Is Cryptoapis Mcp Blockchain Events free?

Yes, Cryptoapis Mcp Blockchain Events is free to use.

How do I install Cryptoapis Mcp Blockchain Events?

Cryptoapis Mcp Blockchain Events is a local plugin. Install it using npm package: @cryptoapis-io/mcp-blockchain-events and add the generated configuration snippet to your AI app's MCP config file. Then restart your AI app.

Is Cryptoapis Mcp Blockchain Events safe to use?

Yes. Cryptoapis Mcp Blockchain Events passed MCP Marketplace's automated security scan with a score of 10/10 (low risk). Every server on MCP Marketplace is security-scanned before it's listed; see the full security report on this page for the findings and permissions.

What credentials does Cryptoapis Mcp Blockchain Events need?

Cryptoapis Mcp Blockchain Events requires the following credentials or environment variables: CRYPTOAPIS_API_KEY. You can find setup instructions on the server detail page.

What AI apps work with Cryptoapis Mcp Blockchain Events?

Cryptoapis Mcp Blockchain Events uses the Model Context Protocol (MCP) and works with any MCP-compatible AI app, including Claude, ChatGPT / Codex, Gemini, Copilot, Cursor, and more.

Back to Browse

Cryptoapis Mcp Blockchain Events MCP Server

by cryptoapis-io

FinanceLow Risk10.0Local

Free

MCP server for subscribing to and managing on-chain event webhooks via Crypto APIs

About

MCP server for subscribing to and managing on-chain event webhooks via Crypto APIs

Security Report

10.0

Low Risk10.0Low Risk

Valid MCP server (2 strong, 3 medium validity signals). No known CVEs in dependencies. Package registry verified. Imported from the Official MCP Registry. Trust signals: trusted author (21/21 approved).

12 files analyzed · 1 issue found

Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.

What You'll Need

Set these up before or after installing:

Crypto APIs API keyRequired

Environment variable: CRYPTOAPIS_API_KEY

How to Install

Add this to your MCP configuration file:

{
  "mcpServers": {
    "io-github-cryptoapis-io-mcp-blockchain-events": {
      "env": {
        "CRYPTOAPIS_API_KEY": "your-cryptoapis-api-key-here"
      },
      "args": [
        "-y",
        "@cryptoapis-io/mcp-blockchain-events"
      ],
      "command": "npx"
    }
  }
}

Getting Started

Once installed, try these example prompts and explore these capabilities:

1"Subscribe to new block events on Ethereum mainnet and notify my webhook URL"
2"Monitor address 0xABC... for any incoming coins on Polygon"
3"List all my active blockchain event subscriptions"
4"Delete the webhook subscription with ID xyz"
5Tool: blockchain_events_create — Create webhook subscriptions for on-chain events
6Tool: blockchain_events_manage — List, get, activate, and delete subscriptions

Documentation

View on GitHub

From the project's GitHub README.

@cryptoapis-io/mcp-blockchain-events

MCP server for Crypto APIs Blockchain Events product. Create and manage webhook subscriptions for on-chain events.

API Version: Compatible with Crypto APIs version 2024-12-12

Features

Create webhook subscriptions for blockchain events (new block, confirmed transaction, address coins, token transfers, etc.)
List, get, activate, and delete existing subscriptions
Supports all major blockchains (EVM, UTXO, Solana, XRP)

Prerequisites

Node.js 18+
Crypto APIs account and API key (sign up | get API key)

Installation

npm install @cryptoapis-io/mcp-blockchain-events

Or install all Crypto APIs MCP servers: npm install @cryptoapis-io/mcp

Usage

# Run with API key
npx @cryptoapis-io/mcp-blockchain-events --api-key YOUR_API_KEY

# Or use environment variable
export CRYPTOAPIS_API_KEY=YOUR_API_KEY
npx @cryptoapis-io/mcp-blockchain-events

# HTTP transport
npx @cryptoapis-io/mcp-blockchain-events --transport http --port 3000 --api-key YOUR_API_KEY

Claude Desktop

Add to your Claude Desktop config (~/Library/Application Support/Claude/claude_desktop_config.json on macOS, %APPDATA%\Claude\claude_desktop_config.json on Windows):

{
  "mcpServers": {
    "cryptoapis-blockchain-events": {
      "command": "npx",
      "args": ["-y", "@cryptoapis-io/mcp-blockchain-events"],
      "env": {
        "CRYPTOAPIS_API_KEY": "your_api_key_here"
      }
    }
  }
}

Cursor

Add to .cursor/mcp.json (project) or ~/.cursor/mcp.json (global):

{
  "mcpServers": {
    "cryptoapis-blockchain-events": {
      "command": "npx",
      "args": ["-y", "@cryptoapis-io/mcp-blockchain-events"],
      "env": {
        "CRYPTOAPIS_API_KEY": "your_api_key_here"
      }
    }
  }
}

MCP Inspector

npx @modelcontextprotocol/inspector npx @cryptoapis-io/mcp-blockchain-events --api-key YOUR_API_KEY

n8n

Start the server in HTTP mode:

npx @cryptoapis-io/mcp-blockchain-events --transport http --port 3000 --api-key YOUR_API_KEY

In your n8n workflow, add an AI Agent node
Under Tools, add an MCP Client Tool and set the URL to http://localhost:3000/mcp

All servers default to port 3000. Use --port to assign different ports when running multiple servers.

Available Tools

`blockchain_events_manage`

Manage existing webhook subscriptions.

Action	Description
`list-subscriptions`	List all webhook subscriptions
`get-subscription`	Get details of a specific subscription
`delete-subscription`	Delete a subscription
`activate-subscription`	Activate a paused subscription

`blockchain_events_create`

Create new webhook subscriptions for blockchain events.

Parameter	Description
`eventType`	Event type to subscribe to (e.g., new block, confirmed transaction, address coins)
`callbackUrl`	URL to receive webhook notifications
`blockchain`	Target blockchain (optional, depends on event type)
`network`	Target network (optional, depends on event type)
`address`	Address to monitor (optional, depends on event type)

CLI Arguments

Argument	Description	Default
`--api-key`	Crypto APIs API key	`CRYPTOAPIS_API_KEY` env var
`--transport`	Transport type: `stdio` or `http`	`stdio`
`--host`	HTTP host	`0.0.0.0`
`--port`	HTTP port	`3000`
`--path`	HTTP path	`/mcp`
`--stateless`	Enable stateless HTTP mode	`false`

HTTP API Key Modes

When using HTTP transport, the server supports two API key modes:

With --api-key: The key is used for all requests. x-api-key request headers are ignored.
Without --api-key: Each request must include an x-api-key header with a valid Crypto APIs key. This enables hosting a public server where each user provides their own key.

# Per-request key mode (multi-tenant)
npx @cryptoapis-io/mcp-blockchain-events --transport http --port 3000
# Clients send x-api-key header with each request

Stdio transport always requires an API key at startup.

Important: API Key Required

Warning: Making requests without a valid API key — or with an incorrect one — may result in your IP being banned from the Crypto APIs ecosystem. Always ensure a valid API key is configured before starting any server.

Remote MCP Server

Crypto APIs provides an official remote MCP server with all tools available via HTTP Streamable transport at https://ai.cryptoapis.io/mcp. Pass your API key via the x-api-key header — no installation required.

License

MIT

Reviews

No reviews yet

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Cryptoapis Mcp Blockchain Events MCP Server

About

Security Report

Findings (1)

What You'll Need

How to Install

Getting Started

Documentation

@cryptoapis-io/mcp-blockchain-events

Features

Prerequisites

Installation

Usage

Claude Desktop

Cursor

MCP Inspector

n8n

Available Tools

blockchain_events_manage

blockchain_events_create

CLI Arguments

HTTP API Key Modes

Important: API Key Required

Remote MCP Server

License

Reviews

No reviews yet

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Toleno

mcp-creator-python

MarkItDown

MCP Marketplace

FinAgent

Google Workspace MCP

`blockchain_events_manage`

`blockchain_events_create`