Migrate

 from openai import OpenAI

 client = OpenAI(
-    api_key=os.environ["OPENAI_API_KEY"],
+    base_url="https://api.routerplus.com/v1",
+    api_key=os.environ["TM_API_KEY"],
 )

 import OpenAI from "openai";

 const client = new OpenAI({
-  apiKey: process.env.OPENAI_API_KEY,
+  baseURL: "https://api.routerplus.com/v1",
+  apiKey: process.env.TM_API_KEY,
 });

client.chat.completions.create(
    model="claude-sonnet-4-5",  # Anthropic model, OpenAI wire — the gateway translates
    stream=True,
    messages=[{"role": "user", "content": "hello"}],
)

[model_providers.tm]
name = "RouterPlus"
base_url = "https://api.routerplus.com/v1"
env_key = "TM_API_KEY"
wire_api = "chat"

[profiles.tm]
model_provider = "tm"
model = "gpt-4o-mini"

 from anthropic import Anthropic

 client = Anthropic(
-    api_key=os.environ["ANTHROPIC_API_KEY"],
+    base_url="https://api.routerplus.com",
+    api_key=os.environ["TM_API_KEY"],
 )

ANTHROPIC_BASE_URL=https://api.routerplus.com ANTHROPIC_AUTH_TOKEN=$TM_API_KEY claude

 client = OpenAI(
-    base_url="https://openrouter.ai/api/v1",
-    api_key=os.environ["OPENROUTER_API_KEY"],
+    base_url="https://api.routerplus.com/v1",
+    api_key=os.environ["TM_API_KEY"],
 )

 completion = client.chat.completions.create(
-    model="anthropic/claude-sonnet-4.5",
+    model="claude-sonnet-4-5",
     stream=True,
     messages=[{"role": "user", "content": "hello"}],
 )

Migrate this project to RouterPlus.

1. If TM_API_KEY is not set, have me open https://app.routerplus.com/signup and complete
   Clerk authentication and email verification in the browser. Existing customers
   sign in at https://app.routerplus.com/login and create a key at https://app.routerplus.com/console/keys.
   Save the key as TM_API_KEY (env var and .env; never commit it). Continue once
   the key is available; there is no programmatic signup endpoint.

2. Find every LLM client in this codebase and repoint it:
   - OpenAI SDK / any OpenAI-compatible client:
       base_url -> "https://api.routerplus.com/v1", api_key -> TM_API_KEY
   - Anthropic SDK:
       base_url -> "https://api.routerplus.com", api key -> TM_API_KEY
   - Claude Code:
       run with ANTHROPIC_BASE_URL=https://api.routerplus.com ANTHROPIC_AUTH_TOKEN=$TM_API_KEY
   - Codex CLI (only a release from before February 2026; current Codex calls only
     the Responses API, which the gateway does not implement):
       add a [model_providers.tm] block with base_url "https://api.routerplus.com/v1",
       env_key "TM_API_KEY", wire_api "chat", and a [profiles.tm] using it.
   - OpenRouter clients: also strip "author/" prefixes and ":variant" suffixes
     from model ids, and remove route/models/transforms request fields. Inside a
     "provider" object keep only: only, ignore, order, upstream, allow_fallbacks,
     require_parameters; remove the rest (sort, max_price, ...).
   - Raw HTTP: change the host to https://api.routerplus.com and the bearer/x-api-key to TM_API_KEY.

3. Check every model id against https://app.routerplus.com/api/models.json and substitute the
   closest listed id where needed. Never invent an id: unlisted models return 404.

4. Run one real streamed test call per repointed client and show me each response's
   final usage object (it must contain "cost").

5. Keep the diff minimal. Do not refactor unrelated code.

curl -N https://api.routerplus.com/v1/chat/completions \
  -H "Authorization: Bearer $TM_API_KEY" \
  -H "content-type: application/json" \
  -d '{"model":"claude-haiku-4-5","stream":true,"max_tokens":40,"messages":[{"role":"user","content":"Reply with exactly: MIGRATED"}]}'

curl -s -H "Authorization: Bearer $TM_API_KEY" https://api.routerplus.com/v1/usage