> ## Documentation Index
> Fetch the complete documentation index at: https://docs.0xinsider.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Get Event Replay Since

> Returns durable public whale-trade intelligence events strictly after an opaque cursor backed by whale_alerts.id. This is a separate API-key contract from the browser/session /api/events/feed stream: browser-only and private alert, following, radar, and position patch events are excluded until they have a durable public outbox.

Replay feed events you missed during a disconnection. Pass the timestamp (or event ID) of the last event you processed, and the response is everything after it.

```bash theme={null}
curl -H "Authorization: Bearer $OXINSIDER_API_KEY" \
  "https://api.0xinsider.com/api/v1/events/feed/since?since=2026-05-08T12:34:56Z&limit=100"
```

Cursor-paginated. Catch a worker back up after a crash or deploy without back-filling from the live feed. Pair with [Webhooks](/api-reference/endpoint/list-webhooks) if you'd rather not poll at all.


## OpenAPI

````yaml GET /api/v1/events/feed/since
openapi: 3.1.0
info:
  title: 0xinsider API
  description: >-
    Find your edge on Polymarket and Kalshi. Every wallet graded, every trade
    scored, every outlier flagged. API exposes trader grades, whale trades,
    smart money signals, and insider detection for AI agents, trading bots, and
    research tools. Normal API requests use a 30-second server timeout that
    returns HTTP 408 Request Timeout with an empty body when exceeded. Public
    REST /api/v1/* endpoints, excluding /api/v1/mcp, use Bearer-token based
    non-credentialed browser CORS: any Origin may call with Authorization,
    Content-Type, If-None-Match, Idempotency-Key, and Mcp-Session-Id request
    headers. Remote MCP at /api/v1/mcp is non-credentialed, but still validates
    Origin against the 0xinsider/localhost allowlist per MCP Streamable HTTP
    DNS-rebinding guidance. Successful browser CORS preflight responses
    advertise Access-Control-Max-Age: 86400. Browser JavaScript may read
    X-RateLimit-Limit, X-RateLimit-Remaining, X-RateLimit-Reset, Retry-After,
    ETag, X-Request-Id, X-Request-Cost, X-Batch-RateLimit-Limit,
    X-Batch-RateLimit-Remaining, X-Batch-RateLimit-Reset, Mcp-Session-Id, and
    X-Mcp-Error-Code response headers. Credentialed first-party routes such as
    /api/keys, /api/billing, and auth endpoints remain restricted to configured
    0xinsider origins.
  version: 1.0.0
  contact:
    name: 0xinsider
    email: support@0xinsider.com
    url: https://0xinsider.com
servers:
  - url: https://api.0xinsider.com
    description: >-
      Production (live data). Authenticate with a live key (oxi_sk_live_...);
      requires an active Insider subscription.
  - url: https://api.0xinsider.com
    description: >-
      Sandbox / test mode (deterministic fixture data, no live rows).
      Authenticate with a test key (oxi_sk_test_...) on a free account. Same
      base URL and paths as production: the key class selects live vs sandbox.
      Test keys are billing-exempt, served from a fixed fixture dataset, and
      never read live data or persist writes; webhooks, usage, and MCP responses
      show the response shape only.
security:
  - bearerAuth: []
tags:
  - name: Traders
    description: Trader intelligence, batch lookups, timelines, and export readiness.
  - name: Positions
    description: Current prediction-market position snapshots from backend-owned mirrors.
  - name: Large Positions
    description: Largest current open positions from graded traders (Polymarket-only).
  - name: Whale Trades
    description: Recent and historical large trade intelligence.
  - name: Leaderboard
    description: Ranked trader discovery and category/strategy leaderboards.
  - name: Markets
    description: Market search, discovery, snapshots, and smart-score flow.
  - name: Insider Radar
    description: Suspicious trading pattern detection.
  - name: Events
    description: Durable public event replay streams.
  - name: Streaming
    description: Resumable real-time Server-Sent Events stream of live feed envelopes.
  - name: Webhooks
    description: Signed builder webhook destinations and delivery controls.
  - name: Usage
    description: Developer API budget and usage introspection.
  - name: System
    description: Health and operational status checks.
  - name: MCP
    description: Remote Model Context Protocol transport.
  - name: Reports
    description: Daily, weekly, monthly, and trader export report snapshots.
paths:
  /api/v1/events/feed/since:
    get:
      tags:
        - Events
      summary: Replay public whale-trade intelligence events
      description: >-
        Returns durable public whale-trade intelligence events strictly after an
        opaque cursor backed by whale_alerts.id. This is a separate API-key
        contract from the browser/session /api/events/feed stream: browser-only
        and private alert, following, radar, and position patch events are
        excluded until they have a durable public outbox.
      operationId: getEventReplaySince
      parameters:
        - name: cursor
          in: query
          required: false
          description: >-
            Opaque event replay cursor returned as next_cursor by a prior
            response. The cursor maps to whale_alerts.id and is valid across
            backend replicas. Omit to fetch the latest durable public suffix.
          schema:
            type: string
        - name: limit
          in: query
          required: false
          description: Maximum durable public whale-trade events to return.
          schema:
            type: integer
            minimum: 1
            maximum: 100
            default: 50
      responses:
        '200':
          description: Public event replay window
          content:
            application/json:
              schema:
                type: object
                required:
                  - object
                  - data
                  - has_more
                  - next_cursor
                  - meta
                properties:
                  object:
                    type: string
                    const: event_replay
                  data:
                    type: array
                    items:
                      $ref: '#/components/schemas/EventReplayEvent'
                  has_more:
                    type: boolean
                  next_cursor:
                    type: string
                  meta:
                    $ref: '#/components/schemas/EventReplayMeta'
              examples:
                success:
                  summary: Successful response
                  value:
                    object: events
                    data: {}
                    meta:
                      request_id: req_example
                      cached: false
          headers:
            X-RateLimit-Limit:
              $ref: '#/components/headers/X-RateLimit-Limit'
            X-RateLimit-Remaining:
              $ref: '#/components/headers/X-RateLimit-Remaining'
            X-RateLimit-Reset:
              $ref: '#/components/headers/X-RateLimit-Reset'
            X-Request-Id:
              $ref: '#/components/headers/X-Request-Id'
        '400':
          $ref: '#/components/responses/BadRequest'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '402':
          $ref: '#/components/responses/SubscriptionRequired'
        '403':
          $ref: '#/components/responses/Forbidden'
        '408':
          $ref: '#/components/responses/RequestTimeout'
        '423':
          $ref: '#/components/responses/Locked'
        '429':
          $ref: '#/components/responses/RateLimited'
        '503':
          $ref: '#/components/responses/RateLimitUnavailable'
      x-codeSamples:
        - lang: curl
          label: cURL
          source: |-
            curl -sS \
              -H 'Authorization: Bearer $OXI_SK' \
              'https://api.0xinsider.com/api/v1/events/feed/since'
components:
  schemas:
    EventReplayEvent:
      type: object
      required:
        - id
        - type
        - cursor
        - sequence
        - published_at
        - payload
        - source
        - freshness
      properties:
        id:
          type: string
          description: >-
            Opaque event ID; currently identical to cursor for the
            whale_alerts.id sequence.
        type:
          type: string
          enum:
            - whale_trades_inserted
        cursor:
          type: string
          description: Cursor positioned at this event.
        sequence:
          type: integer
          minimum: 1
          description: Global whale_alerts.id sequence.
        published_at:
          type: string
          format: date-time
        payload:
          type: object
          additionalProperties: true
        source:
          $ref: '#/components/schemas/EventReplaySource'
        freshness:
          $ref: '#/components/schemas/EventReplayFreshness'
    EventReplayMeta:
      type: object
      required:
        - request_id
        - cached
        - replay
        - retention
        - completeness
      properties:
        request_id:
          type: string
          description: Unique request ID (req_ prefix).
        cached:
          type: boolean
        cache_age_s:
          type: integer
          nullable: true
        replay:
          type: object
          required:
            - from_cursor
            - to_cursor
            - from_sequence
            - to_sequence
            - ordering
          properties:
            from_cursor:
              type: string
            to_cursor:
              type: string
            from_sequence:
              type: integer
              minimum: 0
            to_sequence:
              type: integer
              minimum: 0
            ordering:
              type: string
              const: whale_alerts_id_asc
        retention:
          type: object
          required:
            - status
            - retained_events
            - cursor_expired
          properties:
            status:
              type: string
              enum:
                - durable_database
            retained_events:
              type: integer
              minimum: 0
            cursor_expired:
              type: boolean
              const: false
        completeness:
          type: object
          required:
            - status
            - reason
          properties:
            status:
              type: string
              enum:
                - complete
                - caught_up
            reason:
              type: string
    EventReplaySource:
      type: object
      required:
        - kind
        - producer_family
        - owner
        - provider_fetch_at_request_time
      properties:
        kind:
          type: string
          const: local_durable_replay
        producer_family:
          type: string
          enum:
            - whale_trades
        owner:
          type: string
          const: whale_alerts
        provider_fetch_at_request_time:
          type: boolean
          const: false
    EventReplayFreshness:
      type: object
      required:
        - status
        - observed_at
      properties:
        status:
          type: string
          const: observed
        observed_at:
          type: string
          format: date-time
    ApiError:
      type: object
      required:
        - object
        - error
        - meta
      properties:
        object:
          type: string
          const: error
        error:
          type: object
          required:
            - code
            - message
          properties:
            code:
              type: string
              enum:
                - bad_request
                - invalid_api_key
                - subscription_required
                - forbidden
                - not_found
                - account_locked
                - rate_limited
                - rate_limit_unavailable
                - internal_error
            message:
              type: string
            doc_url:
              type: string
              nullable: true
            param:
              type: string
              nullable: true
        meta:
          $ref: '#/components/schemas/ResponseMeta'
    ResponseMeta:
      type: object
      required:
        - request_id
        - cached
      properties:
        request_id:
          type: string
          description: Unique request ID (req_ prefix).
        cached:
          type: boolean
        cache_age_s:
          type: integer
          nullable: true
          description: Cache age in seconds, null if not cached.
  headers:
    X-RateLimit-Limit:
      description: Authenticated V1 per-user request limit for the current sliding window.
      schema:
        type: integer
        example: 100
    X-RateLimit-Remaining:
      description: >-
        Authenticated V1 requests remaining in the current sliding window after
        this response.
      schema:
        type: integer
        example: 84
    X-RateLimit-Reset:
      description: Unix timestamp when the authenticated V1 request window resets.
      schema:
        type: integer
        example: 1710772860
    X-Request-Id:
      description: Server-generated request identifier for support and tracing.
      schema:
        type: string
        example: req_550e8400
  responses:
    BadRequest:
      description: Invalid request parameter
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ApiError'
    Unauthorized:
      description: Missing or invalid API key
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ApiError'
    SubscriptionRequired:
      description: Active Insider subscription required
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ApiError'
    Forbidden:
      description: Account access denied
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ApiError'
    RequestTimeout:
      description: >-
        Request exceeded the server's 30-second transport timeout. The timeout
        response has an empty body because it is generated before handler-level
        JSON error shaping.
    Locked:
      description: Account is locked
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ApiError'
    RateLimited:
      description: >-
        Rate limit exceeded (100 req/min; batch endpoints also reserve 100 batch
        item units/min before execution)
      headers:
        Retry-After:
          description: Seconds until rate limit resets.
          schema:
            type: integer
        X-RateLimit-Limit:
          schema:
            type: integer
        X-RateLimit-Remaining:
          schema:
            type: integer
        X-RateLimit-Reset:
          schema:
            type: integer
        X-Request-Id:
          schema:
            type: string
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ApiError'
    RateLimitUnavailable:
      description: >-
        Redis-backed authenticated rate limiter unavailable; retry after the
        per-process outage cooldown
      headers:
        Retry-After:
          description: >-
            Seconds until the middleware will probe the Redis-backed rate
            limiter again.
          schema:
            type: integer
        X-Request-Id:
          schema:
            type: string
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ApiError'
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: >-
        API key: Authorization: Bearer oxi_sk_live_... for live data (requires
        an active Insider subscription), or oxi_sk_test_... for sandbox/test
        mode (free account, deterministic fixture data, no live rows). Both key
        classes use the same paths; the prefix selects live vs sandbox.

````