4,229 mods tagged Web3 and blockchain that install into Codex, measured the same four ways as everything else here: what each costs in tokens on every session, what a security scan found and why, whether it is the original, and what changed.
Skill Claude CodeCodex
Write system prompts, tool docs, and agent definitions. Project tag conventions + RFC 2119 keywords + dense compression. Use when authoring or editing any prompt the model reads.
Skill Claude CodeCodex
Build AI agents with Pydantic AI — tools, capabilities (including on-demand loading), workspaces, structured output, streaming, testing, and multi-agent patterns. Use when the user mentions Pydantic AI, imports pydanticai, or asks to build an AI agent, add tools/capabilities, attach a workspace, defer capability…
Skill Claude CodeCodex
Creating Headless CMS content models via code using the ModelFactory pattern. Use this skill when the developer wants to create, modify, or understand content model definitions, define fields and validators, set up reference fields between models, configure field layouts (including nested layouts inside object or…
Skill Claude CodeCodex
Use when reading or reasoning about compiled Move bytecode or sui move disassemble output. Mental model for the binary format, what survives compilation (and what's lost), and how to read disassembly soundly. Trigger on "what does this package do?", "read this .mv module", "interpret this disassembly", or whenever an…
Skill Claude CodeCodex
Post to and read from the A1 Agent Board — a public, auditable, permanent message board for AI agents. Use when the user asks to leave a message for future agents, check what other agents have posted, watch a topic, or share a finding with the agent community. Messages are cryptographically signed and permanent.
Skill Claude CodeCodex
Use when evaluating crypto through a Grayscale-style Crypto Sectors lens: sector taxonomy, FTSE/Grayscale index eligibility, fee/usage fundamentals, sector-share valuation, ETP/trust wrappers, and Zcash-style privacy-as-money theses.
MCP server Claude CodeCodexCursor +2
MCP server "agent-kit" as configured in sendaifun/solana-agent-kit. Runs /absolute/path/to/build/index.js with node. Needs 3 environment variables to run.
Skill Claude CodeCodex
Build customized Amethyst Nostr clients for Android. Fork, rebrand, customize, and distribute your own version.
Skill Claude CodeCodex
Run and monitor BTC 5-minute Up/Down trading on Polymarket using momentum-near-close logic (time-left, BTC move, market skew), fixed/controlled sizing, optional micro-hedge, and one-shot or loop execution.
Skill Claude CodeCodex
Generate Echidna/Medusa-compatible Solidity fuzz suites from Foundry or Hardhat projects. Trigger on "fizz", "generate fuzz suite", "build fuzz harness", "stateful fuzzing", "fuzzing harness", "property testing", and "invariant suite".
Skill Claude CodeCodex
Validates whether a DefiLlama request belongs in DefiLlama-Adapters, then helps coding agents create and validate TVL adapters when it does. Use when a user wants to add a new DefiLlama TVL protocol listing, check repo fit, create or fix a TVL adapter, choose adapter helpers or registries, run node test.js, prepare PR…
Skill Claude CodeCodex
Use when writing or debugging JavaScript/TypeScript that interacts with Starknet through the starknet.js SDK — building Call objects or calldata, encoding/decoding Cairo types (felt252, u256, structs, arrays, spans, ByteArray, Option/Result/custom enums), or working with contracts, accounts, providers, transactions…
Skill Claude CodeCodex
Interact with Cat Town — a Farcaster-native game world on Base. Covers KIBBLE staking (stake, claim, unlock, unstake, leaderboard, deposit history); live world state (season, weather, time of day, weekend flag); fishing drops filtered by world state; Isabella's weekend fishing competition with live prize-pool math…
Skill Claude CodeCodex
Scaffold for assembling on-chain copy-trading strategies on Binance Agentic Wallet. Wires the existing capabilities — address monitoring, signal subscription, address scoring, token audit, order placement, on-chain take-profit/stop-loss — into one runnable pipeline, and exposes every strategy decision as a hook. Ships…
Skill Claude CodeCodex
Deep security audit of a smart-contract repo OR a live on-chain contract by address - detect Solidity, model the protocol invariants and trust boundaries first, run Slither (best-effort) plus a bounded agentic pass that hunts for a path breaking each invariant, triage, adversarially verify, prove with a fuzzer, and…
Skill Codex
Write and debug Foundry tests and Solidity scripts. Use when writing unit, fuzz, fork, or invariant tests, writing bulloak BTT .tree specs (Branching Tree Technique), using cheatcodes, benchmarking gas, measuring coverage, writing deploy scripts, or working in tests/ or script/.
solana-foundation/solana-dev-skill
Skill Claude CodeCodex
Use when user asks to "build a Solana dapp", "write an Anchor program", "create a token", "debug Solana errors", "set up wallet connection", "test my Solana program", "fuzz my Solana program", "deploy to devnet", "send a v1 transaction", "support larger transactions", "fix maxSupportedTransactionVersion", or "explain…
Skill Claude CodeCodex
Operates Flounder, an autonomous white-hat security auditor. Use when a user asks for a security audit, bug-bounty review, vulnerability investigation, or exploit proof for a public-source or authorized repository, source tree, package, smart contract, Solidity/EVM project, ZK or proof-system code, deployed address…
Skill Claude CodeCodex
Discover, verify, security-screen, and maintain Solana wallet products using the canonical local registry in packages/ecosystem-data and current web research. Use when asked to refresh wallet data, find new Solana wallets, add or remove wallets, check wallets for scam or security concerns, audit wallet features or…
Skill Codex
Work against the SORA Minamoto mainnet through its deployed Torii MCP endpoint for live account, asset, alias, contract, governance, Musubi package-registry, and transaction workflows. Use when Codex needs to inspect Minamoto mainnet, verify or add https://minamoto.sora.org/v1/mcp, prefer the curated iroha. tool…
Skill Codex
Analyze supplied deployed EVM runtime bytecode with EVMole or guide a separate application in integrating a published EVMole Rust, Go, Python, or JavaScript binding. Use for unverified-contract inspection, ABI reconstruction from runtime code, selector discovery, storage-access analysis, EVM control-flow inspection…
Skill Claude CodeCodex
Generate Echidna/Medusa-compatible Solidity fuzz suites from Foundry or Hardhat projects. Trigger on "fizz", "generate fuzz suite", "build fuzz harness", "stateful fuzzing", "fuzzing harness", "property testing", and "invariant suite".
Skill Codex
Build, simulate, test, fork, and debug EVM transactions in TypeScript with tevm 1.0.0-rc.151. Use for in-process EVM scripts, typed Solidity imports, lazy mainnet or OP-stack forks, direct account and storage setup, viem-compatible contract actions, Vitest EVM tests, traces, and transaction simulation.
Skill Claude CodeCodex
Crypto trading & wallet, and AI market analysis via Minara CLI. Swap, perps, transfer, deposit (credit card/crypto), withdraw, AI chat, market discovery, x402 payment, autopilot, limit orders, premium. EVM + Solana + Hyperliquid. Use when: (1) crypto tokens/tickers (ETH, BTC, SOL, USDC, $TICKER, contract addresses)…
At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: