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All Protocols

Browse all documented protocols across 5 categories and 5 layers. From foundational internet protocols to emerging AI agent communication.

Documented Protocols

ProtocolDescriptionLayerRFC / SpecStatus
HTTP

Hypertext Transfer Protocol

HTTP

Application-layer protocol for transmitting hypermedia documents, such as HTML. Foundation of the World Wide Web.

Layer 1RFC 9110Active

Browse by Category

L1

Internet Protocols

156 protocols · 2,847 codes

L2

Application Protocols

248 protocols · 4,156 codes

L3

Data Formats & Standards

198 protocols · 6,304 codes

L4

AI & Agent Protocols

37 protocols · 381 codes

L5

Future Protocols

23 protocols · 127 codes