Nuthatch MCP
Nuthatch is a self-hosted, AI-native blockchain indexer that turns an EVM contract's history into a local SQL database. It includes a built-in MCP server providing tools for schema discovery, SQL execution, entity lookup, and balance queries, allowing agents to interact with indexed on-chain data locally without third-party services.
Package and access
Local package with source-attributed installation metadata. Koskamo does not execute packages during review.
Checks and signals
Each line is separate evidence, not a trust score.
- Popularity 7 GitHub stars
What you can do with it
- Discover schema of indexed EVM contracts
- Execute analytical SQL queries on chain history
- Lookup specific entities and balances
- Diff changes across block ranges
Source and maintenance
- Last repository push
- Latest release
- v5.16.0
- Maintenance checked
Packages and installation
Source-provided package data. Koskamo has not executed or live-probed this package.
ghcr.io/nightswatchhq/nuthatch:4.0.0
{
"transport": "stdio",
"identifier": "ghcr.io/nightswatchhq/nuthatch:4.0.0",
"registryType": "oci",
"packageArguments": [
{
"type": "positional",
"value": "mcp",
"valueHint": "command"
},
{
"name": "--url",
"type": "named",
"default": "http://host.docker.internal:8288",
"description": "Base URL of the running `nuthatch dev` HTTP API"
}
],
"runtimeArguments": [
{
"name": "--add-host",
"type": "named",
"value": "host.docker.internal:host-gateway",
"description": "Lets the container reach the `nuthatch dev` API on the host (needed on Linux; harmless on Docker Desktop)"
}
]
}Tools
Reported by the attributed source; not independently observed by Koskamo.
Maintenance history
Public check and source-refresh events. Editorial and ownership records remain private.
- · repository · passed · metadata changed · updated
- · backfill · recorded · Pre-expansion baseline; unobserved rich metadata remains unknown
Connect from your client
Each snippet configures the same source-provided package; replace placeholders before use.
Cursor
{
"mcpServers": {
"nuthatch-mcp": {
"command": "docker",
"args": [
"run",
"-i",
"--rm",
"ghcr.io/nightswatchhq/nuthatch:4.0.0",
"mcp"
]
}
}
}Cline
{
"mcpServers": {
"nuthatch-mcp": {
"command": "docker",
"args": [
"run",
"-i",
"--rm",
"ghcr.io/nightswatchhq/nuthatch:4.0.0",
"mcp"
]
}
}
}VS Code
{
"servers": {
"nuthatch-mcp": {
"type": "stdio",
"command": "docker",
"args": [
"run",
"-i",
"--rm",
"ghcr.io/nightswatchhq/nuthatch:4.0.0",
"mcp"
]
}
}
}Claude Desktop
{
"mcpServers": {
"nuthatch-mcp": {
"command": "docker",
"args": [
"run",
"-i",
"--rm",
"ghcr.io/nightswatchhq/nuthatch:4.0.0",
"mcp"
]
}
}
}Let your agent find its tools
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