Mileston

Mileston is a developer-focused payment platform built to make crypto and stablecoin payments as easy to integrate as traditional payment processors. Founded in October 2022, the team set out to solve a practical problem: accepting cryptocurrency in a business context typically means redirecting customers away from your site, waiting days for settlement, and managing volatile asset exposure. Mileston replaces that friction with an embedded checkout experience, instant USDC settlement, and a lightweight SDK that can be wired into an existing application in minutes.

What Mileston Does

At its core, Mileston is a payment abstraction layer. Merchants and developers connect once to the Mileston API, and the platform handles the blockchain-side plumbing — wallet detection, transaction confirmation, stablecoin settlement — while the customer-facing experience stays on the merchant's own site inside a branded pop-up checkout window.

The platform targets three distinct user profiles:

E-commerce and SaaS businesses that want to accept digital currencies without building blockchain infrastructure. Through Mileston's no-code dashboard, a merchant can generate a payment link and start collecting crypto without writing a single line of code.

Developers who want full control via SDKs. The mileston-payments npm package (TypeScript/JavaScript) exposes three primary abstractions: PaymentLink, Invoice, and RecurringPayment. Each class maps to a set of CRUD operations against the Mileston API, allowing developers to create, retrieve, update, and delete payment records programmatically. A companion package, mileston-payment-client, provides embeddable UI button components pre-built for React, Angular, Vue, and plain JavaScript — handling the checkout popup lifecycle, callback events, and DOM cleanup without requiring developers to build their own interface layer.

Freelancers and marketplaces that need to send and receive cross-border payments. Mileston positions its invoice and payout tooling for global payments scenarios where traditional banking rails are slow, expensive, or unavailable to one party.

Settlement and Stablecoin Model

The centerpiece of Mileston's value proposition is automatic USDC settlement. When a customer pays, the merchant receives the equivalent in USDC (or EURC) rather than holding a volatile cryptocurrency position. Settlement is described as immediate — the funds are accessible as soon as the transaction confirms, with no two-to-three day batch settlement windows common in traditional merchant acquiring.

Mileston is a Circle Alliance partner, reflecting integration with Circle's USDC and EURC infrastructure. The Circle partnership gives Mileston access to stablecoin rails across multiple networks and positions the product within Circle's broader ecosystem of stablecoin-native payment services.

Supported Networks and Technical Architecture

According to Mileston's Circle Alliance listing, the platform supports payments across Arbitrum, Avalanche, Base, Ethereum, and Noble (the Cosmos-based chain built specifically for native USDC issuance). The SDK itself is blockchain-agnostic from the developer's perspective: the application sends API calls to Mileston's backend, and the network-level transaction handling occurs server-side. The client SDK's only external dependency is axios, keeping the integration footprint minimal.

This architecture means a developer integrating Mileston does not need to manage wallet connections, gas estimation, or chain-specific transaction signing directly. The complexity is abstracted behind a REST API that accepts standard HTTP requests with an API key and business ID.

Product Offerings

Mileston offers three core payment primitives:

• Payment Links: Shareable URLs that trigger the checkout popup. Useful for one-time payments, donations, or situations where a full checkout integration is impractical.
• Invoices: Structured billing documents with line items, due dates, and customer details. These support the freelancer and B2B use cases where a formal payment record is required.
• Recurring Payments: Subscription management with configurable billing intervals measured in days. Useful for SaaS platforms charging monthly or annual fees in stablecoins.

The embedded checkout popup is a key differentiator. Rather than redirecting to a third-party payment page — a pattern that tends to reduce conversion and break the user experience — Mileston's popup keeps the customer on the merchant's domain throughout the transaction flow, with branding customizable to match the host application.

Team and Background

Mileston's GitHub organization includes repositories for the SDK, the payment client component library, documentation, and the business website. The business website repository was last updated in July 2026, indicating ongoing development activity. The project's documentation site has been catalogued by search engines and contains best-practices guides for SDK integration, though the domain has experienced intermittent DNS resolution issues.

The project received a Product Hunt listing in 2025 where it was described as providing "native crypto and stable coin payments for your business," with an embedded checkout as the primary product highlight.

Position in the Payments Ecosystem

Mileston competes in a growing category of stablecoin payment infrastructure providers targeting developers and small-to-medium businesses that want to accept digital currencies without running their own blockchain nodes or managing key infrastructure. The platform's API-first design and multi-framework client component library place it alongside developer-centric payment tools that prioritize integration speed over feature breadth.

The Circle Alliance membership situates Mileston within a partner network that includes custody providers, on/off-ramp services, and compliance tooling, giving merchants a clearer path to the broader USDC ecosystem if they need to extend beyond Mileston's core payment primitives.

For teams exploring crypto-native billing — particularly those already familiar with Stripe's developer experience — Mileston offers an analogous interface for stablecoin payments: straightforward API keys, typed SDK classes, and a managed checkout flow that handles the blockchain complexity in the background.