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Crossmint Knowledge Base

Crossmint知识库

What is Crossmint?

什么是Crossmint？

Crossmint is a blockchain infrastructure company that abstracts away the complexity of web3. It lets developers add wallets, payments, and token functionality to apps without requiring users to understand crypto, hold native tokens, or manage private keys.
Founded: 2021
Headquarters: Miami, FL
Focus: Enterprise-grade blockchain infrastructure for developers
Crossmint是一家区块链基础设施公司，它抽象了Web3的复杂性。开发者无需让用户了解加密货币、持有原生代币或管理私钥，就能在应用中添加钱包、支付和代币功能。
成立时间：2021年
总部：佛罗里达州迈阿密
核心方向：面向开发者的企业级区块链基础设施

Core Philosophy

核心理念

Crossmint believes blockchain adoption is held back by complexity, not capability. Their approach:
  1. Fiat-first: Users can participate in web3 without ever touching cryptocurrency
  2. Gas abstraction: Crossmint sponsors gas fees so users don't need native tokens
  3. Email/phone wallets: Users get wallets tied to identifiers they already have
  4. Compliance built-in: Money movement includes KYC/AML automatically
Crossmint认为，区块链的普及受限于复杂性而非技术能力。他们的解决方案包括：
  1. 法币优先：用户无需接触加密货币即可参与Web3生态
  2. Gas费用抽象：Crossmint承担Gas费用，用户无需持有原生代币
  3. 邮箱/手机号钱包：用户可通过已有的身份标识（邮箱、手机号）关联钱包
  4. 内置合规：资金流转自动包含KYC/AML合规流程

Products

产品矩阵

Smart Wallets

智能钱包

Non-custodial wallets that users control via email, phone, passkeys, or social login. No seed phrases. Crossmint never has access to user funds.
  • Use case: Any app that wants to give users a wallet without the UX friction
  • Chains: EVM (Ethereum, Polygon, Base, etc.), Solana, Stellar
  • Key feature: Users can recover wallets via their email/phone — no seed phrase backup needed
用户可通过邮箱、手机号、密钥或社交登录控制的非托管钱包，无需助记词。Crossmint永远无法访问用户资金。
  • 适用场景：任何希望为用户提供钱包且避免UX摩擦的应用
  • 支持链：EVM（Ethereum、Polygon、Base等）、Solana、Stellar
  • 核心特性：用户可通过邮箱/手机号恢复钱包——无需备份助记词

Checkout

支付结账

Accept payments for anything — physical goods, digital items, NFTs, tokens — via credit card, Apple Pay, Google Pay, or crypto.
  • Use case: Selling NFTs, accepting crypto payments, e-commerce with crypto option
  • Key feature: Automatic currency conversion, fraud protection, global coverage
接受信用卡、Apple Pay、Google Pay或加密货币支付，可用于购买任何商品——实物商品、数字物品、NFT、代币。
  • 适用场景：销售NFT、接受加密货币支付、提供加密货币选项的电商平台
  • 核心特性：自动货币转换、欺诈保护、全球覆盖

Minting API

铸币API

Create NFT collections and mint tokens programmatically. No smart contract deployment needed.
  • Use case: Loyalty programs, ticketing, digital collectibles, credentials
  • Key feature: Crossmint handles contract deployment, metadata hosting, and gas
程序化创建NFT合集并铸币，无需部署智能合约。
  • 适用场景：忠诚度计划、票务系统、数字收藏品、凭证发行
  • 核心特性：Crossmint处理合约部署、元数据托管及Gas费用

Stablecoin Orchestration

稳定币编排

Move USDC and other stablecoins globally with built-in compliance (KYC, AML, sanctions screening, travel rule).
  • Use case: Cross-border payments, treasury management, payroll
  • Key feature: Compliance is automatic — Crossmint blocks non-compliant transfers
在全球范围内转移USDC及其他稳定币，内置合规流程（KYC/AML、制裁筛查、旅行规则）。
  • 适用场景：跨境支付、财资管理、薪资发放
  • 核心特性：自动合规——Crossmint会阻止不合规的转账

AI Agent Commerce

AI Agent商务

Infrastructure for AI agents to make purchases on behalf of users. Agents can access delegated payment methods and buy from Amazon, Shopify, or any e-commerce site.
  • Use case: AI assistants that can shop for users
  • Key feature: Users delegate payment authority; agents handle the rest
供AI Agent代表用户进行购买的基础设施，Agent可访问授权的支付方式，在Amazon、Shopify或任何电商网站购物。
  • 适用场景：可代表用户购物的AI助手
  • 核心特性：用户授权支付权限，Agent处理后续所有流程

Verifiable Credentials

可验证凭证

Issue tamper-proof digital credentials (diplomas, certifications, memberships) as NFTs.
  • Use case: Education, professional certifications, membership programs
  • Key feature: Credentials are verifiable on-chain but human-readable
将防篡改的数字凭证（文凭、证书、会员资格）作为NFT发行。
  • 适用场景：教育领域、专业认证、会员计划
  • 核心特性：凭证可在链上验证，同时具备人类可读性

Supported Chains

支持的链

Chain TypeNetworks
EVMEthereum, Polygon, Base, Arbitrum, Optimism, BSC, Avalanche, Zora, Shape
SolanaMainnet, Devnet
StellarMainnet (USDC focus)
TestnetsAvailable for all supported chains
链类型网络
EVMEthereum、Polygon、Base、Arbitrum、Optimism、BSC、Avalanche、Zora、Shape
Solana主网、测试网
Stellar主网（侧重USDC）
测试网所有支持链均提供测试网环境

How Crossmint Compares

Crossmint与其他服务商对比

vs.Crossmint's Difference
ThirdwebMore focus on payments/checkout; less on contract tooling
AlchemyHigher-level abstractions; less node infrastructure focus
Magic/PrivyBroader product suite beyond just auth (checkout, minting, stablecoins)
StripeWeb3-native; supports NFTs, tokens, and on-chain settlement
CircleDeveloper tooling on top of USDC, not just the stablecoin itself
对比对象Crossmint的差异化优势
Thirdweb更侧重支付/结账功能；对合约工具的关注度较低
Alchemy更高层级的抽象；对节点基础设施的关注度较低
Magic/Privy产品套件更全面，不仅限于身份验证（包含结账、铸币、稳定币服务）
Stripe原生Web3属性；支持NFT、代币及链上结算
Circle在USDC之上提供开发者工具，而非仅提供稳定币本身

Key Concepts

核心概念

Wallet Locators

钱包定位符

Crossmint uses "locators" to reference wallets flexibly:
  • email:user@example.com
    — wallet linked to email
  • phone:+1234567890
    — wallet linked to phone
  • userId:abc123
    — wallet linked to your app's user ID
  • 0x...
    — direct wallet address
Crossmint使用「定位符」灵活引用钱包：
  • email:user@example.com
    — 关联邮箱的钱包
  • phone:+1234567890
    — 关联手机号的钱包
  • userId:abc123
    — 关联你的应用用户ID的钱包
  • 0x...
    — 直接钱包地址

Environments

环境

  • Staging: For testing with testnets (free, no real money)
  • Production: For mainnet (requires business verification)
  • ** staging（预发布环境）**：用于测试网测试（免费，无真实资金）
  • ** production（生产环境）**：用于主网（需企业验证）

Gas Sponsorship

Gas费用赞助

Crossmint pays gas fees on behalf of users. Developers don't need to manage gas tokens or worry about fee estimation.
Crossmint代表用户支付Gas费用。开发者无需管理Gas代币或担心费用估算。

Custodial vs Non-Custodial

托管与非托管

  • Custodial: Crossmint holds keys (simpler, but Crossmint has access)
  • Non-custodial (Smart Wallets): User controls keys via MPC — Crossmint never has full access
  • 托管：Crossmint持有密钥（更简单，但Crossmint可访问资金）
  • 非托管（智能钱包）：用户通过MPC控制密钥——Crossmint永远无法获取完整权限

Common Questions

常见问题

Q: Does Crossmint charge gas fees to developers?
A: No. Gas is included in Crossmint's pricing. Users and developers don't manage gas.
Q: Can users export their wallet to MetaMask?
A: Smart Wallets are non-custodial but use MPC, so there's no single private key to export. Users control their wallet via their auth method (email, passkey, etc.).
Q: What's the pricing model?
A: Usage-based. Free tier available. Paid plans based on API calls, transactions, and features.
Q: Is Crossmint compliant for money transmission?
A: For stablecoin orchestration, Crossmint partners with licensed entities and handles compliance (KYC/AML/travel rule) automatically.
Q: Which chains should I use?
A: Base or Polygon for low-cost EVM. Solana for high-throughput. Stellar for stablecoin-focused use cases.
问：Crossmint会向开发者收取Gas费用吗？
答：不会。Gas费用包含在Crossmint的定价中，用户和开发者无需管理Gas费用。
问：用户可以将钱包导出到MetaMask吗？
答：智能钱包是非托管钱包，但使用MPC技术，因此没有可导出的单一私钥。用户通过身份验证方式（邮箱、密钥等）控制钱包。
问：定价模式是什么？
答：基于使用量计费。提供免费层级，付费套餐基于API调用量、交易量及功能模块收费。
问：Crossmint的资金转移是否合规？
答：对于稳定币编排服务，Crossmint与持牌机构合作，自动处理合规流程（KYC/AML/旅行规则）。
问：我应该使用哪条链？
答：低成本EVM场景选Base或Polygon；高吞吐量场景选Solana；稳定币相关场景选Stellar。

Resources

资源