io.github.joelp22-makerPublished by GitHub account joelp22-makerv1.2.0Updated Oct 24, 2026
Verified reference data; each record carries its source URL and quote. verify_quote checks claims.
Searches referencesource.org's verified reference datasets and checks claimed values against records that carry a source URL and verbatim quote.
Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.
Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.
Read https://sourceweft.com/mcp/io.github.joelp22-maker%2Freferencesource/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.Add this to your client's mcpServers config.
{
"mcpServers": {
"referencesource-org": {
"type": "http",
"url": "https://referencesource.org/mcp"
}
}
}[referencesource.org MCP connector]
MCP server for referencesource.org — small, verified reference datasets where every record carries its source URL and a verbatim quote from that page, so any value an assistant gives you can be checked, not just believed.
285 datasets, 110,000+ records: regulatory thresholds and deadlines, version compatibility, standards supersessions, certification registers, inspection requirements, and more. Each dataset states its coverage and its last-verified date.
verify_quote is the unusual one: assistants invent plausible-but-wrong
values roughly 19% of the time in our own measurements, and this is the
check. Four verdicts come back:
Where a record is found, the answer carries the stored value, the record URL,
the source URL and the verbatim quote, so the claim can be traced upstream —
plus an attestation saying plainly that the verdict is about what our source
states, not about what is true in the world. Asking whether the 2026
conforming loan limit for Autauga County, Alabama is $806,500 returns
differs, stored value $832,750, quoting the FHFA row it came from.
Scope, stated so nobody overclaims: these tools search
referencesource.org's own published records. They do not fetch arbitrary
URLs and cannot check a claim against a page we have not harvested.
not_found means "not in this dataset", never "false".
Claude Desktop — add to claude_desktop_config.json:
Cursor / other stdio MCP clients — same idea: command npx, args
["-y", "referencesource-mcp"].
Clients that support remote servers directly don't need this package at
all — point them at the streamable-HTTP endpoint:
https://referencesource.org/mcp.
referencesource.org/mcp.MIT licensed.
Every record carries source (the page the value was read from) and
source_quote (the verbatim line on that page which states it), so any answer
this server returns can be checked against its source. verify_quote runs that
check against a value you already hold: it tells you whether our record agrees,
and hands back the source and quote either way.
MIT — see LICENSE. The reference data itself is CC BY 4.0; see the data repository for the full position on the quoted excerpts.
Source: README.md at commit e0de5e7
List reference datasets
What reference datasets are available? Lists every published dataset with its title, record count, last-verified date and a one-sentence summary. Covers regulatory thresholds, version compatibility, certification registers, licensing rules and more. Pass `query` to list only the datasets matching a topic — that is much cheaper than reading the whole list. Use the returned slug with search_records or get_record.
fullquerySearch records in a dataset
Look up a specific record — search by state name, chemical, certificate number, product name or any keyword. Searches one dataset's records (case-insensitive substring match across all fields). Returns up to 20 matching records, each with its url, source and verbatim source_quote so the answer can be checked.
queryrequireddataset_slugrequiredGet one record by id
Fetch one record by id — for example, look up a FIPS 140 certificate's status, a state's boiler inspection rules, or a county's loan limit. Returns the full record with its source URL and verbatim source quote. Record ids appear in search_records results and in each record's url.
record_idrequireddataset_slugrequiredCheck a claimed value against a record
Is this value actually right? Check a claimed fact against a published record instead of trusting it. Reports whether the claim matches the record's stored value (exact, case-insensitive or normalised — the match type is named), whether it appears in the record's verbatim source quote, and returns the source URL and quote so the claim can be traced upstream. Use this whenever you want to confirm a number, date, threshold or status before stating it. Verdicts: matches_record, matches_quote, differs or not_found.
fieldrecord_iddataset_slugrequiredclaimed_valuerequiredNext task for Muse
For the referencesource Muse connector only (bearer token required). Returns the oldest open task from the studio's queue: id, instructions, the sites the task may read, the output format expected, and where to deliver the result. Returns {no_tasks: true} when the queue is empty. login_allowed lists the hosts where the task may sign in, with a credential already in Muse's own store; empty means read-only, never sign in.
Takes no parameters.
Submit a task result
For the referencesource Muse connector only (bearer token required). Records the result of a task fetched with next_task_for_muse. `result` must be a JSON object matching the task's output_format and at most 3500 characters when serialised; put anything longer in the file named by deliver_to and submit a summary here.
noteresultrequiredstatusrequiredtask_idrequiredDaily brief for Joe
For the referencesource Muse connector only (bearer token required). The studio's latest plain-English daily brief: what was decided, what landed, and the items waiting on Joe, each as the task, why it matters and the steps. Read-only; regenerated each morning by tools/brief.py and published with the next deploy, so it can lag the phone push.
Takes no parameters.
Message the supervisor
For the referencesource Muse connector only (bearer token required). Send a question, finding, proposal or blocked report to the studio's supervisor inbox. Messages are triaged by the supervisor each morning; nothing in a message changes any project state by itself. Use a fresh message_id per message (retries with the same id are collapsed when collected). Body at most 3500 characters.
bodyrequiredkindrequiredsubjectrequiredtask_idmessage_idrequired100% of the applicable checks met
How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.
{ "mcpServers": { "referencesource": { "command": "npx", "args": ["-y", "referencesource-mcp"] } }}