# Crossmint Agentic Finance

## Docs

- [Cloudflare Agents x402](https://mintlify.wiki/Crossmint/crossmint-agentic-finance/a2a/cloudflare-agents.md): Agent-to-agent autonomous payments using Crossmint smart wallets and x402 protocol on Cloudflare Workers
- [Events Concierge](https://mintlify.wiki/Crossmint/crossmint-agentic-finance/a2a/events-concierge.md): Production-ready reference implementation of paid AI tools with autonomous agent payments using MCP and x402
- [Hello Crossmint Wallets A2A](https://mintlify.wiki/Crossmint/crossmint-agentic-finance/a2a/hello-crossmint.md): Complete Agent-to-Agent payment flow using x402 and Crossmint Wallets SDK in a React app
- [Hello EOA A2A Demo](https://mintlify.wiki/Crossmint/crossmint-agentic-finance/a2a/hello-eoa.md): Minimal merchant/client example using the A2A JS SDK with x402 payments and Externally Owned Wallets
- [Send Tweet Agent](https://mintlify.wiki/Crossmint/crossmint-agentic-finance/a2a/send-tweet.md): Post tweets to X/Twitter for payment via the x402 protocol with Crossmint smart wallets
- [x402Adapter](https://mintlify.wiki/Crossmint/crossmint-agentic-finance/api/crossmint-adapter.md): Convert Crossmint wallets to viem-compatible accounts for x402 payments
- [@crossmint/wallets-sdk](https://mintlify.wiki/Crossmint/crossmint-agentic-finance/api/crossmint-wallets.md): Create and manage Crossmint smart wallets for AI agents
- [EIP-712 Typed Data Signatures](https://mintlify.wiki/Crossmint/crossmint-agentic-finance/api/eip-712-signatures.md): Human-readable structured data signing for payment verification in x402 protocol
- [ERC-6492 Pre-Deployment Validation](https://mintlify.wiki/Crossmint/crossmint-agentic-finance/api/erc-6492-validation.md): Verify signatures from smart wallets before they're deployed on-chain
- [x402 Facilitator](https://mintlify.wiki/Crossmint/crossmint-agentic-finance/api/facilitator.md): Payment verification and settlement service for the x402 protocol
- [x402-axios](https://mintlify.wiki/Crossmint/crossmint-agentic-finance/api/x402-axios.md): Axios interceptor for automatic x402 payment handling
- [x402-express](https://mintlify.wiki/Crossmint/crossmint-agentic-finance/api/x402-express.md): Express.js middleware for HTTP 402 payment-required responses
- [x402-fetch](https://mintlify.wiki/Crossmint/crossmint-agentic-finance/api/x402-fetch.md): Fetch API wrapper with automatic x402 payment handling
- [x402-hono](https://mintlify.wiki/Crossmint/crossmint-agentic-finance/api/x402-hono.md): Hono middleware for HTTP 402 payment-required responses in Cloudflare Workers
- [Agent-to-Agent Payments](https://mintlify.wiki/Crossmint/crossmint-agentic-finance/concepts/a2a-payments.md): Autonomous payment flows between AI agents using x402 and MCP
- [Payment Flow](https://mintlify.wiki/Crossmint/crossmint-agentic-finance/concepts/payment-flow.md): Detailed end-to-end payment flows with diagrams and code examples
- [Crossmint Smart Wallets](https://mintlify.wiki/Crossmint/crossmint-agentic-finance/concepts/smart-wallets.md): ERC-4337 smart wallets with ERC-6492 and EIP-1271 signature support
- [x402 Protocol](https://mintlify.wiki/Crossmint/crossmint-agentic-finance/concepts/x402-protocol.md): Understanding the HTTP 402 Payment Required protocol for agent-to-agent payments
- [Cloudflare Deployment](https://mintlify.wiki/Crossmint/crossmint-agentic-finance/deployment/cloudflare.md): Deploy AI agents to Cloudflare Workers and Durable Objects for production-grade stateful agents
- [Local Development](https://mintlify.wiki/Crossmint/crossmint-agentic-finance/deployment/local-development.md): Run Crossmint Agentic Finance demos locally and set up your development environment
- [Production Deployment](https://mintlify.wiki/Crossmint/crossmint-agentic-finance/deployment/production.md): Production deployment checklist and mainnet configuration for Crossmint Agentic Finance
- [x402 Ad Agent](https://mintlify.wiki/Crossmint/crossmint-agentic-finance/examples/ad-agent.md): Claude-powered agents competing for ad space with autonomous payments
- [Event RSVP (Events Concierge)](https://mintlify.wiki/Crossmint/crossmint-agentic-finance/examples/event-rsvp.md): Production MCP server with autonomous agent payments using Durable Objects
- [WorldStore Agent](https://mintlify.wiki/Crossmint/crossmint-agentic-finance/examples/worldstore-agent.md): Amazon purchases via AI chat with gasless USDC payments on Base
- [Introduction](https://mintlify.wiki/Crossmint/crossmint-agentic-finance/introduction.md): Reference implementations showing AI agents making autonomous blockchain payments using Crossmint wallets
- [Ping Demo](https://mintlify.wiki/Crossmint/crossmint-agentic-finance/paywalls/ping.md): Basic HTTP 402 paywall implementation with x402
- [Ping Crossmint Demo](https://mintlify.wiki/Crossmint/crossmint-agentic-finance/paywalls/ping-crossmint.md): Full-stack HTTP 402 paywall with Crossmint smart wallet UI integration
- [Solana USDC Demo](https://mintlify.wiki/Crossmint/crossmint-agentic-finance/paywalls/solana.md): HTTP 402 paywall implementation on Solana with Crossmint integration
- [Weather Demo](https://mintlify.wiki/Crossmint/crossmint-agentic-finance/paywalls/weather.md): HTTP 402 paywall protecting a real-world API with dynamic data
- [Prerequisites](https://mintlify.wiki/Crossmint/crossmint-agentic-finance/prerequisites.md): Set up your development environment for Crossmint Agentic Finance
- [Quickstart](https://mintlify.wiki/Crossmint/crossmint-agentic-finance/quickstart.md): Get started with Crossmint Agentic Finance in under 5 minutes
- [Build an Autonomous Payment Agent](https://mintlify.wiki/Crossmint/crossmint-agentic-finance/tutorials/autonomous-agent.md): Create an AI agent that automatically pays for services using x402 and Crossmint wallets
- [Build an HTTP Paywall](https://mintlify.wiki/Crossmint/crossmint-agentic-finance/tutorials/build-paywall.md): Step-by-step tutorial: Create a paid API endpoint using x402 protocol
- [Stateful Agents with Durable Objects](https://mintlify.wiki/Crossmint/crossmint-agentic-finance/tutorials/durable-objects.md): Build production-grade multi-tenant agent systems using Cloudflare Durable Objects