URI schemes (IANA registry)

Registered URI schemes from the IANA Uniform Resource Identifier (URI) Schemes registry, one document per scheme with its description, registration status (Permanent, Provisional, or Historical), CRI scheme number, well-known URI support, registration template, and citable references. References that name individuals are omitted.

Browse 435 documents Use with your agent

Documents

Showing 361–384 of 435 documents

Document	Version
stuns The URI scheme "stuns" is a Permanent registration in the IANA Uniform Resource Identifier (URI) Schemes registry.	v1
submit The URI scheme "submit" is a Provisional registration in the IANA Uniform Resource Identifier (URI) Schemes registry.	v1
svn The URI scheme "svn" is a Provisional registration in the IANA Uniform Resource Identifier (URI) Schemes registry.	v1
swh The URI scheme "swh" is a Provisional registration in the IANA Uniform Resource Identifier (URI) Schemes registry.	v1
swid (swid (see [reviewer notes])) The URI scheme "swid" is a Provisional registration in the IANA Uniform Resource Identifier (URI) Schemes registry. It is described as "swid (see [reviewer notes])".	v1
swidpath (swidpath (see [reviewer notes])) The URI scheme "swidpath" is a Provisional registration in the IANA Uniform Resource Identifier (URI) Schemes registry. It is described as "swidpath (see [reviewer notes])".	v1
tag The URI scheme "tag" is a Permanent registration in the IANA Uniform Resource Identifier (URI) Schemes registry.	v1
taler The URI scheme "taler" is a Provisional registration in the IANA Uniform Resource Identifier (URI) Schemes registry.	v1
teamspeak The URI scheme "teamspeak" is a Provisional registration in the IANA Uniform Resource Identifier (URI) Schemes registry.	v1
teapot The URI scheme "teapot" is a Provisional registration in the IANA Uniform Resource Identifier (URI) Schemes registry.	v1
teapots The URI scheme "teapots" is a Provisional registration in the IANA Uniform Resource Identifier (URI) Schemes registry.	v1
tel (telephone) The URI scheme "tel" is a Permanent registration in the IANA Uniform Resource Identifier (URI) Schemes registry. It is described as "telephone".	v1
teliaeid The URI scheme "teliaeid" is a Provisional registration in the IANA Uniform Resource Identifier (URI) Schemes registry.	v1
telnet (Reference to interactive sessions) The URI scheme "telnet" is a Permanent registration in the IANA Uniform Resource Identifier (URI) Schemes registry. It is described as "Reference to interactive sessions".	v1
tftp (Trivial File Transfer Protocol) The URI scheme "tftp" is a Permanent registration in the IANA Uniform Resource Identifier (URI) Schemes registry. It is described as "Trivial File Transfer Protocol".	v1
things The URI scheme "things" is a Provisional registration in the IANA Uniform Resource Identifier (URI) Schemes registry.	v1
thismessage (multipart/related relative reference resolution) The URI scheme "thismessage" is a Permanent registration in the IANA Uniform Resource Identifier (URI) Schemes registry. It is described as "multipart/related relative reference…	v1
thzp The URI scheme "thzp" is a Historical registration in the IANA Uniform Resource Identifier (URI) Schemes registry.	v1
tii The URI scheme "tii" is a Provisional registration in the IANA Uniform Resource Identifier (URI) Schemes registry.	v1
tip (Transaction Internet Protocol) The URI scheme "tip" is a Permanent registration in the IANA Uniform Resource Identifier (URI) Schemes registry. It is described as "Transaction Internet Protocol".	v1
tn3270 (Interactive 3270 emulation sessions) The URI scheme "tn3270" is a Permanent registration in the IANA Uniform Resource Identifier (URI) Schemes registry. It is described as "Interactive 3270 emulation sessions".	v1
tool The URI scheme "tool" is a Provisional registration in the IANA Uniform Resource Identifier (URI) Schemes registry.	v1
tttps (TLS TimeToken Secure Protocol (TTTPS). A cryptographic temporal ordering proof protocol augmenting TLS 1.3 with Proof-of-Time records.) The URI scheme "tttps" is a Provisional registration in the IANA Uniform Resource Identifier (URI) Schemes registry. It is described as "TLS TimeToken Secure Protocol (TTTPS). A…	v1
turn The URI scheme "turn" is a Permanent registration in the IANA Uniform Resource Identifier (URI) Schemes registry.	v1

Source, review, and usage

Published on Koskamo by: Koskamo
Version: 436
Documents: 435 documents
Reviewed: 2026-10-05
Last approved change: 2026-10-05
Agent lookups: 0 in the last 90 days
Reuse: IANA Uniform Resource Identifier (URI) Schemes registry (iana.org/assignments/uri-schemes); registry data reproduced verbatim with references
Review status: Published by Koskamo; proposed revisions require Koskamo approval

Original sources are linked on each document. Owner approval records a publishing decision; it does not imply independent fact checking.

Use this dataset from an agent

Agents can query it without an account. POST to /api/v1/retrieve, or connect an MCP client and call koskamo_retrieve with dataset: "uri-schemes".

Set up your agent Read documents as JSON

The JSON endpoint returns document text and source links in pages. Use limit and offset to retrieve more records; total gives the dataset size.

retrieve request

curl --fail-with-body 'https://koskamo.com/api/v1/retrieve' -H 'Content-Type: application/json' --data-raw '{"query":"uri-schemes","dataset":"uri-schemes","top_k":3}'

Change history

Every change that reached this dataset. Proposals from contributors land only after Koskamo approves them.

Published by Koskamo2026-10-05
qb · v1
Published by Koskamo2026-10-05
hxxps · v1
Published by Koskamo2026-10-04
ztdnaid · v1
Published by Koskamo2026-10-04
z39.50s (Z39.50 Session) · v1
Published by Koskamo2026-10-04
z39.50r (Z39.50 Retrieval) · v1
Published by Koskamo2026-10-04
z39.50 (Z39.50 information access) · v1
Published by Koskamo2026-10-04
ymsgr · v1
Published by Koskamo2026-10-04
xri · v1
Published by Koskamo2026-10-04
xrcp · v1
Published by Koskamo2026-10-04
xmpp (Extensible Messaging and Presence Protocol) · v1