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Broadcast signed raw transactions to multiple blockchains via Crypto APIs
About
Broadcast signed raw transactions to blockchain networks using your AI assistant. This hosted MCP server connects directly to the Crypto APIs Broadcast product — no local installation needed. Supports EVM chains (Ethereum, BSC, Polygon, Avalanche, Arbitrum, Base, Optimism, Tron), UTXO chains (Bitcoin, Litecoin, Dogecoin, Dash, Zcash, Bitcoin Cash), Solana, and XRP. Submit your signed hex-encoded transaction and receive the transaction hash instantly. Requires a Crypto APIs API key passed via the x-api-key header.
What You'll Need
Set these up before or after installing:
CryptoAPIs API key. Sign up at cryptoapis.io to get your free key — passed via the x-api-key headerRequired
Environment variable: x-api-key
Sign up freeGetting Started
Once installed, try these example prompts and explore these capabilities:
- 1"Broadcast this signed Ethereum transaction hex to mainnet"
- 2"Submit this signed Bitcoin transaction"
- 3"Push this signed Polygon transaction and give me the hash"
- 4Tool: broadcast_transaction_evm — Broadcast a signed raw transaction to an EVM network
- 5Tool: broadcast_transaction_utxo — Broadcast a signed raw UTXO transaction
- 6Tool: broadcast_transaction_solana — Broadcast a signed Solana transaction
- 7Tool: broadcast_transaction_xrp — Broadcast a signed XRP transaction
How to Connect
Remote Plugin
No local installation needed. Your AI client connects to the remote endpoint directly.
Add this to your MCP configuration to connect:
{
"mcpServers": {
"cryptoapis-broadcast-mcp-http-server": {
"env": {
"x-api-key": "your-x-api-key-here"
},
"url": "https://ai.cryptoapis.io/mcp/broadcast"
}
}
}Security Report
9.0
Low Risk9.0Low RiskRemote MCP endpoint verified (409ms response). Server: cryptoapis-mcp-http-server. 2 trust signals: valid MCP protocol, requires auth. No security issues detected.
Endpoint probed · 1 finding
Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.
Permissions Required
This plugin requests these system permissions. Most are normal for its category.
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