OmniCheck: Universal Username Availability API

Social Freemium View on RapidAPI ↗

OmniCheck is the industry-leading OSINT tool for real-time, concurrent username availability checks. It scans major social, developer, and gaming platforms in milliseconds using zero-cost status verification. Perfect for user onboarding, digital brand protection, and security researchers.

14 subscribers
9/10 popularity
2357 ms avg latency
100% success rate
2 endpoints
The in-depth APIMemo review for this API hasn't been published yet — the data below comes straight from the public marketplace listing.

OmniCheck: Universal Username Availability API endpoints

MethodEndpointDescription
check
GET /check
/check 		Checks if a specific username is taken or available across all supported platforms concurrently.
health
GET /health
/health

OmniCheck: Universal Username Availability API pricing

PlanPriceRate limitQuotas
BASIC Free —
  • Requests: 100 / monthly
PRO $4.99 / month —
  • Requests: 1,000 / monthly (then $0.0030 each)
ULTRA $9.99 / month —
  • Requests: 10,000 / monthly (then $0.0030 each)
MEGA $29.99 / month —
  • Requests: 100,000 / monthly (then $0.0030 each)

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