Constrained RESTful Environments (core)

Document Date Status IPR AD/Shepherd
Active Internet-Drafts (14 hits)
20 pages
draft-amsuess-core-coap-over-gatt-08
CoAP over GATT (Bluetooth Low Energy Generic Attributes)
2025-10-20
I-D Exists
Adopted by a WG
14 pages
draft-bormann-core-responses-06
CoAP: Non-traditional response forms
2025-10-20
I-D Exists
Adopted by a WG
44 pages 2025-09-22
I-D Exists
WG Document
34 pages
draft-ietf-core-coap-bp-01
Constrained Application Protocol (CoAP) over Bundle Protocol (BP)
2025-10-14
I-D Exists
WG Document
14 pages
draft-ietf-core-coap-pm-05
Constrained Application Protocol (CoAP) Performance Measurement Option
2025-10-20
I-D Exists
WG Document 		1
29 pages
draft-ietf-core-corr-clar-03
Constrained Application Protocol (CoAP): Corrections and Clarifications
2025-12-22
I-D Exists
WG Document
Dec 2029
65 pages
draft-ietf-core-groupcomm-proxy-05
Proxy Operations for CoAP Group Communication
2025-09-03
I-D Exists
WG Document
38 pages
draft-ietf-core-multicast-notifications-proxy-00
Using Proxies for Observe Notifications as CoAP Multicast Responses
2025-10-20
I-D Exists
WG Document
74 pages
draft-ietf-core-observe-multicast-notifications-13
Observe Notifications as CoAP Multicast Responses
2025-10-20
I-D Exists
WG Document
58 pages 2025-09-03
I-D Exists
WG Document
25 pages
draft-ietf-core-oscore-id-update-05
Identifier Update for OSCORE
2025-10-20
I-D Exists
WG Document
15 pages
draft-ietf-core-oscore-key-limits-06
Key Usage Limits for OSCORE
2026-01-07
New
I-D Exists
WG Document
69 pages
draft-ietf-core-oscore-key-update-12
Key Update for OSCORE (KUDOS)
2025-10-20
I-D Exists
WG Document
18 pages
draft-ietf-core-uri-path-abbrev-02
URI-Path abbreviation in CoAP
2025-10-20
I-D Exists
WG Document
May 2026
Active with the IESG Internet-Drafts (6 hits)
6 pages
draft-ietf-core-coap-dtls-alpn-05
ALPN ID Specification for CoAP over DTLS
2025-08-11
RFC Ed Queue : EDIT 122
Submitted to IESG for Publication : Informational
Reviews: secdir IETF Last Call artart IETF Last Call genart IETF Last Call dnsdir IETF Last Call
Feb 2025 		Mike Bishop
Marco Tiloca
35 pages 2025-09-16
RFC Ed Queue : EDIT 122
Submitted to IESG for Publication : Proposed Standard
Reviews: dnsdir tsvart IETF Last Call genart IETF Last Call artart IETF Last Call dnsdir Early dnsdir Early
Feb 2025 		1 Mike Bishop
Marco Tiloca
112 pages
draft-ietf-core-groupcomm-bis-15
Group Communication for the Constrained Application Protocol (CoAP)
2025-09-25
IESG Evaluation::Revised I-D Needed 94
Submitted to IESG for Publication : Proposed Standard
Reviews: intdir secdir tsvart dnsdir artart IETF Last Call tsvart IETF Last Call secdir IETF Last Call genart IETF Last Call dnsdir IETF Last Call
Aug 2024
Action Holders: Esko Dijk 94, Marco Tiloca 94 		Mike Bishop
Carsten Bormann
58 pages
draft-ietf-core-href-30
Constrained Resource Identifiers
2025-11-21
RFC Ed Queue : EDIT 66
Submitted to IESG for Publication : Proposed Standard
Reviews: secdir IETF Last Call artart IETF Last Call genart IETF Last Call
Nov 2024 		Mike Bishop
Thomas Fossati
129 pages
draft-ietf-core-oscore-groupcomm-28
Group Object Security for Constrained RESTful Environments (Group OSCORE)
2025-12-23
Approved-announcement to be sent::AD Followup 80
Submitted to IESG for Publication : Proposed Standard
Reviews: tsvart tsvart IETF Last Call secdir IETF Last Call artart IETF Last Call genart IETF Last Call
Aug 2024
Action Holder: Mike Bishop 		Mike Bishop
Christian Amsüss
8 pages
draft-ietf-core-yang-sid-pen-06
YANG-CBOR: Allocating SID ranges for PEN holders
2025-12-30
New
In Last Call (ends 2026-01-13)
Submitted to IESG for Publication : Proposed Standard
Reviews: iotdir artart IETF Last Call genart IETF Last Call yangdoctors IETF Last Call opsdir IETF Last Call secdir IETF Last Call
Dec 2025
Action Holder: Mike Bishop 		Mike Bishop
Marco Tiloca
Expired Internet-Drafts (14 hits)
5 pages
draft-bormann-core-yang-sid-pen-02
YANG-CBOR: Allocating SID ranges for PEN holders
2025-03-19
Expired
Adopted by a WG
22 pages
draft-ietf-core-attacks-on-coap-06
Attacks on the Constrained Application Protocol (CoAP)
2025-06-24
Expired
WG Document
41 pages
draft-ietf-core-coap-pubsub-18
A publish-subscribe architecture for the Constrained Application Protocol (CoAP)
2025-02-28
Expired
Waiting for WG Chair Go-Ahead : Proposed Standard
Mar 2025
Esko Dijk
18 pages
draft-ietf-core-cocoa-03
CoAP Simple Congestion Control/Advanced
2018-02-21
Expired
WG Document : Informational
Reviews: genart tsvart opsdir secdir opsdir tsvart Early 		Mirja Kühlewind
Jaime Jimenez
49 pages
draft-ietf-core-comi-20
CoAP Management Interface (CORECONF)
2025-05-06
Expired
WG Document
Mar 2025
Michael Richardson
27 pages
draft-ietf-core-conditional-attributes-11
Conditional Query Parameters for CoAP Observe
2025-03-16
Expired
Waiting for WG Chair Go-Ahead
Review: iotdir Early
Nov 2024
Jaime Jimenez
47 pages
draft-ietf-core-coral-06
The Constrained RESTful Application Language (CoRAL)
2024-03-04
Expired
WG Document
Mar 2026
14 pages
draft-ietf-core-dynlink-14
Dynamic Resource Linking for Constrained RESTful Environments
2021-07-12 Expired
WG Document
Nov 2025 		3
15 pages
draft-ietf-core-fasor-02
Fast-Slow Retransmission Timeout and Congestion Control Algorithm for CoAP
2023-03-13
Expired
WG Document
Review: tsvart Early 		3
25 pages
draft-ietf-core-interfaces-14
Reusable Interface Definitions for Constrained RESTful Environments
2019-03-11
Expired
WG Document : Informational
Dec 2026
20 pages
draft-ietf-core-links-json-10
Representing Constrained RESTful Environments (CoRE) Link Format in JSON and CBOR
2018-02-26 Expired
Submitted to IESG for Publication : Proposed Standard
Reviews: genart IETF Last Call secdir IETF Last Call artart IETF Last Call 		Alexey Melnikov
Jaime Jimenez
14 pages
draft-ietf-core-rd-dns-sd-05
CoRE Resource Directory: DNS-SD mapping
2019-07-07
Expired
WG Document
50 pages 2025-07-07
Expired
WG Document
17 pages
draft-ietf-core-yang-library-03
Constrained YANG Module Library
2021-01-11
Expired
WG Document
Nov 2025
Carsten Bormann
RFCs (29 hits)
21 pages
draft-ietf-core-problem-details-08
Concise Problem Details for Constrained Application Protocol (CoAP) APIs
2022-07-06
Became RFC 9290 (Proposed Standard)
Submitted to IESG for Publication : Proposed Standard 		Francesca Palombini
Jaime Jimenez
22 pages
RFC 6690
Constrained RESTful Environments (CoRE) Link Format Errata
2012-08
Proposed Standard RFC 		Barry Leiba
112 pages
RFC 7252
The Constrained Application Protocol (CoAP) Errata
2014-06
Proposed Standard RFC
Updated by rfc7959, rfc8613, rfc8974, rfc9175, rfc9876 		Barry Leiba
46 pages
RFC 7390
Group Communication for the Constrained Application Protocol (CoAP)
2014-10
Experimental RFC 		Barry Leiba
30 pages
RFC 7641
Observing Resources in the Constrained Application Protocol (CoAP)
2015-09
Proposed Standard RFC
Updated by rfc8323 		Barry Leiba
37 pages
RFC 7959
Block-Wise Transfers in the Constrained Application Protocol (CoAP) Errata
2016-08
Proposed Standard RFC
Updated by rfc8323, rfc8323 		1 Alexey Melnikov
40 pages
RFC 8075
Guidelines for Mapping Implementations: HTTP to the Constrained Application Protocol (CoAP)
2017-02
Proposed Standard RFC 		Alexey Melnikov
21 pages
RFC 8132
PATCH and FETCH Methods for the Constrained Application Protocol (CoAP)
2017-04
Proposed Standard RFC 		1 Alexey Melnikov
54 pages
RFC 8323
CoAP (Constrained Application Protocol) over TCP, TLS, and WebSockets
2018-02
Proposed Standard RFC
Updated by rfc8974 		Alexey Melnikov
54 pages
RFC 8428
Sensor Measurement Lists (SenML) Errata
2018-08
Proposed Standard RFC
Updated by rfc9100 		Alexey Melnikov
6 pages
RFC 8516
"Too Many Requests" Response Code for the Constrained Application Protocol
2019-01
Proposed Standard RFC 		Alexey Melnikov
94 pages
RFC 8613
Object Security for Constrained RESTful Environments (OSCORE) Errata
2019-07
Proposed Standard RFC 		Alexey Melnikov
9 pages
RFC 8710
Multipart Content-Format for the Constrained Application Protocol (CoAP)
2020-02
Proposed Standard RFC 		Alexey Melnikov
8 pages
RFC 8768
Constrained Application Protocol (CoAP) Hop-Limit Option
2020-03
Proposed Standard RFC 		Alexey Melnikov
11 pages
RFC 8790
FETCH and PATCH with Sensor Measurement Lists (SenML)
2020-06
Proposed Standard RFC 		Alexey Melnikov
9 pages
RFC 8798
Additional Units for Sensor Measurement Lists (SenML)
2020-06
Proposed Standard RFC 		Alexey Melnikov
20 pages
RFC 8974
Extended Tokens and Stateless Clients in the Constrained Application Protocol (CoAP)
2021-01
Proposed Standard RFC 		Barry Leiba
15 pages
RFC 9039
Uniform Resource Names for Device Identifiers
2021-06
Proposed Standard RFC 		Barry Leiba
7 pages
RFC 9100
Sensor Measurement Lists (SenML) Features and Versions
2021-08
Proposed Standard RFC 		Francesca Palombini
27 pages
RFC 9175
Constrained Application Protocol (CoAP): Echo, Request-Tag, and Token Processing
2022-02
Proposed Standard RFC 		Francesca Palombini
60 pages
RFC 9176
Constrained RESTful Environments (CoRE) Resource Directory
2022-04
Proposed Standard RFC 		Barry Leiba
41 pages
RFC 9177
Constrained Application Protocol (CoAP) Block-Wise Transfer Options Supporting Robust Transmission
2022-03
Proposed Standard RFC 		Francesca Palombini
10 pages
RFC 9193
Sensor Measurement Lists (SenML) Fields for Indicating Data Value Content-Format
2022-06
Proposed Standard RFC 		Francesca Palombini
45 pages
RFC 9254
Encoding of Data Modeled with YANG in the Concise Binary Object Representation (CBOR)
2022-07
Proposed Standard RFC 		Francesca Palombini
21 pages
RFC 9290
Concise Problem Details for Constrained Application Protocol (CoAP) APIs
2022-10
Proposed Standard RFC 		Francesca Palombini
8 pages
RFC 9423
Constrained RESTful Environments (CoRE) Target Attributes Registry
2024-04
Informational RFC 		Robert Wilton
44 pages
RFC 9595
YANG Schema Item iDentifier (YANG SID) Errata
2024-07
Proposed Standard RFC 		Francesca Palombini
23 pages
RFC 9668
Using Ephemeral Diffie-Hellman Over COSE (EDHOC) with the Constrained Application Protocol (CoAP) and Object Security for Constrained RESTful Environments (OSCORE)
2024-11
Proposed Standard RFC 		Paul Wouters
12 pages
RFC 9876
Updates to the IANA Registration Procedures for Constrained Application Protocol (CoAP) Content-Formats
2025-11
Proposed Standard RFC 		Mike Bishop
Related Internet-Drafts and RFCs (3 hits)
47 pages
draft-tiloca-core-oscore-discovery-18
Discovery of OSCORE Groups with the CoRE Resource Directory
2025-09-03
I-D Exists
29 pages
draft-tiloca-core-oscore-piv-enc-01
Stand-in Key Identifier and Encrypted Partial IV in the Constrained Application Protocol (CoAP) OSCORE Option
2025-10-20
I-D Exists
17 pages 2025-07-01
Replaced by draft-gomez-tiptop-coap
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