Now accepting builder applications

Build on HealChain.
Earn 40% of every dollar.

We built permanent, self-healing, verifiable blockchain storage. You build the front-end for your audience. We split the revenue — yours is pure profit, ours covers infrastructure.

How It Works

Simple, transparent, no gotchas.

1. You Build

Create a clean website or app for your audience. We provide the API, docs, and a starter API key.

2. Users Store

Your users store documents through your interface. We handle storage, oracles, verification, and ZK proofs.

3. Revenue Flows

Each store generates a fee. 40% is yours. We keep 60% to cover oracle costs, infrastructure, and development.

4. You Get Paid

Monthly payouts via Stripe or crypto. Your earnings grow with your user base — no cap, no ceiling.

The Numbers

What 40% of net revenue actually looks like.

Small Scale
$79/month
100 users × $1.99/store
Total revenue$199.00
Stripe fees (~17%)$34.00
Net revenue$165.00
Your 40%$66.00
Our 60% (infrastructure)$99.00
We pay oracle gas, IPFS, Arweave, servers. Your cut is pure profit.
Growing
$660/month
1,000 users × $1.99/store
Total revenue$1,990.00
Stripe fees (~17%)$338.00
Net revenue$1,652.00
Your 40%$660.80
Our 60% (infrastructure)$991.20
Scales linearly. No revenue ceiling.
At Scale
$6,608/month
10,000 users × $1.99/store
Total revenue$19,900.00
Stripe fees (~17%)$3,383.00
Net revenue$16,517.00
Your 40%$6,606.80
Our 60% (infrastructure)$9,910.20
Plus optional: run your own oracle for a % of infra cost savings.

Best Opportunities Right Now

Real audiences with real document storage needs — and no one serving them yet.

Nurses & Healthcare Workers

4.3M registered nurses in the US alone. Licenses, certifications, CPR cards — all need permanent, verifiable storage. Employers verify before every hire.

High volume · Recurring stores
CDL Drivers & Truckers

3.5M truckers. CDL licenses, DOT medical cards, insurance certificates, logbook records. Carriers and DOT inspectors need fast verification at every stop.

Compliance-driven · Expiry reminders
Independent Artists & Musicians

Copyright timestamping, release documentation, licensing records. Faster and cheaper than the US Copyright Office. Essential before label deals.

Large audience · Emotional product
Small Businesses

Invoices, compliance records, contracts, receipts. SOX, HIPAA, and MiFID II require 7-25 year retention. Permanent blockchain storage solves this cheaply.

B2B · High LTV · Compliance angle
Insurance Documents

Policy documents, claims records, certificates of insurance. Individual agents can offer permanent storage as a value-add to clients without technical knowledge.

Agent-friendly · No-code forms
Precious Metals & Collectibles

Gold, silver, rare coins, high-value collectibles stored with Brinks or similar vaults. Permanent chain-of-custody records with ownership transfers. RWA play.

High value · RWA adjacent
Future High-Value Markets
🏠 Property Deeds & Title Records 📜 Professional Certifications 🏛️ County & Municipal Records 💊 Pharmaceutical Compliance ⚖️ Legal Documents & Contracts 🏦 RWA Documentation 🌿 Supply Chain Provenance

Advanced: Run Your Own Oracle

High-volume builders can run a dedicated HealChain oracle node. Your oracle fulfills your users' storage requests directly, reducing your infrastructure dependency on us. You pay oracle operating costs (ETH gas, server) as a business expense — potentially tax-deductible — and in return earn a greater share of revenue since we're not covering your fulfillment costs.

Oracle nodes require a subscription with HealChain (generating recurring revenue for us) plus staking the oracle wallet with native tokens on your target chains. Some builders view this as a strategic position: oracle wallet holdings in ETH, AVAX, BNB, and MATIC are business assets that may appreciate.

Interested in the oracle option? Mention it in your application below.

What We Provide

Full API Access

REST API, JS + Python SDKs, docs, examples

API Key

Dedicated key with usage tracking per builder

Starter Templates

Ready-to-deploy HTML pages for common use cases

Builder Support

Direct access to the HealChain team

Developer Docs

One API Call. Permanent Storage.

Store any document permanently on-chain with a single POST request. Your users pay $1.99 — you keep 40%.

POST /vault/store Store a record permanently
{
  "documentType": "nursing_certificate",
  "documentId": "RN-2026-123456",
  "issuerName": "Maine State Board of Nursing",
  "subjectName": "Jane Smith RN",
  "effectiveDate": "2026-01-15",
  "paymentIntentId": "pi_stripe_or_hcp_crypto",
  "vertical": "nurses",
  "data": { "licenseNumber": "RN-123456", "state": "ME" },
  "metadata": { "source": "yournursingapp.com" }
}
Returns: {"recordId": 42, "txHash": "0x..."}
POST /stripe/create-payment-intent Initialize card payment
{
  "vertical": "nurses",
  "metadata": { "source": "yournursingapp.com" }
}
Returns: {"clientSecret": "pi_...", "publishableKey": "pk_live_..."}
GET /retrieve?id={recordId} Retrieve any record — no auth required
Returns: full record metadata, tx hash, timestamp, ZK proof
Authentication
X-API-Key: hc_your_api_key_here

Include your API key in every request header. Your key is tied to your revenue share account — all earnings tracked automatically.

Apply to Build

Free to join. We review applications within 48 hours.

Or email us directly: hello@healchain.org

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