Servers you connect to by URL — nothing to install. All 40 427 of them have a network address, which means their uptime can actually be measured: 33 448 answered our last handshake and 11 917 ask who you are first, most of them through a browser sign-in rather than a key. Checked every 15 minutes.
33 448 answering 11 917 ask who you are 97% on streamable-http 461 514 tools
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
did:ethr address shape, value discarded
did:ion suffix shape, value discarded
did:key multibase shape, value discarded
DID method shape, value discarded
did:pkh CAIP-10 shape, value discarded
did:web host shape, value discarded
did:webvh SCID shape, value discarded
Didot points to millimeters, number discarded
digit run count, text discarded
DKIM-Signature tag count, value discarded
DNT 0/1 token, value discarded
docs heading-anchor charset, value discarded
docs heading-anchor charset, value discarded
docs path segment count, value discarded
docs page slug charset, value discarded
doi: URI suffix shape, value discarded
dot.case segment count, text discarded
dot.case segment count, value discarded
Content-Disposition filename charset, value discarded
Day-of-year 1-366 band
Metric drops to milliliters, number discarded
Whether current UTC month is AU DST-heavy
Whether current UTC month is EU DST-heavy
EU DST in-force band
DXF SECTION count, file discarded
EAN-13 digit shape, value discarded
EBCDIC digit zone, input discarded
EditorConfig section count, body discarded
EDN collection count, body discarded
Python egg-info key count, body discarded
ELF magic e_type band, bytes discarded
email-ish token count, text discarded
email-ish local@host shape, value discarded
emoji code-point count, text discarded
direnv export count, body discarded
ESLint rules key count, body discarded
Ethiopic year band
Expect-CT max-age band, value discarded
Expect 100-continue shape, value discarded
Expires HTTP-date shape, value discarded
Fahrenheit to kelvin, number discarded
FarmHash hex length, input discarded
Fathoms to meters, number discarded
FBX header magic, file discarded
multi-dot extension count, value discarded
filename extension charset, value discarded
filename to MIME charset, value discarded
filename stem charset, value 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.