> ## Documentation Index
> Fetch the complete documentation index at: https://docs.plungeai.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Remember a fact

> Remember a fact.


## OpenAPI

```yaml openapi.json post /v1/memory/remember
openapi: 3.1.0
info:
  title: Ocean One API
  version: 2.3.1
servers:
  - url: https://api.plungeai.com
paths:
  /v1/memory/remember:
    post:
      operationId: post-v1-memory-remember
      tags:
        - Memory
      summary: Remember a fact
      description: 'Adds one entry to your MEMORY store (or your USER profile with `scope: "user"`). Saving text that is already stored is a 200 no-op. A refused write (the store is full, or the text matches a threat pattern) is 422 memory_rejected with the current entries to consolidate.'
      security:
        - ozkBearer: []
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
                - text
              properties:
                text:
                  type: string
                  minLength: 1
                  maxLength: 65536
                scope:
                  type: string
                  enum:
                    - memory
                    - user
                  default: memory
                format:
                  type: string
                  enum:
                    - json
                    - yaml
                    - markdown
                    - text
                  description: "Response format override (precedence: this field → Accept header → mirror of the request Content-Type). Default json. yaml = the envelope with Markdown as block scalars; markdown = the same result the MCP plane renders; text = the bare result content. An unknown value → 400 invalid_format."
      responses:
        "200":
          description: "The same text was already stored: nothing was added, the existing entry comes back. Response format negotiates via the `format` field, an Accept header (application/json, text/yaml, text/markdown, text/plain), or the request Content-Type mirror; default JSON."
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/MemoryEntry"
            text/yaml:
              schema:
                type: string
            text/markdown:
              schema:
                type: string
            text/plain:
              schema:
                type: string
        "201":
          description: Saved. Response format negotiates via the `format` field, an Accept header (application/json, text/yaml, text/markdown, text/plain), or the request Content-Type mirror; default JSON.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/MemoryEntry"
            text/yaml:
              schema:
                type: string
            text/markdown:
              schema:
                type: string
            text/plain:
              schema:
                type: string
        "400":
          description: invalid_json — body is not valid JSON
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/Error"
        "401":
          description: unauthorized — missing, invalid or revoked ozk_ key
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/Error"
        "404":
          description: "not_found — no route for this method on this path: every other method answers it"
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/Error"
        "422":
          description: invalid_params (text or scope) · memory_rejected (store full or blocked text; carries current_entries)
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/Error"
components:
  schemas:
    Error:
      type: object
      description: Standard error envelope. Every error response also carries an `X-Error-Code` response header equal to error.code, so a client branches on the header regardless of the negotiated body format (json | yaml | markdown | text). When the request created an execution, the `X-Execution-Id` response header is also set. Errors follow the negotiated format like success bodies.
      properties:
        error:
          type: object
          properties:
            code:
              type: string
            message:
              type: string
            connect:
              type: object
              description: "On a 424 connection_required / credential_required: where the missing connection is made."
              properties:
                provider:
                  type: string
                method:
                  type: string
                  enum:
                    - oauth
                    - api_key
                    - wallet
                link:
                  type: string
                  example: POST /v1/connections/stripe/link
          required:
            - code
            - message
          additionalProperties: true
      required:
        - error
    MemoryEntry:
      type: object
      description: One long-term memory entry. The id is a digest of the store and the text, stable between reads.
      properties:
        id:
          type: string
          example: mem_3f9a1c2b7d40
        scope:
          type: string
          enum:
            - memory
            - user
          description: memory = your notes; user = your profile
        text:
          type: string
      required:
        - id
        - scope
        - text
  securitySchemes:
    ozkBearer:
      type: http
      scheme: bearer
      description: "ozk_ platform API key (Authorization: Bearer ozk_…)"
```