Web3 & Crypto
Blockchain, cryptocurrency, Web3 development
HTS System Contract Skill
by hedera-dev
Hedera Token Service (HTS) smart contract development. Use when creating, managing, or interacting with Hedera-native tokens via Solidity contracts. Triggers include HTS tokens, Hedera token creation, HTS precompile, token minting/burning on Hedera, KYC/freeze/pause token controls, custom fee schedules, NFT collections on Hedera, or any token operations using the 0x167 precompile.
openfacilitator
by rawgroundbeef
x402 payment integration via OpenFacilitator SDK. Use when implementing crypto payments, paywalls, API monetization, or tipping/transfer flows. Triggers: "x402", "OpenFacilitator", "crypto payments", "USDC payments", "paywall", "payment middleware", "verify and settle", "402 Payment Required". Supports EVM (Base, Ethereum, Polygon, Arbitrum, Avalanche, Sei, IoTeX, Peaq, X Layer) and Solana and Stacks chains.
poidh-bounty
by picsoritdidnthappen
Post bounties and evaluate/accept winning submissions on poidh (pics or it didn't happen) on Arbitrum, Base, or Degen Chain. Use this skill when the user wants to create a bounty on poidh.xyz, post a task with an ETH or DEGEN reward on-chain, evaluate photo submissions using vision, accept a winning claim on a solo bounty, or initiate/resolve voting on an open bounty.
net
by stuckinaboot
On-chain data storage, messaging, feeds, NFT Bazaar, and identity protocol via CLI. Use when the user wants to store data on-chain permanently, read on-chain data, send/read messages to feeds, post to topic-based feeds, comment on posts, register feeds, check replies, manage feed history, deploy memecoins with Uniswap V3 liquidity, manage on-chain user profiles (picture, bio, X username), or interact with NFT Bazaar (list NFTs, make offers, buy listings, accept offers, query ownership). Supports Base, Ethereum, Degen, Ham, Ink, Unichain, HyperEVM, Plasma, and Monad. Capabilities include permanent file storage (up to 80KB chunks), key-value storage, registered feeds with posts and comments, personal feeds, topic-based messaging, token deployment with locked liquidity, decentralized identity profiles, and Seaport-based NFT trading.
blockchain
by Mindrally
Expert guidelines for blockchain development including CosmWasm, Cosmos, and cross-chain patterns
build-smart-contracts
by algorand-devrel
Build Algorand smart contracts using Algorand TypeScript (PuyaTs) or Algorand Python (PuyaPy). Use when creating new smart contracts from scratch, adding features or methods to existing contracts, understanding Algorand contract development patterns, or getting guidance on contract architecture. Strong triggers include "create a smart contract", "write a contract that...", "build a voting contract", "implement an NFT contract", "add a method to the contract".
create-python-x402-facilitator
by algorand-devrel
Create Python x402 facilitator services that verify and settle payments on-chain. Use when building a FastAPI-based facilitator, implementing the FacilitatorAvmSigner protocol (sign_transaction, sign_group, simulate_group, send_group, confirm_transaction), registering with register_exact_avm_facilitator, creating multi-network facilitators (EVM+SVM+AVM), or setting up facilitator API endpoints (/verify, /settle, /supported). Strong triggers include "create a Python facilitator", "build a payment facilitator service", "implement FacilitatorAvmSigner", "set up facilitator endpoints", "verify and settle Algorand payments", "fee payer service".
explain-algorand-x402-typescript
by algorand-devrel
Explain x402-avm for TypeScript/JavaScript developers. Use when explaining @x402-avm/* package structure, signer interfaces (ClientAvmSigner, FacilitatorAvmSigner), registration patterns (registerExactAvmScheme), builder patterns, constants, utilities, and TypeScript-specific integration patterns. Strong triggers include "how do I use @x402-avm", "explain the TypeScript packages", "what is ClientAvmSigner", "what is FacilitatorAvmSigner", "how to register AVM scheme", "TypeScript x402 signer", "x402 avm package structure", "how does @x402-avm/avm work", "@x402-avm/core imports".
create-typescript-x402-server
by algorand-devrel
Create x402 payment-protected servers with Express.js and Hono. Use when building a resource server that returns 402 Payment Required, setting up payment middleware, configuring protected routes, implementing multi-network support (AVM+EVM+SVM), integrating paywall UI, building facilitator servers, or implementing dynamic pricing. Strong triggers include "create an x402 server", "add payment middleware to Express", "protect routes with x402", "set up payment-gated API", "hono payment middleware", "402 payment required server", "x402 express server", "x402 hono server", "build a facilitator server", "fee abstraction server".
create-typescript-x402-paywall
by algorand-devrel
Create paywall UIs for x402-protected endpoints on Algorand and multi-chain. Use when building payment-gated content with server-side middleware and client-side wallet integration, setting up PaywallBuilder with network handlers, integrating with Express/Hono/Next.js, configuring wallet discovery (Pera, Defly, Lute), or building multi-network paywalls (AVM+EVM+SVM). Strong triggers include "create x402 paywall", "PaywallBuilder", "avmPaywall", "payment wall", "paywall middleware", "402 payment page", "paywall HTML", "payment-gated content".
create-project
by algorand-devrel
Bootstraps production-ready AlgoKit projects for Algorand dApps and smart contracts. Use when initializing new Algorand smart contract projects, setting up development environments from scratch, or scaffolding dApps with pre-configured tooling. Strong triggers include "create a new project", "initialize a new Algorand app", "start a new smart contract", "set up AlgoKit", "scaffold a dApp", "algokit init".
troubleshoot-errors
by algorand-devrel
Diagnose and fix common Algorand errors including smart contract failures, transaction rejections, and SDK exceptions. Use when encountering smart contract logic errors or assertion failures, transaction rejections or confirmation timeouts, SDK exceptions (AlgodHTTPError, LogicError), account-related errors (insufficient balance, not opted in), or ABI encoding/decoding errors. Strong triggers include "logic eval error", "assert failed", "overspend", "transaction rejected", "pc=X" in error messages, "opcode budget exceeded", "account not found", "asset not found".
deploy-react-frontend
by algorand-devrel
Create React frontends for Algorand dApps with wallet integration. Use when creating React frontends that interact with smart contracts, setting up wallet connections (Pera, Defly, Exodus), integrating typed app clients with wallet signers, or building dApp UIs that call contract methods. Strong triggers include "create a frontend for my contract", "add wallet connection to my React app", "how do I call my contract from the frontend?", "set up use-wallet with my typed client", "connect Pera wallet to my dApp", "algorand.setSigner".
use-algokit-utils
by algorand-devrel
AlgoKit Utils library for interacting with the Algorand blockchain from TypeScript or Python applications. Use when connecting to Algorand networks (LocalNet, TestNet, MainNet), sending payments or transferring assets, creating and managing accounts, deploying or interacting with smart contracts from client code, or composing transaction groups. NOT for writing smart contract code (use build-smart-contracts skill). Strong triggers include "How do I connect to Algorand?", "send a payment transaction", "create an account", "deploy my contract", "get an AlgorandClient", "AlgorandClient.fromEnvironment".
explain-algorand-x402-python
by algorand-devrel
Explain the x402-avm Python package for Algorand payment protocol integration. Use when developers ask about x402 Python package structure, extras installation ([avm], [evm], [svm], [fastapi], [flask], [httpx], [requests], [all]), signer protocols (ClientAvmSigner, FacilitatorAvmSigner), async vs sync variants, registration patterns, or algosdk encoding boundaries. Strong triggers include "how does x402 work in Python?", "explain x402-avm Python package", "what extras do I install?", "ClientAvmSigner vs FacilitatorAvmSigner", "algosdk encoding in x402", "async vs sync x402 Python", "how do I sign Algorand transactions in x402?", "msgpack_decode expects base64".
actions-sdk-integration
by ethereum-optimism
Integrate the Optimism Actions SDK into a TypeScript application. Handles wallet provider setup (Privy, Turnkey, Dynamic), DeFi provider configuration (Morpho, Aave lending), chain and asset selection, and smart wallet creation. Use when the developer wants to add DeFi capabilities like lending, borrowing, swaps, or payments to their app.
aptos
by raintree-technology
Aptos blockchain and Move language expert. Covers Move programming (abilities, generics, resources), Aptos framework modules, smart contract development, token standards (Coin, Fungible Asset, Digital Asset), object model, gas optimization, and dApp integration. Triggers on Aptos, Move language, Move smart contract, Aptos blockchain, abilities, generics, resources, fungible asset, digital asset.
bankr-airdrop
by 0xAxiom
Daily pro rata token airdrop to Bankr Club NFT holders on Base. Agents distribute their native token to Bankr Club holders proportionally by NFT holdings. Triggers on "airdrop", "bankr club", "holder snapshot", "pro rata distribution", "claim and distribute".
CoinGecko Price Skill
by 0xAxiom
No dependencies
schemapin
by ThirdKeyAI
Cryptographic tool schema verification to prevent MCP Rug Pull attacks — ECDSA P-256 signing, SHA-256 hashing, TOFU key pinning, .well-known discovery, signed revocation documents, and (v1.4-alpha across all four languages) signature expiration, DNS TXT cross-verification, and schema version binding (lineage chain)
use-typescript-sdk
by iskysun96
"Guides usage of @aptos-labs/ts-sdk for interacting with the Aptos blockchain from TypeScript/JavaScript applications.
write-contracts
by iskysun96
"Generates secure Aptos Move V2 smart contracts with Object model, Digital Asset integration, security patterns, and
cloudflare
by popmechanic
Self-contained deploy automation — invoke directly, do not decompose. Deploys a Vibes app to Cloudflare Workers with subdomain registry. Uses KV for storage and native Web Crypto for JWT verification.
phantom-wallet-mcp
by sendaifun
Execute wallet operations through the Phantom MCP server — get addresses, sign transactions, transfer tokens, buy tokens, and sign messages across Solana, Ethereum, Bitcoin, and Sui