HTTP field names (IANA registry)

Registered HTTP field (header and trailer) names from the IANA Hypertext Transfer Protocol (HTTP) Field Name Registry, one document per name with its status, structured type, and defining reference.

Browse 259 documents Use with your agent

Documents

Showing 217–240 of 259 documents

Document	Version
Security-Scheme Security-Scheme is an obsoleted HTTP field name in the IANA HTTP Field Name Registry.	v1
Server Server is a permanent HTTP field name in the IANA HTTP Field Name Registry.	v1
Server-Timing Server-Timing is a permanent HTTP field name in the IANA HTTP Field Name Registry.	v1
Set-Cookie Set-Cookie is a permanent HTTP field name in the IANA HTTP Field Name Registry.	v1
Set-Cookie2 Set-Cookie2 is an obsoleted HTTP field name in the IANA HTTP Field Name Registry.	v1
Set-Txn Set-Txn is a permanent HTTP field name in the IANA HTTP Field Name Registry.	v1
SetProfile SetProfile is an obsoleted HTTP field name in the IANA HTTP Field Name Registry.	v1
Signature Signature is a permanent HTTP field name in the IANA HTTP Field Name Registry.	v1
Signature-Input Signature-Input is a permanent HTTP field name in the IANA HTTP Field Name Registry.	v1
SLUG SLUG is a permanent HTTP field name in the IANA HTTP Field Name Registry.	v1
SoapAction SoapAction is a permanent HTTP field name in the IANA HTTP Field Name Registry.	v1
Status-URI Status-URI is a permanent HTTP field name in the IANA HTTP Field Name Registry.	v1
Strict-Transport-Security Strict-Transport-Security is a permanent HTTP field name in the IANA HTTP Field Name Registry.	v1
Sunset Sunset is a permanent HTTP field name in the IANA HTTP Field Name Registry.	v1
Surrogate-Capability Surrogate-Capability is a provisional HTTP field name in the IANA HTTP Field Name Registry.	v1
Surrogate-Control Surrogate-Control is a provisional HTTP field name in the IANA HTTP Field Name Registry.	v1
TCN TCN is a permanent HTTP field name in the IANA HTTP Field Name Registry.	v1
TE TE is a permanent HTTP field name in the IANA HTTP Field Name Registry.	v1
Timeout Timeout is a permanent HTTP field name in the IANA HTTP Field Name Registry.	v1
Timing-Allow-Origin Timing-Allow-Origin is a provisional HTTP field name in the IANA HTTP Field Name Registry.	v1
Topic Topic is a permanent HTTP field name in the IANA HTTP Field Name Registry.	v1
Traceparent Traceparent is a permanent HTTP field name in the IANA HTTP Field Name Registry.	v1
Tracestate Tracestate is a permanent HTTP field name in the IANA HTTP Field Name Registry.	v1
Trailer Trailer is a permanent HTTP field name in the IANA HTTP Field Name Registry.	v1

Source, review, and usage

Published on Koskamo by: Koskamo
Version: 260
Documents: 259 documents
Reviewed: 2026-10-04
Last approved change: 2026-10-04
Agent lookups: 2 in the last 90 days
Reuse: IANA HTTP Field Name Registry (iana.org/assignments/http-fields); 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: "http-field-names".

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":"http-field-names","dataset":"http-field-names","top_k":3}'

Change history

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

Published by Koskamo2026-10-04
* · v1
Published by Koskamo2026-10-04
X-Frame-Options · v1
Published by Koskamo2026-10-04
X-Content-Type-Options · v1
Published by Koskamo2026-10-04
WWW-Authenticate · v1
Published by Koskamo2026-10-04
Warning · v1
Published by Koskamo2026-10-04
Want-Unencoded-Digest · v1
Published by Koskamo2026-10-04
Want-Repr-Digest · v1
Published by Koskamo2026-10-04
Want-Digest · v1
Published by Koskamo2026-10-04
Want-Content-Digest · v1
Published by Koskamo2026-10-04
Via · v1