Build on Bitcoin Cash with OPTN.

Shape, implement, test, and ship BCH products and transaction workflows with a team that has built them firsthand.

Your product or walletThe experience you want to ship
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BCH transaction layerTokens · rules · transaction design
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Ready-to-use integrationWallets, services, and real workflows

Illustrative engineering path

Bitcoin Cash product engineering

Wallet and app integration

Connect BCH products, wallets, applications, and user-facing payment flows.

CashTokens and metadata

Build token-aware experiences with useful asset context and reliable data paths.

Transaction and covenant design

Shape BCH transaction patterns and CashScript workflows around real product requirements.

Testing and release preparation

Exercise failure paths, review integration points, and prepare the product for release.

1
Plan

Define the workflow, threat model, constraints, and outcome you want to reach.

2
Build or review

Work through architecture, implementation, or transaction design.

3
Test and prepare

Test failure paths, review integration points, and get ready for release.

OPTN Wallet

Released self-custody wallet for BCH, CashTokens, and connected apps

Explore Wallet

Covenant workflows

Experience from FundMe.cash contribution, claim, and refund flows

Controlled-payment pilots

WIP pilot exploration for software and AI payment workflows

Explore pilot projects

Explore bounded payment workflows for software and AI agents using BCH and CashTokens.

Explore pilot projects

Build your next BCH product with OPTN.

Tell us what you are creating, where the hard integration points are, and what a successful release should deliver.

Contact us