# 0xramp ## Docs - [0xramp: Non-Custodial Fiat ↔ Crypto](https://0xramp-docs.mintlify.app/introduction.md): 0xramp is a non-custodial on/off-ramp for buying and selling crypto with fiat via local payment services (Pix, Pago Movil, Alias, UPI, QRIS). Your funds and keys remain yours throughout every transaction. - [How 0xramp Works: Buy and Sell Crypto with Fiat](https://0xramp-docs.mintlify.app/how-it-works.md): Learn how 0xramp's buy (fiat to crypto) and sell (crypto to fiat) flows work across P2P.me, Base USDC, and NEAR Intents. - [Buy Crypto with Fiat on 0xRamp](https://0xramp-docs.mintlify.app/buying.md): Step-by-step guide to buying ZEC, NEAR, SOL, ETH, BTC, USDC and other assets on 0xramp by paying fiat with fiat via local payment services (Pix, Pago Movil, Alias, UPI, QRIS). Funds arrive in your wallet in less than 6 minutes. - [Sell Crypto for Fiat on 0xramp](https://0xramp-docs.mintlify.app/selling.md): Send crypto from your wallet and receive fiat currencies ({currencies}) to your bank app. No custodian needed — P2P.me releases payment once your deposit is confirmed on-chain. - [Accounts and Identity on 0xramp — Wallets, KYC & Limits](https://0xramp-docs.mintlify.app/accounts-identity.md): Understand the two login options on 0xramp — P2P.me smart account and external wallets — and how identity, reputation, and limits work. - [Supported Crypto Assets and Address Formats on 0xramp](https://0xramp-docs.mintlify.app/supported-assets.md): Full list of cryptocurrencies on 0xramp, their networks, and address rules — including why only Zcash transparent addresses are supported for delivery. - [Understanding Trading Limits and Verification on 0xramp](https://0xramp-docs.mintlify.app/limits-verification.md): How trading limits work on 0xramp, where they come from, and how to increase them by completing ZK-KYC verification through P2P.me. - [0xramp Fees and Quotes: Full Breakdown Before You Confirm](https://0xramp-docs.mintlify.app/fees-quotes.md): How 0xramp calculates order quotes and what fees apply — fixed fee, conversion fee, and spread — all shown before you confirm a trade. - [Failed Trades and Refunds on 0xramp — Resolution Guide](https://0xramp-docs.mintlify.app/refunds-failed-trades.md): What to do when a buy or sell order fails on 0xramp: how refunds work in a non-custodial protocol, timelines, and what to send support. - [Security and Trust Model of 0xramp — Architecture Guide](https://0xramp-docs.mintlify.app/security-trust.md): Understand what 0xramp sees and does, what is committed on-chain, and what the protocol never accesses — including your keys and Pix credentials. - [Frequently Asked Questions About 0xramp — Help and Support](https://0xramp-docs.mintlify.app/faq.md): Answers to common questions about logging in, wallet connect, trading limits, failed trades, and how 0xramp's non-custodial model works. - [0xramp Technical Architecture: Stack and Components](https://0xramp-docs.mintlify.app/developers/architecture.md): A high-level overview of 0xramp's stack: React/Vite frontend, Express API, P2P.me SDK, and NEAR Intents integration for developers and contributors. - [Environment Configuration Guide for 0xramp Developers](https://0xramp-docs.mintlify.app/developers/configuration.md): How environment variables are organized in 0xramp: public VITE_ variables safe for the browser bundle vs server-side secrets never exposed in docs. - [Contributing to 0xramp — Developer Setup and Guidelines](https://0xramp-docs.mintlify.app/developers/contributing.md): How to set up a local development environment, understand the codebase structure, and contribute code or documentation to 0xramp as an open-source project. - [0xramp Changelog — Beta Release History and Roadmap](https://0xramp-docs.mintlify.app/developers/changelog.md): Release history for 0xramp: what shipped in the v0.9 public beta, what is planned for v1.0, and how to follow the project as it approaches stable release.