Open data: clinical trials, EU tenders, companies, fuel prices MCP Server

by duckdns-gregswarm-api Your server? Claim it

answering

Open data: clinical trials, EU tenders, companies, fuel prices is answering right now. Last checked 5 min ago. It exposes 6 tools.

Official open data as JSON: clinical trials, EU tenders, papers, apps, French firms, fuel, domains.

Uptime history 12 days of history

12 days agonow

100.0%

Uptime 24h

91 of 91 checks

Tools

read from the server

680 ms

Response time

average over 24h

open, no key

Access

streamable-http

What changed 7

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 2 November 2026. No other catalogue keeps this.

2 Nov 6 tool descriptions were rewritten app-store-search, clinical-trials-monitor, eu-fuel-monitor and 3 more

2 Nov a tool disappeared domain-availability

Tools have disappeared from this server

A tool that vanishes takes a piece of your agent with it, and the change arrives silently. Watch this server and every such change lands in your inbox.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 5 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add open-data --transport http https://api.gregswarm.duckdns.org/mcp

Settings → Connectors → Add custom connector, then paste this address

https://api.gregswarm.duckdns.org/mcp

~/.codex/config.toml

[mcp_servers.open-data]
url = "https://api.gregswarm.duckdns.org/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "open-data": {
      "url": "https://api.gregswarm.duckdns.org/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "open-data": {
      "type": "http",
      "url": "https://api.gregswarm.duckdns.org/mcp"
    }
  }
}

Available tools 6

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

app

app-store-search

Search Apple's App Store by keyword in any storefront country and get each app's developer, price, rating, version, release date, genre, size, minimum OS and store URL. Read from itunes.apple.com when called. Each result: app_id, name, developer, developer_id, bundle_id, price, formatted_price, currency, average_rating, rating_count, average_rating_current_version, rating_count_current_version, version, version_release_date, release_date, primary_genre, size_bytes, minimum_os, content_rating, seller_name, store_url. Needs a RapidAPI key for this API (https://rapidapi.com/IanGregory/api/clinical-trials-eu-tenders-open-data-api), sent as the X-RapidAPI-Key header; the listing has a free plan.

clinical

clinical-trials-monitor

Studies from the official ClinicalTrials.gov API v2 for a condition, phase and status, returning only the studies whose status, phase, enrollment or last update changed since your last run. Read from clinicaltrials.gov when called. Each result: nct_id, title, sponsor, phase, status, enrollment, start_date, completion_date, last_update_date, conditions, lead_intervention, first_country. Needs a RapidAPI key for this API (https://rapidapi.com/IanGregory/api/clinical-trials-eu-tenders-open-data-api), sent as the X-RapidAPI-Key header; the listing has a free plan.

company

fr-company-search

Search France's official company register by NAF activity code, département, headcount band and status, and get typed legal-entity records with head-office address, coordinates and company size. Read from recherche-entreprises.api.gouv.fr when called. Each result: siren, siret_head_office, name, legal_name, naf_code, legal_form_code, address, postcode, city, departement, lat, lon, creation_date, headcount_band, company_category, establishments_total, establishments_open, status. Needs a RapidAPI key for this API (https://rapidapi.com/IanGregory/api/clinical-trials-eu-tenders-open-data-api), sent as the X-RapidAPI-Key header; the listing has a free plan.

fuel

eu-fuel-monitor

Each run returns only the stations whose fuel prices changed since the last run, from the French and Spanish open government feeds, filtered by postcode prefix. Read from donnees.roulez-eco.fr, sedeaplicaciones.minetur.gob.es when called. Each result: country, station_id, postcode, address, city, lat, lon, diesel_eur_l, sp95_e5_eur_l, e10_eur_l, sp98_eur_l. Needs a RapidAPI key for this API (https://rapidapi.com/IanGregory/api/clinical-trials-eu-tenders-open-data-api), sent as the X-RapidAPI-Key header; the listing has a free plan.

scholarly

scholarly-search

Search the OpenAlex index of scholarly works by keyword, year range and open-access status, and get each paper's title, DOI, year, venue, type, citation count and open-access link. Read from api.openalex.org when called. Each result: openalex_id, title, doi, year, publication_date, venue, type, cited_by_count, is_open_access, oa_status, open_access_url, language. Needs a RapidAPI key for this API (https://rapidapi.com/IanGregory/api/clinical-trials-eu-tenders-open-data-api), sent as the X-RapidAPI-Key header; the listing has a free plan.

ted

ted-tender-monitor

New public procurement notices from the EU's official TED search API for a CPV code prefix, buyer country and keyword, returning only the notices that are new or changed since your last run. Read from api.ted.europa.eu when called. Each result: notice_id, publication_date, buyer, country_code, title, cpv_codes, procedure, deadline, estimated_value, currency, url. Needs a RapidAPI key for this API (https://rapidapi.com/IanGregory/api/clinical-trials-eu-tenders-open-data-api), sent as the X-RapidAPI-Key header; the listing has a free plan.

Tools removed

Tools this server used to expose. Anything built against them stopped working on the day they went.

domain-availability

removed 2 Nov 2026

Endpoints

URL	Transport	State	Latency	Checked
https://api.gregswarm.duckdns.org/mcp	streamable-http	answering	664 ms	5 min ago

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Open data: clinical trials, EU tenders, companies, fuel prices — questions

Answers built from our own checks of this server.

What can Open data: clinical trials, EU tenders, companies, fuel prices do?

It exposes 6 tools, read directly from the server on our last check. Among them: app-store-search, clinical-trials-monitor, eu-fuel-monitor, fr-company-search, scholarly-search, ted-tender-monitor. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is Open data: clinical trials, EU tenders, companies, fuel prices working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 680 ms. The bar chart above shows every period we have measured.

Did Open data: clinical trials, EU tenders, companies, fuel prices ever remove tools?

Yes. domain-availability is no longer exposed — we recorded the date each one disappeared. A tool vanishing usually means a breaking change for anything that depended on it.

How do I connect Open data: clinical trials, EU tenders, companies, fuel prices?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does Open data: clinical trials, EU tenders, companies, fuel prices need an API key?

No. Open data: clinical trials, EU tenders, companies, fuel prices completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 6 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Open data: clinical trials, EU tenders, companies, fuel prices?

It answers our handshake in 680 ms on average, which is faster than 13% of all working MCP servers we measure. That is on the slow side — worth knowing if the tool sits inside an interactive loop. The comparison comes from our own checks across the whole registry, every 15 minutes.