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Online Notary (RON) Provider Research — July 2026

Recommendations

Primary: OneNotary

  • Trustpilot: 5.0/5.0 from 3,222 reviews
  • API: Full developer portal at dev.onenotary.us
  • Security: SOC 2, ISO 27001, MISMO certified
  • Notaries: 45,000+ including Texas-licensed
  • 24/7: Yes
  • Cost: $0/mo pay-as-you-go at $25/session
  • Monthly plan: ~$49-65/mo (lowers per-signer rate)

Secondary: BlueNotary

  • Monthly plan: $37/mo Business Pro (2 docs included)
  • Per additional: ~$10-15
  • Best for: 3+ documents/month (cheaper than OneNotary at that volume)

DO NOT USE

  • OnlineNotary.net — 33 reviews vs claimed 1,500+, no BBB, "Medium-Risk" scam detector, no public API docs, 9AM-2AM only, no phone support
  • Proof.com Premium — API locked to Premium tier (cost unknown, sales-gated)

Integration Path

  1. Phase 1 (first 20 claims): Manual — email client a OneNotary link, they notarize in ~15 min via browser
  2. Phase 2 (50+ claims): Contact OneNotary sales for API docs → embed in DRE portal