> ## Documentation Index > Fetch the complete documentation index at: https://developers.meshapi.ai/llms.txt > Use this file to discover all available pages before exploring further. # Get Usage Event Attempts > Per-attempt timeline for one request (the served row + any retried rows sharing its request_id), oldest first — powers the logs drawer's "Attempts" history so a caller can see every model that was tried. Same customer-facing scrubbing as the events list (no provider names / admin fields). Authorization mirrors the events list: an API-key caller sees only events made by that key; a JWT caller must belong to the event's org, and a non-privileged member is restricted to their own events. Anything else 404s (existence is not leaked). ## OpenAPI ````yaml /api/openapi.json get /v1/usage/events/{event_id}/attempts openapi: 3.1.0 info: title: MeshAPI description: One key, all AI models. version: 0.1.0 servers: - url: https://api.meshapi.ai security: - BearerAuth: [] paths: /v1/usage/events/{event_id}/attempts: get: tags: - Usage summary: Get Usage Event Attempts description: >- Per-attempt timeline for one request (the served row + any retried rows sharing its request_id), oldest first — powers the logs drawer's "Attempts" history so a caller can see every model that was tried. Same customer-facing scrubbing as the events list (no provider names / admin fields). Authorization mirrors the events list: an API-key caller sees only events made by that key; a JWT caller must belong to the event's org, and a non-privileged member is restricted to their own events. Anything else 404s (existence is not leaked). operationId: get_usage_event_attempts parameters: - name: event_id in: path required: true schema: type: string title: Event Id - in: header name: X-Mesh-Version required: false schema: type: string enum: - 2026-08 default: 2026-08 example: 2026-08 description: >- Dated version of the API contract to pin this request to. Omit it and the request is served under `2026-08` — the oldest supported version, so an existing integration is never moved by a release. A malformed or unsupported value is rejected with `400 invalid_api_version` rather than falling back silently. The version actually served is echoed as `X-Mesh-Version` on every response, including errors. responses: '200': description: Successful Response content: application/json: schema: type: array items: $ref: '#/components/schemas/UsageEventOut' title: Response Get Usage Event Attempts '422': description: Validation Error content: application/json: schema: $ref: '#/components/schemas/HTTPValidationError' security: - BearerAuth: [] components: schemas: UsageEventOut: properties: id: type: string title: Id key_id: type: string title: Key Id key_label: anyOf: - type: string - type: 'null' title: Key Label user_id: anyOf: - type: string - type: 'null' title: User Id end_user_id: anyOf: - type: string - type: 'null' title: End User Id request_id: type: string title: Request Id model: type: string title: Model model_name: type: string title: Model Name model_provider: anyOf: - type: string - type: 'null' title: Model Provider stream: type: boolean title: Stream prompt_tokens: anyOf: - type: integer - type: 'null' title: Prompt Tokens completion_tokens: anyOf: - type: integer - type: 'null' title: Completion Tokens total_tokens: anyOf: - type: integer - type: 'null' title: Total Tokens cost_usd: anyOf: - type: string - type: 'null' title: Cost Usd latency_ms: anyOf: - type: integer - type: 'null' title: Latency Ms tokens_per_second: anyOf: - type: number - type: 'null' title: Tokens Per Second provider_latency_ms: anyOf: - type: integer - type: 'null' title: Provider Latency Ms platform_latency_ms: anyOf: - type: integer - type: 'null' title: Platform Latency Ms ttft_ms: anyOf: - type: integer - type: 'null' title: Ttft Ms status: type: string title: Status error_code: anyOf: - type: string - type: 'null' title: Error Code error_category: anyOf: - type: string - type: 'null' title: Error Category error_message: anyOf: - type: string - type: 'null' title: Error Message created_at: type: string title: Created At images_generated: anyOf: - type: integer - type: 'null' title: Images Generated model_type: anyOf: - type: string - type: 'null' title: Model Type is_byok: anyOf: - type: boolean - type: 'null' title: Is Byok byok_key_id: anyOf: - type: string - type: 'null' title: Byok Key Id byok_key_label: anyOf: - type: string - type: 'null' title: Byok Key Label provider: anyOf: - type: string - type: 'null' title: Provider fallback_triggered: anyOf: - type: boolean - type: 'null' title: Fallback Triggered platform_fee_usd: anyOf: - type: string - type: 'null' title: Platform Fee Usd image_tokens: anyOf: - type: integer - type: 'null' title: Image Tokens member_name: anyOf: - type: string - type: 'null' title: Member Name member_email: anyOf: - type: string - type: 'null' title: Member Email attempt_no: anyOf: - type: integer - type: 'null' title: Attempt No is_retry_attempt: anyOf: - type: boolean - type: 'null' title: Is Retry Attempt routing_fallback: anyOf: - type: boolean - type: 'null' title: Routing Fallback model_requested: anyOf: - type: string - type: 'null' title: Model Requested type: object required: - id - key_id - key_label - request_id - model - model_name - model_provider - stream - prompt_tokens - completion_tokens - total_tokens - cost_usd - latency_ms - tokens_per_second - status - error_code - created_at title: UsageEventOut HTTPValidationError: properties: detail: items: $ref: '#/components/schemas/ValidationError' type: array title: Detail type: object title: HTTPValidationError ValidationError: properties: loc: items: anyOf: - type: string - type: integer type: array title: Location msg: type: string title: Message type: type: string title: Error Type input: title: Input ctx: type: object title: Context type: object required: - loc - msg - type title: ValidationError securitySchemes: BearerAuth: type: http scheme: bearer description: >- Enter your MeshAPI key (`rsk_...`) — sent as `Authorization: Bearer `. ````