Create a store

POST/api/v1/memory/collection

In the SDKs: create_store

Stores are explicit: a store must exist before you write to or read it. Idempotent. Every account starts with a built-in "default" store.

Authentication

Every call carries your API key in an X-API-Key header. Keys are created in the console.

Request body

JSON, required. Out-of-range values are refused with a 400 rather than quietly clamped.

user_id string required

The store to operate on. Stores are explicit: create one first or use the built-in "default".

Returns

The 200 body. Fields nested one level are shown as parent.child.

user_id string

status "exists"

Example

curl -X POST https://api.wontopos.com/api/v1/memory/collection \
  -H "X-API-Key: $WOS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{}'

Status codes

Rate limits per tier and the full status list are in Errors & limits.

In the SDKs

The Python, TypeScript, and Rust SDKs wrap this endpoint so you do not build the request by hand — pip install wontopos, npm i wontopos, or cargo add wontopos, then the method list is on the SDK reference. A coding agent can take the whole API in one file at llms.txt, or over MCP with npx -y wontopos-mcp.

Related

• List stores
• Delete a store