MCP Server List
Every MCP server in the official registry that has something to show: 34 729 in total, of which 13 396 answered our last handshake and 8 115 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.
13 396 answering 12 426 with real installs 265 304 tools indexed
True-Client-IP shape, value discarded
Teaspoons to milliliters, number discarded
ULID 26-char Crockford shape, value discarded
ULID 48-bit time prefix, value discarded
Micrometers to millimeters, number discarded
systemd unit section count, body discarded
Unix seconds to ISO date, number discarded
Unix month 1-12 from seconds
Unix quarter 1-4 from seconds
Unix week number from seconds
Upgrade protocol token, value discarded
URL-ish token count, text discarded
URL-ish token charset, value discarded
USD def count, body discarded
UTF-16 BOM/length band, value discarded
Uuencode line length band, input discarded
begin-line mode shape, input discarded
UUID no-hyphen 32-hex, value discarded
urn:uuid shape, value discarded
urn:uuid lowercase, value discarded
UUID v2 DCE layout, value discarded
UUID v5 SHA1-name layout, value discarded
UUID v6 time-reordered layout, value discarded
UUID v7 unix-ms layout, value discarded
Volt-amperes to watts, number discarded
Via protocol hop count, value discarded
Warning warn-code band, value discarded
WASM magic version, bytes discarded
UTC Monday of the current ISO week
Watt-hours to kilojoules, number discarded
Whirlpool hex length, input discarded
Wikidata Q-id shape, value discarded
WKB endian marker, bytes discarded
WSDL operation count, body discarded
www-form key count, input discarded
X-Forwarded-For comma count, value discarded
X-Forwarded-For hop count, value discarded
X-Forwarded-Proto http/https, value discarded
XID 20-char shape, value discarded
XML declaration shape, markup discarded
XML namespace count, markup discarded
XOR-fold length, input discarded
XXH128 hex length, input discarded
UTC end of the current year
YAML anchor count, body discarded
YAML document-start count, body discarded
Yards to meters, number discarded
Days in current UTC year
ABA routing 9-digit shape, value discarded
Accept-Post media-type count, value discarded
Angstroms to meters, number discarded
ANTLR grammar rule count, body discarded
Cement bags to cubic meters, number discarded
Brake horsepower to kW, number discarded
BIC 11-char shape, value discarded
BNF production count, body discarded
BOCU-1 signature, input discarded
BTU to watt-hours, number discarded
C string escape count, input discarded
C octal-escape count, input discarded
CIDv1 raw codec prefix, value discarded
CityHash128 hex length, input discarded
cmd.exe caret-escape count, input discarded
colon-separated token count, value discarded
reverse COMB UUID layout, value discarded
Content-MD5 base64 length, value discarded
Cross-Origin-Opener-Policy token, value discarded
Cross-Origin-Resource-Policy token, value discarded
CORP same-origin/same-site token, value discarded
CP850 high-bit band, bytes discarded
CRC-64 hex length, input discarded
CRLF run count, text discarded
Citation Style Language locale shape, body discarded
CUID timestamp chunk, value discarded
Imperial cups to milliliters, number discarded
Culinary dashes to milliliters, number discarded
DOI 10. prefix shape, value discarded
Whether current UTC month is NZ DST-heavy
Whether current UTC month is US DST-heavy
DTD ELEMENT count, body discarded
Ems at 12pt to millimeters, number discarded
Ens at 12pt to millimeters, number discarded
EUC-KR lead-byte band, bytes discarded
Fahrenheit to Celsius, number discarded
FarmHash128 hex length, input discarded
FNV-1a 128 hex length, input discarded
GBK lead-byte band, bytes discarded
Google UUID timeuuid layout, value discarded
ALPN h3 token, value discarded
HMAC-SHA1 hex length, input discarded
Mechanical horsepower to kW, number discarded
UTC last day of the current half-year
Hydra operation count, body discarded
HZ ~{ ~} frame count, input discarded
Python identifier charset, value discarded
UTC ISO ordinal YYYY-DDD shape
UTC ISO quarter 1-4
UTC ISO semester 1-2
ISRC 12-char shape, value discarded
Julian Day Number integer band