About PureSignup
PureSignup is a hosted API that checks whether an email address or domain belongs to a disposable email service. One call with Bearer token authentication returns a risk level and the sources that flagged the domain, so a signup form can reject throwaway addresses and keep user data clean.
The site states that its database covers more than 160,000 disposable domains, is monitored for new ones daily and responds in under 80 ms using indexed lookups. Documentation includes curl examples and SDKs, and a try-it box tests any email or domain. A 7-day free trial is offered.
Key features
- Disposable email and domain detection
- Risk level and flagging sources in each response
- Single API call with Bearer token auth
- Fast indexed lookups under 80 ms
- Daily updates to the disposable domain list
- SDKs and curl examples
Good fit for
- Blocking throwaway emails on signup forms
- Cleaning user data from fake registrations
PureSignup: questions and answers
- What is PureSignup used for?
- PureSignup is an email validation API that flags disposable email addresses and domains so apps can block fake signups. It is a good fit for blocking throwaway emails on signup forms and cleaning user data from fake registrations.
- How much does PureSignup cost?
- Paid plans for PureSignup start at $19 per month, and there is no free plan. A free trial is available.
- Is PureSignup open source?
- No. PureSignup is proprietary (closed-source) software and can't be self-hosted. In the API Tools category, open-source options include Nango, CodeChat and Hoppscotch.
- What are some alternatives to PureSignup?
- PureSignup competes with ZeroBounce, NeverBounce and BillionVerify.
Open-source alternatives to PureSignup
See all
Nango
API Tools
Connect your agents & product to 1,000 APIs.
OSSvs Merge★ 13k
CodeChat
API Tools
CodeChat - WhatsApp Api
Apache-2.0vs Twilio★ 1.3k
Hoppscotch
API Tools
Helps you create requests faster, saving precious time on development.
MITvs Postman★ 81k
Insomnia
API Tools
The open-source, cross-platform API client for GraphQL, REST, WebSockets, SSE and gRPC. Wi
Apache-2.0vs Postman★ 40k
Scalar
API Tools
Scalar is an open-source API platform: 🌐 Modern RES
MITvs Postman★ 16k
Mockoon
API Tools
Mockoon is the easiest and quickest way to run mock APIs locally. No remote deployment, no
MITvs Beeceptor★ 8.4k
SaaS alternatives to PureSignup
See all
ZeroBounce
Email Marketing
Email validation and list cleaning service with deliverability tools
SaaS
NeverBounce
Email Marketing
Email list verification service that removes invalid addresses before sending
SaaS
BillionVerify
Email Marketing
Email address verification service with an API and AI agent integration
SaaS
Tempo Checker
API Tools
Detects disposable email addresses before they ruin your signups
SaaS
isDisposable
API Tools
Open-source API platform for detecting disposable email addresses
SaaS
Verify Forge
API Tools
API for real-time email validation
SaaS

