Blockchain data for EVM and Solana: balances, tokens, prices, DeFi and RPC via free-tier vendors
Connect Runs on your machine
claude mcp add onchain-data-mcp -e ALCHEMY_API_KEY=<ALCHEMY_API_KEY> -e HELIUS_API_KEY=<HELIUS_API_KEY> -e COINGECKO_API_KEY=<COINGECKO_API_KEY> -e MORALIS_API_KEY=<MORALIS_API_KEY> -- docker run -i --rm ghcr.io/madlabs-tech/onchain-data-mcp:0.2.1{
"mcpServers": {
"onchain-data-mcp": {
"command": "docker",
"args": [
"run",
"-i",
"--rm",
"ghcr.io/madlabs-tech/onchain-data-mcp:0.2.1"
],
"env": {
"ALCHEMY_API_KEY": "<ALCHEMY_API_KEY>",
"HELIUS_API_KEY": "<HELIUS_API_KEY>",
"COINGECKO_API_KEY": "<COINGECKO_API_KEY>",
"MORALIS_API_KEY": "<MORALIS_API_KEY>"
}
}
}
}{
"mcpServers": {
"onchain-data-mcp": {
"command": "docker",
"args": [
"run",
"-i",
"--rm",
"ghcr.io/madlabs-tech/onchain-data-mcp:0.2.1"
],
"env": {
"ALCHEMY_API_KEY": "<ALCHEMY_API_KEY>",
"HELIUS_API_KEY": "<HELIUS_API_KEY>",
"COINGECKO_API_KEY": "<COINGECKO_API_KEY>",
"MORALIS_API_KEY": "<MORALIS_API_KEY>"
}
}
}
}{
"servers": {
"onchain-data-mcp": {
"type": "stdio",
"command": "docker",
"args": [
"run",
"-i",
"--rm",
"ghcr.io/madlabs-tech/onchain-data-mcp:0.2.1"
],
"env": {
"ALCHEMY_API_KEY": "<ALCHEMY_API_KEY>",
"HELIUS_API_KEY": "<HELIUS_API_KEY>",
"COINGECKO_API_KEY": "<COINGECKO_API_KEY>",
"MORALIS_API_KEY": "<MORALIS_API_KEY>"
}
}
}
}Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.
Tools
This server runs locally, so its tools are listed by your MCP client once it starts.
Environment variables
| Name | Description |
|---|---|
ALCHEMY_API_KEYOptional, secret | Optional Alchemy key: EVM RPC, token balances and transfers. |
HELIUS_API_KEYOptional, secret | Optional Helius key: Solana RPC and token data. |
COINGECKO_API_KEYOptional, secret | Optional CoinGecko key: token prices and market data. |
MORALIS_API_KEYOptional, secret | Optional Moralis key: wallet history and token data. |
Details
| Package | ghcr.io/madlabs-tech/onchain-data-mcp:0.2.1 (OCI, stdio) |
| Package | https://github.com/madlabs-tech/onchain-data-mcp/releases/download/v0.2.1/onchain-data-mcp.mcpb (MCPB, stdio) |
| First published | 26 Sep 2026 |
| Last updated | 26 Sep 2026 |
| Registry name | io.github.madlabs-tech/onchain-data-mcp |
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