APIs & SDKs
Gemicore
Payments, email, sign-in and webhooks for your apps, hosted or self-hosted
Backend infrastructure providing payments, email, sign-in, webhooks and notifications through a single API, available hosted or self-hosted.
Overview
The Gemicore homepage
Gemicore is a backend platform that provides payments, email, sign-in, signed webhooks, notifications and an admin dashboard through one unified API. You connect your own Stripe, Paystack, Flutterwave or USDC accounts and your own mail server, register each app, and ship.
The platform is available in two deployment options: hosted by Gemicore with usage-based pricing starting from free, or self-hosted on your own server under the Apache 2.0 open source licence with no usage limits.
Gemicore includes support for multiple authentication methods (password, magic link, TOTP, OpenID Connect), cryptocurrency payments via USDC on Base, email delivery over SMTP, and a full admin dashboard. The TypeScript SDK provides a thin typed client over the REST API with no runtime dependencies.
Capabilities
- Multiple payment providers (Stripe, Paystack, Flutterwave, USDC on Base)
- Authentication methods: password, magic link, TOTP, OpenID Connect
- Email delivery over SMTP
- Admin dashboard
- Signed webhooks with dead letter queue
- Notifications system
- TypeScript SDK with no runtime dependencies
- Realtime payment status updates
- Multi-app support with isolated keys and data
- Usage monitoring and plan limits
Pricing
Pricing model: Freemium
Self-host: Free (Apache 2.0). Hosted: Free ($0/month, 2 apps, 50,000 API requests/month, 10,000 webhook deliveries/month); Starter ($19/month, 3 apps, 500,000 API requests/month, 50,000 webhook deliveries/month); Pro ($49/month, 5 apps, 2,000,000 API requests/month, 250,000 webhook deliveries/month)
Follow Gemicore to get an email when they post a milestone, ship a new product or add a demo video.
Gemicore fact sheet
| Community votes | 0 |
|---|---|
| Website | gemicore.com |
Gemicore metrics
Vendor metrics for gemicore.com: Ahrefs Domain Rating and Majestic link data, with the delta since the last review.
- Domain Rating
- 0
- no change since last check
- Trust Flow
- 0
- no change since last check
- Citation Flow
- 0
- no change since last check
- Referring domains
- 0
- no change since last check
- External backlinks
- 0
- no change since last check
Vendor Domain Rating (Ahrefs) checked 12 Nov 2026, spec changed 10 Nov 2026. Vendor Majestic data checked 10 Nov 2026, spec changed 10 Nov 2026. Link metrics supplied by Majestic. Trust Flow, Citation Flow and Topical Trust Flow are trademarks of Majestic-12 Ltd.
Gemicore vendor domain
Open the vendor record
We read this from the registry's RDAP record on 12 Nov 2026, 02:30 UTC.
- Domain age
- 4 months
- Registered
- Expires
- Registrar
- HOSTINGER operations, UAB
- DNSSEC
- Not signed
Gemicore post-launch report
| Measure | At launch, then latest |
|---|---|
| Domain Rating (Ahrefs) | 0 to 0 no change since launch 10 Nov 2026, then 11 Nov 2026 |
| Trust Flow (Majestic) | 0 first measured 10 Nov 2026 |
| Referring domains (Majestic) | 0 first measured 10 Nov 2026 |
Day 1 since launch. Next receipt: day 30, 10 Dec 2026. Many things move these figures, so a change is not proof of cause. Only stored readings are shown.
About to launch?
Plan your launch with our free playbook, from preparing your listing to choosing more launch directories.
- The week before
- On the day
- Week one
- Beyond launch
Buyer questions
Can I sign up now?
Yes. You can start on the free plan with no card needed.
Is Self host limited?
No. Self host has the same features with no limits from Gemicore. Your server sets the limits.
Who runs what in the self-hosted vs hosted options?
In self-host, you run the server, Postgres, Valkey and backups. In hosted mode, Gemicore does. Either way, your apps use your own payment and email accounts.
Leave a review for Gemicore
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Gemicore has a free listing. The owner can unlock the full profile with a paid launch for $5:
- Founder story (locked)
- Milestones (locked)
- Demo video (locked)
- Dofollow website link (locked)
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