Codex install

Install TextTree MCP in Codex

Connect TextTree, verify the server-observed MCP connection, then send the first eligible sandbox SMS before choosing paid continuation.

Start install

Direct answer

install TextTree MCP in Codex

Install TextTree in Codex with the documented remote MCP command and a scoped bearer token stored in the local environment. This page owns Codex configuration and troubleshooting, not the broader SMS workflow.

Primary action

codex mcp add texttree https://api.texttree.ai/mcp --header "Authorization: Bearer $TEXTTREE_BEARER_TOKEN"

Codex configuration

Add TextTree as an MCP server

[mcp_servers.texttree]
url = "https://api.texttree.ai/mcp"
headers = { Authorization = "Bearer ${TEXTTREE_BEARER_TOKEN}" }

Expected result

A connected agent with scoped access, activation status, and a path to send the first SMS through TextTree safety and billing gates.

OAuth or token fallback

Codex uses a scoped bearer token fallback until native OAuth handoff is available for the configured client.

Fallback variable: TEXTTREE_BEARER_TOKEN

Requested scopes

MCP read access, explicit execute access for allowed tools, and onboarding status for activation handoff.

Connect and verify

codex mcp list

Server-observed MCP initialize, tool discovery, or resource discovery

Fast Send Sandbox

Eligible accounts can send one constrained first SMS before funding.

Paid continuation

Add balance for continued Fast Send or create Agent Identity for a dedicated number with inbound replies.

Troubleshooting