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

# `PATCH /v1/me/preferences` — update locale (`en`|`pt-BR`) and/or daily
digest settings. Omitted fields are left unchanged.



## OpenAPI

````yaml https://api.pegana.xyz/openapi.json patch /v1/me/preferences
openapi: 3.1.0
info:
  title: Pegana API
  description: >-
    The peg-risk oracle for Solana. Read real-time peg state, history, alerts,
    and delivery health across 26 active mainnet assets spanning 6 classes —
    LSTs, fiat / CDP / delta-neutral / yield-bearing / FX stables, and a
    leveraged synthetic. Some assets are flagged `monitoring_only` (beta): their
    alerts are live but the calibration is provisional. Public read endpoints
    require no API key but ARE rate-limited per IP (300/min global, 10/min on
    /v1/audit.csv); exceeding the limit returns 429 with a Retry-After header.
    User-scoped /v1/me/* routes require a JWT obtained via Telegram Login. Every
    state transition emits a public receipt at /v1/audit/{id} with the
    methodology version, frozen inputs, and an on-chain SPL Memo commit (SAS
    deferred per ADR-0004 — SPL Memo gives 90% of the value). EVERY error
    response across the API is JSON — the envelope is `{error, message, asset?}`
    (the `ApiError` schema); branch on the stable `error` code, never on
    `message`. Malformed request bodies surface as `{error:"invalid_body"}`. Any
    endpoint may also return 500 `{error:"internal"}` on an unexpected server
    error.
  contact:
    name: Rafael Souza
    email: raffxweb3@gmail.com
  license:
    name: MIT
    identifier: MIT
  version: 0.1.0
servers:
  - url: https://api.pegana.xyz
    description: Production
security: []
tags:
  - name: Health
    description: Liveness and readiness probes
  - name: Assets
    description: Public read access to asset state, history, and metadata
  - name: Alerts
    description: Global feed of state transitions
  - name: Stats
    description: Aggregate counters and delivery health
  - name: Auth
    description: Telegram Login Widget → JWT
  - name: Me
    description: Authenticated user profile and preferences
  - name: Subscriptions
    description: User alert subscriptions
  - name: Webhooks
    description: User-managed Ed25519-signed webhooks
  - name: WebSocket
    description: Live state stream
  - name: audit
    description: >-
      Public receipts for alerts — methodology version, inputs frozen, replay
      bundles. All endpoints public, no auth, cacheable. ADR-0006 four-state
      response on /v1/audit/:id (200/202/404/410); ADR-0014 bounds (90-day max,
      100-row max, 50k-row cap).
  - name: methodology
    description: >-
      Public lifecycle status of the active methodology — version + status
      (active/deprecated/broken) + optional fix_url when broken. Consumed by
      web/app/api/methodology to power the home-page trust strip.
  - name: peg
    description: >-
      Mint-keyed peg-signal feed for tokens.xyz / aggregator consumption.
      Public, no auth, cacheable. Honest beta status via `calibration` +
      `monitoring_only`; freshness via `as_of` + `stale`.
paths:
  /v1/me/preferences:
    patch:
      tags:
        - Me
      summary: |-
        `PATCH /v1/me/preferences` — update locale (`en`|`pt-BR`) and/or daily
        digest settings. Omitted fields are left unchanged.
      operationId: preferences
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/PreferencesPatch'
        required: true
      responses:
        '204':
          description: Preferences updated
        '400':
          description: Invalid locale or digest_hour_utc out of 0..23
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiError'
        '401':
          description: Caller is not authenticated
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiError'
      security:
        - telegram_jwt: []
components:
  schemas:
    PreferencesPatch:
      type: object
      properties:
        digest_enabled:
          type:
            - boolean
            - 'null'
        digest_hour_utc:
          type:
            - integer
            - 'null'
          format: int32
        locale:
          type:
            - string
            - 'null'
    ApiError:
      type: object
      required:
        - error
        - message
      properties:
        asset:
          type:
            - string
            - 'null'
          description: The offending asset symbol, present only for asset-scoped errors.
        error:
          type: string
          description: Stable, machine-readable code. Branch on this, never on `message`.
        message:
          type: string
          description: >-
            Human-readable explanation. NOT stable — for humans/logs; do not
            parse.
  securitySchemes:
    telegram_jwt:
      type: http
      scheme: bearer
      bearerFormat: JWT
      description: >-
        Session JWT issued by `POST /v1/auth/telegram` (Telegram Login Widget)
        or `POST /v1/auth/magic/consume`. Send as `Authorization: Bearer <jwt>`.

````