OpenAI Codex
- Website
- https://openai.com/codex
- clientInfo.name
- Codex
- Protocol version
- 2025-06-18
Core Protocol
✓ 0 · ◐ 0 · ✕ 0 · · 3
Server discovery
UnknownMulti round-trip requests
Unknown
Transports
✓ 0 · ◐ 0 · ✕ 0 · · 3
stdio
UnknownHTTP + SSE (deprecated)
UnknownStreamable HTTP
Unknown
Subscriptions
✓ 0 · ◐ 0 · ✕ 0 · · 1
subscriptions/listen
Unknown
Tools
✓ 2 · ◐ 0 · ✕ 0 · · 2
Call tools
Supported- Source
- Source
- Verified
- Provenance
- Automated crawl
List tools
Supported- Source
- Source
- Verified
- Provenance
- Automated crawl
list_changed notifications
UnknownTool annotations
Unknown
Resources
✓ 3 · ◐ 0 · ✕ 0 · · 2
Read resources
SupportedCodex exposes read_mcp_resource to the model and forwards the server name and resource URI to resources/read.
- Source
- Source
- Verified
- Provenance
- Manual
List resources
SupportedCodex exposes list_mcp_resources to the model, supporting a specific server with pagination or listing across accessible servers.
- Source
- Source
- Verified
- Provenance
- Manual
Resource templates
SupportedCodex exposes list_mcp_resource_templates to discover URI templates, supporting a specific server with pagination or listing across accessible servers.
- Source
- Source
- Verified
- Provenance
- Manual
Subscribe to updates
Unknownlist_changed notifications
Unknown
Prompts
✓ 0 · ◐ 0 · ✕ 0 · · 4
Get prompts
UnknownList prompts
UnknownPrompt arguments
Unknownlist_changed notifications
Unknown
Sampling (deprecated)
✓ 0 · ◐ 0 · ✕ 0 · · 2
createMessage
UnknownTool calling in sampling
Unknown
Roots (deprecated)
✓ 0 · ◐ 0 · ✕ 0 · · 1
List roots
Unknown
Elicitation
✓ 1 · ◐ 0 · ✕ 0 · · 1
Elicit user input (form mode)
Supported- Source
- Source
- Verified
- Provenance
- Automated crawl
URL mode elicitation
Unknown
Tasks (extension)
✓ 0 · ◐ 0 · ✕ 0 · · 4
Task-augmented tools/call
Unknowntasks/get
Unknowntasks/update
Unknowntasks/cancel
Unknown
Caching
✓ 0 · ◐ 0 · ✕ 0 · · 1
Cacheable result hints
Unknown
Completions
✓ 0 · ◐ 0 · ✕ 0 · · 1
Argument autocompletion
Unknown
Logging (deprecated)
✓ 0 · ◐ 0 · ✕ 0 · · 1
Receive log messages
Unknown
Authorization
✓ 0 · ◐ 0 · ✕ 0 · · 2
OAuth 2.1 client
Unknown