Use Signup Risk API to evaluate seller registrations before enabling listings, buyer messaging, promotional privileges, or other valuable marketplace access. Get an explainable allow, review, or block recommendation from one server-side API.
200 requests/month · No credit card required
Marketplaces often grant meaningful privileges before a seller has established a track record. A newly created account may be able to publish listings, contact buyers, access promotions, or begin onboarding toward payouts before your team has much context about the registration itself.
Disposable inboxes, placeholder-style identity details, questionable domains, or unusual network context can justify additional review before seller privileges are enabled.
Poor-quality seller accounts can create listing, messaging, moderation, and support problems before a transaction is ever evaluated.
Without a consistent onboarding decision, teams may manually inspect too many seller applications while still lacking structured evidence.
Listings, buyer messaging, promotional access, and payout-related capabilities can all create risk when granted immediately to an unreviewed account.
Add Signup Risk API during seller onboarding before your marketplace enables high-impact account privileges.
Signup Risk API complements KYC, document verification, payment-risk tooling, and marketplace moderation. It evaluates the registration layer before those systems have enough history or transaction data to act.
Send the email address and optionally include the seller’s name and signup IP for additional context.
Signup Risk API evaluates disposable-email usage, domain infrastructure, provider type, role addresses, typo domains, synthetic identity patterns, name alignment, and optional IP reputation.
Use the allow, review, or block recommendation to continue normal onboarding, introduce additional verification or reduced privileges, or stop very-high-risk attempts according to your marketplace policy.
Detect confirmed, likely, and suspicious disposable-email usage that may justify additional scrutiny during seller onboarding.
When a name is supplied, evaluate how well it aligns with the email address and whether the supplied identity appears plausible.
When IP context is available, evaluate network characteristics such as datacenter, VPN, proxy, or Tor usage as one part of the broader onboarding decision. Raw signup IPs are not returned in the API response.
Classify common consumer, business, education, government, and unknown email providers without treating provider type alone as proof of abuse.
Evaluate domain existence and mail-related DNS infrastructure while distinguishing authoritative findings from temporary lookup failures. Checks include MX, SPF, DMARC, and reserved or special-use domains.
Detect known provider-domain typos and guarded near-match domains that may represent mistyped or questionable registration addresses.
Continue normal onboarding when the available evidence contains few meaningful risk factors.
Apply additional verification, reduced initial privileges, manual review, or delayed access to higher-impact seller capabilities when the evidence is uncertain.
Stop very-high-risk registrations before listings, buyer messaging, promotional privileges, or other high-impact marketplace access are enabled.
Use the recommendation directly for a simple onboarding gate, or inspect the check-level evidence to route sellers into custom review and privilege workflows.
The goal is not to treat every unusual seller registration as abuse. It is to avoid granting high-impact marketplace privileges blindly when the available signup evidence justifies additional review or reduced access.
A seller account can create meaningful marketplace impact before it completes a transaction. Listings, buyer communication, promotions, moderation workload, and future payout access can all create cost or trust exposure. Signup Risk API helps you make the onboarding decision before those privileges expand.
Evaluate registrations before enabling listings, buyer messaging, promotional access, or other marketplace capabilities that can create operational or trust risk.
Keep lower-risk sellers moving while reserving additional verification, reduced privileges, or manual review for registrations with stronger risk factors.
Use a consistent risk decision to prioritize seller applications that actually need additional scrutiny instead of manually reviewing every registration the same way.
Signup Risk API recommends allow, review, or block; your marketplace decides how those outcomes affect onboarding, listings, messaging, promotions, or other seller privileges.
Signup Risk API evaluates the registration layer. KYC, document verification, marketplace moderation, payment-risk tooling, and transaction monitoring continue handling the broader controls they are designed for. Use Signup Risk API alongside your existing auth stack (such as Clerk, Auth0, Supabase, Firebase, Cognito, or custom authentication) called from your backend during seller registration before higher-impact marketplace privileges are enabled.
Add Signup Risk API to seller onboarding and start making explainable allow, review, or block decisions before listings, messaging, promotional access, or other high-impact seller privileges are enabled.
200 requests/month · No credit card required
