> ## Documentation Index > Fetch the complete documentation index at: https://docs.arcmira.com/llms.txt > Use this file to discover all available pages before exploring further. > ## Agent Instructions > Arcmira has three API capabilities: Search (entities, mentions, appearances, commercial intelligence), Monitors (trackers plus alert delivery), and Transcripts (read, generate, correct). Community Review is the cross-surface correction layer. > Discover pages at https://docs.arcmira.com/llms.txt, then fetch the matching page's .md export. Each capability has a self-contained ' for coding agents' page; prefer it. > Auth: Authorization: Bearer arc_sk_... or x-api-key: arc_sk_... (x-api-key wins if both are sent). Never put keys in browser code. Check GET /v1/me for tier, scopes, and remaining rows before metered pulls. > Search: resolve names with GET /v1/entities/lookup and pin ent_* IDs before pulling metered rows. Only person entities have appearances. Mention and recommendation rows carry canonical numeric timestamps in start_seconds/end_seconds (integer seconds; 0 means full episode); the MM:SS string fields are deprecated. Commercial routes need Pro+ tier AND the recommendations:read scope and bill 10 rows per row. > Monitors: a tracker watches one entity; a monitor groups trackers with shared delivery (email, Slack, HMAC-signed webhooks). Create trackers with POST /v1/trackers, then attach by id: POST /v1/monitors/{id}/trackers { trackerIds: [...] }. Each fired alert occurrence debits 100 rows. Poll GET /v1/monitors/{id}/alerts?n= for recent deliveries. Send Idempotency-Key on every POST/PATCH. > Transcripts: switch on the access field (unlocked, locked, premium_pending, not_transcribed, unauthenticated). Honor Retry-After when polling POST /v1/transcriptions jobs. Corrections (POST /v1/videos/{video_id}/corrections; kinds line_edit, speaker_reassign, speaker_identify, add_person, entity_tag, segment_rewrite) cost 0 rows; anchored kinds need revision + anchor.contentHash (djb2 base-36); handle 409 (re-anchor) and 412 (expectedSeq). segment_rewrite replaces an inclusive segment range with new segments (empty replacements array deletes; timestamps repaired server-side). > Community Review is free (0 rows) and surface-typed: POST /v1/feedback with a type matching the surface you called, the reproducing query, and corrections targeting public IDs (ent_*, men_*, com_*). Nothing auto-applies. Do not send untyped notes. > Errors: switch on error.code, follow doc_url, quote X-Request-Id to support. Honor Retry-After on 429. Retries of POST/PATCH must reuse the same Idempotency-Key; replays return Idempotency-Replayed: true. # List recurring channel sponsors > Rollup of recurring sponsors for a YouTube channel, ordered by ad read count. Requires the recommendations:read scope on a plan with Recommendations API access. Sponsors with fewer than min_ad_reads ad reads (default 3) are excluded; status filters against the curated known-advertisers dataset. ## OpenAPI ````yaml /openapi/arcmira-v1.json get /v1/channels/{channel_id}/sponsors openapi: 3.1.0 info: title: Arcmira API version: 1.0.0 contact: name: Arcmira url: https://arcmira.com servers: - url: https://api.arcmira.com security: [] paths: /v1/channels/{channel_id}/sponsors: get: tags: - Recommendations summary: List recurring channel sponsors description: >- Rollup of recurring sponsors for a YouTube channel, ordered by ad read count. Requires the recommendations:read scope on a plan with Recommendations API access. Sponsors with fewer than min_ad_reads ad reads (default 3) are excluded; status filters against the curated known-advertisers dataset. operationId: list_channel_sponsors parameters: - schema: type: integer minimum: 1 maximum: 100 default: 3 required: false name: min_ad_reads in: query - schema: type: string enum: - active - lapsed - ended - uncertain required: false name: status in: query - schema: type: integer minimum: 1 maximum: 200 default: 100 required: false name: limit in: query responses: '200': description: Success content: application/json: schema: $ref: '#/components/schemas/ChannelSponsorsResponse' '400': description: Invalid request content: application/json: schema: type: object properties: error: type: object properties: type: type: string code: type: string message: type: string param: type: string doc_url: type: string request_id: type: string required: - type - code - message - doc_url - request_id required: - error '401': description: Authentication error content: application/json: schema: type: object properties: error: type: object properties: type: type: string code: type: string message: type: string param: type: string doc_url: type: string request_id: type: string required: - type - code - message - doc_url - request_id required: - error '402': description: Quota exceeded content: application/json: schema: type: object properties: error: type: object properties: type: type: string code: type: string message: type: string param: type: string doc_url: type: string request_id: type: string required: - type - code - message - doc_url - request_id required: - error '403': description: Permission error content: application/json: schema: type: object properties: error: type: object properties: type: type: string code: type: string message: type: string param: type: string doc_url: type: string request_id: type: string required: - type - code - message - doc_url - request_id required: - error '404': description: Not found content: application/json: schema: type: object properties: error: type: object properties: type: type: string code: type: string message: type: string param: type: string doc_url: type: string request_id: type: string required: - type - code - message - doc_url - request_id required: - error '409': description: Conflict content: application/json: schema: type: object properties: error: type: object properties: type: type: string code: type: string message: type: string param: type: string doc_url: type: string request_id: type: string required: - type - code - message - doc_url - request_id required: - error '429': description: Rate limit exceeded content: application/json: schema: type: object properties: error: type: object properties: type: type: string code: type: string message: type: string param: type: string doc_url: type: string request_id: type: string required: - type - code - message - doc_url - request_id required: - error '500': description: Server error content: application/json: schema: type: object properties: error: type: object properties: type: type: string code: type: string message: type: string param: type: string doc_url: type: string request_id: type: string required: - type - code - message - doc_url - request_id required: - error security: - bearerAuth: [] - apiKeyAuth: [] components: schemas: ChannelSponsorsResponse: type: object properties: channel: type: object properties: id: type: - string - 'null' description: >- Public entity id ("ent_{n}") of the channel. Null when the channel has media in the index but no entity record yet. youtube_channel_id: type: string description: YouTube channel id as supplied in the request path. name: type: - string - 'null' description: Channel name. Null when no entity record exists. required: - id - youtube_channel_id - name sponsors: type: array items: $ref: '#/components/schemas/ChannelSponsor' description: Recurring sponsors ordered by ad read count (descending). meta: type: object properties: min_ad_reads: type: integer description: The min_ad_reads threshold applied (default 3). count: type: integer description: Number of sponsors returned. required: - min_ad_reads - count required: - channel - sponsors - meta ChannelSponsor: type: object properties: entity: allOf: - $ref: '#/components/schemas/EntityRef' - description: The sponsoring entity. ad_reads: type: integer description: >- Number of ad_read recommendation rows for this sponsor on the channel. videos: type: integer description: Number of distinct videos containing those ad reads. first_seen: type: - string - 'null' description: >- Publish timestamp of the earliest video with an ad read. Null when unknown. last_seen: type: - string - 'null' description: >- Publish timestamp of the most recent video with an ad read. Null when unknown. sponsor_status: type: - object - 'null' properties: status: type: string description: >- Curated sponsorship status from the known-advertisers dataset. Values: active (currently sponsoring), lapsed (no recent ad reads), ended (relationship known to have ended), uncertain (signal too weak to classify). ad_count: type: - integer - 'null' description: Curated ad count from the known-advertisers dataset. first_ad_date: type: - string - 'null' description: Curated first-ad date. Null when not recorded. last_ad_date: type: - string - 'null' description: Curated last-ad date. Null when not recorded. required: - status - ad_count - first_ad_date - last_ad_date description: >- Curated known-advertiser record for this sponsor/channel pair. Null unless the pair exists in the curated dataset. required: - entity - ad_reads - videos - first_seen - last_seen - sponsor_status EntityRef: type: object properties: id: type: string description: Public entity id in the form "ent_{n}". name: type: string description: Canonical entity name. type: type: string description: >- Entity type. Values: person (an individual), organization (a company or institution; legacy rows may read company or brand), product (a product or service), topic (a subject or theme), channel (a media source such as a YouTube channel), unknown (type was never classified). required: - id - name - type securitySchemes: bearerAuth: type: http scheme: bearer bearerFormat: arc_sk_* apiKeyAuth: type: apiKey in: header name: x-api-key ````