Codex + MonthlyBring your Monthly accounts, publishing formats and post status into Codex. One connection. Only the access you choose.
Codex 
MonthlyWhich of my connected accounts are ready for my next post?
Your selected X account is ready.
Connect your social accounts in Monthly first. Then add Monthly to the agent you already use.
Run the commands below. If Monthly is already configured, inspect that entry first so you do not create a duplicate.
https://app.monthly.so/mcpcodex mcp add monthly --url https://app.monthly.so/mcp
codex mcp login monthly --scopes accounts:read,posts:read --oauth-client-registration dcrUse your own Monthly account. Keep accounts:read and posts:read selected; leave drafting/media and scheduling/cancellation off. Select only your intended accounts.
Ask Codex to list the accounts this Monthly connection can access. The result should match your selection. No post needs to be created or published.
No API token or shared client secret is needed for this OAuth flow.
Use your installed Codex CLI and your existing Monthly account. OAuth opens Monthly in your browser; no API token or shared client secret is needed.
https://app.monthly.so/mcpcodex mcp add monthly --url https://app.monthly.so/mcp
codex mcp login monthly --scopes accounts:read,posts:read --oauth-client-registration dcrRun the commands above. If monthly already exists, inspect it with codex mcp get monthly instead of adding a duplicate. The login command pins this connection to the two read permissions.
Sign in to your own Monthly account. On the consent page, keep the two read permissions selected and choose only your own accounts that you intend to share. Allow selected access, then return to the terminal. You do not need access to Monthly’s test account.
In ~/.codex/config.toml, merge the fields below into the existing monthly entry. Preserve other servers. The tool allowlist adds a client-side limit; Monthly enforces the OAuth scope and selected accounts.
Start a fresh Codex session and inspect /mcp. Send the read-only check below. The result must show only your selected account. No draft, upload or schedule is part of this setup.
[mcp_servers.monthly]
url = "https://app.monthly.so/mcp"
scopes = ["accounts:read", "posts:read"]
enabled_tools = ["get_profile", "get_capabilities", "list_accounts", "list_posts", "get_post"]Leave the advanced OAuth resource override unset so Codex uses Monthly’s discovery. If using --no-browser, paste the complete return URL only into your own waiting Codex terminal, never into a conversation or configuration file.
Client instructions checked October 26, 2026. Codex MCP documentation. Production Codex OAuth and four direct read-tool checks passed on October 26 through the installed client, with only @TryMonthly and accounts:read/posts:read. No model turn or write tool was used. Drafting, scheduling and client revocation/reconnection remain unverified.
CodexCopy a prompt after connecting Monthly, or open it in Codex with one click — automatically typed in, waiting for you to press Enter. Opens the desktop app. Install it and connect Monthly there first; your browser may ask you to confirm opening it.
See exactly which accounts this connection can access.
Use Monthly to show the social accounts I’ve allowed this connection to access and which are ready to publish. Read only; don’t create or schedule anything.
Know what needs reconnecting before you begin.
Check my selected Monthly accounts for connection issues. Tell me which need reconnecting and what to do next. Don’t change anything.
Check text lengths, image limits and supported formats.
Which formats can my selected Monthly accounts use? Show text lengths, image limits and file sizes. Read only; don’t upload or create anything.
Bring connection-created drafts back into view.
Show drafts created by this Monthly connection with their review links and approval status. Don’t edit, approve or schedule anything.
Read actual delivery status, without guessing.
Did posts created by this Monthly connection publish? Show their observed status and any delivery receipt IDs. Don’t retry or cancel anything.
Keep the agent’s access easy to understand.
What is this Monthly connection allowed to do, and which accounts can it access? Read only; don’t request or change any permissions.
Yes. Connect your social accounts in Monthly, then sign in to your own Monthly account during your agent’s OAuth flow. Each customer gets their own scoped connection; you never use another customer’s login or social credentials.
Only the accounts you select during consent and the permissions you allow. Post reads are limited to posts created by that same connection. Your social access tokens and passwords stay in Monthly.
The read-only setup on this page cannot create or schedule posts. If you later grant drafting and scheduling permissions, every exact draft revision still needs your approval inside Monthly before it can be scheduled. Editing a draft clears its approval.
Compatible MCP clients use OAuth sign-in and automatic client registration. You do not need to copy a Monthly API token or a shared client secret. Your agent’s account or subscription requirements are separate.
A client may need to renew authorization or reconnect an expired account. Use the normal sign-in flow and check the permissions again. Never disable authentication or share a social password with an agent.
Open Monthly Settings → AI agents & API and revoke that connection. Revocation stops further agent actions. It does not cancel posts already in your queue; review those separately.
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