Agent Wallet

Documentation Index

Fetch the complete documentation index at: https://developers.fd.xyz/llms.txt

Use this file to discover all available pages before exploring further.

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March 31, 2026

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CLI v0.4.2

• Minimized npm package surface with files whitelist

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March 30, 2026

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CLI v0.4.1

• Persistent configuration via ~/.fdx/config.json
• New fdx config set|get|unset <key> <value> subcommands for managing CLI settings
• Config source labels in fdx config output: (env), (config), (default)

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March 16, 2026

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CLI v0.4.0

• New fdx wallet <method> subcommand for Wallet MCP tools (transfers, swaps, yield, x402 payments)
• New fdx prism <method> subcommand for Prism MCP tools (payments, settlements, accounts)
• New fdx services command — list available services and their URLs
• Multi-service routing — CLI routes tool calls to Wallet or Prism based on subcommand
• Dynamic tool discovery — available methods are fetched from each MCP server at runtime
• New environment variables: FDX_WALLET_MCP_URL / FDX_PRISM_MCP_URL for per-service URL overrides

• fdx call <method> is deprecated — use fdx wallet <method> or fdx prism <method> instead
• WalletClient renamed to FdxClient in SDK exports (no backward-compat alias)
• FDX_MCP_SERVER env var deprecated — use FDX_WALLET_MCP_URL / FDX_PRISM_MCP_URL

# Before (v0.3.x)
fdx call getWalletOverview --chainKey ethereum

# After (v0.4.0+)
fdx wallet getWalletOverview --chainKey ethereum
fdx prism listPayments               # Prism tools
fdx services                         # list available services

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February 28, 2026

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CLI

• Replaced Device Authorization Grant with email OTP — authentication is now fully headless, no browser required
• New auth commands: fdx register --email <email>, fdx login --email <email>, fdx verify --code <otp>
• Pending verification state is persisted to the OS credential store and survives between CLI invocations
• Expired access tokens are now refreshed automatically using the stored refresh token
• Windows PowerShell rendering fixed — spinner and checkmarks now use ASCII characters and display correctly

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February 24, 2026

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CLI

• fdx login introduced as the primary authentication command (fdx setup remains a hidden backward-compatible alias)
• fdx call <method> --help now shows required and optional parameters, types, descriptions, and a usage example for each tool
• “Did you mean?” fuzzy matching for mistyped or partially typed method names
• fdx call groups tools into categories: Wallet, Transfer, Swap, Yield, Payment, Account, Support
• CLI arguments are automatically coerced to the correct type (numbers, integers) based on the tool schema
• New getTokenPrice tool — look up the current USD price and 24h change for any token
• New resolveNameService tool — resolve ENS (.eth), SNS (.sol), and Unstoppable Domain names to addresses and vice versa
• Updated tool parameter signatures for transferTokens, depositForYield, withdrawFromYield, authorizePayment, getAccountActivity, and discoverYieldStrategies
• Removed deploySmartAccount and manageSmartAccountOwnership tools

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February 19, 2026

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CLI

• Switched authentication to Device Authorization Grant (RFC 8628) — fdx setup no longer opens a browser; authentication happens via device code
• Added HTTPS validation for all discovered OAuth endpoints
• Improved error handling for expired OS credential store sessions and missing refresh tokens
• Fixed a bug where null client ID was sent as a literal string "null" during token refresh

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February 17, 2026

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Documentation Launch

• Full Agent Wallet documentation published in the Developer Hub
• Wallet Architecture — Progressive EOA → Smart Account → Delegated architecture
• Security Model — TEE key management with AWS Nitro Enclaves
• Trust & Risk — Pocket money philosophy and progressive trust

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MCP Server

• MCP Server documentation for connecting AI agents via Model Context Protocol
• Client setup guides for Claude Desktop, Cursor, Windsurf, and custom clients
• Agent Skills reference covering all wallet capabilities

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Interfaces

• CLI documentation with full command reference
• AI Assistant guide for the conversational wallet interface
• Example Prompts — ready-to-use prompts for common tasks

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Advanced

• Multi-Wallet Strategy patterns for multi-wallet deployments