"Understanding File Access" matching MCP connectors:

OWID MCP — Our World in Data chart/indicator access (free, no auth)

SIGNLDOAuth

ai.signld.app

Gives an agent read-only access to a SIGNLD workspace: list data connections and table schemas, run read-only SQL over the data, and read the knowledge graph, entities, metrics, and topics. It can also create and update knowledge graph elements and topics, build charts from query results, and save standalone HTML dashboards.

LuBot Analytics

io.github.lubobali

Portfolio X-Ray with ETF look-through, file analysis, and website analytics in plain English.

InfrapageOAuth via extension

page.infra

Read-only access to your Infrapage dashboards: pages, widgets, live values, weekly recaps.

Conversational access to advertising performance data, creative analysis, and campaign insights