Snapshot
Continue to About ↓- What it does
- Prelude is an onboarding and trust infrastructure platform that verifies signups, mainly by phone number and email, and screens them for fraud before any costly verification message is sent.
More detail
- It combines device, network and carrier signals into a single onboarding decision and then helps keep authenticated sessions trusted.
- A developer-facing REST API and SDKs sit alongside a dashboard and an optional authentication and transactional messaging suite.
- Best for
- Consumer apps and developer teams with high signup volume or SMS-pumping exposure that want one API to verify users, block fake signups before message cost is incurred, and authenticate sessions across 230+ regions.
- Pricing
- Charged per verification plus passed-through message costs.
More detail
- Pay As You Go is €0.032 per verification plus message costs
- Startup is €360/month plus message costs with a custom sender ID, Slack support, advanced antifraud and 6 months data history
- Enterprise is custom committed-volume pricing with a
- Main limitation
- Buyers who only need a cheap raw SMS pipe with no verification layer, or non-developer teams that require a no-code setup.
More detail
- Buyers needing fully published per-country message rates up front will have to request country-level pricing.
- Record
- Living and monitored
- Reviewed
- Evidence
- Public web research
- Machine access
- Structured profile ↗
About
- Prelude is an onboarding and trust infrastructure platform that verifies signups, mainly by phone number and email, and screens them for fraud before any costly verification message is sent.
- It combines device, network and carrier signals into a single onboarding decision and then helps keep authenticated sessions trusted.
- A developer-facing REST API and SDKs sit alongside a dashboard and an optional authentication and transactional messaging suite.
What it helps with
- SMS pumping and toll fraud that inflate verification bills
- Bots, fake accounts, scammers and scalpers at signup
- Failed or slow one-time passcode delivery across regions
- Verification signals that are discarded once a user logs in
- Fragmented verification, fraud and authentication vendors
- High messaging costs passed through from carriers
- Limited visibility into delivery and verification outcomes
Capabilities
A practical view of what is available and where limitations apply.
| Offering | Available | Detail |
|---|---|---|
| Multi-channel OTP verification | Yes | One-time passcodes sent over SMS, WhatsApp, RCS, Voice and Email across 230+ regions; the vendor claims 95% successful verifications. |
| Pre-send fraud screening | Yes | Signals are checked before a message is sent so fraudulent requests are blocked before cost is incurred. |
| Device and network signals | Yes | Network fingerprinting at the edge and device ID correlation feed the onboarding decision. |
| Authentication and sessions | Yes | Signup, login, social and password flows in one API with device binding and risk-based step-up; includes DPoP, PKCE and SAML SSO. |
| Phone-number intelligence | Yes | Checks reachability, line type, portability and carrier before sending. |
| Transactional messaging | Yes | Notify sends transactional messages on the same delivery rails, with smart routing and channel fallback. |
| No-code setup | No | Integration is code-first via REST API and SDKs, though a dashboard supports day-to-day configuration. |
| Independent third-party reviews | Unknown | No independent reviews or ratings were found in the supplied evidence; vendor comparison content is first-party. |
| Published per-country message rates | Limited | Only a six-country sample is shown; full country-level rates are available elsewhere and enterprise pricing is quoted. |
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Evidence
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- Verification
- Scribble researched these facts from the linked public sources.
- The owner has not manually confirmed every field.
- Last reviewed
- Primary source
- prelude.so
Technical profile details
Record ID
790aa96a-17a7-4661-9c0b-398c57851174Canonical URLhttps://profiles.scribble.network/listing/prelude-790aa96a