MCP Broadcast runs on your own machine — the client starts it, so there is no endpoint to ping. 108 installs a week from npm. Last commit 28 Sep 2026.
MCP server for broadcasting signed raw transactions to multiple blockchains via Crypto APIs
Nothing serious here today
Today is the operative word: we check MCP Broadcast every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
Connect this server
This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.
claude mcp add mcp-broadcast -e 'CRYPTOAPIS_API_KEY=<CRYPTOAPIS_API_KEY>' -- npx -y @cryptoapis-io/mcp-broadcast{
"mcpServers": {
"mcp-broadcast": {
"command": "npx",
"args": [
"-y",
"@cryptoapis-io/mcp-broadcast"
],
"env": {
"CRYPTOAPIS_API_KEY": "<CRYPTOAPIS_API_KEY>"
}
}
}
}[mcp_servers.mcp-broadcast]
command = "npx"
args = ["-y", "@cryptoapis-io/mcp-broadcast"]
env = { CRYPTOAPIS_API_KEY = "<CRYPTOAPIS_API_KEY>" }{
"mcpServers": {
"mcp-broadcast": {
"command": "npx",
"args": [
"-y",
"@cryptoapis-io/mcp-broadcast"
],
"env": {
"CRYPTOAPIS_API_KEY": "<CRYPTOAPIS_API_KEY>"
}
}
}
}{
"servers": {
"mcp-broadcast": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@cryptoapis-io/mcp-broadcast"
],
"env": {
"CRYPTOAPIS_API_KEY": "<CRYPTOAPIS_API_KEY>"
}
}
}
}Put your own value in place of
<CRYPTOAPIS_API_KEY> (Crypto APIs API key).
The author’s registry entry marks it as required.
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MCP Broadcast — questions
Answers built from our own checks of this server.