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Open Source — MIT Licensed — Self-Hosted

Accept Bitcoin
Payments. Zero Fees.

No middleman. No chargebacks. Instant settlement.

The sovereign payment network. Self-hosted Bitcoin infrastructure. Near-zero transaction fees, instant settlement, no chargebacks. The open-source Stripe alternative.

TRANSACTION_FEE
~0%
SETTLEMENT
INSTANT
KYC_REQUIRED
ZERO
arxmint-cli
$ _

Why Merchants Switch

Side-by-side: legacy payment processing vs. self-hosted Bitcoin infrastructure.

Transaction Fees
2.9% + 30¢
~0% (network only)
Settlement
2–7 business days
Instant — direct to your wallet
Chargebacks
Yes — merchant liable
Impossible — payments are final
KYC Required
Full identity verification
Zero
Custody
Stripe holds your funds
Self-custody — your keys, your node
Censorship
Account freezes possible
Uncensorable — you run the infra
Privacy
Stripe sees all transaction data
Ecash blinding — zero visibility

A $10K/month merchant saves ~$320/month in fees alone.

Live in 15 Minutes

Three steps from zero to accepting Bitcoin payments. No DevOps required.

1

Answer Three Questions

Store name, payment methods (Lightning + Ecash), and your domain. The wizard handles everything else.

Store?  Longmont Coffee Co
Accept? Lightning + Ecash
Domain? pay.longmontcoffee.com
2

One Command Deploys

LND node, Cashu mint, hosted checkout page, auto-HTTPS, and LSP liquidity — all from a single Docker command.

$ docker compose up -d
✓ lnd ✓ cashu-mint ✓ checkout
3

Customers Pay, You Receive

Customer scans a QR code, sats land in your wallet instantly, webhook fires to your backend. No intermediary.

PAID 45,000 sats
→ webhook: POST /api/payments
→ status: confirmed

Built on Proven Infrastructure

Fedimint
Cashu
Lightning Labs
Docker
MIT Licensed
Fully open source
Self-Hosted
Your server, your keys
Longmont Pilot
Real-world deployment

One Infrastructure. Four Audiences.

Not another wallet. Private payment rails where merchants, humans, and AI agents share the same infrastructure.

For Merchants

Accept Bitcoin payments with near-zero fees. Self-hosted, non-custodial — you run the node, you keep 100%. Three-question wizard, live in under 15 minutes.

  • ~0% fees vs Stripe 2.9%
  • Self-hosted checkout on your domain
  • Lightning Address + QR for POS

For Communities

Spin a full private economy for your town. One-click Fedimint federation with merchant directory.

  • Prompt-driven creation
  • Three-question wizard deploy
  • 0.2% mint fee community income

For AI Agents

Native Lightning rails via MCP. Agents sell data, buy compute, and transact in sats — no identity, no banks.

  • Lightning Agent Kit
  • L402 paywalls (pay-per-request)
  • MCP server framework

For Humans

Self-custody ecash backed by real BTC. Private transactions inside your community. No surveillance, no KYC, no banks.

  • Silent Payments + CoinJoin
  • Federated e-cash privacy
  • Local merchant directory

Beyond Payments

Wallets aren't economies. Cold storage is step one, not the endgame. Without spending, earning, and trading in Bitcoin, there's no economy — just a savings account reliant on fiat rails.

ArxMint lets you build the next step: a spending layer on top of your savings. Move a fraction of your sats into a federation, pay local merchants in ecash, check cycle dashboards before stacking — while AI agents earn sats overnight selling data via L402 paywalls.

Monday you get paid in sats. Tuesday you buy coffee. Friday you pay the barber in ecash. The loop closes.

The Sovereign Loop

Cold storage stays cold

Your hardware wallet, your keys, untouched

Peg in spending sats

Move a small amount into the federation — like cash from a safe

Sats become ecash

Private, instant, untraceable tokens inside your community

Spend locally

Coffee, haircuts, workshops — sats circulate, economy grows

STATUS: CIRCULAR ECONOMY ESTABLISHED

Native Payment Rails for AI Agents

Agents buy and sell via Lightning. No identity. No API keys from a bank. Just sats.

L402 Protocol Flow

HTTP 402 Payment Required — the missing status code. Agents pay Lightning invoices to access any API endpoint. No accounts, no OAuth — just cryptographic proof of payment.

// Agent requests paid endpoint
GET /api/data/weather
// Server returns 402 + invoice
402 Payment Required
WWW-Authenticate: L402 macaroon="...", invoice="lnbc..."
// Agent pays invoice → gets preimage
// Retries with proof of payment
GET /api/data/weather
Authorization: L402 <macaroon>:<preimage>
200 { data: { ... } }

Lightning MCP Server

Model Context Protocol server for Lightning. Any AI framework — Claude, GPT, local models — can send and receive sats natively.

Ephemeral Agent Wallets

Agents spin up disposable Cashu wallets for each task. Earned ecash flows back to the federation. No persistent identity needed.

Batteries Included

Privacy by Default

We don't just offer privacy as an option. Ecash blinding, silent payment addresses, and spend-path routing are built in from day one.

PRIVACY[ECASH: BLINDED]
ROUTING[SILENT PAYMENTS: ON]

Cycle Intelligence

MVRV, NUPL, and supply-in-profit alerts built into the operator dashboard (price-based approximations via CoinGecko).

One-Wizard Deploy

Three questions. Managed DNS. Auto-HTTPS. LSP liquidity. Your merchant node or community stack — live in under 15 minutes.

Build the Citadel.

Sound money infrastructure for a parallel voluntary economy. Self-hosted. Non-custodial. Unstoppable.

Piloting in Longmont, CO. Grant-eligible: OpenSats, HRF, FBCE.