DAP Bellwether MCP server

DAP Bellwether

A free regulatory change feed for financial regulators in Canada, the United States, the United Kingdom and the European Union, delivered as an MCP connector.

No account. No key. No seat licence. Paste a URL and it is there.

Built and maintained by Dartmouth Advisory Partners, Toronto.

What it does

Bellwether collects what financial regulators publish, normalises it into one record shape, and serves it to any MCP client as a set of read-only tools. It holds prior state, so it can tell you that a document was amended after publication and what the earlier text said. That is the difference between detecting change and displaying a list.

Coverage begins from when the service first collected each source. It is not a complete historical archive, and the tools say so rather than letting an absence of results look like an absence of regulation.

This is a public information service. It is not legal or compliance advice.

Using it

Add the server as a custom connector in Claude:

https://bellwether.dap.solutions/mcp

1. In Claude, open Customize, then Connectors.
2. Click the plus button next to Connectors and choose add custom connector.
3. Give it a name, paste the URL above, and click Add.
4. In a chat, click the plus button, hover Connectors, and toggle it on.

There is nothing to authenticate and nothing to configure. Adding a connector does not switch it on by itself, so the last step matters. Free plan users are limited to one custom connector, which is one reason a Connectors Directory listing is worth pursuing. No submission has been made yet. On Team and Enterprise plans an owner adds it for the organization first.

The Worker also answers on https://dap-bellwether.dap-solutions.workers.dev/mcp, which is kept enabled as a fallback and serves an identical response. Hand out the bellwether.dap.solutions address.

Tools

All four are read-only. There is no write surface.

Coverage

Canada: OSFI, OSC. United States: SEC (press releases, and proposed and final rules through the Federal Register), FINRA, CFTC. United Kingdom: FCA. European Union: ESMA, EBA.

The live list is always what list_coverage returns, since a source that fails verification is disabled rather than shown.

Verified against the live web on 2026-07-24. Three regulators are deliberately absent:

• CIRO returns 403 to automated clients at every address, including the site root, so there is nothing to collect.
• TPR publishes no RSS feed.
• EIOPA publishes no RSS feed.

They are listed as not monitored rather than quietly omitted, because the point of list_coverage is that an absence of results can be trusted to mean an absence of publications.

Two limits worth knowing:

• ESMA publishes no date on its items. Those records are ordered by when Bellwether first collected them, and every result says so in place of a date rather than showing a collection date where a publication date belongs. Their first appearance is a burst of items all collected the same day.
• The United Kingdom rests on the FCA alone. If that feed breaks, the jurisdiction goes dark, and list_coverage will show it.

Architecture

cron (every 6h) -> ingest -> normalise -> hash -> D1
                                                  |
                              MCP tools <---------+

A scheduled job pulls each feed, normalises RSS 2.0, RSS 1.0 (RDF) and Atom into one record shape, hashes the content, and writes to D1. The MCP tools read only from D1 and never call a regulator during a user request.

Shortened. The full README is on GitHub.