HTTP client — CryptoApisHttpClient for making authenticated REST API calls
Error types — CryptoApisError with code, status, and details
Blockchain constants — BLOCKCHAIN_NETWORKS, EVM_BLOCKCHAINS, UTXO_BLOCKCHAINS, chain IDs, network mappings
Zod schemas — Blockchain/network schemas, cursor/offset pagination, request metadata
Credits — formatCreditsForDescription() and credit types for tool cost metadata
Confirmation — Token-based confirmation flow for dangerous actions (sync, delete, activate)
Config — loadSharedConfig() with support for per-request API keys via runWithApiKey()
System info tool — Built-in system_info tool providing blockchain, credits, and API documentation

Installation

npm install @cryptoapis-io/mcp-shared

Usage

This package is primarily used as a dependency by other @cryptoapis-io/mcp-* packages. You typically don't use it directly unless building a custom MCP server for Crypto APIs.

import {
    CryptoApisHttpClient,
    loadSharedConfig,
    EVM_BLOCKCHAINS,
    UTXO_BLOCKCHAINS,
    EvmBlockchainSchema,
    CursorPaginationSchema,
    formatCreditsForDescription,
} from "@cryptoapis-io/mcp-shared";

const config = loadSharedConfig();
const client = new CryptoApisHttpClient(config);

const result = await client.request("GET", "/blockchain-data/ethereum/mainnet/addresses/{address}/balance");