Head-to-head · B2B data

Blitz API vs Coresignal

Blitz API wins 18 of 25 decided metrics across 3 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

Coresignal live

Structured public-web B2B datasets (employees, companies, jobs) with API, MCP and agentic search, a real-time employee endpoint that fetches at request time, and gated contact enrichment.

★ 4.8 · 12 reviewsA

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

Email Datacore + suite-specific metrics

updated 2026-09-25

Metric	Blitz API · #15 of 29	Coresignal · #27 of 29
Match rate	57.1%	55.1%
Valid email rate	67.9%	37.0%
Latency p50	297ms	928ms
Cost / valid email	$0.154	$0.654
Invalid rate	0.0%	25.9%
Catch-all share	32.1%	33.3%
Business email	100.0%	100.0%
Right-person rate	100.0%	100.0%
Decoy hit rate	-	0.0%
Catch-all detection	-	11.1%
Confidence-score quality	-	-16.7 pts
Geographic coverage	7	3

Phone Datacore + suite-specific metrics

updated 2026-09-25

Metric	Blitz API · #23 of 24	Coresignal · not in suite
Match rate	34.7%	-
Valid / reachable rate	76.5%	-
Latency p50	348ms	-
Cost / mobile number	$0.226	-
Right-person rate	78.6%	-
Mobile coverage	26.5%	-
Disconnected rate	0.0%	-
Low-activity share	23.5%	-
Landline / mobile classification	-	-
Country accuracy	100.0%	-
Geographic coverage	4	-

People Datacore + suite-specific metrics

updated 2026-09-25

Metric	Blitz API · #16 of 24	Coresignal · #5 of 24
Profile match rate	91.8%	98.0%
Identity accuracy	93.3%	97.9%
Latency p50	294ms	928ms
Price / matched profile	$0.054	$0.133
Current employer accuracy	95.6%	93.8%
Move detection	-	100.0%
Decoy hit rate	-	0.0%
Job title accuracy	86.7%	77.1%
Seniority label accuracy	-	82.1%
Location accuracy	86.7%	95.8%
Work history completeness	7.7	7.0
Education completeness	100.0%	87.5%
Skills present	22.2%	95.8%
Social / profile URLs	100.0%	100.0%
Coverage by geo / function / seniority	75.0%	83.3%

Company Datacore + suite-specific metrics

updated 2026-09-25

Metric	Blitz API · #15 of 23	Coresignal · #19 of 23
Domain-to-company match rate	97.0%	97.0%
Company name accuracy	94.8%	93.8%
Latency p50	522ms	1,039ms
Price / matched company	$0.051	$0.133
Industry accuracy	78.4%	78.4%
Employee count ±20%	26.0%	27.4%
HQ / location accuracy	82.5%	80.4%
Description present	96.9%	97.9%
Founding year accuracy	60.8%	59.8%
Domains / social profiles	97.9%	97.9%
Coverage by country / size	94.3%	94.3%

Jobs Datacore + suite-specific metrics

updated 2026-09-25

Metric	Blitz API · #5 of 6	Coresignal · not measured
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	Coresignal · #8 of 10
Coverage	-	86.0%
Detection accuracy	-	32.1%
Latency p50	-	1,039ms
Cost / lookup	-	$0.150
Live stack recall	-	14.6%
Technologies per domain	-	51
Dated results	-	100.0%
Coverage by geo / size	-	75.0%

Questions about Blitz API vs Coresignal

Which is better, Blitz API or Coresignal?

Blitz API wins 18 of the 25 metrics decided between them, across 3 benchmarks that measured both. Leaderboard ranks: Email Data: Blitz API #15 of 29, Coresignal #27 of 29; People Data: Blitz API #16 of 24, Coresignal #5 of 24; Company Data: Blitz API #15 of 23, Coresignal #19 of 23.

Which is cheaper, Blitz API or Coresignal?

Measured on the list price of each provider's central self-serve pack, divided by what it actually returned: Email Data, cost per valid email: Blitz API $0.154, Coresignal $0.654; People Data, price per matched profile: Blitz API $0.054, Coresignal $0.133; Company Data, price per matched company: Blitz API $0.051, Coresignal $0.133.

How do Blitz API and Coresignal compare in user reviews?

Blitz API has no public reviews on G2, Capterra, TrustRadius or Trustpilot; Coresignal holds 4.8 / 5 across 12 reviews on Datarade. Ratings belong to their platforms and play no part in the benchmark grades.

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

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