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Tern EV-Charging Analytics (dev)

REMOTE · TERN-MCP-DEV-537572042041.EUROPE-WEST4.RUN.APP · SCANNED SEP 20

EV-charging site analytics: utilization, demand, peak saturation and corridor benchmarks.

70 Trust /100
Trust breakdown (7 categories)

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 Security83
Transport & Reachability100
Schema Quality & AI Usability50
  • AI-judged instruction clarity (fair).Partial
  • Context-footprint check failed: tool/resource definitions use about 3184 tokens (~122/item across 26 items; 26 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
  • 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 Coverage81
  • 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
  • 34% of tool parameters carry a description.Partial
  • Structured output schemas are declared (100% of tools); any adoption earns full credit.Pass
Tool Safety100
  • No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
  • We read all 26 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
  • An AI judge read all 26 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
  • Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Install

How do I install the Tern EV-Charging Analytics (dev) MCP server?

Tern EV-Charging Analytics (dev) is a hosted endpoint at https://tern-mcp-dev-537572042041.europe-west4.run.app/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 · tern-mcp-dev-537572042041.europe-west4.run.app

# add to Claude Code
claude mcp add --transport http useternai-usetern-dev 'https://tern-mcp-dev-537572042041.europe-west4.run.app/mcp'
// .cursor/mcp.json
{
  "mcpServers": {
    "useternai-usetern-dev": {
      "url": "https://tern-mcp-dev-537572042041.europe-west4.run.app/mcp"
    }
  }
}
// .vscode/mcp.json
{
  "servers": {
    "useternai-usetern-dev": {
      "type": "http",
      "url": "https://tern-mcp-dev-537572042041.europe-west4.run.app/mcp"
    }
  }
}
# ~/.codex/config.toml
[mcp_servers.useternai-usetern-dev]
url = "https://tern-mcp-dev-537572042041.europe-west4.run.app/mcp"
// opencode.json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "useternai-usetern-dev": {
      "type": "remote",
      "url": "https://tern-mcp-dev-537572042041.europe-west4.run.app/mcp",
      "enabled": true
    }
  }
}
# add to OpenClaw
openclaw mcp add useternai-usetern-dev --url 'https://tern-mcp-dev-537572042041.europe-west4.run.app/mcp' --transport streamable-http
# ~/.hermes/config.yaml
mcp_servers:
  useternai-usetern-dev:
    url: "https://tern-mcp-dev-537572042041.europe-west4.run.app/mcp"
// ~/.netclaw/config/netclaw.json
{
  "McpServers": {
    "useternai-usetern-dev": {
      "Transport": "http",
      "Url": "https://tern-mcp-dev-537572042041.europe-west4.run.app/mcp"
    }
  }
}
# add to Vellum
assistant mcp add useternai-usetern-dev -t streamable-http -u 'https://tern-mcp-dev-537572042041.europe-west4.run.app/mcp'
// mcp.json
{
  "mcpServers": {
    "useternai-usetern-dev": {
      "type": "http",
      "url": "https://tern-mcp-dev-537572042041.europe-west4.run.app/mcp"
    }
  }
}

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

Changelog

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.

  • 20 Sept 26 0
    • This server's schema is too large to store in full, so we cannot compare its tools day to day functional
  • 19 Sept 26 +1
    • This server's schema is too large to store in full, so we cannot compare its tools day to day functional
  • 18 Sept 26 0
    • Stability: unverified → 0.03 functional
    • This server's schema is too large to store in full, so we cannot compare its tools day to day functional
  • 17 Sept 26 69

    First indexed and scored.

Diagnostics

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 20 Sept 2026 · Probed https://tern-mcp-dev-537572042041.europe-west4.run.app/mcp

TLS valid

Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .

Subject Issuer Valid from Valid until Key Signature Serial
CN=*.a.run.app CN=WR2,O=Google Trust Services,C=US 4 Sept 2026 27 Nov 2026 ECDSA 256 SHA256-RSA a6993fec773504b312550b7de9609011
SANs: *.a.run.app, run.app, *.africa-south1.run.app, *.asia-east1.run.app, *.asia-east2.run.app, *.asia-northeast1.run.app, *.asia-northeast2.run.app, *.asia-northeast3.run.app, *.asia-south1.run.app, *.asia-south2.run.app, *.asia-southeast1.run.app, *.asia-southeast2.run.app and 93 more
CN=WR2,O=Google Trust Services,C=US (CA) CN=GTS Root R1,O=Google Trust Services LLC,C=US 13 Dec 2023 20 Feb 2029 RSA 2048 SHA256-RSA 7ff005a07c4cded100ad9d66a5107b98
CN=GTS Root R1,O=Google Trust Services LLC,C=US (CA) CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE 19 Jun 2020 28 Jan 2028 RSA 4096 SHA256-RSA 77bd0d6cdb36f91aea210fc4f058d30d

Background: What to check on a remote MCP endpoint →

DNSSEC insecure

Validation of tern-mcp-dev-537572042041.europe-west4.run.app. Not signed

Zone DS Keys Algorithms Outcome
. trust_anchor 20326, 38696 8, 8 Verified
app. present 23684 8 Verified
run.app. absent Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation
Authentication Challenged, unverified

The endpoint asked for a token, but we could not retrieve and validate the RFC 9728 metadata that tells a client how to obtain one.

Result Challenged, unverified
Enforced On tool calls
HTTP status 200

WWW-Authenticate challenge Bearer realm="tern-mcp"

Bearer realm="tern-mcp"

Protected resource metadata

Retrieved No
Problem no_resource_metadata

Background: How OAuth 2.1 works in the 2026 MCP spec →

Transports 2 probes
Transport URL Outcome Status Location
streamable-http https://tern-mcp-dev-537572042041.europe-west4.run.app/mcp Verified 200
http (plaintext) http://tern-mcp-dev-537572042041.europe-west4.run.app/mcp HTTPS enforced 302 https://tern-mcp-dev-537572042041.europe-west4.run.app/mcp
MCP tools · 26 exposed · ~3,184 tokens

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 →

Tool Tokens
aggregate_charging_utilization ~180

Station-level utilization aggregated over a GeoJSON area and a date window of at most 92 days, optionally filtered to a capacity band (default 150 kW = HPC; pass 100 for fast charging). The reply is one row per station, so it reads an area without pulling any station's daily rows.

NameTypeReqDescription
country_iso3stringyesISO-3166 alpha-3 scope, e.g. NOR.
date_fromstringyesYYYY-MM-DD (required).
date_tostringyesYYYY-MM-DD (required; window <= 92 days, >= date_from).
geometrystringyesGeoJSON Polygon/MultiPolygon as a JSON string.
max_capacity_kw
min_capacity_kwkW floor (default 150 = HPC; pass 100 for fast-charging).
NameTypeReqDescription
resultstringyes

No examples provided.

aggregate_evse_utilization ~157

EVSE-level utilization aggregated over a GeoJSON area and a date window of at most 92 days, optionally filtered to a capacity band. The per-connector counterpart of aggregate_charging_utilization.

NameTypeReqDescription
country_iso3stringyesISO-3166 alpha-3 scope, e.g. NOR.
date_fromstringyesYYYY-MM-DD (required).
date_tostringyesYYYY-MM-DD (required; window <= 92 days, >= date_from).
geometrystringyesGeoJSON Polygon/MultiPolygon as a JSON string.
max_capacity_kw
min_capacity_kwkW floor (default 150 = HPC; pass 100 for fast-charging).
NameTypeReqDescription
resultstringyes

No examples provided.

area_benchmark ~117

How hard is each EVSE at this site working compared with the area around it? Reads the area_benchmark claim for one site and returns only its result: the status the claim decided from its own observations (computed or insufficient), the typed result, and the display a deliverable would print. The observations behind it are pulled into a scratch directory that is deleted before the call returns, so the rows never enter the conversation and nothing is left on the server to read back later — this call is the whole reading.

NameTypeReqDescription
paramsyes
NameTypeReqDescription
resultstringyes

No examples provided.

avg_session_minutes ~111

How long does a session at this site actually last? Reads the avg_session_minutes claim for one site and returns only its result: the status the claim decided from its own observations (computed or insufficient), the typed result, and the display a deliverable would print. The observations behind it are pulled into a scratch directory that is deleted before the call returns, so the rows never enter the conversation and nothing is left on the server to read back later — this call is the whole reading.

NameTypeReqDescription
paramsyes
NameTypeReqDescription
resultstringyes

No examples provided.

busy_evse_hours ~134

How many EVSE-hours at this station carried charging on the drilled day, and how many of its EVSEs were charging at once in the busiest hour? Reads the busy_evse_hours claim for one site and returns only its result: the status the claim decided from its own observations (computed or insufficient), the typed result, and the display a deliverable would print. The observations behind it are pulled into a scratch directory that is deleted before the call returns, so the rows never enter the conversation and nothing is left on the server to read back later — this call is the whole reading.

NameTypeReqDescription
paramsyes
NameTypeReqDescription
resultstringyes

No examples provided.

corridor_benchmark ~117

How does this site's demand per EVSE-day compare with the corridor drawn around it? Reads the corridor_benchmark claim for one site and returns only its result: the status the claim decided from its own observations (computed or insufficient), the typed result, and the display a deliverable would print. The observations behind it are pulled into a scratch directory that is deleted before the call returns, so the rows never enter the conversation and nothing is left on the server to read back later — this call is the whole reading.

NameTypeReqDescription
paramsyes
NameTypeReqDescription
resultstringyes

No examples provided.

corridor_comparison ~130

How does this site compare with the named stations around it — distance, EVSE count, max kW, and sessions per EVSE-day each? Reads the corridor_comparison claim for one site and returns only its result: the status the claim decided from its own observations (computed or insufficient), the typed result, and the display a deliverable would print. The observations behind it are pulled into a scratch directory that is deleted before the call returns, so the rows never enter the conversation and nothing is left on the server to read back later — this call is the whole reading.

NameTypeReqDescription
paramsyes
NameTypeReqDescription
resultstringyes

No examples provided.

daily_spike ~114

Which days ran far above this site's normal, and by how much? Reads the daily_spike claim for one site and returns only its result: the status the claim decided from its own observations (computed or insufficient), the typed result, and the display a deliverable would print. The observations behind it are pulled into a scratch directory that is deleted before the call returns, so the rows never enter the conversation and nothing is left on the server to read back later — this call is the whole reading.

NameTypeReqDescription
paramsyes
NameTypeReqDescription
resultstringyes

No examples provided.

day_vs_similar ~116

Was one particular day unusual for the day of week it fell on? Reads the day_vs_similar claim for one site and returns only its result: the status the claim decided from its own observations (computed or insufficient), the typed result, and the display a deliverable would print. The observations behind it are pulled into a scratch directory that is deleted before the call returns, so the rows never enter the conversation and nothing is left on the server to read back later — this call is the whole reading.

NameTypeReqDescription
paramsyes
NameTypeReqDescription
resultstringyes

No examples provided.

demand_share_multiple ~121

How much of the area's demand does this one site take, said as a multiple of the mean station? Reads the demand_share_multiple claim for one site and returns only its result: the status the claim decided from its own observations (computed or insufficient), the typed result, and the display a deliverable would print. The observations behind it are pulled into a scratch directory that is deleted before the call returns, so the rows never enter the conversation and nothing is left on the server to read back later — this call is the whole reading.

NameTypeReqDescription
paramsyes
NameTypeReqDescription
resultstringyes

No examples provided.

estate_coverage ~127

Which estate sites reported on every day of the window, which are partial or young, and how full is the window's final day? Reads the estate_coverage claim for one site and returns only its result: the status the claim decided from its own observations (computed or insufficient), the typed result, and the display a deliverable would print. The observations behind it are pulled into a scratch directory that is deleted before the call returns, so the rows never enter the conversation and nothing is left on the server to read back later — this call is the whole reading.

NameTypeReqDescription
paramsyes
NameTypeReqDescription
resultstringyes

No examples provided.

estate_monthly_series ~124

Did demand per EVSE across the estate move month over month, and did each focus site move with it? Reads the estate_monthly_series claim for one site and returns only its result: the status the claim decided from its own observations (computed or insufficient), the typed result, and the display a deliverable would print. The observations behind it are pulled into a scratch directory that is deleted before the call returns, so the rows never enter the conversation and nothing is left on the server to read back later — this call is the whole reading.

NameTypeReqDescription
paramsyes
NameTypeReqDescription
resultstringyes

No examples provided.

hourly_spike ~111

When in the day does demand at this site peak? Reads the hourly_spike claim for one site and returns only its result: the status the claim decided from its own observations (computed or insufficient), the typed result, and the display a deliverable would print. The observations behind it are pulled into a scratch directory that is deleted before the call returns, so the rows never enter the conversation and nothing is left on the server to read back later — this call is the whole reading.

NameTypeReqDescription
paramsyes
NameTypeReqDescription
resultstringyes

No examples provided.

list_evses ~88

List the individual EVSEs (connectors) of up to 20 stations, with their capacity in kW. Stall counts and capacity bands come from here rather than from a station record.

NameTypeReqDescription
country_iso3stringyesISO-3166 alpha-3 scope, e.g. NOR.
station_idsyes1-20 station ids (array or comma-separated).
NameTypeReqDescription
resultstringyes

No examples provided.

monthly_sessions_per_stall_day ~118

Is demand per EVSE rising or falling month over month? Reads the monthly_sessions_per_stall_day claim for one site and returns only its result: the status the claim decided from its own observations (computed or insufficient), the typed result, and the display a deliverable would print. The observations behind it are pulled into a scratch directory that is deleted before the call returns, so the rows never enter the conversation and nothing is left on the server to read back later — this call is the whole reading.

NameTypeReqDescription
paramsyes
NameTypeReqDescription
resultstringyes

No examples provided.

nearby_charging_stations ~117

List the charging stations within a radius of a point, nearest first. The radius is in kilometres and at most 10; the reply is the API payload inline. This is how a site's competitors are found before any claim is read.

NameTypeReqDescription
country_iso3stringyesISO-3166 alpha-3 scope, e.g. NOR.
latnumberyes
limit
lngnumberyes
radius_kmnumberyeskm, > 0 and <= 10.
NameTypeReqDescription
resultstringyes

No examples provided.

peak_hour_co_saturation ~130

When the site reaches its busiest hour of the day, do the stations around it reach their own busiest hours at the same time? Reads the peak_hour_co_saturation claim for one site and returns only its result: the status the claim decided from its own observations (computed or insufficient), the typed result, and the display a deliverable would print. The observations behind it are pulled into a scratch directory that is deleted before the call returns, so the rows never enter the conversation and nothing is left on the server to read back later — this call is the whole reading.

NameTypeReqDescription
paramsyes
NameTypeReqDescription
resultstringyes

No examples provided.

poi_context ~135

What kind of place is this site sitting in? Reads the poi_context claim for one site and returns only its result: the status the claim decided from its own observations (computed or insufficient), the typed result, and the display a deliverable would print. The observations behind it are pulled into a scratch directory that is deleted before the call returns, so the rows never enter the conversation and nothing is left on the server to read back later — this call is the whole reading. places carries the rows this claim reads, because they are transcribed by the caller rather than fetched.

NameTypeReqDescription
paramsyes
placesarrayyes
NameTypeReqDescription
resultstringyes

No examples provided.

rank_gap ~123

Where does this site sit in its estate's ranking, and how far is it from the estate median and the estate leader? Reads the rank_gap claim for one site and returns only its result: the status the claim decided from its own observations (computed or insufficient), the typed result, and the display a deliverable would print. The observations behind it are pulled into a scratch directory that is deleted before the call returns, so the rows never enter the conversation and nothing is left on the server to read back later — this call is the whole reading.

NameTypeReqDescription
paramsyes
NameTypeReqDescription
resultstringyes

No examples provided.

road_context ~112

What road does this site sit on, and what class is it? Reads the road_context claim for one site and returns only its result: the status the claim decided from its own observations (computed or insufficient), the typed result, and the display a deliverable would print. The observations behind it are pulled into a scratch directory that is deleted before the call returns, so the rows never enter the conversation and nothing is left on the server to read back later — this call is the whole reading.

NameTypeReqDescription
paramsyes
NameTypeReqDescription
resultstringyes

No examples provided.

search_charging_stations ~114

Find charging stations in one country by structured filter — id, title, address, operator. The reply is the API payload inline: station ids, titles, addresses and operators, which is what the claim tools take as site_id and station_id.

NameTypeReqDescription
address
country_iso3stringyesISO-3166 alpha-3 scope, e.g. NOR.
idOne 32-char hex station id.
limit
operator
title
NameTypeReqDescription
resultstringyes

No examples provided.

sessions_per_stall_day ~117

How hard is each EVSE at this site working per day? Reads the sessions_per_stall_day claim for one site and returns only its result: the status the claim decided from its own observations (computed or insufficient), the typed result, and the display a deliverable would print. The observations behind it are pulled into a scratch directory that is deleted before the call returns, so the rows never enter the conversation and nothing is left on the server to read back later — this call is the whole reading.

NameTypeReqDescription
paramsyes
NameTypeReqDescription
resultstringyes

No examples provided.

site_profile ~117

What is this site — how many EVSEs, and how close is the nearest station? Reads the site_profile claim for one site and returns only its result: the status the claim decided from its own observations (computed or insufficient), the typed result, and the display a deliverable would print. The observations behind it are pulled into a scratch directory that is deleted before the call returns, so the rows never enter the conversation and nothing is left on the server to read back later — this call is the whole reading.

NameTypeReqDescription
paramsyes
NameTypeReqDescription
resultstringyes

No examples provided.

site_ranking ~128

How do the estate's sites rank on sessions per EVSE-day over one window, and how far is the leader above the estate median? Reads the site_ranking claim for one site and returns only its result: the status the claim decided from its own observations (computed or insufficient), the typed result, and the display a deliverable would print. The observations behind it are pulled into a scratch directory that is deleted before the call returns, so the rows never enter the conversation and nothing is left on the server to read back later — this call is the whole reading.

NameTypeReqDescription
paramsyes
NameTypeReqDescription
resultstringyes

No examples provided.

total_charging_minutes ~116

How many minutes of charging did this site actually deliver over the window? Reads the total_charging_minutes claim for one site and returns only its result: the status the claim decided from its own observations (computed or insufficient), the typed result, and the display a deliverable would print. The observations behind it are pulled into a scratch directory that is deleted before the call returns, so the rows never enter the conversation and nothing is left on the server to read back later — this call is the whole reading.

NameTypeReqDescription
paramsyes
NameTypeReqDescription
resultstringyes

No examples provided.

total_sessions ~110

How much charging demand did this site see over the window? Reads the total_sessions claim for one site and returns only its result: the status the claim decided from its own observations (computed or insufficient), the typed result, and the display a deliverable would print. The observations behind it are pulled into a scratch directory that is deleted before the call returns, so the rows never enter the conversation and nothing is left on the server to read back later — this call is the whole reading.

NameTypeReqDescription
paramsyes
NameTypeReqDescription
resultstringyes

No examples provided.

Common questions

What is the Tern EV-Charging Analytics (dev) MCP server?

Tern EV-Charging Analytics (dev) is an MCP server listed in the public MCP registry as io.github.useternai/usetern-dev. EV-charging site analytics: utilization, demand, peak saturation and corridor benchmarks. This page covers its hosted endpoint (https://tern-mcp-dev-537572042041.europe-west4.run.app/mcp).

Is the Tern EV-Charging Analytics (dev) MCP server safe to use?

Tern EV-Charging Analytics (dev) scores 70 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 Tern EV-Charging Analytics (dev) MCP server expose?

Tern EV-Charging Analytics (dev) exposes 26 tools: search_charging_stations, nearby_charging_stations, list_evses, aggregate_charging_utilization, aggregate_evse_utilization, and 21 more. Their descriptions and schemas cost roughly 3,184 tokens of context every time the server is loaded.

Does the Tern EV-Charging Analytics (dev) MCP server require authentication?

Yes. Tern EV-Charging Analytics (dev) asked us for credentials when we connected, so you will need to authorise it in your MCP client before it can do anything.

Is the Tern EV-Charging Analytics (dev) MCP server still maintained?

Tern EV-Charging Analytics (dev) is still listed as active in the MCP registry. We last reached this channel on 20 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.