Web3 and blockchain for Claude Code

4,895 mods tagged Web3 and blockchain that install into Claude Code, 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 Claude Code: anthropic · Git and workflow · React · Python · TypeScript · docker · Localization · Go · Rust · nextjs · bun · PostgreSQL

system-prompts

01

can1357/oh-my-pi

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.

not rated 30k +816 today A Snyk: pass 40 tokens original MIT

pydantic/pydantic-ai

Skill Claude CodeCodex

Build AI agents with Pydantic AI — tools, capabilities (including on-demand loading), 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, defer capability loading, stream output, define agents…

not rated 20k +39 changed 2d ago A Snyk: pass 85 tokens original MIT

webiny/webiny-js

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…

not rated 8.0k +1 today A 297 tokens

MystenLabs/sui

Skill Claude CodeCodex

Use when auditing, reviewing, or hunting for vulnerabilities in Move code on Sui. Applies equally to source code (.move files) and to disassembly of compiled bytecode (on-chain packages). A checklist of invariants whose VIOLATION causes exploitable bugs: access control & capabilities, struct abilities & type safety…

not rated 7.7k +2 yesterday A 174 tokens original Apache-2.0

trailofbits/skills

Plugin Claude Code

Lists 37 plugins

Plugin marketplace listing 42 plugins: audit-context-building, building-secure-contracts, burpsuite-project-parser, claude-in-chrome-troubleshooting, constant-time-analysis.

not rated 7.0k +44 changed 5d ago A tokens not measured CC-BY-SA-4.0

tres-finance-plugin

06

anthropics/claude-plugins-community

Plugin Claude Code ✓ vendor

Bundles 22 skills · 3,470 tokens together

The first official TRES Finance plugin for Claude Code — blockchain accounting workflows, ledger management, and transaction analysis. Connects to the hosted TRES Finance MCP server; collects no usage telemetry. Privacy: https://tres.finance/privacy-policy/.

not rated 3.5k +327 12d ago A tokens not measured original Apache-2.0

agentboard

07

hyperspaceai/agi

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.

not rated 2.0k +4 changed today A 68 tokens original MIT

questflowai/investorskills

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.

not rated 1.8k +47 15d ago A 56 tokens original MIT

agent-kit

09

sendaifun/solana-agent-kit

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.

not rated 1.7k +2 3mo ago A tokens not measured original Apache-2.0

amethyst

10

vitorpamplona/amethyst

Skill Claude CodeCodex

Build customized Amethyst Nostr clients for Android. Fork, rebrand, customize, and distribute your own version.

not rated 1.6k yesterday C 0 tokens original MIT

starknet-js

11

starknet-io/starknet.js

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…

not rated 1.3k 2d ago A 79 tokens original MIT

adapter-author

12

DefiLlama/DefiLlama-Adapters

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…

not rated 1.2k today A 103 tokens

solana-mcp-vybe

13

vybenetwork/solana-mcp-vybe

MCP server Claude CodeCodexCursor +2

MCP server "solana-mcp-vybe", hosted remotely at mcp.vybenetwork.xyz, as configured in vybenetwork/solana-mcp-vybe.

not rated 1.2k 13d ago A tokens not measured

bankr

14

BankrBot/skills

Skill Claude CodeCodex

AI-powered crypto trading agent, wallet API, and LLM gateway via natural language. Use when the user wants to trade crypto, trade tokenized stocks and ETFs (spot or leveraged), check portfolio balances (with PnL and NFTs), view token prices, search tokens, research token holders, transfer crypto, manage NFTs, use…

not rated 1.2k +1 changed 6d ago A Socket: passSnyk: fail 196 tokens

fizz

15

pashov/skills

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".

not rated 1.1k +11 1mo ago A 60 tokens original MIT

jolt

16

a16z/jolt

Skill Claude Code

Wrap a Rust function in a Jolt zero-knowledge proof.

not rated 1.0k changed 3d ago A 15 tokens original Apache-2.0

binance/binance-skills-hub

Skill Claude CodeCodex

Query Ondo tokenized US stock data on Binance Web3. Covers: supported stock token list, RWA metadata (company info, attestation reports), market and per-asset trading status (with corporate action codes for earnings, dividends, splits), real-time on-chain data (token price, holders, circulating supply, market cap), US…

not rated 1.0k +10 4d ago A Socket: passSnyk: warn 216 tokens

btc-5m-live

18

Novals83/5min-btc-polymarket

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.

not rated 901 +150 4mo ago A 55 tokens

swapper-deposit

19

swapperfinance/swapper-toolkit

Skill Claude Code

Deposit and bridge funds into a wallet or protocol using Swapper Finance. Handles fiat on-ramp (card payments via Mastercard, Visa, Apple Pay, Google Pay), crypto transfers, and cross-chain bridging via Chainlink CCIP — directly into lending, staking, and liquidity protocols. Supports Ethereum, Base, Arbitrum…

not rated 846 5mo ago A Socket: passSnyk: warn 158 tokens original MIT

solana-dev

20

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…

not rated 560 +1 changed 3d ago A Socket: passSnyk: warn 250 tokens original MIT

base

21

Tommy-yw/RunbookHermes

Skill Claude CodeCodex

Query Base (Ethereum L2) blockchain data with USD pricing — wallet balances, token info, transaction details, gas analysis, contract inspection, whale detection, and live network stats. Uses Base RPC + CoinGecko. No API key required.

not rated 543 3mo ago A 51 tokens original MIT

agent-onboarding

22

Nunchi-trade/agent-cli

Skill Claude CodeCodex needs its repo

First-time setup — from zero to first trade on Hyperliquid.

not rated 517 +2 2mo ago A 17 tokens original MIT

gmgn-cli

23

GMGNAI/gmgn-skills

Plugin Claude Code

Bundles 13 skills · 3,137 tokens together

GMGN OpenAPI skills — token info, market data, wallet portfolio & copy-trade scoring, and swap.

not rated 509 +9 3d ago A tokens not measured original MIT

solana-foundation/solana-com

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…

not rated 501 +2 2d ago A 96 tokens GPL-3.0

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: