Web3 and blockchain for Codex

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.

Also for Codex: anthropic · Git and workflow · Python · React · TypeScript · Go · openai · android · docker · Rust · bun · Localization

web3-bug-classes

49

Awarexone/web3-bug-bounty-hunting-ai-skills

Skill Claude CodeCodex

Complete reference for all 10 DeFi smart contract bug classes. Use this when hunting for specific vulnerability types, need attack patterns for accounting desync, access control, incomplete path, off-by-one, oracle manipulation, ERC4626 vaults, reentrancy, flash loans, signature replay, or proxy/upgrade bugs.

not rated 144 2mo ago A SkillSpector: pass 72 tokens original MIT

xray-pre-audit

50

ccashwell/evm-cortex

Skill Claude CodeCodex

Use when preparing for a security audit, performing reconnaissance on a new codebase, or creating a protocol overview. Generates a structured pre-audit readiness report covering architecture overview, threat model, cross-linked protocol invariants, entry point classification and flow paths, composability analysis…

not rated 132 14d ago A SkillSpector: warn 73 tokens original MIT

sendaifun/skills

Skill Claude CodeCodex

Real-time smart money analytics API for Polymarket prediction markets, Hyperliquid perpetual futures, and Meteora Solana LP/AMM pools. 63 endpoints. Pay-per-request via x402 on Solana Mainnet USDC. No API keys.

not rated 131 +1 3mo ago A SkillSpector: warn 57 tokens original Apache-2.0

agent-kit

52

davidpc007/solana-agent-kit

MCP server Claude CodeCodexCursor +2

MCP server "agent-kit" as configured in davidpc007/solana-agent-kit. Runs /absolute/path/to/build/index.js with node. Needs 3 environment variables to run.

not rated 130 1mo ago A tokens not measured copy · 100% Apache-2.0

malloydata/publisher

Skill Claude CodeCodex

Malloy modeling mistakes and compile-error fixes. Read before writing sources, dimensions, measures or joins, and when a .malloy file will not compile. Reserved words, NULLs, dates, field access.

not rated 130 +12 changed today A SkillSpector: pass 50 tokens original MIT

skill

54

build23w/fdv.lol

Skill Claude CodeCodex

This skill is for running fdv.lol CLI mode (cli.mjs) with Agent Gary Full AI Control enabled, so the AI can fully drive Auto Trader decisions.

not rated 127 3mo ago C 0 tokens original MIT

lineth-quickstart

55

LFDT-Lineth/lineth-monorepo

Skill Claude CodeCodex

Operating manual for the Lineth Stack quickstart — the Docker-Compose dev/demo stack at docs/getting-started/lineth-stack in the lineth-monorepo that boots a local Linea/Lineth L2 with Sepolia or local L1 finality. Use whenever you are working inside the lineth-stack quickstart and need to boot or run the stack…

not rated 127 +1 today A SkillSpector: pass 228 tokens original Apache-2.0

chainlink-cre-skill

56

smartcontractkit/chainlink-agent-skills

Skill Claude CodeCodex

Handles CRE (Chainlink Runtime Environment) Go and TypeScript workflows, the CRE CLI, simulate, and deploy. Sends CRE Connect watchers, gas-less Smart Accounts, and dta.v2 to chainlink-cre-connect-skill. Sends private-document LLM inference to chainlink-confidential-ai-attester-skill. Keeps enclave workflow logic with…

not rated 127 +1 changed yesterday A Socket: passSnyk: passSkillSpector: warn 114 tokens original

aptos-explorer-urls

57

aptos-labs/explorer

Skill Claude CodeCodex

Map questions about Aptos blockchain entities (transactions, accounts, blocks, validators, coins, fungible assets, NFTs, Move objects, ANS names) to canonical Aptos Explorer URLs at explorer.aptoslabs.com. Use when a user asks to look up on-chain data on Aptos, wants to share or generate an explorer link, or needs to…

not rated 125 changed 29d ago A 98 tokens

memwal

58

MystenLabs/MemWal

Skill Claude CodeCodex

Walrus Memory SDK — portable agent memory that works across apps, sessions, and workflows. Use when users say: "add memory to my app" "portable agent memory" "integrate Walrus Memory" "AI agent memory" "memory across agents" "Walrus memory storage" "setup Walrus Memory" "recall memories".

not rated 121 changed 25d ago A 80 tokens original Apache-2.0

vibenet

59

base/skills

Skill Claude CodeCodex

Build on vibenet — Base's devnet for native account abstraction (EIP-8130), payer gas sponsorship (ERC-8168), and Cobalt 200ms native blocks. Use whenever the user mentions vibenet, EIP-8130, ERC-8168, 8130 accounts, native account abstraction, session keys, actors, policies, payers, gas sponsorship on Base, 200ms…

not rated 120 changed 1mo ago A SkillSpector: warn 192 tokens original MIT

rustchain-mcp

60

Scottcjn/rustchain-mcp

Skill Claude CodeCodex

This skill allows Claude Code to interact with the RustChain blockchain, monitor the network, and hunt for bounties.

not rated 119 +1 changed 1mo ago A 0 tokens original MIT

dexpaprika

61

coinpaprika/dexpaprika-mcp

MCP server Claude CodeCodexCursor +2

DEX and on-chain data: liquidity pools, token prices, swaps, and trading volume. Remote server at mcp.dexpaprika.com.

not rated 118 +1 yesterday A tokens not measured original MIT

yield-optimization

62

moonpay/skills

Skill Claude CodeCodex needs its repo

Multi-chain yield optimization via yield.xyz (StakeKit). Discover 2,988+ yield opportunities across 75+ blockchains, build deposit/withdrawal transactions with shell scripts, and sign them with a MoonPay wallet. Use when the user wants to earn yield, find the best lending or staking rate, enter/exit a position, or…

not rated 112 17d ago A 77 tokens original MIT

scv-scan

63

kadenzipfel/scv-scan

Skill Claude CodeCodex

Systematically audit Solidity smart contract codebases for security vulnerabilities using a 4-phase approach - load a vulnerability cheatsheet, sweep code with grep and semantic analysis, deep-validate candidates against reference files, and output a severity-ranked findings.

not rated 110 +1 8mo ago A 51 tokens

greatpie/smart-contract-audit-skill

Skill Claude CodeCodex

Script-backed, out-of-box auditing workflow for Solidity/EVM repositories based on EVMbench detect/patch/exploit methodology. Use when asked to audit a smart contract repo from a URL or local path, auto-prepare the environment, find high-severity loss-of-funds vulnerabilities, validate exploitability, propose safe…

not rated 100 8mo ago A 80 tokens

slv-grpc-geyser

65

ValidatorsDAO/slv

Skill Claude CodeCodex

Ansible playbooks and Jinja2 templates for deploying and managing Solana gRPC Geyser streaming nodes.

not rated 96 changed 20d ago A SkillSpector: pass 0 tokens original Apache-2.0

hertzflow

66

HertzFlow/hertzflow-skills

Skill Claude CodeCodex

An on-chain trading-research guide for examining token activity across Binance Alpha and several Ethereum-compatible blockchain networks. It covers trader or insider distribution, confirmed selling, wallet categories, unusual activity waves, and monitoring exports.

not rated 93 +1 4mo ago A Socket: warnSnyk: warnSkillSpector: warn 306 tokens original MIT

cryo-mcp

67

z80dev/cryo-mcp

MCP server Claude CodeCodexCursor +2

MCP server for querying Ethereum blockchain data using cryo. Runs locally from the cryo-mcp Python package.

not rated 91 1y ago A tokens not measured original MIT

agents-shipgate

68

ThreeMoonsLab/agents-shipgate

Skill Claude CodeCodex

Run prominent Agents Shipgate flows when a change touches what an AI agent can do: shipgate check, agents-shipgate verify, or shipgate audit --host. Use after adding or modifying MCP servers or tools, tool/function definitions (@tool, @functiontool), OpenAPI specs that describe agent tools, agent prompts, permission…

not rated 87 +1 changed 1mo ago A SkillSpector: pass 212 tokens original Apache-2.0

etherscan-flow

69

etherscan/skills

Skill Claude CodeCodex

Trace on-chain money flow via the Etherscan API V2 and write a single Etherscan Flow Case JSON file (nodes + edges). Input: a tx hash, a wallet/contract address, a business/entity scope ("show ENS DAO as a business"), pasted notes/draft, or a user-typed link (gist, tweet/X, article) with addresses and flow claims…

not rated 85 +3 2d ago A SkillSpector: warn 228 tokens original MIT

opprime-world-key

70

garyqlin/opprime-world-key

Skill Claude CodeCodex

A key for giving an AI agent an identity and place in Opprime World, an online virtual world. Registration provides an identity ID, land, a house, an email address, and an API key for supported operations.

not rated 80 4mo ago A 44 tokens original MIT

godot-solana-sdk

71

Virus-Axel/godot-solana-sdk

Skill Claude CodeCodex

Use this skill when building Solana-enabled games or apps in Godot 4 with the Godot Solana SDK. Triggers include: Solana transactions in GDScript, SPL tokens or NFTs in a Godot project, connecting browser or mobile wallets (Phantom, Solflare, Backpack) in a Godot game, calling Anchor smart contracts from GDScript…

not rated 78 1mo ago A 145 tokens original MIT

surf

72

asksurf-ai/surf-skills

Skill Claude CodeCodex

Your AI agent's crypto brain. One skill, 100+ commands across 14 data domains — real-time prices, wallets, DeFi, on-chain SQL, prediction markets, and more. Natural language in, structured data out. Install once, access everything. Use whenever the user needs crypto data, asks about prices/wallets/tokens/DeFi, wants…

not rated 77 changed 3d ago A Socket: passSnyk: warn 101 tokens

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: