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CoinPay

We offer consulting services and a stripe support payment gateway with a good DX

Fintech · Founded 2026 · United States

Fintech
Crypto & Web3

Visit coinpayportal.com ↗Founder interest ↓

Can you vibecode this?

Kinda

The API, escrow logic, and wallet CLI ship as code. What takes real effort is running on-chain monitors across 10+ chains, a background finalization daemon, an on-chain indexer, and multisig escrow settlement — each must be right before anyone trusts it with money.

Build This with Leapd →

The business

Total revenue

$55K+

Verified recently

Monthly revenue

$15K+/mo

↑ Growing · 60-day average

Peak month

~$40K

Best single month

Growth

~1631×

Early months vs recent

Profit margin

For owners

Own CoinPay? List it for sale.

Founders read this page looking for a business to build like your $15K+/mo one — some would rather buy one that already works. They skip the line, you get a clean exit. $25 one-time, no commission.

Why it works

Value proposition
One API for crypto payments, trustless escrow and non-custodial wallets.
Problem
Integrating crypto payments and escrow without a central authority holding funds.
Audience
Businesses, freelancers and AI agents that need to send or receive crypto.
Business model
Free tier at 1% per transaction; $49/month Professional at 0.5%; Enterprise at custom pricing.

Good to knowFree planWHMCSWooCommerceFOSSBillingMIT licensedTor network

Can you vibecode this?

Kinda

Moat

Proprietary technology & IP
Switching costs

Why people pay CoinPay

CoinPay has built open-source, MIT-licensed multi-chain infrastructure including x402 protocol support, non-custodial wallet logic, trustless escrow, and a DID reputation system. Businesses that integrate the API, CLI, plugins, and escrow workflows accumulate transaction history and reputation scores that do not transfer to a fresh competitor.

Product complexity
Moderate
A REST API, web wallet, escrow engine, DID reputation system and AI agent skill file are all standard web app work.
Data
Moderate
Live on-chain data across ten blockchains must be indexed and monitored continuously via public node APIs.
Integrations & infrastructure
Moderate
Bitcoin, Ethereum, Solana, Polygon, BNB Chain, XRP, Cardano, Dogecoin, Bitcoin Cash and Lightning network connections are needed.
Human operations
Low
The platform is API-driven and automated; no human staff are required to process payments or escrows.
Regulation / hardware
High
Forwarding and holding crypto funds on behalf of users triggers money transmission licensing in most jurisdictions.

Build this business

Use the build specification below with any AI coding tool, or build it directly with Leapd.

Build This with Leapd →

Leapd builds

REST API, web wallet, escrow engine and DID reputation dashboard
Subscription and per-transaction fees with Stripe
Bitcoin, Ethereum, Solana, Polygon, BNB Chain, XRP, Cardano, Dogecoin and Lightning connections
A landing page

Leapd runs

Cold email outreach to potential customers
Meta ads
LinkedIn and X posts
SEO and AI-search visibility
A daily report of what shipped

Opportunity check

Passes: Proven market: $15K+/mo already paid for it
Passes: Proven model: Free at 1% per transaction; $49/month Pro at 0.5%; Enterprise custom
Passes: Proven need: Developers need crypto payments without custody
Partly: Buildable: Leapd builds the product; the rest is months of work, or an approval you hold

build-spec.txt

Build a crypto payment gateway sold as a subscription and per-transaction SaaS, with a REST API, non-custodial web wallet, trustless escrow and decentralized identity reputation system.

Product:
- Merchant accounts with API key management and a customer dashboard showing payment and escrow history
- REST API for creating payments, checking status and receiving webhook notifications with HMAC-SHA256 signatures
- Trustless escrow engine: create escrow with deposit address and two role-specific auth tokens, release or dispute flow with built-in arbiter support
- Non-custodial web wallet: wallet keys generated and stored in the browser, balance checks and send/receive across supported chains
- AI agent skill file at /skill.md so agents can create wallets, send payments and manage escrows autonomously
- Decentralized identity (DID) system: claim a did:key identity, build a 7-dimension trust score from completed transactions and port reputation across platforms
- On-chain deposit monitor: auto-detect incoming transactions and update payment and escrow status in real time
- API docs and CLI reference

Billing:
- Starter free plan at 1% per transaction (up to 100 transactions/month); Professional at $49/month with 0.5% per transaction and unlimited volume; Enterprise at custom pricing, all charged with Stripe.

Integrations:
- Bitcoin, Bitcoin Cash, Ethereum, Solana, Polygon, BNB Chain, Dogecoin, XRP, Cardano and Lightning Network connected through their public node and indexer APIs using the operator's own credentials.

Data:
- Live on-chain transaction and balance data for all supported blockchains, fetched through public blockchain node and indexer APIs.