Crypto On-Ramp API & Integration Tools

Meso's Crypto On-Ramp API enables Web3 applications to embed fiat-to-crypto conversion directly into their products — with no redirects, no third-party handoffs, and no compliance overhead for partners.

Product Overview

Built by fintech veterans from PayPal, Venmo, Apple, and Braintree, Meso provides the infrastructure layer for fast, low-fee fiat-to-crypto and crypto-to-fiat conversion. The platform supports Ethereum, Solana, Base, Bitcoin, Polygon, Arbitrum, and Optimism in a single integration, with payment methods including debit cards, Apple Pay, and ACH transfers. Transfers complete in under 25 seconds from payment to tokens in the user's wallet — with 15%+ higher success rates than industry competitors.

Key Features

• Transfers API: Instant bank and card transfers to crypto wallets with near-instant settlement and industry-leading low fees
• Identity API: Custom KYC identity capture flows using your own UI while Meso handles sensitive data and compliance
• Fraud Detection: Real-time ML-powered fraud checks that block bad actors while minimizing false positives
• mesOS Compliance Engine: Real-time transaction monitoring, automated KYC/AML, regulatory reporting automation, and custom risk scoring
• Developer SDKs: Full API integration for complete UX control or a standalone hosted on-ramp for rapid deployment

Use Cases

Meso powers crypto wallets enabling single-click card funding, exchanges enabling seamless USD-to-token conversions, and peer-to-peer apps building cross-border payment products on crypto rails. Notable integration partners include Phantom, MarginFi, and Tiplink. Currently available in the US and EU.