A0nexus Bitcoin MCP runs on your own machine — the client starts it, so there is no endpoint to ping. 86 installs a week from npm. Last commit 13 Jul 2026.
Crypto (BTC/ETH) + ERCOT electricity data & forecasts as MCP tools. Pay-per-call via x402.
Today is the operative word: we check A0nexus Bitcoin MCP every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
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 a0nexus-bitcoin-mcp -- npx -y a0nexus-bitcoin-mcp
{
"mcpServers": {
"a0nexus-bitcoin-mcp": {
"command": "npx",
"args": [
"-y",
"a0nexus-bitcoin-mcp"
]
}
}
}
[mcp_servers.a0nexus-bitcoin-mcp]
command = "npx"
args = ["-y", "a0nexus-bitcoin-mcp"]
{
"mcpServers": {
"a0nexus-bitcoin-mcp": {
"command": "npx",
"args": [
"-y",
"a0nexus-bitcoin-mcp"
]
}
}
}
{
"servers": {
"a0nexus-bitcoin-mcp": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"a0nexus-bitcoin-mcp"
]
}
}
}
Optional settings from the registry entry, left out of the block above:
BTCI_API_URL (Base URL of the a0nexus API), BTCI_MCP_PAYMENT (Set to 'real' to enable the paid tools (otherwise only the free tools work)), BTCI_MCP_PRIVATE_KEY (Base wallet private key used to pay for paid tools when BTCI_MCP_PAYMENT=real).
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Answers built from our own checks of this server.