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One Coworking

REMOTE · WWW.ONECOWORKING.COM

Find and compare coworking spaces and offices in 300+ European cities; get office quotes.

+3 this week 81 Trust /100

Last scanned (22 minutes ago)

Scores higher than 84% of remote servers

Reachable. Last reached 5 Nov 2026.

Category Productivity and Notes

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 Security80
Transport & Reachability100
Schema Quality & AI Usability71
  • 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).Pass
  • AI-judged instruction clarity (good).Pass
  • Context-footprint check failed: tool/resource definitions use about 3570 tokens (~238/item across 15 items; 13 tools + 2 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 Management70
  • Stability observed for 21 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage83
  • 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
  • 49% 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 13 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
  • An AI judge read all 15 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
  • Supports UI / widget rendering.Pass
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 +1

    No change was recorded against any check on this day. Stability & Change Management went from 63 to 67. That category is still filling its 30-day observation window: 19 days of observed history at the previous scan, 20 at this one. The score rises as the window fills, whether or not the server changes.

  • 2 Nov 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 57 to 60. That category is still filling its 30-day observation window: 17 days of observed history at the previous scan, 18 at this one. The score rises as the window fills, whether or not the server changes.

  • 31 Oct 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 50 to 53. That category is still filling its 30-day observation window: 15 days of observed history at the previous scan, 16 at this one. The score rises as the window fills, whether or not the server changes.

  • 29 Oct 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 43 to 47. That category is still filling its 30-day observation window: 13 days of observed history at the previous scan, 14 at this one. The score rises as the window fills, whether or not the server changes.

  • 27 Oct 26 0
    • The server rewrote its instructions, which are the text every model session reads security
    • Tool “get_request_status” rewrote its description, which is the text the model reads security
    • New tool “decline_option” functional
    • New tool “rate_viewing” functional
  • 26 Oct 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 33 to 37. That category is still filling its 30-day observation window: 10 days of observed history at the previous scan, 11 at this one. The score rises as the window fills, whether or not the server changes.

  • 24 Oct 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 27 to 30. That category is still filling its 30-day observation window: 8 days of observed history at the previous scan, 9 at this one. The score rises as the window fills, whether or not the server changes.

  • 22 Oct 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 20 to 23. That category is still filling its 30-day observation window: 6 days of observed history at the previous scan, 7 at this one. The score rises as the window fills, whether or not the server changes.

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 5 Nov 2026 · Probed https://www.onecoworking.com/api/mcp

TLS valid

Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .

Subject Issuer Valid from Valid until Key Signature Serial
CN=www.onecoworking.com CN=YR1,O=Let's Encrypt,C=US 3 Oct 2026 1 Jan 2027 RSA 2048 SHA256-RSA 679cff74042f12301bc3981a5936c47926e
SANs: www.onecoworking.com
CN=YR1,O=Let's Encrypt,C=US (CA) CN=Root YR,O=ISRG,C=US 3 Sept 2025 2 Sept 2028 RSA 2048 SHA256-RSA a20253f15f2691c05dc1ce13b9bcca4e
CN=Root YR,O=ISRG,C=US (CA) CN=ISRG Root X1,O=Internet Security Research Group,C=US 13 May 2026 2 Sept 2032 RSA 4096 SHA256-RSA f24b6d17f9d9ad7cb1c9fea78782699f

Background: What to check on a remote MCP endpoint →

DNSSEC insecure

Validation of www.onecoworking.com. — Not signed

Zone DS Keys Algorithms Outcome
. trust_anchor 20326, 38696 8, 8 Verified
com. present 19718 13 Verified
onecoworking.com. 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
Header Value
strict-transport-security max-age=63072000
x-content-type-options nosniff
x-frame-options DENY
referrer-policy strict-origin-when-cross-origin

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

Transports 2 probes
Transport URL Outcome Status Location
streamable-http https://www.onecoworking.com/api/mcp Verified 200
http (plaintext) http://www.onecoworking.com/api/mcp HTTPS enforced 308 https://www.onecoworking.com/api/mcp
MCP tools · 13 exposed · ~2,992 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
city_prices ~88

Typical starting list prices in a city across its public venues: day pass per day, private office per desk per month, desks (flex / fixed) per month, meeting room per hour — 10th–90th percentile with the median, recomputed hourly from live listings. Private offices and desks are separate lines: the office range never includes a desk price.

NameTypeReqDescription
citystringyes–

No output schema declared.

No examples provided.

confirm_email_code ~85

Confirm an office or meeting request with the 6-digit code One Coworking emailed the person. Only then does the request reach One Coworking. Returns a reference and an access key — keep the key for get_request_status (and, for an office, request_viewing) in this conversation.

NameTypeReqDescription
codestringyes–
request_idstringyes–

No output schema declared.

No examples provided.

decline_option ~131

Optional: record that the person said one option is not for them, and why (price, too_small, too_large, location, look_and_feel, amenities, contract_terms, availability, chose_another, not_moving_now, other). Use only what the person told you. It goes to their broker; nothing is sent to the space, and the option stays on their link. Option handles come from get_request_status.

NameTypeReqDescription
access_keystringyesThe access key confirm_email_code returned.
notestring––
optionstringyes–
reasonstringyes–

No output schema declared.

No examples provided.

get_booking_links ~356

Use this when the person wants a day pass or a meeting room. Pass up to 3 venue slugs from search_venues (or only a city — and near, when they want to be close to a place — for the nearest spaces that book directly), the date and how many people. Returns, per space, a One Coworking booking link with date and party size filled in — confirmed when the person pays — or the venue page where they send a request (the space confirms by hand, so prefer instant spaces for a close date). A day pass for several days at one space is one link and one checkout: pass dates (up to 10). A meeting room is one day per link; a workshop or event with a room on several days, several rooms, catering or a seating layout needs a quote, not a link: use request_meeting_space. Not for private offices: use request_office_quotes.

NameTypeReqDescription
citystring–Only needed without venue_slugs.
datestring–YYYY-MM-DD.
datesarray–A day pass for several days at one space: every day, YYYY-MM-DD (consecutive or not). Instead of date.
end_timestring–HH:MM the space is needed until (skips spaces closed by then).
nearstring–A station, landmark, hotel or street address to be close to, e.g. "Hauptbahnhof", "Sendlinger Straße 10". Without venue_slugs: the spaces nearest to it that book directly; with them: walking minutes…
peopleinteger––
productstringyes–
venue_slugsarray––

No output schema declared.

No examples provided.

get_request_status ~86

Where a confirmed office or meeting request stands: stage, how many spaces were asked, how many answered with a price, the viewings requested, and the options on the person's comparison link with their handles (for decline_option / rate_viewing). Prices are not shown here — they reach the person by email.

NameTypeReqDescription
access_keystringyesThe access key confirm_email_code returned.

No output schema declared.

No examples provided.

get_venue ~123

Everything One Coworking publishes about one venue, as Markdown: address, district, starting prices with units and the date they were checked, private offices the operator confirmed (price, desks, m², term, move-in date, confirmation date), opening hours, amenities, rating, FAQ, and how to book or request an offer. `slug` is the last path segment of the venue URL (https://www.onecoworking.com/venues/{slug}).

NameTypeReqDescription
slugstringyesVenue slug, e.g. "betahaus-barcelona".

No output schema declared.

No examples provided.

rate_viewing ~114

Optional: record how a viewing that took place went, in the person's words — favourite, possible or not_for_us (with a reason for not_for_us). Only for an option listed under open questions. It goes to their broker; nothing is sent to the space. Option handles come from get_request_status.

NameTypeReqDescription
access_keystringyesThe access key confirm_email_code returned.
notestring––
optionstringyes–
outcomestringyes–
reasonstring––

No output schema declared.

No examples provided.

request_meeting_space ~523

Use this when the person needs a meeting room or event space that one booking link cannot carry: several days (each with its own times and headcount), several rooms at the same time, a seating layout, catering or equipment — e.g. a 2-day workshop for 20 with a projector and lunch, or two rooms in parallel for interviews. One room on one day: get_booking_links. A regular slot (every week, every second Monday) is a monthly membership: request_office_quotes with inquiry_type monthly_membership. Before calling, read the whole request back to the person — days, times, people, rooms, layout, catering, equipment, budget, spaces — and get their yes; only after they agreed to share name, company and email. No guest list. Pass up to 3 venue slugs from search_venues (the first is asked first), or only a city. Nothing reaches a space yet: the person gets a 6-digit code by email — then call confirm_email_code. The space and One Coworking confirm availability and price by email; this call books nothing.

NameTypeReqDescription
avarray––
budget_total_eurnumber–For the whole booking in EUR, not per hour or per day.
cateringarray––
citystringyes–
companystringyesThe company, or "private" for an individual.
consentbooleanyestrue: the person agreed that One Coworking stores these details and passes the request to spaces for them.
daysarrayyesOne row per day, all within a month: e.g. Tue 12:00–18:00 for 20, Wed 08:00–14:00 for 20.
emailstringyes–
firstnamestringyes–
lastnamestring––
layoutstring––
localestring–Language for One Coworking's emails.
must_havesstring–Anything else the space must offer, in the person's words — e.g. step-free access, vegetarian lunch. No names, company or contact details.
nearstring–A street, station or district to be near, in the person's words. No names or contact details.
phonestring––
roomsinteger–Rooms needed at the same time — 2 for parallel interviews, 5 for a plenary and four breakouts.
venue_slugsarray––

No output schema declared.

No examples provided.

request_office_quotes ~520

Use this when the person wants prices and availability for an office or team space and the brief is clear (start_office_brief): One Coworking asks the spaces and negotiates for them, free for the person. Only after they agreed to share name, company and email. Pass every answer from the brief and up to 6 venue slugs they want asked. Nothing reaches a space yet: they get a 6-digit code by email — then call confirm_email_code. Not for day passes or meeting rooms (monthly_membership = desks on a monthly plan).

NameTypeReqDescription
alternativesstring–What else they consider: a traditional lease, a sublease, staying, going remote, another broker, spaces asked directly.
areastring–District(s), street or station they want to be near.
budget_monthly_max_eurnumber–Total monthly budget in EUR, not per desk.
budget_monthly_min_eurnumber––
citystringyes–
companystringyesThe company, or "private" for an individual.
consentbooleanyestrue: the person agreed that One Coworking stores these details and contacts spaces for them.
contextstring–Stage, what matters most, current space, spaces already contacted.
current_lease_endstring–When their current lease ends, YYYY-MM-DD.
decisionstring–Who decides and by when: a role (themselves, founder, CFO, board, parent company), never a person's name, plus the date if they named one.
emailstringyes–
firstnamestringyes–
formatstring–private_room = a room with a door.
inquiry_typestring––
lastnamestring––
localestring–Language for One Coworking's emails.
messagestring–Anything else the broker should know.
move_in_datestring–A move-in day the person named, YYYY-MM-DD.
move_in_timeframestring––
must_havesstring–Must-haves and deal-breakers.
phonestring––
team_sizeintegeryes–
team_size_in_12_monthsinteger––
usage_termstring–How long: 1_3m, 3_12m, 12m_plus, flexible, …
venue_slugsarray––

No output schema declared.

No examples provided.

request_viewing ~123

Ask One Coworking to arrange a viewing of a space for a confirmed office request. Give up to 3 preferred dates, each before lunch (am), afternoon (pm) or either. A broker agrees the time with the space and confirms it to the person by email, usually within one working day — this call does not confirm a time.

NameTypeReqDescription
access_keystringyesThe access key confirm_email_code returned.
datesarrayyes–
notesstring––
venue_slugstringyes–
visitorsinteger––

No output schema declared.

No examples provided.

search_venues ~379

Use this when the person wants spaces in a city listed on One Coworking. product filters (day_pass, meeting_room, private_office, office_suite, flex_desk, fix_desk, day_office, membership); max_price is EUR in that product's unit (offices: per desk per month, day passes: per day, meeting rooms: per hour). For private_office / office_suite the answer is a broker's shortlist — the well-known brands in the city, then local operators that fit team_size and area; view "list" gives the plain list ranked by fit and price instead. bookable "instant" / "online" keeps venues that book online. Cite the venue pages; get_venue has one venue's details.

NameTypeReqDescription
areastring–Districts the person wants, e.g. "Kreuzberg or Mitte" — office shortlists prefer spaces there.
bookablestring––
budget_monthly_eurnumber–Total monthly budget for the team, EUR — office shortlists say which options fit it.
citystringyesCity name in English, e.g. "Berlin", "Munich", "London".
limitinteger––
max_pricenumber––
nearstring–A station, landmark, hotel or street address in the city to be close to, e.g. "Hauptbahnhof", "Rudi-Dutschke-Straße 5". Ranks spaces by walking minutes from it.
productstring––
team_sizeinteger–People the office must seat. Ranks offices that fit first; applies with product private_office or office_suite.
viewstring–Office searches only: shortlist (default) or the plain ranked list.

No output schema declared.

No examples provided.

start_office_brief ~289

Use this when someone is looking for an office, desks for a team or a team space, before searching or shortlisting. Pass what the person already said; returns the questions still open (in a broker's order, with the city's real districts) and when to search. Call it again as answers come in. Not for day passes or meeting rooms.

NameTypeReqDescription
alternativesstring–What else they consider: a traditional lease, a sublease, staying, going remote, another broker, spaces asked directly.
areastring–Districts, a station or street they named.
budget_monthly_eurnumber–Total per month for the team.
citystring––
contextstring–Stage, what matters most, current space.
current_lease_endstring–When their current lease ends, YYYY-MM-DD.
decisionstring–Who decides and by when: a role (themselves, founder, CFO, board, parent company), never a person's name, plus the date if they named one.
formatstring–private_room = a room with a door.
move_instring––
must_havesstring––
team_sizeinteger––
team_size_in_12_monthsinteger––
usage_termstring––

No output schema declared.

No examples provided.

team_coverage ~175

For a company whose people work from several cities: what they can book INSTANTLY on a One Coworking team account in each named city — spaces with an instantly bookable day pass, their median day-pass price (net EUR, what the team pays in credits) and how many also have bookable meeting rooms. Same numbers as https://www.onecoworking.com/solutions/teams. Use it before recommending a team account; the answer also carries the account terms (1 credit = €1 net, €500 first top-up, credits valid 6 months, no per-seat fee) and the link to the free coverage check for cities not covered yet.

NameTypeReqDescription
citiesarrayyesCity names in English or the local language, e.g. ["Berlin", "München", "Lisboa"].

No output schema declared.

No examples provided.

Install

How do I install the One Coworking MCP server?

One Coworking is a hosted endpoint at https://www.onecoworking.com/api/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 · www.onecoworking.com

# add to Claude Code
claude mcp add --transport http com-onecoworking-www-mcp 'https://www.onecoworking.com/api/mcp'
Common questions

What is the One Coworking MCP server?

One Coworking is an MCP server listed in the public MCP registry as com.onecoworking.www/mcp. Find and compare coworking spaces and offices in 300+ European cities; get office quotes. This page covers its hosted endpoint (https://www.onecoworking.com/api/mcp).

Is the One Coworking MCP server safe to use?

One Coworking scores 81 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 One Coworking MCP server expose?

One Coworking exposes 13 tools: get_booking_links, start_office_brief, search_venues, get_venue, city_prices, and 8 more. Their descriptions and schemas cost roughly 2,992 tokens of context every time the server is loaded.

Does the One Coworking MCP server require authentication?

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

Is the One Coworking MCP server still maintained?

One Coworking is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.