Browse MCP servers
MCP Harbor, an MCP Server Registry, Directory, and Tower to Buzz.
36,476 servers
Showing 13,585–13,632 of 36,476 servers
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cairn
stdiodev.mightys/cairn
Lessons other agents already learned, by stack and situation. Read before a task, leave one after.
official 2 secrets -
BeyondFolder Directories
streamable-httpcom.beyondfolder/directories
Track SaaS directory submissions for your products via API key–gated Streamable HTTP MCP.
official -
mcp server
streamable-httpio.github.roamzy-io/mcp-server
Agent-native global eSIM: buy for 193 countries, per-MB in USDT/USDC. Agents earn 20% referral.
official 12 tools 3 secrets -
your mail mcp
stdioio.github.wildsurfer/your-mail-mcp
Read-only, self-hosted MCP access to IMAP email, mirrored locally and indexed by notmuch.
official 2 secrets -
Miles to kilometers
streamable-httpio.github.sadri-dridi/mi-to-km
Miles to kilometers
official 31 tools -
Fahrenheit to Celsius
streamable-httpio.github.sadri-dridi/f-to-c
Fahrenheit to Celsius
official 31 tools -
ISO country BR
streamable-httpio.github.sadri-dridi/cc-br
Public ISO 3166-1 record for BR.
official 31 tools -
ISO country IN
streamable-httpio.github.sadri-dridi/cc-in
Public ISO 3166-1 record for IN.
official 31 tools -
ISO country FR
streamable-httpio.github.sadri-dridi/cc-fr
Public ISO 3166-1 record for FR.
official 31 tools -
ISO country JP
streamable-httpio.github.sadri-dridi/cc-jp
Public ISO 3166-1 record for JP.
official 31 tools -
ISO country DE
streamable-httpio.github.sadri-dridi/cc-de
Public ISO 3166-1 record for DE.
official 31 tools -
ISO country GB
streamable-httpio.github.sadri-dridi/cc-gb
Public ISO 3166-1 record for GB.
official 31 tools -
ISO 8601 duration shape
streamable-httpio.github.sadri-dridi/iso-duration
ISO 8601 duration shape
official 31 tools -
UTC weekday 1-7
streamable-httpio.github.sadri-dridi/weekday-number
UTC weekday 1-7
official 31 tools -
UTC month name
streamable-httpio.github.sadri-dridi/month-name
UTC month name
official 31 tools -
UTC hour
streamable-httpio.github.sadri-dridi/hour-utc
UTC hour
official 31 tools -
JSON byte count, body discarded
streamable-httpio.github.sadri-dridi/json-bytes
JSON byte count, body discarded
official 31 tools -
Hex encode, input discarded
streamable-httpio.github.sadri-dridi/hex-ok
Hex encode, input discarded
official 31 tools -
SHA-1, input discarded
streamable-httpio.github.sadri-dridi/sha1-ok
SHA-1, input discarded
official 31 tools -
Byte count, text discarded
streamable-httpio.github.sadri-dridi/byte-count
Byte count, text discarded
official 31 tools -
Character count, text discarded
streamable-httpio.github.sadri-dridi/char-count
Character count, text discarded
official 31 tools -
URL path only
streamable-httpio.github.sadri-dridi/url-path
URL path only
official 31 tools -
URL origin only
streamable-httpio.github.sadri-dridi/url-origin
URL origin only
official 31 tools -
HTTP 302 found
streamable-httpio.github.sadri-dridi/http-302
Meaning of HTTP 302.
official 31 tools -
HTTP 503 unavailable
streamable-httpio.github.sadri-dridi/http-503
Meaning of HTTP 503.
official 31 tools -
HTTP 301 moved-permanently
streamable-httpio.github.sadri-dridi/http-301
Meaning of HTTP 301.
official 31 tools -
HTTP 204 no-content
streamable-httpio.github.sadri-dridi/http-204
Meaning of HTTP 204.
official 31 tools -
HTTP 403 forbidden
streamable-httpio.github.sadri-dridi/http-403
Meaning of HTTP 403.
official 31 tools -
Europe/Amsterdam clock
streamable-httpio.github.sadri-dridi/tz-europe-amsterdam
Current local time in Europe/Amsterdam.
official 31 tools -
Pacific/Auckland clock
streamable-httpio.github.sadri-dridi/tz-pacific-auckland
Current local time in Pacific/Auckland.
official 31 tools -
Europe/Madrid clock
streamable-httpio.github.sadri-dridi/tz-europe-madrid
Current local time in Europe/Madrid.
official 31 tools -
Asia/Hong_Kong clock
streamable-httpio.github.sadri-dridi/tz-asia-hong-kong
Current local time in Asia/Hong_Kong.
official 31 tools -
Asia/Singapore clock
streamable-httpio.github.sadri-dridi/tz-asia-singapore
Current local time in Asia/Singapore.
official 31 tools -
America/Denver clock
streamable-httpio.github.sadri-dridi/tz-america-denver
Current local time in America/Denver.
official 31 tools -
America/Chicago clock
streamable-httpio.github.sadri-dridi/tz-america-chicago
Current local time in America/Chicago.
official 31 tools -
UTC clock
streamable-httpio.github.sadri-dridi/tz-utc
Current local time in UTC.
official 31 tools -
Europe/Berlin clock
streamable-httpio.github.sadri-dridi/tz-europe-berlin
Current local time in Europe/Berlin.
official 31 tools -
Europe/London clock
streamable-httpio.github.sadri-dridi/tz-europe-london
Current local time in Europe/London.
official 31 tools -
Language hi
streamable-httpio.github.sadri-dridi/lang-hi
ISO 639 language tag hi.
official 31 tools -
Language ru
streamable-httpio.github.sadri-dridi/lang-ru
ISO 639 language tag ru.
official 31 tools -
Language nl
streamable-httpio.github.sadri-dridi/lang-nl
ISO 639 language tag nl.
official 31 tools -
Language it
streamable-httpio.github.sadri-dridi/lang-it
ISO 639 language tag it.
official 31 tools -
Language ko
streamable-httpio.github.sadri-dridi/lang-ko
ISO 639 language tag ko.
official 31 tools -
Language ar
streamable-httpio.github.sadri-dridi/lang-ar
ISO 639 language tag ar.
official 31 tools -
Language pt
streamable-httpio.github.sadri-dridi/lang-pt
ISO 639 language tag pt.
official 31 tools -
Language fr
streamable-httpio.github.sadri-dridi/lang-fr
ISO 639 language tag fr.
official 31 tools -
Language de
streamable-httpio.github.sadri-dridi/lang-de
ISO 639 language tag de.
official 31 tools -
Language ja
streamable-httpio.github.sadri-dridi/lang-ja
ISO 639 language tag ja.
official 31 tools
Search this catalogue from your agent
The registry is itself an MCP server. Add it once and your agent runs these same searches, with no account and no key.
claude mcp add --transport http mcp-registry-search https://ai.mcpharbor.dev/mcp