Servers you connect to by URL — nothing to install. All 21 317 of them have a network address, which means their uptime can actually be measured: 17 333 answered our last handshake and 4 856 ask who you are first, most of them through a browser sign-in rather than a key. Checked every 15 minutes.
17 333 answering 4 856 ask who you are 95% on streamable-http 263 495 tools
Age seconds band, value discarded
Allow method token count, value discarded
alphanumeric run count, text discarded
Angstroms to nanometers, number discarded
Ansible hosts group count, body discarded
APK ZIP local-file count, bytes discarded
APKBUILD pkgname shape, body discarded
ARC-Seal tag count, value discarded
Arcminutes to degrees, number discarded
Arcseconds to degrees, number discarded
Argon2 hex length, input discarded
Argon2d encoded shape, input discarded
Argon2i encoded shape, input discarded
argon2id encoded hash shape, value discarded
arXiv id version shape, value discarded
arXiv URI id shape, value discarded
7-bit ASCII charset, value discarded
AsyncAPI channel count, body discarded
AT Protocol DID shape, value discarded
Atmospheres to PSI, number discarded
Astronomical units to kilometers, number discarded
Authentication-Info nextnonce shape, value discarded
:authority host:port shape, value discarded
Bar to atmospheres, number discarded
Barye to pascals, number discarded
Base36 id charset, value discarded
Base56 charset, input discarded
Base62 id charset, value discarded
Base91 charset, input discarded
Baudot 5-bit band, input discarded
Oil barrels to liters, number discarded
bcrypt $2 hash shape, value discarded
bcrypt radix64 shape, input discarded
Beaufort to m/s, number discarded
Bech32 id hrp shape, value discarded
Bencode integer/dict prefix, input discarded
BER identifier octet, bytes discarded
unsigned 64-bit decimal shape, value discarded
BIMI location URL shape, value discarded
BinHex colon-frame, input discarded
BinHex 4 colon frame, input discarded
BLAKE2b hex length, input discarded
BLAKE2s hex length, input discarded
blank-line count, text discarded
API Blueprint group count, body discarded
Braille pattern count, input discarded
Buddhist year band
Celsius to kelvin, number discarded
Cables to meters, number discarded
camelCase hump count, value discarded
UTC century number
Gregorian century band
CF-Connecting-IP shape, value discarded
CF-IPCountry ISO2, value discarded
CF-Ray id hex shape, value discarded
CF-Visitor scheme token, value discarded
Cubic feet/s to m3/s, number discarded
Chains to meters, number discarded
Ciceros to millimeters, number discarded
CIDv1 base32 prefix, value discarded
CIDv0 base58btc Qm, value discarded
cid: URL shape, value discarded
CIDv0 Qm prefix, value discarded
CIDv1 multibase prefix, value discarded
CityHash64 hex length, input discarded
Centiliters to liters, number discarded
Java class CAFEBABE, bytes discarded
Centimeters to meters, number discarded
COBOL-CASE charset, value discarded
Connection token count, value discarded
Connection hop-by-hop count, value discarded
content-id base58 length, value discarded
content-address hex length, value discarded
Coptic year band
CPE 2.3 wfn field count, value discarded
crate metadata name shape, body discarded
CRC-8 hex length, input discarded
CRLF pair count, text discarded
Crockford Base32 id charset, value discarded
CSP directive count, value discarded
CSS rule count, body discarded
CSS escape sequence count, input discarded
CSV quoted-field count, input discarded
CSV data-row count, cells discarded
Carats to grams, number discarded
Cubits to meters, number discarded
CUE definition count, body discarded
CUID prefix-c shape, value discarded
CUID2 length band, value discarded
US cups to milliliters, number discarded
Hundredweight to kilograms, number discarded
CycloneDX component count, body discarded
data: URL media-type shape, value discarded
HTTP-date IMF-fixdate shape, value discarded
UTC decade start year
Gregorian decade band
Degrees to radians, number discarded
XDG desktop entry keys, body discarded
DEX magic shape, bytes discarded
Dhall let-binding count, body discarded
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.