API access (401) and "no_matching_rule" error
Resolved 💬 8 comments Opened Jun 22, 2026 by adulau Closed Jun 25, 2026
💡 Likely answer: A maintainer (efrazer-oai, contributor)
responded on this thread — see the highlighted reply below.
What version of Codex CLI is running?
codex-cli 0.141.0
What subscription do you have?
Business
Which model were you using?
gpt-5.5
What platform is your computer?
_No response_
What terminal emulator and version are you using (if applicable)?
Linux 6.8.0-124-generic x86_64 x86_64
Codex doctor report
{
"schemaVersion": 1,
"generatedAt": "1782110794s since unix epoch",
"overallStatus": "warning",
"codexVersion": "0.141.0",
"checks": {
"app_server.status": {
"id": "app_server.status",
"category": "app-server",
"status": "ok",
"summary": "background server is not running",
"details": {
"control socket": "/home/adulau/.codex/app-server-control/app-server-control.sock",
"daemon state dir": "/home/adulau/.codex/app-server-daemon",
"mode": "ephemeral",
"pid file": "/home/adulau/.codex/app-server-daemon/app-server.pid (missing)",
"settings": "/home/adulau/.codex/app-server-daemon/settings.json (missing)",
"status": "not running",
"update-loop pid file": "/home/adulau/.codex/app-server-daemon/app-server-updater.pid (missing)"
},
"remediation": null,
"durationMs": 0
},
"auth.credentials": {
"id": "auth.credentials",
"category": "auth",
"status": "ok",
"summary": "auth is configured",
"details": {
"auth file": "/home/adulau/.codex/auth.json",
"auth storage mode": "File",
"stored API key": "true",
"stored ChatGPT tokens": "false",
"stored agent identity": "false",
"stored auth mode": "api_key"
},
"remediation": null,
"durationMs": 0
},
"config.load": {
"id": "config.load",
"category": "config",
"status": "ok",
"summary": "config loaded",
"details": {
"CODEX_HOME": "/home/adulau/.codex",
"config.toml": "/home/adulau/.codex/config.toml",
"config.toml parse": "ok",
"cwd": "/home/adulau/git/fanything",
"enabled feature flags": "shell_tool, unified_exec, shell_snapshot, terminal_resize_reflow, sqlite, hooks, enable_request_compression, multi_agent, apps, tool_suggest, plugins, in_app_browser, browser_use, browser_use_external, computer_use, plugin_sharing, image_generation, skill_mcp_dependency_install, mentions_v2, steer, guardian_approval, goals, collaboration_modes, tool_call_mcp_elicitation, personality, fast_mode, tui_app_server, remote_compaction_v2, workspace_dependencies",
"feature flag overrides": "none",
"feature flags enabled": "29",
"log dir": "/home/adulau/.codex/log",
"mcp servers": "0",
"model": "gpt-5.5",
"model provider": "openai",
"sqlite home": "/home/adulau/.codex"
},
"remediation": null,
"durationMs": 0
},
"git.environment": {
"id": "git.environment",
"category": "git",
"status": "ok",
"summary": "git version 2.34.1",
"details": {
".git entry": "directory",
"PATH git #1": "/usr/bin/git",
"PATH git #2": "/bin/git",
"PATH git entries": "2",
"git branch": "main",
"git build options": "git version 2.34.1; cpu: x86_64; no commit associated with this build; sizeof-long: 8; sizeof-size_t: 8; shell-path: /bin/sh",
"git exec path": "/usr/lib/git-core",
"git version": "git version 2.34.1",
"repo detected": "true",
"repo root": "/home/adulau/git/fanything",
"selected git": "/usr/bin/git"
},
"remediation": null,
"durationMs": 146
},
"installation": {
"id": "installation",
"category": "install",
"status": "ok",
"summary": "installation looks consistent",
"details": {
"PATH codex #1": "/home/adulau/.local/bin/codex",
"PATH codex #2": "/home/adulau/.local/bin//codex",
"PATH codex #3": "/home/adulau/.local/bin/codex",
"PATH codex #4": "/home/adulau/.local/bin//codex",
"PATH codex #5": "/home/adulau/.local/bin/codex",
"PATH codex entries": "5",
"current executable": "/home/adulau/.codex/packages/standalone/releases/0.141.0-x86_64-unknown-linux-musl/bin/codex",
"install context": "standalone (unix, package /home/adulau/.codex/packages/standalone/releases/0.141.0-x86_64-unknown-linux-musl, bin /home/adulau/.codex/packages/standalone/releases/0.141.0-x86_64-unknown-linux-musl/bin, resources /home/adulau/.codex/packages/standalone/releases/0.141.0-x86_64-unknown-linux-musl/codex-resources, path /home/adulau/.codex/packages/standalone/releases/0.141.0-x86_64-unknown-linux-musl/codex-path)",
"managed by bun": "false",
"managed by npm": "false",
"managed package root": "not set"
},
"remediation": null,
"durationMs": 1
},
"mcp.config": {
"id": "mcp.config",
"category": "mcp",
"status": "ok",
"summary": "no MCP servers configured",
"details": {},
"remediation": null,
"durationMs": 0
},
"network.env": {
"id": "network.env",
"category": "network",
"status": "ok",
"summary": "network-related environment looks readable",
"details": {
"proxy env vars": "none"
},
"remediation": null,
"durationMs": 0
},
"network.provider_reachability": {
"id": "network.provider_reachability",
"category": "reachability",
"status": "ok",
"summary": "active provider endpoints are reachable over HTTP",
"details": {
"openai API base URL": "https://api.openai.com/v1 reachable (HTTP 404)",
"openai API route probe": "https://api.openai.com/v1/<redacted> route exists (HTTP 401)",
"reachability mode": "API key auth"
},
"remediation": null,
"durationMs": 846
},
"network.websocket_reachability": {
"id": "network.websocket_reachability",
"category": "websocket",
"status": "warning",
"summary": "Responses WebSocket failed; HTTPS fallback may still work",
"details": {
"DNS": "2 IPv4, 0 IPv6, first IPv4",
"auth mode": "api_key",
"connect timeout": "15000 ms",
"endpoint": "wss://api.openai.com/v1/<redacted>",
"handshake transport error": "http 401 Unauthorized: Some(\"{\\n \\\"error\\\": {\\n \\\"message\\\": \\\"Unauthorized\\\",\\n \\\"type\\\": \\\"rejected_by_access_enforcement\\\",\\n \\\"code\\\": \\\"no_matching_rule\\\",\\n \\\"param\\\": null\\n },\\n \\\"status\\\": 401\\n}\")",
"model provider": "openai",
"provider name": "OpenAI",
"proxy env vars": "none",
"supports websockets": "true",
"wire API": "responses"
},
"remediation": "Check proxy, VPN, firewall, DNS, custom CA, and WebSocket policy support.",
"durationMs": 717
},
"runtime.provenance": {
"id": "runtime.provenance",
"category": "runtime",
"status": "ok",
"summary": "running standalone on linux-x86_64",
"details": {
"commit": "unknown",
"current executable": "/home/adulau/.codex/packages/standalone/releases/0.141.0-x86_64-unknown-linux-musl/bin/codex",
"install method": "standalone (unix, package /home/adulau/.codex/packages/standalone/releases/0.141.0-x86_64-unknown-linux-musl, bin /home/adulau/.codex/packages/standalone/releases/0.141.0-x86_64-unknown-linux-musl/bin, resources /home/adulau/.codex/packages/standalone/releases/0.141.0-x86_64-unknown-linux-musl/codex-resources, path /home/adulau/.codex/packages/standalone/releases/0.141.0-x86_64-unknown-linux-musl/codex-path)",
"platform": "linux-x86_64",
"version": "0.141.0"
},
"remediation": null,
"durationMs": 0
},
"runtime.search": {
"id": "runtime.search",
"category": "search",
"status": "ok",
"summary": "search is OK (bundled)",
"details": {
"search command": "/home/adulau/.codex/packages/standalone/releases/0.141.0-x86_64-unknown-linux-musl/codex-path/rg",
"search command readiness": "file exists",
"search provider": "bundled"
},
"remediation": null,
"durationMs": 0
},
"sandbox.helpers": {
"id": "sandbox.helpers",
"category": "sandbox",
"status": "ok",
"summary": "sandbox configuration is readable",
"details": {
"approval policy": "OnRequest",
"codex-linux-sandbox helper": "/home/adulau/.codex/tmp/arg0/codex-arg0FWopOO/codex-linux-sandbox",
"execve wrapper helper": "/home/adulau/.codex/tmp/arg0/codex-arg0FWopOO/codex-execve-wrapper",
"filesystem sandbox": "restricted",
"network sandbox": "restricted"
},
"remediation": null,
"durationMs": 0
},
"state.paths": {
"id": "state.paths",
"category": "state",
"status": "ok",
"summary": "state paths and databases are inspectable",
"details": {
"CODEX_HOME": "/home/adulau/.codex (dir)",
"active rollout files": "9 files, 359180 total bytes, 39908 average bytes",
"archived rollout files": "0 files, 0 total bytes, 0 average bytes",
"goals DB": "/home/adulau/.codex/goals_1.sqlite (file)",
"goals DB integrity": "ok",
"log DB": "/home/adulau/.codex/logs_2.sqlite (file)",
"log DB integrity": "ok",
"log dir": "/home/adulau/.codex/log (missing)",
"memories DB": "/home/adulau/.codex/memories_1.sqlite (file)",
"memories DB integrity": "ok",
"sqlite home": "/home/adulau/.codex (dir)",
"standalone release cache": "1 entries in /home/adulau/.codex/packages/standalone/releases",
"state DB": "/home/adulau/.codex/state_5.sqlite (file)",
"state DB integrity": "ok"
},
"remediation": null,
"durationMs": 183
},
"state.rollout_db_parity": {
"id": "state.rollout_db_parity",
"category": "threads",
"status": "ok",
"summary": "rollout files and state DB thread inventory agree",
"details": {
"default model provider": "openai",
"rollout DB active files": "9",
"rollout DB active rows": "9",
"rollout DB archive mismatches": "0",
"rollout DB archived files": "0",
"rollout DB archived rows": "0",
"rollout DB duplicate DB paths": "0",
"rollout DB duplicate rollout thread ids": "0",
"rollout DB malformed file names": "0",
"rollout DB missing active rows": "0",
"rollout DB missing archived rows": "0",
"rollout DB model providers": "openai=9",
"rollout DB rows": "9",
"rollout DB scan cap reached": "false",
"rollout DB scan errors": "0",
"rollout DB sources": "cli=9",
"rollout DB stale rows": "0"
},
"remediation": null,
"durationMs": 164
},
"system.environment": {
"id": "system.environment",
"category": "system",
"status": "ok",
"summary": "OS language en-US",
"details": {
"EDITOR": "not set",
"LANG": "en_US.UTF-8",
"VISUAL": "not set",
"os": "Ubuntu 22.4.0 (jammy) [64-bit]",
"os language": "en-US",
"os type": "Ubuntu",
"os version": "22.4.0"
},
"remediation": null,
"durationMs": 85
},
"terminal.env": {
"id": "terminal.env",
"category": "terminal",
"status": "ok",
"summary": "terminal metadata was detected",
"details": {
"COLORTERM": "truecolor",
"DISPLAY": "present",
"color output": "enabled",
"effective locale": "en_US.UTF-8",
"stderr is terminal": "true",
"stdin is terminal": "true",
"stdout is terminal": "true",
"terminal": "GNOME Terminal",
"terminal size": "425x82"
},
"remediation": null,
"durationMs": 0
},
"terminal.title": {
"id": "terminal.title",
"category": "title",
"status": "ok",
"summary": "terminal title default",
"details": {
"terminal title activity": "true",
"terminal title items": "activity, project-name",
"terminal title project source": "git repo root",
"terminal title project value": "fanything",
"terminal title source": "default"
},
"remediation": null,
"durationMs": 0
},
"updates.status": {
"id": "updates.status",
"category": "updates",
"status": "ok",
"summary": "update configuration is locally consistent",
"details": {
"cached latest version": "0.141.0",
"check for update on startup": "true",
"last checked at": "2026-06-22T06:29:01.241746487Z",
"latest version": "0.141.0",
"latest version status": "current version is not older",
"update action": "standalone installer",
"version cache": "/home/adulau/.codex/version.json"
},
"remediation": null,
"durationMs": 129
}
}
}What issue are you seeing?
API access/Login failed with a business using a personal access token with no_matching_rule.
What steps can reproduce the bug?
run codex and try to run any command
What is the expected behavior?
Being able to login
Additional information
_No response_
8 Comments
Same symptom on a Business-plan account (gpt-5.5). On the same account and endpoint, an OAuth login works, but an opaque PAT (at-…) returns 401 with body type: rejected_by_access_enforcement, code: no_matching_rule. Adding the official CLI's headers and originator to the PAT request doesn't change it. This PAT worked until a few days ago ago, so it appears to be a recent change. Is PAT-based Codex access intentionally being restricted in favor of OAuth, or is this a regression? codex doctor's network remediation is misleading here.
same here, worked until yesterday and started happening today
Same
rejected_by_access_enforcement/no_matching_ruleon a Business-plan account (codex-cli 0.142.0, gpt-5.5) — PAT (at-…) auth broke for me a few days ago and a freshly-minted token gets the same 401. The response carriesx-openai-internal-caller: unknown_through_ide.The OAuth workaround doesn't work in my case.
codex loginsends me toauth.openai.com, which forces phone verification — but my phone number is already linked to my personal OpenAI account, so it returns "phone number taken" and I can't complete sign-in for my work/Business account. So I'm fully locked out: PAT is rejected server-side, and OAuth dead-ends at a phone-verification collision because the number is tied to a different (personal) account.Two questions for the maintainers:
codex doctor's network remediation is misleading here — the endpoint is reachable; it's purely an auth/access-enforcement rejection.I have the exact same problem. Login with Device Code works but is inconvenient for my setup.
Update: The issue was solved for me as mysteriously as it appeared. websocket does not show a warning in
codex doctoranymore. I guess it was fixed on the backend?This should now be fixed, apologies for the error.
The issue still persists with the latest version of codex
v0.142.2.~~~
unexpected status 401 Unauthorized: Unauthorized, url: https://api.openai.com/v1/responses, cf-ray: a116970eaff7ba60-BRU, request id: req_b145775e30b34a24b60d8e126ec647d2, auth error: 401, auth error code:
no_matching_rule
~~~
This is working very inconsistently. Subsequent calls pass and fail seemingly randomly.
It's worked for me:
~/.codex/auth.json
from
to