Sovereignty Monitor public endpoint

Read-only JSON over the European Sovereignty Monitor data: the stack map, the sovereign-euro ledger, Horizon Europe grants from CORDIS, and the regulation timeline. No login. The data is published under CC BY 4.0; grants data comes from CORDIS, European Union.

Every claim on the Sovereignty Monitor is graded Verified or Reported, and every entry states what it does not test.
Horizon Europe money is contracted, not disbursed; a grant is not a product; consortium co-membership is not partnership.
The ledger records where the sovereign euro lands, under named tests; a case passing one test can fail another.

Routes

Method	URL	What
`GET`	`https://api.sovereigntymonitor.eu/api/status`	snapshots, counts and file dates
`GET`	`https://api.sovereigntymonitor.eu/api/cards/openchip`	everything the record holds about one map card
`GET`	`https://api.sovereigntymonitor.eu/api/cards?layer=design`	rows from a collection, filtered by any field
`GET`	`https://api.sovereigntymonitor.eu/api/events?area=policy-law&limit=20`	timeline events by area
`GET`	`https://api.sovereigntymonitor.eu/api/consortia?cards=openchip`	Horizon Europe consortia holding a card
`GET`	`https://api.sovereigntymonitor.eu/api/cases/jupiter`	one row by id
`GET`	`https://api.sovereigntymonitor.eu/api/search?q=risc-v&limit=10`	substring search across every collection
`POST`	`https://api.sovereigntymonitor.eu/mcp`	Model Context Protocol, Streamable HTTP, no login

Collections: cards, layers, partners, goals, variants, tests, cases, contradictions, consortia, orgs, events. Any query parameter other than limit filters a collection by that field (case-insensitive; list fields match by inclusion). Unknown ids come back as 404 with suggestions.

MCP for Claude and other assistants

Add https://api.sovereigntymonitor.eu/mcp as a custom connector (no authentication). It speaks Streamable HTTP with JSON responses and exposes six tools: sovmon_status, sovmon_get, sovmon_list, sovmon_search, sovmon_card_context, sovmon_cordis_candidates (the last one answers "not public" here; the CORDIS candidates file is an editorial working file).

Source data

The endpoint reads the site's own published files, stack.json, flows.json, cordis.json and timeline.json, and caches them for ten minutes. Sourcing rules and the grading are on the method page. Machine-readable: llms.txt, openapi.json. Corrections welcome, with a primary source.