@solana-developers/helpers
Solana helper functions
Discover, install, and share crypto MCP, CLI, SDK, API, x402, RWA, and AI agent tools — all in one place.
Know a crypto MCP, CLI, SDK, API, or x402 tool we should review? Send it for operator review before it appears publicly.
Suggest →Ask your AI: Find crypto tools on onchain-ai.
$ npx mcp-remote www.onchain-ai.xyz/mcp {
"mcpServers": {
"onchainai": {
"command": "npx",
"args": ["mcp-remote", "https://www.onchain-ai.xyz/mcp"]
}
}
} Solana helper functions
TypeScript SDK for BOB Gateway swaps and order execution. Wraps Gateway routes, quotes, create-order, executeQuote, and wallet adapters including OKX Wallet and Reown.
Cryptographic functions for ethereum and how to use them with web3 and solidity
Hardhat Ignition is a declarative system for deploying smart contracts on Ethereum. It enables you to define smart contract instances you want to deploy, and any operation you want to run on them. By taking over the deployment and execution, Hardhat Ignit
JavaScript library containing aggregated information and abstractions for web3 blockchains.
React hooks and providers for ChainGate — integrate multi-chain cryptocurrency wallets into React apps with two hooks. Create, import, and manage wallets across Bitcoin, Ethereum, and 30+ blockchains with zero boilerplate and automatic state synchronizati
LI.FI SDK for Any-to-Any Cross-Chain-Swap
Multi-chain cryptocurrency SDK for TypeScript — unified API for Bitcoin, Ethereum, Litecoin, Dogecoin, Bitcoin Cash, Polygon, Arbitrum, and any EVM-compatible chain. Create wallets, query balances, send transactions, and manage tokens and NFTs across UTXO
The full stack toolkit to build onchain app UX.
Execute cross-chain token trading on EVM and Solana with Particle Network Universal Account SDK. Use when users ask to set up universal-account-example, buy or sell tokens, run convert/swap flows, transfer assets, call custom transactions, query balances/history, or monitor transaction status via WebSocket.
Deploy ERC20 tokens on Base, Ethereum, Arbitrum, and other EVM chains using the Clanker SDK. Use when the user wants to deploy a new token, create a memecoin, set up token vesting, configure airdrops, manage token rewards, claim LP fees, or update token metadata. Supports V4 deployment with vaults, airdrops, dev buys, custom market caps, vanity addresses, and multi-chain deployment.
Make paid API requests using the x402 HTTP payment protocol (USDC on Base Sepolia). Use when you need to access x402-protected services, pay for API calls with crypto, or perform web searches via an x402 search gateway. Handles wallet setup, payment signing, and request retry automatically.
Credit card bridge to x402 APIs enabling use of any x402 endpoint without crypto wallet or blockchain experience.
Integrate Circle Gateway to hold a unified USDC balance across multiple blockchains and transfer USDC instantly (<500ms) via permissionless deposit, burn, and mint workflows. Available on 11 EVM chains + Solana (mainnet and testnet), plus Arc testnet. Use when: enabling chain-agnostic user experiences, low-latency or instant next-block finality is required, capital needs to be pooled across chains for greater capital efficiency, or building apps with consolidated crosschain balances. Triggers on: Gateway, unified balance, crosschain USDC, instant transfer, chain abstraction, Gateway Wallet, Gateway Minter, gatewayMint, burn intent, crosschain liquidity, payment routing, capital efficiency, permissionless transfer.
Build USDC bridging with Circle Bridge Kit SDK and Crosschain Transfer Protocol (CCTP). Supports bridging USDC between EVM chains, between EVM chains and Solana, and between any two chains on Circle Wallets (i.e Developer-Controlled Wallets or Programmable wallets). Use when: bridge USDC, setting up Bridge Kit adapters (Viem, Ethers, Solana Kit, Circle Wallets), handling bridge events, collecting custom fees, configuring transfer speed, or using the Forwarding Service. Triggers on: Bridge Kit, bridge USDC, crosschain transfer, CCTP, move USDC between chains, @circle-fin/bridge-kit, adapter-viem, adapter-ethers, adapter-solana-kit, forwarding service, bridge routes.
MCP-Server für Solana-Blockchain-Daten — Wallets, Token-Preise, DeFi-Yields, Sicherheitschecks
Universal EVM MCP server supporting 30+ EVM-compatible chains including Ethereum, Polygon, BSC, and Arbitrum.
Ethereum Intelligence MCP Server — Token risk, gas, RWA, stablecoin, DeFi yields. Part of FeedOracle.
Cross-chain cryptocurrency swaps via Chainflip. Get quotes, execute swaps, and track progress across Bitcoin, Ethereum, Solana, and Arbitrum.
This skill should be used when the user asks to 'broadcast transaction', 'send tx', 'estimate gas', 'simulate transaction', 'check tx status', 'track my transaction', 'get gas price', 'gas limit', 'broadcast signed tx', or mentions broadcasting transactions, sending transactions on-chain, gas estimation, transaction simulation, tracking broadcast orders, or checking transaction status. Covers gas price, gas limit estimation, transaction simulation, transaction broadcasting, and order tracking across XLayer, Solana, Ethereum, Base, BSC, Arbitrum, Polygon, and 20+ other chains. Do NOT use for swap quote or execution - use okx-dex-swap instead. Do NOT use for general programming questions about transaction handling.
Use this skill to 'broadcast transaction', 'send tx', 'estimate gas', 'simulate transaction', 'check tx status', 'track my transaction', 'get gas price', 'gas limit', 'broadcast signed tx', 'transaction hash confirmed on-chain', '交易哈希是否上链', '是否确认', or mentions broadcasting transactions, sending transactions on-chain, gas estimation, transaction simulation, tracking broadcast orders, or checking transaction status. Covers gas price, gas limit estimation, transaction simulation, transaction broadcasting, and order tracking across XLayer, Solana, Ethereum, Base, BSC, Arbitrum, Polygon, and 20+ other chains. Do NOT use for swap quote or execution - use okx-dex-swap instead. Do NOT use for general programming questions about transaction handling. Do NOT use when the user says only a single word like 'gas' or 'broadcast' without specifying a chain, transaction, or any other context.
Proactive monitoring of Aave V3 borrow positions with liquidation alerts. Queries user collateral, debt, and health factor across chains (Ethereum, Polygon, Arbitrum, etc.). Sends urgent alerts to Telegram/Discord/Slack when health factor drops below configurable thresholds (critical at 1.05, warning at 1.2). Use when you need continuous monitoring of Aave positions, want alerts before liquidation risk occurs, or need periodic summaries of your borrowing health.
Universal cross-chain swap & bridge skill for OpenClaw using the NEAR Intents 1Click SDK. Supports 14+ blockchains including NEAR, Base, Ethereum, Solana, and Bitcoin.
Full blockchain ecosystem analysis covering TVL, top protocols, bridge flows, stablecoin supply, DEX volume, fees, and user activity on a chain. Use when the user asks about a blockchain's ecosystem, "what's happening on Solana", chain health, or a chain-level overview.
Multi-chain EVM RPC for Ethereum, Arbitrum, Base, BSC via QuickNode API. Provides fast blockchain node access and data queries across multiple networks.
Ultimate cryptocurrency MCP with unified access to crypto, DeFi, and Web3 analytics
Fetches cryptocurrency market data, prices, technical analysis, news, and trends using the CoinMarketCap MCP. Use for ANY question involving cryptocurrencies, tokens, or blockchain markets, even if the user doesn't explicitly ask for data. This includes price checks, portfolio questions, market analysis, coin comparisons, holder metrics, technical indicators, and news. Trigger: "bitcoin", "ETH", "crypto", "token price", "market cap", "how is [coin] doing", "/cmc-mcp"
On-chain analytics, token metrics, security insights for smart contracts
Cross-chain token transfers via Wormhole SDK. Enables bridging assets between blockchains using the Wormhole interoperability protocol.
Smart contract deployment, transactions, account management, keypair generation
Onchain tools for Claude AI to interact with Polygon PoS blockchain
On-chain actions, smart contract interactions, token management with 200+ integrations
Multi-chain MCP supporting Ethereum, Solana, Cardano, THORChain, XRP, Bitcoin, TON and more