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Crypto

rog0x/mcp-crypto-tools

This server gives Claude cryptographic and encoding operations through five tools: hash (MD5, SHA family, HMAC), encode_decode (Base64, URL, HTML entities, hex, binary with auto-detection), generate_id (UUID v4, nanoid, ULID, CUID), password (generation with configurable charsets and strength checking with entropy calculation), and jwt (decode, expiry checks, unsigned token creation). It's built entirely on Node.js crypto without external dependencies. Reach for this when you need Claude to hash API signatures, decode tokens during debugging sessions, generate test identifiers, or analyze password strength. Everything runs locally through stdio transport, so no data leaves your machine.

tools
4
transport
STDIO
last updated
Mar 22, 2026
View on GitHub

Tools

4 tools

Public tool metadata for what this MCP can expose to an agent.

get_spreadReal-time price spread between Binance and OKX. Returns gross%, net% after fees, best route, and profitability verdict.2 params

Real-time price spread between Binance and OKX. Returns gross%, net% after fees, best route, and profitability verdict.

Parameters* required
symbolstring
Crypto symbol: BTC, ETH, SOL, etc.
taker_feenumber
Taker fee per side as decimal. Default 0.001
get_funding_rateCurrent perpetual funding rates on Binance and OKX. Returns 8h rate, annualized yield, next settlement time.1 params

Current perpetual funding rates on Binance and OKX. Returns 8h rate, annualized yield, next settlement time.

Parameters* required
symbolstring
Crypto symbol: BTC, ETH, SOL, etc.
get_cash_carryCash & Carry arbitrage yield calculator. Buy spot + short perp = near-zero market risk + funding income.2 params

Cash & Carry arbitrage yield calculator. Buy spot + short perp = near-zero market risk + funding income.

Parameters* required
capital_usdtnumber
Optional: capital in USDT to estimate profit.
symbolstring
Crypto symbol: BTC, ETH, SOL, etc.
get_exchange_statusLive operational status of Binance and OKX. Use when user reports failed orders or unexpected errors.

Live operational status of Binance and OKX. Use when user reports failed orders or unexpected errors.

No parameter schema in public metadata yet.

Sponsors

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Readme

mcp-crypto-tools

Cryptography and encoding tools for AI agents, served via the Model Context Protocol (MCP).

Tools

hash

Hash text using MD5, SHA-1, SHA-256, SHA-512, or HMAC. Compare two hash values. Compute all algorithms at once.

Actions: hash, hmac, compare, hash_all

encode_decode

Encode and decode text using Base64, URL encoding, HTML entities, hex, or binary. Auto-detect encoding format.

Actions: base64_encode, base64_decode, url_encode, url_decode, html_encode, html_decode, hex_encode, hex_decode, binary_encode, binary_decode, detect

generate_id

Generate unique identifiers: UUID v4, nanoid, ULID, CUID, or random strings with configurable length and charset.

Types: uuid, nanoid, ulid, cuid, random

password

Generate secure passwords with configurable character sets, length, and count. Check password strength with entropy calculation and crack time estimation.

Actions: generate, check_strength

jwt

Decode JWT tokens to inspect header and payload, check expiry status, or create unsigned JWTs for testing.

View the full README on GitHub

Details

Repository
github.com/rog0x/mcp-crypto-tools
Category
Finance & Commerce
Package
@rog0x/mcp-crypto-tools
Transport
STDIO
Registry
MCP registry, active

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