MCP server exposing 3 tools for fracfocus.
This URL is a JSON-RPC 2.0 endpoint over HTTP. Issue POST requests with a JSON-RPC body. Browsers and search crawlers land here on GET.
POST https://gateway.pipeworx.io/fracfocus/mcp
Content-Type: application/json
{"jsonrpc":"2.0","id":1,"method":"tools/list"}frac_wells — Hydraulic fracturing job disclosures (wells) from FracFocus, the national frac-chemical disclosure registry -- filter by state, county, and/or operator name (operator matches as a substring, case-insensitive). Returns each well's API number, operator, well name, location, job dates, and base fluid volumes, newest job first. Covers FracFocus's full disclosure history (back to its earliest submissions, most of it from 2011 on). Pass the API number from a result into frac_chemicals to get that job's chemical ingredient list. At least one of state, county, or operator is required -- an unscoped scan of ~250k disclosures is not supported.frac_chemicals — Chemical ingredient list disclosed for one well, by API number (the American Petroleum Institute well identifier, e.g. "42-317-37262-00-00" or "4231737262" -- dashes optional). Returns, per disclosed job on that well: trade name, supplier, purpose (e.g. "Surfactant", "Biocide", "Proppant"), CAS number, ingredient name, percent of the hydraulic fracturing job by mass, and mass in pounds; trade-secret ingredients carry no CAS number and the claimant company instead. Ingredient-level detail is only loaded for jobs on or after this pack's coverage cutoff (see data_as_of/ingredients_since in the response) -- a well found in frac_wells but outside that window returns found:false with reason "outside_ingredients_coverage", distinct from reason "unknown_api_number" when the well itself does not exist in FracFocus at all.chemical_usage — Where a chemical has been used in hydraulic fracturing jobs, by CAS number (e.g. "7732-18-5" for water, dashes optional) -- optionally scoped to one state. Returns a summary (total ingredient-disclosure rows, distinct wells, distinct states) plus a sample of matching usage records: well, operator, state/county, trade name, purpose, and mass. Only searches this pack's ingredients coverage window (see ingredients_since in the response), not FracFocus's full history. A CAS number that is valid but never appears in the loaded window returns found:false, not an empty success.Code samples (curl / TypeScript / one-click client install), schemas, and the live playground are on the pack page:
https://pipeworx.io/packs/fracfocus/
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