`ai.subscriptions.register`

Connect an official Codex app-server or unmodified Claude Code runner owned by the signed-in person. Stores its name and model capabilities, never subscription credentials. Human sign-in required.

POST/api/v1/accounting/ai.subscriptions.register

Permissions

accounting:readaccounting:write

Who can call it

admin, finance, contributor

Retries

Idempotency key required

MCP

Not offered over MCP: Choosing and sharing a personal subscription is the signed-in person's explicit choice in Settings or the CLI, never an agent's delegation.

Fields

providerenumRequired
codexclaude-code
labelstringRequired
1–80 characters
modelsarray of objectsRequired
1–32 items
idempotencyKeystringRequired
Any unique text you generate once per intended change, so a retried request only happens once. Send it as the Idempotency-Key header instead if you prefer; if you send both they must match.
8–200 characters

curl https://app.getoatmilk.com/api/v1/accounting/ai.subscriptions.register \
  -H "Authorization: Bearer $OATMILK_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: $(uuidgen)" \
  -d '{
  "provider": "codex",
  "label": "example",
  "models": [
    {
      "modelId": "model_id",
      "efforts": [
        "none"
      ],
      "tools": true,
      "vision": true,
      "json": true
    }
  ]
}'

const response = await fetch("https://app.getoatmilk.com/api/v1/accounting/ai.subscriptions.register", {
  method: "POST",
  headers: {
    Authorization: `Bearer ${process.env.OATMILK_API_KEY}`,
    "Content-Type": "application/json",
    "Idempotency-Key": crypto.randomUUID(),
  },
  body: JSON.stringify({
    "provider": "codex",
    "label": "example",
    "models": [
      {
        "modelId": "model_id",
        "efforts": [
          "none"
        ],
        "tools": true,
        "vision": true,
        "json": true
      }
    ]
  }),
});
const { data, error } = await response.json();
if (!response.ok) throw new Error(`${error.code}: ${error.message}`);
console.log(data);

import os
import uuid

import requests

response = requests.post(
    "https://app.getoatmilk.com/api/v1/accounting/ai.subscriptions.register",
    headers={
        "Authorization": f"Bearer {os.environ['OATMILK_API_KEY']}",
        "Idempotency-Key": str(uuid.uuid4()),
    },
    json={
        "provider": "codex",
        "label": "example",
        "models": [
            {
                "modelId": "model_id",
                "efforts": [
                    "none",
                ],
                "tools": True,
                "vision": True,
                "json": True,
            },
        ],
    },
    timeout=30,
)
payload = response.json()
if not response.ok:
    raise RuntimeError(f"{payload['error']['code']}: {payload['error']['message']}")
print(payload["data"])

Response

{
  "data": { … }
}

Try it

Checks your input with this action’s real schema and answers like the API, with synthetic data. No key needed, and nothing changes.

Input

POST/api/v1/accounting/ai.subscriptions.register

curl https://app.getoatmilk.com/api/v1/accounting/ai.subscriptions.register \
  -H "Authorization: Bearer $OATMILK_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: $(uuidgen)" \
  -d '{
  "provider": "codex",
  "label": "example",
  "models": [
    {
      "modelId": "model_id",
      "efforts": [
        "none"
      ],
      "tools": true,
      "vision": true,
      "json": true
    }
  ]
}'

const response = await fetch("https://app.getoatmilk.com/api/v1/accounting/ai.subscriptions.register", {
  method: "POST",
  headers: {
    Authorization: `Bearer ${process.env.OATMILK_API_KEY}`,
    "Content-Type": "application/json",
    "Idempotency-Key": crypto.randomUUID(),
  },
  body: JSON.stringify({
    "provider": "codex",
    "label": "example",
    "models": [
      {
        "modelId": "model_id",
        "efforts": [
          "none"
        ],
        "tools": true,
        "vision": true,
        "json": true
      }
    ]
  }),
});
const { data, error } = await response.json();
if (!response.ok) throw new Error(`${error.code}: ${error.message}`);
console.log(data);

import os
import uuid

import requests

response = requests.post(
    "https://app.getoatmilk.com/api/v1/accounting/ai.subscriptions.register",
    headers={
        "Authorization": f"Bearer {os.environ['OATMILK_API_KEY']}",
        "Idempotency-Key": str(uuid.uuid4()),
    },
    json={
        "provider": "codex",
        "label": "example",
        "models": [
            {
                "modelId": "model_id",
                "efforts": [
                    "none",
                ],
                "tools": True,
                "vision": True,
                "json": True,
            },
        ],
    },
    timeout=30,
)
payload = response.json()
if not response.ok:
    raise RuntimeError(f"{payload['error']['code']}: {payload['error']['message']}")
print(payload["data"])

Fields

Fields inside models

Example

Try it