Coverage by geo / function / seniority	75.0%	80.0%

Company Datacore + suite-specific metrics

updated 2026-09-25

Metric	Blitz API · #15 of 23	ContactOut · #11 of 23
Domain-to-company match rate	97.0%	97.0%
Company name accuracy	94.8%	95.9%
Latency p50	522ms	707ms
Price / matched company	$0.051	-
Industry accuracy	78.4%	77.3%
Employee count ±20%	26.0%	26.0%
HQ / location accuracy	82.5%	93.8%
Description present	96.9%	96.9%
Founding year accuracy	60.8%	69.1%
Domains / social profiles	97.9%	100.0%
Coverage by country / size	94.3%	90.0%

Jobs Datacore + suite-specific metrics

updated 2026-09-25

Metric	Blitz API · #5 of 6	ContactOut · not in suite
Employer coverage	91.7%	-
Postings recall	73.2%	-
Latency p50	2,143ms	-
Cost / job	$0.019	-
Closed or unknown postings	71.2%	-
Duplicate postings	22.2%	-
Location accuracy	93.1%	-
Posted-date accuracy	58.4%	-
Description present	0.0%	-
Coverage by country	88.9%	-

Technographic Datacore + suite-specific metrics

updated 2026-09-25

Metric	Blitz API · not in suite	ContactOut · #7 of 10
Coverage	-	85.0%
Detection accuracy	-	35.5%
Latency p50	-	707ms
Cost / lookup	-	-
Live stack recall	-	37.1%
Technologies per domain	-	80
Dated results	-	0.0%
Coverage by geo / size	-	70.0%

Questions about Blitz API vs ContactOut

Which is better, Blitz API or ContactOut?

ContactOut wins 18 of the 30 metrics decided between them, across 4 benchmarks that measured both. Leaderboard ranks: Email Data: Blitz API #15 of 29, ContactOut #14 of 29; Phone Data: Blitz API #23 of 24, ContactOut #9 of 24; People Data: Blitz API #16 of 24, ContactOut #11 of 24; Company Data: Blitz API #15 of 23, ContactOut #11 of 23.

How do Blitz API and ContactOut compare in user reviews?

Blitz API has no public reviews on G2, Capterra, TrustRadius or Trustpilot; ContactOut holds 4.5 / 5 across 128 reviews on G2 and Capterra. Ratings belong to their platforms and play no part in the benchmark grades.

How can you get data out of Blitz API and ContactOut?

Blitz API offers an MCP server and an API; ContactOut offers an MCP server, an API, CSV export, batch endpoints, webhooks and native integrations. Both offer an MCP server and an API.