MCP Server List
Every MCP server in the official registry that has something to show: 34 729 in total, of which 17 784 answered our last handshake and 3 727 are listed as active but do not respond. Sorted by uptime, real installs and the number of tools each one exposes — not by date added.
New to this? What an MCP server is, and what all 34 729 of them expose — written from our own handshakes, not from the specification.
17 784 answering 12 426 with real installs 265 863 tools indexed
UTC ISO weekday 1-7
ISO weekday 1-7 band
ISO week 01-53 band
UTC ISO week-yearing year
ISO year-week YYYY-Www
ISO-2022 ESC sequence count, input discarded
ISSN URN shape, value discarded
Julian day number band
Julian Day integer band
JOSE compact-part count, value discarded
journald cursor shape, value discarded
Japanese era year band
JS escape sequence count, input discarded
JSON Merge Patch key count, body discarded
JSON minify shape, body discarded
JSON Pointer token count, path discarded
JSON type-tag count, values discarded
JSON5 comment/key shape, body discarded
JWKS keys array count, body discarded
JWT header.payload.sig shape, value discarded
Kilocalories to kilojoules, number discarded
kebab-case segment count, value discarded
Keep-Alive timeout band, value discarded
Keep-Alive timeout band, value discarded
Kilohertz to megahertz, number discarded
KML Placemark count, body discarded
Knots to m/s, number discarded
Kilopascals to bar, number discarded
km/h to m/s, number discarded
KSI to megapascals, number discarded
KSUID 27-char shape, value discarded
Last-Modified HTTP-date shape, value discarded
ISO-8859-1 byte count, text discarded
ISO-8859-1 byte band, value discarded
Leagues to kilometers, number discarded
Gregorian leap-year band
Whether UTC day can have a leap second
LEEF attr count, line discarded
Less variable count, body discarded
Survey links to meters, number discarded
Link header relation count, value discarded
Location absolute-URL shape, value discarded
lockfile entry-band, body discarded
lowercase charset, value discarded
Liters/min to liters/s, number discarded
Lux to phot, number discarded
Light-years to kilometers, number discarded
Mach number to m/s at STP, number discarded
Mach-O magic band, bytes discarded
MacRoman high-byte band, input discarded
magnet: xt shape, value discarded
maildir info-flag charset, value discarded
MD2 hex length, input discarded
MD4 hex length, input discarded
MD4 hex length, input discarded
MetroHash hex length, input discarded
MetroHash64 hex length, input discarded
Milligrams to grams, number discarded
Megahertz to gigahertz, number discarded
Miles to meters, number discarded
MIC 4-char market code, value discarded
Mils to millimeters, number discarded
MIME boundary count, body discarded
UTC minute 0-59 band
Minguo year band
Modified Julian day band
Modified Julian Day integer
Milliliters to liters, number discarded
mmHg to kilopascals, number discarded
UTC first day of the current month
Days in current UTC month
UTC last day of the current month
Days to pad current UTC month to 31
Miles/h to m/s, number discarded
UTC millisecond 0-999 band
multibase prefix charset, value discarded
multibase z-prefix, value discarded
multihash prefix shape, value discarded
multihash sha2 prefix, value discarded
MurmurHash3 hex length, input discarded
MurmurHash3 hex length, input discarded
nanoid URL-safe charset, value discarded
NEL JSON key count, body discarded
NetFlow version nibble, bytes discarded
ni: hash-URI shape, value discarded
Nits to cd/m2, number discarded
Nix attr-set brace count, body discarded
LF count, text discarded
newline count, text discarded
Nanometers to meters, number discarded
Nautical miles to kilometers, number discarded
nupkg nuspec id shape, body discarded
Wavefront OBJ vertex count, file discarded
Mongo ObjectId 24-hex, value discarded
ObjectId 4-byte time prefix, value discarded
ASN.1 OID arc shape, value discarded
Troy ounces to grams, number discarded
Pascals to kilopascals, number discarded
package.json key count, body discarded
Packer source block count, body discarded