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overpass.ch

REMOTE · API.OVERPASS.CH · 2 COMPONENTS

Overpass API on the full planet with history, plus geocoding and elevation. Needs an API key.

71 Trust /100

Last scanned (11 hours ago)

Scores higher than 57% of remote servers

Reachable. Last reached 4 Nov 2026.

Category Maps and Location

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 Usability58
  • AI-judged instruction clarity (good).Pass
  • Context-footprint check failed: tool/resource definitions use about 1783 tokens (~254/item across 7 items; 7 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 Management0
  • Stability not yet verified: not enough scan history yet (needs a 30-day window).Unverified
Tool Coverage98
  • 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
  • 95% of tool parameters carry a description.Partial
Tool Safety100
  • No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
  • We read all 7 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
  • An AI judge read all 8 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

Unverified: 1 category

A category scored 0 because we could not verify it: authentication we do not have, an unreachable endpoint, or not enough scan history. We only credit what we can confirm.

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.

  • 4 Nov 26 71

    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 4 Nov 2026 · Probed https://api.overpass.ch/v1/mcp

TLS valid

Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .

Subject Issuer Valid from Valid until Key Signature Serial
CN=api.overpass.ch CN=YE1,O=Let's Encrypt,C=US 20 Oct 2026 18 Jan 2027 ECDSA 256 ECDSA-SHA384 65f6127383d4c01d77003879d80a0e48f99
SANs: api.overpass.ch
CN=YE1,O=Let's Encrypt,C=US (CA) CN=Root YE,O=ISRG,C=US 3 Sept 2025 2 Sept 2028 ECDSA 384 ECDSA-SHA384 5ddd70dd31f801c85c186a7a04b80afe
CN=Root YE,O=ISRG,C=US (CA) CN=ISRG Root X2,O=Internet Security Research Group,C=US 13 May 2026 2 Sept 2032 ECDSA 384 ECDSA-SHA384 872165fc34b6e5fba8add5b3705fb53a
CN=ISRG Root X2,O=Internet Security Research Group,C=US (CA) CN=ISRG Root X1,O=Internet Security Research Group,C=US 13 May 2026 2 Sept 2032 ECDSA 384 SHA256-RSA 6c8f1dc727c7117f7baf853ac980f9cd

Background: What to check on a remote MCP endpoint →

DNSSEC secure

Validation of api.overpass.ch. — Secure

Zone DS Keys Algorithms Outcome
. trust_anchor 20326, 38696 8, 8 Verified
ch. present 58745 13 Verified
overpass.ch. present 27388 13 Verified
api.overpass.ch. Verified address RRset verified with the apex keys
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
Header Value
strict-transport-security max-age=31536000
x-content-type-options nosniff
x-frame-options DENY
referrer-policy no-referrer

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

Transports 2 probes
Transport URL Outcome Status Location
streamable-http https://api.overpass.ch/v1/mcp Verified 200
http (plaintext) http://api.overpass.ch/v1/mcp HTTPS enforced 308 https://api.overpass.ch/v1/mcp
MCP tools · 7 exposed · ~1,370 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
account_status ~79

The plan of the API key of this connection and its use this month: Overpass requests used and left, when the allowance starts again, running queries, elevation lookups, geocoding requests, and the date of the data. It names the products on a free plan, which is not for commercial use. It does not count as a request.

Input schema present but exposes no named parameters.

No output schema declared.

No examples provided.

elevation_points ~145

Heights above sea level in metres for a list of points, negative at sea. Switzerland and Liechtenstein: swissALTI3D, a 2 m grid of the ground (credit "© swisstopo"). Elsewhere on land: Copernicus GLO-30, a 30 m grid of the surface that includes buildings and trees. At sea: GEBCO. Each point counts as one lookup; account_status shows the plan maximum per call.

NameTypeReqDescription
max_charsinteger–most characters of the answer to show; larger answers are cut, and offset shows the next part
pointsarrayyesthe points, each with lat and lon

No output schema declared.

No examples provided.

elevation_profile ~134

Elevation profile along a path of two or more points: distance, ascent, descent, the lowest and the highest point, and up to 100 points along the way (distance from the start, height, lat, lon). The path is sampled every 90 m unless samples or interval_m is set. Each sample counts as one lookup, up to the plan maximum per call.

NameTypeReqDescription
interval_mnumber–metres between samples, at least 10
patharrayyesthe points of the path in order, each with lat and lon
samplesinteger–number of samples along the path

No output schema declared.

No examples provided.

geocode_reverse ~143

Finds the address or place at a point (reverse geocoding). detail chooses what to return: the nearest address or object (address, the default), the street, the district, the city, the county, the state or the country that contains the point. The result has the same fields as those of geocode_search. One call counts as one geocoding request.

NameTypeReqDescription
detailstring–what to return
languagestring–language of the names and addresses; the local names when not set
latnumberyeslatitude, -90 to 90
lonnumberyeslongitude, -180 to 180

No output schema declared.

No examples provided.

geocode_search ~235

Finds places, addresses and points of interest by name (geocoding). Partial text works, as for autocomplete. Each result has the name, the address, lat and lon, a bounding box (south, west, north, east), the OpenStreetMap element (osm), and for ways and relations an overpass_area_id to use in overpass_query as area(id:N). Languages: en, de, fr. One call counts as one geocoding request.

NameTypeReqDescription
country_codesarray–only results in these countries, ISO 3166-1 alpha-2 codes such as CH or DE
kindstring–only places of this kind; settlement is a city, town, village or district
languagestring–language of the names and addresses; the local names when not set
limitinteger–most results
nearobject–prefer results near this point
querystringyeswhat to find, such as "Bundesplatz 3, Bern", "Zermatt" or "Louvre"
withinobject––

No output schema declared.

No examples provided.

overpass_examples ~107

Searches the cookbook of overpass.ch: Overpass queries that were tested on the full planet, with explanations. Give a topic in a few words, such as "bakeries in a city", "hiking routes", "count buildings" or "changes since a date", and get the 5 closest examples with their query and a link. Free: it does not count as a request.

NameTypeReqDescription
topicstringyeswhat the query should find, in a few English words

No output schema declared.

No examples provided.

overpass_query ~527

Runs an Overpass QL query on the full OpenStreetMap planet at overpass.ch (minutely updates) and returns the matching nodes, ways and relations with their tags. Start the query with a settings line such as [out:json][timeout:25]; JSON is used when the query does not set [out:]. [timeout:N] stops the query after N s: at most 120 s through this tool, and the plan may allow less. Patterns: - Box (south,west,north,east): nwr["amenity"="cafe"](47.36,8.53,47.38,8.55); out center; - Radius in metres around lat,lon: nwr["amenity"="pharmacy"](around:1000,47.3769,8.5417); out center; - In a place: overpass_area_id from geocode_search, then area(id:3600051701)->.a; nwr["tourism"="hotel"](area.a); out center; - By name (exact, local language): area["name"="Wien"]["admin_level"="4"]->.a; - Count: out count; Tags only: out tags; At most 50: out center 50; Lines with coordinates: out geom; (large) - Regex, any case: ["name"~"^Bahnhof",i] - By id: node(3470507586); out; way(id:1,2,3); out tags; - The map at a past date (Medium and Large plans): [date:"2015-01-01T00:00:00Z"] in the settings line. The answer starts with counts and the date of the data, then one JSON object per element and line, up to max_chars characters. When it is cut, call again with offset, or narrow the query. Each call counts as one request of the plan, a cut one too. Data © OpenStreetMap contributors, ODbL.

NameTypeReqDescription
add_elevationboolean–add the height in metres to every point of a JSON answer; one elevation lookup per point
max_charsinteger–most characters of the answer to show; larger answers are cut, and offset shows the next part
offsetinteger–the element (or CSV row) to start at, for the next part of a cut answer
querystringyesthe Overpass QL (or XML) query

No output schema declared.

No examples provided.

Install

How do I install the overpass.ch MCP server?

overpass.ch is a hosted endpoint at https://api.overpass.ch/v1/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 · api.overpass.ch

# add to Claude Code
claude mcp add --transport http ch-overpass-overpass 'https://api.overpass.ch/v1/mcp'
Common questions

What is the overpass.ch MCP server?

overpass.ch is an MCP server listed in the public MCP registry as ch.overpass/overpass. Overpass API on the full planet with history, plus geocoding and elevation. Needs an API key. This page covers its hosted endpoint (https://api.overpass.ch/v1/mcp).

Is the overpass.ch MCP server safe to use?

overpass.ch scores 71 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 overpass.ch MCP server expose?

overpass.ch exposes 7 tools: overpass_query, overpass_examples, geocode_search, geocode_reverse, elevation_points, and 2 more. Their descriptions and schemas cost roughly 1,370 tokens of context every time the server is loaded.

Does the overpass.ch MCP server require authentication?

No. We connected to overpass.ch without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

Is the overpass.ch MCP server still maintained?

overpass.ch is still listed as active in the MCP registry. We last reached this channel on 4 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.