MCP server directory
58,417 MCP servers that connect AI assistants to tools and data, from the official MCP Registry and the community lists, updated every hour.
- 16 categories
- 37,823 remote servers
- Updated every hour
Liters to US gallons, number discardedio.github.sadri-dridi/litre-gal
Liters to US gallons, number discarded
Joules to calories, number discardedio.github.sadri-dridi/joule-cal
Joules to calories, number discarded
Ascii85 frame shape, input discardedio.github.sadri-dridi/ascii85-ok
Ascii85 frame shape, input discarded
Whitespace word count, text discardedio.github.sadri-dridi/words-ok
Whitespace word count, text discarded
Unix day-of-year from secondsio.github.sadri-dridi/unix-doy
Unix day-of-year from seconds
Days in the current UTC monthio.github.sadri-dridi/month-days
Days in the current UTC month
BLAKE3 hex length, input discardedio.github.sadri-dridi/blake3-len
BLAKE3 hex length, input discarded
UTC fiscal quarter 1-4io.github.sadri-dridi/fiscal-q
UTC fiscal quarter 1-4
XXH3 hex length, input discardedio.github.sadri-dridi/xxh3-len
XXH3 hex length, input discarded
Pragma token charset, value discardedio.github.sadri-dridi/pragma-ok
Pragma token charset, value discarded
FNV-1a 64 hex length, input discardedio.github.sadri-dridi/fnv64-len
FNV-1a 64 hex length, input discarded
HSTS max-age band, value discardedio.github.sadri-dridi/hsts-ok
HSTS max-age band, value discarded
ALPN protocol token, value discardedio.github.sadri-dridi/alpn-ok
ALPN protocol token, value discarded
Watts to horsepower, number discardedio.github.sadri-dridi/watt-hp
Watts to horsepower, number discarded
Knots to km/h, number discardedio.github.sadri-dridi/knot-kmh
Knots to km/h, number discarded
Lowercase hex charset, input discardedio.github.sadri-dridi/hex-lcase
Lowercase hex charset, input discarded
Base45 charset, input discardedio.github.sadri-dridi/base45-ok
Base45 charset, input discarded
PSI to bar, number discardedio.github.sadri-dridi/psi-bar
PSI to bar, number discarded
Punycode host shape, value discardedio.github.sadri-dridi/puny-host
Punycode host shape, value discarded
dotenv key count, values discardedio.github.sadri-dridi/dotenv-ok
dotenv key count, values discarded
plist key count, values discardedio.github.sadri-dridi/plist-ok
plist key count, values discarded
SNI hostname shape, value discardedio.github.sadri-dridi/sni-ok
SNI hostname shape, value discarded
Via hop count, value discardedio.github.sadri-dridi/via-ok
Via hop count, value discarded
KSUID timestamp prefix, value discardedio.github.sadri-dridi/ksuid-ts
KSUID timestamp prefix, value discarded
Acres to hectares, number discardedio.github.sadri-dridi/acre-ha
Acres to hectares, number discarded
Lux band check, number discardedio.github.sadri-dridi/lux-ok
Lux band check, number discarded
BTU to kilojoules, number discardedio.github.sadri-dridi/btu-kj
BTU to kilojoules, number discarded
yEnc header shape, input discardedio.github.sadri-dridi/yenc-ok
yEnc header shape, input discarded
Z85 charset, input discardedio.github.sadri-dridi/z85-ok
Z85 charset, input discarded
IDNA label charset, host discardedio.github.sadri-dridi/idn-ok
IDNA label charset, host discarded
RTF header check, body discardedio.github.sadri-dridi/rtf-ok
RTF header check, body discarded
LCM of two integers, numbers discardedio.github.sadri-dridi/lcm-ok
LCM of two integers, numbers discarded
Integer power band, numbers discardedio.github.sadri-dridi/pow-ok
Integer power band, numbers discarded
TeX control-word count, body discardedio.github.sadri-dridi/tex-ok
TeX control-word count, body discarded
GCD of two integers, numbers discardedio.github.sadri-dridi/gcd-ok
GCD of two integers, numbers discarded
label[for] count, markup discardedio.github.sadri-dridi/label-for-ok
label[for] count, markup discarded
SSH FP record shape, value discardedio.github.sadri-dridi/sshfp-record
SSH FP record shape, value discarded
FLAC magic-byte check, file discardedio.github.sadri-dridi/flac-magic
FLAC magic-byte check, file discarded
UTC start of the current monthio.github.sadri-dridi/month-start
UTC start of the current month
Unix week number from secondsio.github.sadri-dridi/epoch-week
Unix week number from seconds
ARIA landmark count, markup discardedio.github.sadri-dridi/landmark-ok
ARIA landmark count, markup discarded
German PLZ digit shape, value discardedio.github.sadri-dridi/de-plz
German PLZ digit shape, value discarded
Open Graph meta count, markup discardedio.github.sadri-dridi/og-meta-n
Open Graph meta count, markup discarded
JSON-LD script count, markup discardedio.github.sadri-dridi/json-ld-n
JSON-LD script count, markup discarded
Gradle dependency count, body discardedio.github.sadri-dridi/gradle-ok
Gradle dependency count, body discarded
CSR PEM fence check, body discardedio.github.sadri-dridi/csr-fence
CSR PEM fence check, body discarded
DER sequence tag check, body discardedio.github.sadri-dridi/der-ok
DER sequence tag check, body discarded
SPKI prefix check, key discardedio.github.sadri-dridi/spki-ok
SPKI prefix check, key discarded
From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data. Last synced Nov 5, 2026.
Frequently asked questions
What is MCP?
The Model Context Protocol is an open standard that lets an AI assistant (Claude, ChatGPT, Cursor, an agent) call outside tools and read outside data through a "server". A remote server is a URL you add to your client; a local one runs on your computer from a package (npm, PyPI, Docker).
How do I add an MCP server to Claude or Cursor?
Open the server's page here and copy its configuration block into your client's MCP settings file, then restart the client. Remote servers need only the URL; local ones need Node (npx), Python (uvx) or Docker installed.
Are these servers safe?
Anyone can publish to the registry. A server can read what you give it access to and act on your behalf, so prefer servers with public source code from a publisher you recognise, and grant the smallest scope that works.