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Remote MCP Servers

Servers you connect to by URL — nothing to install. All 39 930 of them have a network address, which means their uptime can actually be measured: 33 067 answered our last handshake and 11 774 ask who you are first, most of them through a browser sign-in rather than a key. Checked every 15 minutes.

33 067 answering 11 774 ask who you are 97% on streamable-http 457 599 tools

5 501–5 600 of 39 930

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Lowercase hex charset, input discarded
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Lowercase hex charset, input discarded

31 tools answering
Lowercase hex charset, input discarded
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Lowercase hex charset, input discarded

31 tools answering
Uppercase hex charset, input discarded
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Uppercase hex charset, input discarded

31 tools answering
Uppercase hex charset, input discarded
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Uppercase hex charset, input discarded

31 tools answering
Hex key length band, value discarded
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Hex key length band, value discarded

31 tools answering
HighwayHash hex length, input discarded
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HighwayHash hex length, input discarded

31 tools answering
Hostname label count
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Hostname label count

31 tools answering
Hostname shape, value discarded
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Hostname shape, value discarded

31 tools answering
host:port shape, value discarded
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host:port shape, value discarded

31 tools answering
Hostname shape, value discarded
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Hostname shape, value discarded

31 tools answering
Horsepower to watts
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Horsepower to watts

31 tools answering
HSTS max-age band, value discarded
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HSTS max-age band, value discarded

31 tools answering
HTML escape length, text discarded
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HTML escape length, text discarded

31 tools answering
HTML h1 count, markup discarded
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HTML h1 count, markup discarded

31 tools answering
BCP 47 lang attribute shape
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BCP 47 lang attribute shape

31 tools answering
HTML meta tag count, markup discarded
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HTML meta tag count, markup discarded

31 tools answering
HTML script tag count, markup discarded
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HTML script tag count, markup discarded

31 tools answering
HTML tag count, markup discarded
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HTML tag count, markup discarded

31 tools answering
html lang attribute shape, markup discarded
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html lang attribute shape, markup discarded

31 tools answering
HTTP 406 not-acceptable
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Meaning of HTTP 406.

31 tools answering
HTTP 408 request-timeout
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Meaning of HTTP 408.

31 tools answering
HTTP 409 conflict
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Meaning of HTTP 409.

31 tools answering
HTTP 412 precondition-failed
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Meaning of HTTP 412.

31 tools answering
HTTP 413 payload-too-large
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Meaning of HTTP 413.

31 tools answering
HTTP 414 uri-too-long
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Meaning of HTTP 414.

31 tools answering
HTTP 415 unsupported-media
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Meaning of HTTP 415.

31 tools answering
HTTP 422 unprocessable
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Meaning of HTTP 422.

31 tools answering
HTTP 425 too-early
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Meaning of HTTP 425.

31 tools answering
HTTP 426 upgrade-required
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Meaning of HTTP 426.

31 tools answering
HTTP 428 precondition-required
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Meaning of HTTP 428.

31 tools answering
HTTP 431 header-fields-too-large
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Meaning of HTTP 431.

31 tools answering
HTTP 451 unavailable-legal
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Meaning of HTTP 451.

31 tools answering
HTTP 501 not-implemented
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Meaning of HTTP 501.

31 tools answering
HTTP 505 http-version
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Meaning of HTTP 505.

31 tools answering
HTTP 507 insufficient-storage
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Meaning of HTTP 507.

31 tools answering
HTTP 511 network-auth
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Meaning of HTTP 511.

31 tools answering
HTTP reason-phrase catalog size
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HTTP reason-phrase catalog size

31 tools answering
IATA airport code shape
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IATA airport code shape

31 tools answering
IBAN length/charset, value discarded
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IBAN length/charset, value discarded

31 tools answering
iCalendar shape, body discarded
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iCalendar shape, body discarded

31 tools answering
ICAO airport code shape
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ICAO airport code shape

31 tools answering
ICO magic-byte check, file discarded
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ICO magic-byte check, file discarded

31 tools answering
IDNA label charset, host discarded
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IDNA label charset, host discarded

31 tools answering
Container image tag charset, name discarded
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Container image tag charset, name discarded

31 tools answering
Inches to centimeters
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Inches to centimeters

31 tools answering
Tabs vs spaces indent, text discarded
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Tabs vs spaces indent, text discarded

31 tools answering
INI section count, body discarded
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INI section count, body discarded

31 tools answering
Amazon Ion version marker, body discarded
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Amazon Ion version marker, body discarded

31 tools answering
IPFS CID charset, value discarded
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IPFS CID charset, value discarded

31 tools answering
IPv4 shape, address discarded
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IPv4 shape, address discarded

31 tools answering
IPv6 shape, address discarded
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IPv6 shape, address discarded

31 tools answering
IRC channel name shape, value discarded
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IRC channel name shape, value discarded

31 tools answering
ISBN-10 digit shape, value discarded
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ISBN-10 digit shape, value discarded

31 tools answering
ISBN-13 digit shape, value discarded
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ISBN-13 digit shape, value discarded

31 tools answering
UTC ISO date
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UTC ISO date

31 tools answering
ISO-8601 timezone offset shape
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ISO-8601 timezone offset shape

31 tools answering
UTC ISO time only
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UTC ISO time only

31 tools answering
UTC ISO to unix seconds, value discarded
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UTC ISO to unix seconds, value discarded

31 tools answering
UTC ISO week-date
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UTC ISO week-date

31 tools answering
ISO 8601 datetime shape
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ISO 8601 datetime shape

31 tools answering
ISSN digit shape
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ISSN digit shape

31 tools answering
ISSN shape, value discarded
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ISSN shape, value discarded

31 tools answering
TICKET-123 issue key shape, value discarded
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TICKET-123 issue key shape, value discarded

31 tools answering
Joules to calories, number discarded
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Joules to calories, number discarded

31 tools answering
JPEG magic-byte check, file discarded
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JPEG magic-byte check, file discarded

31 tools answering
JS import count, source discarded
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JS import count, source discarded

31 tools answering
JSON top-level key count, values discarded
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JSON top-level key count, values discarded

31 tools answering
JSON-LD script count, markup discarded
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JSON-LD script count, markup discarded

31 tools answering
JSON Lines row count, body discarded
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JSON Lines row count, body discarded

31 tools answering
JSON Pointer shape, path discarded
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JSON Pointer shape, path discarded

31 tools answering
Pretty-print JSON shape, body discarded
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Pretty-print JSON shape, body discarded

31 tools answering
JSON Schema keyword count, body discarded
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JSON Schema keyword count, body discarded

31 tools answering
JSONL object-line count, bodies discarded
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JSONL object-line count, bodies discarded

31 tools answering
JSON-LD @type count, body discarded
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JSON-LD @type count, body discarded

31 tools answering
Julian day number
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Julian day number

31 tools answering
JWT exp claim shape, token discarded
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JWT exp claim shape, token discarded

31 tools answering
JWT header segment shape, token discarded
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JWT header segment shape, token discarded

31 tools answering
JWT three-part shape, token discarded
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JWT three-part shape, token discarded

31 tools answering
Kelvin to celsius
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Kelvin to celsius

31 tools answering
Kubernetes kind token, manifest discarded
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Kubernetes kind token, manifest discarded

31 tools answering
kebab-case shape, text discarded
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kebab-case shape, text discarded

31 tools answering
KiB to bytes, number discarded
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KiB to bytes, number discarded

31 tools answering
KiB to bytes
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KiB to bytes

31 tools answering
Kilometers to miles, number discarded
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Kilometers to miles, number discarded

31 tools answering
Knots to km/h, number discarded
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Knots to km/h, number discarded

31 tools answering
Knots to km/h
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Knots to km/h

31 tools answering
KSUID character length
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KSUID character length

31 tools answering
KSUID shape check
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KSUID shape check

31 tools answering
KSUID timestamp prefix, value discarded
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KSUID timestamp prefix, value discarded

31 tools answering
Liters to US gallons
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Liters to US gallons

31 tools answering
label[for] count, markup discarded
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label[for] count, markup discarded

31 tools answering
ARIA landmark count, markup discarded
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ARIA landmark count, markup discarded

31 tools answering
Lat/lng bounding-box shape
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Lat/lng bounding-box shape

31 tools answering
LCM of two integers, numbers discarded
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LCM of two integers, numbers discarded

31 tools answering
Whether the current UTC year is a leap year
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Whether the current UTC year is a leap year

31 tools answering
UTC leap-year flag
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UTC leap-year flag

31 tools answering
Line count, text discarded
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Line count, text discarded

31 tools answering
LIN-123 identifier shape, value discarded
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LIN-123 identifier shape, value discarded

31 tools answering
HTML link rel count, markup discarded
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HTML link rel count, markup discarded

31 tools answering
Liters to US gallons, number discarded
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Liters to US gallons, number discarded

31 tools answering

Why this list is short on names you know

Vendors publish one server each. Stripe, Notion, Figma, Slack, Linear — one entry apiece, no competing copies.

What does produce dozens of entries under one name is hosting: 75 servers sit on clauxel.com, 66 on alpic.live, most of them someone's staging environment that ended up in the registry. They are listed here like everything else, with whatever status they actually have.

What a remote server is, and how we check it →