Switchje open data
REMOTE · SWITCHJE.NL
Dutch energy market, open data computed nightly: cheapest contracts, market levels, offer lifecycle
Available components
Last scanned (12 hours ago)
Scores higher than 46% of remote servers
Reachable. Last reached 18 Oct 2026.
Category Finance and Payments
How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →
Endpoint Security57
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- Authorisation not fully verified: no authorisation is required to call this server, and 5 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe. See how to fix → View diagnostics → Unverified
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- HSTS check failed: the Strict-Transport-Security header is absent. See how to fix → View diagnostics → Fail
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability66
- AI-judged instruction clarity (good).Pass
- Tool/resource definitions use about 369 tokens (~73/item across 5 items; 5 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management10
- Stability observed for 3 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage67
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 0% of tool parameters carry a description.Fail
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 5 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 6 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a current MCP spec version (2026-07-28).Pass
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 17 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes.
- 16 Oct 26 0
- Stability: unverified → 0.03 ▲ functional
- 15 Oct 26 60
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 18 Oct 2026 · Probed https://switchje.nl/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=switchje.nl | CN=WE1,O=Google Trust Services,C=US | 6 Sept 2026 | 5 Dec 2026 | ECDSA 256 | ECDSA-SHA256 | 47ed883e3a63431b1301dd0a80c8cc04 |
| SANs: switchje.nl, *.switchje.nl | ||||||
| CN=WE1,O=Google Trust Services,C=US (CA) | CN=GTS Root R4,O=Google Trust Services LLC,C=US | 13 Dec 2023 | 20 Feb 2029 | ECDSA 256 | ECDSA-SHA384 | 7ff31977972c224a76155d13b6d685e3 |
| CN=GTS Root R4,O=Google Trust Services LLC,C=US (CA) | CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE | 15 Nov 2023 | 28 Jan 2028 | ECDSA 384 | SHA256-RSA | 7fe530bf331343bedd821610493d8a1b |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of switchje.nl. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| nl. | present | 17153 | 13 | Verified |
| switchje.nl. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://switchje.nl/mcp | Verified | 200 | |
| http (plaintext) | http://switchje.nl/mcp | HTTPS enforced | 301 | https://switchje.nl/mcp |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
cheapest_history ~58
The five cheapest offers per day for a standard profile over a date range (ISO dates, inclusive; both optional). A missing day had no valid run.
| Name | Type | Req | Description |
|---|---|---|---|
| from_date | – | – | – |
| profile | string | – | – |
| to_date | – | – | – |
No output schema declared.
No examples provided.
cheapest_today ~94
The five cheapest energy offers in the Netherlands for a standard household profile on the most recent day with data, with a coarse cost split (supply, taxes and levies, network, feed-in, one-off) and the time each price was fetched. profile: one of methodology()'s standard profiles, e.g. 'median', 'solar', 'heatpump', 'ev'.
| Name | Type | Req | Description |
|---|---|---|---|
| profile | string | – | – |
No output schema declared.
No examples provided.
market_summary ~68
Market aggregates for one day (ISO date; default the most recent) and profile: offers priced per contract type, median yearly cost, spread between cheapest and priciest, offers with cashback, offers added and withdrawn that day.
| Name | Type | Req | Description |
|---|---|---|---|
| date | – | – | – |
| profile | string | – | – |
No output schema declared.
No examples provided.
methodology ~26
How Switchje ranks offers, the standard profiles spelled out, the licence and how to attribute.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
offer_lifecycle ~54
When each offer was first seen on sale and when it was withdrawn (empty = still on sale), across every supplier we track; optionally filtered by supplier code (e.g. 'eneco').
| Name | Type | Req | Description |
|---|---|---|---|
| supplier | – | – | – |
No output schema declared.
No examples provided.
How do I install the Switchje open data MCP server?
Switchje open data is a hosted endpoint at https://switchje.nl/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
remote · switchje.nl
claude mcp add --transport http nl-switchje-open-data 'https://switchje.nl/mcp'
What is the Switchje open data MCP server?
Switchje open data is an MCP server listed in the public MCP registry as nl.switchje/open-data. Dutch energy market, open data computed nightly: cheapest contracts, market levels, offer lifecycle. This page covers its hosted endpoint (https://switchje.nl/mcp).
Is the Switchje open data MCP server safe to use?
Switchje open data scores 61 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the Switchje open data MCP server expose?
Switchje open data exposes 5 tools: cheapest_today, cheapest_history, market_summary, offer_lifecycle, methodology. Their descriptions and schemas cost roughly 300 tokens of context every time the server is loaded.
Does the Switchje open data MCP server require authentication?
No. We connected to Switchje open data without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the Switchje open data MCP server still maintained?
Switchje open data is still listed as active in the MCP registry. We last reached this channel on 18 October 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.