Web3 and blockchain for Claude Code

4,879 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 · Python · React · TypeScript · docker · Go · Rust · Localization · nextjs · bun · PostgreSQL

orderbook-depth

961

Br0ski777/orderbook-depth-x402

MCP server Claude CodeCodexCursor +2

Uniswap V3 pool liquidity depth analysis — price impact at 1/2/5/10% levels. x402. Remote server at orderbook-depth.api.klymax402.com.

not rated 0 10d ago A tokens not measured original MIT

solana-fees

962

Br0ski777/solana-fees-x402

MCP server Claude CodeCodexCursor +2

Solana priority fees at 6 levels, cost in SOL/USD, congestion. x402. Remote server at solana-fees.api.klymax402.com.

not rated 0 10d ago A tokens not measured original MIT

solana-launches

963

Br0ski777/solana-launches-x402

MCP server Claude CodeCodexCursor +2

New Solana token launches — pump.fun, Raydium, PumpSwap. Price, liquidity, volume. x402. Remote server at solana-launches.api.klymax402.com.

not rated 0 10d ago A tokens not measured original MIT

solana-pools

964

Br0ski777/solana-pools-x402

MCP server Claude CodeCodexCursor +2

Solana DEX pool liquidity depth — TVL, slippage, volume, Raydium/Orca/Meteora. x402. Remote server at solana-pools.api.klymax402.com.

not rated 0 10d ago A tokens not measured original MIT

token-holders

965

Br0ski777/token-holders-x402

MCP server Claude CodeCodexCursor +2

Token holder distribution — top holders, whale count, concentration score. x402. Remote server at token-holders.api.klymax402.com.

not rated 0 10d ago A tokens not measured original MIT

token-ohlcv

966

Br0ski777/token-ohlcv-x402

MCP server Claude CodeCodexCursor +2

Historical OHLCV candles for any token. CoinGecko + GeckoTerminal on-chain. x402. Remote server at token-ohlcv.api.klymax402.com.

not rated 0 10d ago A tokens not measured original MIT

wallet-portfolio

967

Br0ski777/wallet-portfolio-x402

MCP server Claude CodeCodexCursor +2

Crypto wallet balances, ERC-20 tokens, USD values across Base and Ethereum. x402. Remote server at wallet-portfolio.api.klymax402.com.

not rated 0 10d ago A tokens not measured original MIT

whale-alert

968

Br0ski777/whale-alert-x402

MCP server Claude CodeCodexCursor +2

Track large on-chain whale transactions on Ethereum and Base. x402 micropayment. Remote server at whale-alert.api.klymax402.com.

not rated 0 10d ago A tokens not measured original MIT

mica-crypto-mcp

969

CSOAI-ORG/mica-crypto-mcp

MCP server Claude CodeCodexCursor +2

Markets in Crypto-Assets (MiCA) Regulation (EU) 2023/1114 compliance for EU crypto-asset issuers, exchanges, custodians, and CASPs. Runs locally from the mica-crypto-mcp Python package.

not rated 0 10d ago A tokens not measured original MIT

clawallex-mcp

970

clawallex/clawallex-mcp

MCP server Claude CodeCodexCursor +2

MCP Server for Clawallex payment API - Pay for anything with USDC virtual cards. Runs locally from the @clawallex/mcp-server npm package. Needs 2 environment variables to run.

not rated 0 5mo ago A tokens not measured

taskmarket

971

Codecraft-Ops/taskmarket-mcp

Skill Claude CodeCodex

Discover funded agent work, earn USDC, or delegate suitable work through TaskMarket with explicit spend approval.

not rated 0 1mo ago A 24 tokens original MIT

mcp

972

Coinlooter/payflowagent-mcp

MCP server Claude CodeCodexCursor +2

PayFlowAgent suite: token intel, DeFi, enrich, Base trust (x402). Runs locally from the payflowagent-mcp npm package. Needs 6 environment variables to run.

not rated 0 2mo ago A tokens not measured original MIT

mcp-address-latest

973

CryptoAPIs-io/cryptoapis-mcp-address-latest

MCP server Claude CodeCodexCursor +2

MCP server for current balance and state of EVM, UTXO, Solana, XRP, Kaspa addresses via Crypto APIs. Runs locally from the @cryptoapis-io/mcp-address-latest npm package. Needs 1 environment variable to run.

not rated 0 1mo ago A tokens not measured

mcp-block-data

974

CryptoAPIs-io/cryptoapis-mcp-block-data

MCP server Claude CodeCodexCursor +2

MCP server for retrieving block-level data from EVM, UTXO, and XRP blockchains via Crypto APIs. Runs locally from the @cryptoapis-io/mcp-block-data npm package. Needs 1 environment variable to run.

not rated 0 1mo ago A tokens not measured

mcp-blockchain-events

975

CryptoAPIs-io/cryptoapis-mcp-blockchain-events

MCP server Claude CodeCodexCursor +2

MCP server for subscribing to and managing on-chain event webhooks via Crypto APIs. Runs locally from the @cryptoapis-io/mcp-blockchain-events npm package. Needs 1 environment variable to run.

not rated 0 1mo ago A tokens not measured

mcp-blockchain-fees

976

CryptoAPIs-io/cryptoapis-mcp-blockchain-fees

MCP server Claude CodeCodexCursor +2

MCP server for fee recommendations and gas estimation on EVM, UTXO, XRP, Tezos, Solana. Runs locally from the @cryptoapis-io/mcp-blockchain-fees npm package. Needs 1 environment variable to run.

not rated 0 1mo ago A tokens not measured

mcp-broadcast

977

CryptoAPIs-io/cryptoapis-mcp-broadcast

MCP server Claude CodeCodexCursor +2

MCP server for broadcasting signed raw transactions to multiple blockchains via Crypto APIs. Runs locally from the @cryptoapis-io/mcp-broadcast npm package. Needs 1 environment variable to run.

not rated 0 1mo ago A tokens not measured

mcp-contracts

978

CryptoAPIs-io/cryptoapis-mcp-contracts

MCP server Claude CodeCodexCursor +2

MCP server for smart contract ABIs and on-chain data from EVM and Solana via Crypto APIs. Runs locally from the @cryptoapis-io/mcp-contracts npm package. Needs 1 environment variable to run.

not rated 0 1mo ago A tokens not measured

mcp-market-data

979

CryptoAPIs-io/cryptoapis-mcp-market-data

MCP server Claude CodeCodexCursor +2

MCP server for cryptocurrency asset prices, exchange rates, and market metadata via Crypto APIs. Runs locally from the @cryptoapis-io/mcp-market-data npm package. Needs 1 environment variable to run.

not rated 0 1mo ago A tokens not measured

mcp-signer

980

CryptoAPIs-io/cryptoapis-mcp-signer

MCP server Claude CodeCodexCursor +2

MCP server for local transaction signing on EVM, UTXO, Tron, and XRP — no API calls needed. Runs locally from the @cryptoapis-io/mcp-signer npm package.

not rated 0 1mo ago A tokens not measured

mcp-simulate

981

CryptoAPIs-io/cryptoapis-mcp-simulate

MCP server Claude CodeCodexCursor +2

MCP server for dry-run Ethereum transaction simulation via Crypto APIs. Runs locally from the @cryptoapis-io/mcp-simulate npm package. Needs 1 environment variable to run.

not rated 0 1mo ago A tokens not measured

mcp-transactions-data

982

CryptoAPIs-io/cryptoapis-mcp-transactions-data

MCP server Claude CodeCodexCursor +2

MCP server for transaction lookup across EVM, UTXO, Solana, XRP, Kaspa via Crypto APIs. Runs locally from the @cryptoapis-io/mcp-transactions-data npm package. Needs 1 environment variable to run.

not rated 0 1mo ago A tokens not measured

mcp-utils

983

CryptoAPIs-io/cryptoapis-mcp-utils

MCP server Claude CodeCodexCursor +2

MCP server for address derivation and encoding utilities across multiple blockchains via Crypto APIs. Runs locally from the @cryptoapis-io/mcp-utils npm package. Needs 1 environment variable to run.

not rated 0 1mo ago A tokens not measured

mcp-x402-accept

984

CryptoAPIs-io/cryptoapis-mcp-x402-accept

MCP server Claude CodeCodexCursor +2

Self-hosted MCP proxy that puts an x402 paywall in front of an existing MCP server. Runs locally from the @cryptoapis-io/mcp-x402-accept npm package.

not rated 0 1mo ago A tokens not measured original MIT