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mcp-sparql — MCP server exposing SPARQL query functionalities for LLMs.
mcp-name: io.github.daedalus/mcp-sparql
Install
pip install mcp-sparqlUsage
As an MCP Server
Add to your MCP configuration (e.g., ~/.config/claude/mcp.json):
{
"mcpServers": {
"mcp-sparql": {
"command": "mcp-sparql"
}
}
}Available Tools
| Tool | Description |
|---|---|
sparql_query | Execute SPARQL SELECT queries (table or JSON output) |
sparql_ask | Execute SPARQL ASK queries (boolean result) |
sparql_construct | Execute SPARQL CONSTRUCT queries (Turtle or JSON-LD) |
sparql_describe | Execute SPARQL DESCRIBE queries (Turtle or JSON-LD) |
sparql_validate | Validate SPARQL query syntax without executing |
sparql_list_graphs | List named graphs on a SPARQL endpoint |
sparql_get_prefixes | Get common prefixes for a SPARQL endpoint |
Examples
Query Wikidata:
sparql_query:
endpoint: "https://query.wikidata.org/sparql"
query: "SELECT ?item ?itemLabel WHERE { ?item wdt:P31 wd:Q5 . ?item rdfs:label ?itemLabel . FILTER(LANG(?itemLabel) = 'en') } LIMIT 5"Check if an entity exists:
sparql_ask:
endpoint: "https://query.wikidata.org/sparql"
query: "ASK { wd:Q42 wdt:P31 wd:Q5 }"Validate a query:
sparql_validate:
query: "SELECT ?s WHERE { ?s ?p ?o }"List named graphs:
sparql_list_graphs:
endpoint: "https://query.wikidata.org/sparql"Get common prefixes:
sparql_get_prefixes:
endpoint: "https://query.wikidata.org/sparql"Resources
| Resource | URI | Description |
|---|---|---|
| Common Prefixes | sparql://common-prefixes | Standard SPARQL namespace prefixes |
API
sparql_query
Execute a SPARQL SELECT query.
Parameters:
endpoint(str): SPARQL endpoint URLquery(str): SPARQL SELECT querytimeout(int, default=30): Query timeout in secondsoutput_format(str, default="table"): "table" for Markdown, "json" for JSONheaders(dict, optional): HTTP headers for authenticationmax_rows(int, default=1000): Maximum result rows
sparql_ask
Execute a SPARQL ASK query. Returns "true" or "false".
sparql_construct
Execute a SPARQL CONSTRUCT query. Returns RDF triples.
Additional parameters:
output_format(str, default="turtle"): "turtle" or "json"
sparql_describe
Execute a SPARQL DESCRIBE query. Returns RDF description.
sparql_validate
Validate SPARQL query syntax without executing.
sparql_list_graphs
List available named graphs on a SPARQL endpoint.
sparql_get_prefixes
Get commonly used prefixes for a SPARQL endpoint.
Development
git clone https://github.com/daedalus/mcp-sparql.git
cd mcp-sparql
pip install -e ".[test]"
# run tests
pytest
# format
ruff format src/ tests/
# lint + type check
prospector --with-tool ruff --with-tool mypy --with-tool pylint src/