Delphi Search API

openapi: 3.1.0
info:
  title: Delphi Audience Search API
  version: v3
  x-provenance:
    generated: '2026-07-18'
    method: generated
    source: https://docs.delphi.ai/advanced/actions/api-immortal-only.md and the per-resource reference pages (audience, conversations, clone, questions, tags, usage, voice, search). Hand-built from the published REST reference; Delphi does not publish a machine-readable OpenAPI.
  description: The Delphi API lets you integrate your Digital Mind (an AI clone trained on your content) directly into your own app, platform, or workflow. Create conversations, stream text and voice responses, manage your audience and its contextual memory, organize contacts with tags, search your clone's knowledge base for RAG, and track per-user usage. API access is available on the Immortal plan. All endpoints authenticate with an API key passed in the x-api-key header and are scoped to a single clone.
  contact:
    name: Delphi Support
    email: support@delphi.ai
    url: https://docs.delphi.ai/advanced/actions/api-immortal-only
  termsOfService: https://delphi.ai/terms
servers:
- url: https://api.delphi.ai
  description: Production
security:
- ApiKeyAuth: []
tags:
- name: Search
  description: Search your clone's digital mind for relevant chunks or content.
paths:
  /v3/search/query:
    post:
      operationId: searchQuery
      tags:
      - Search
      summary: Search chunks
      description: Search for relevant passages from your clone's digital mind. Supports semantic search, keyword/phrase (BM25) matching, and optional scoping to specific content sources. Powers custom search, RAG pipelines, and content discovery.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
              - query
              properties:
                query:
                  type: array
                  items:
                    type: string
                  description: Semantic search strings (questions or topics)
                keywords:
                  type: array
                  items:
                    type: string
                  description: Keyword/phrase strings for exact-match (BM25) boosting
                content:
                  type: array
                  items:
                    type: string
                  description: Content descriptions to scope results to matching sources
                contentIds:
                  type: array
                  items:
                    type: string
                  description: Direct content IDs to filter results
                limit:
                  type: integer
                  minimum: 1
                  maximum: 50
                  default: 10
                tag:
                  type: string
                  description: Access tier tag (e.g. PUBLIC
                  PREMIUM): null
            example:
              query:
              - What is your advice on building a startup?
              keywords:
              - fundraising
              - Series A
              limit: 5
      responses:
        '200':
          description: Matching chunks and their content sources
          content:
            application/json:
              schema:
                type: object
                properties:
                  chunks:
                    type: array
                    items:
                      $ref: '#/components/schemas/Chunk'
                  content:
                    type: array
                    items:
                      $ref: '#/components/schemas/Content'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '429':
          $ref: '#/components/responses/RateLimited'
  /v3/search/content:
    post:
      operationId: searchContent
      tags:
      - Search
      summary: Search content sources
      description: Search for content sources (documents, articles, podcasts) in the knowledge base by title or description. Use to discover available content before a chunk search.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
              - query
              properties:
                query:
                  type: array
                  items:
                    type: string
                tag:
                  type: string
            example:
              query:
              - fundraising
              - startup advice
      responses:
        '200':
          description: Matching content sources
          content:
            application/json:
              schema:
                type: object
                properties:
                  content:
                    type: array
                    items:
                      $ref: '#/components/schemas/Content'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '429':
          $ref: '#/components/responses/RateLimited'
components:
  responses:
    Unauthorized:
      description: Missing or invalid API key
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    RateLimited:
      description: Too many requests — 120 requests per 60 seconds per API key exceeded
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
  schemas:
    Content:
      type: object
      properties:
        contentId:
          type: string
        title:
          type: string
        contentType:
          type: string
          description: e.g. podcast, article, pdf, video
        summary:
          type:
          - string
          - 'null'
        metaData:
          type: object
        createdTime:
          type: string
          format: date-time
        editedTime:
          type: string
          format: date-time
    Error:
      type: object
      properties:
        error:
          type: string
          description: Error message
    Chunk:
      type: object
      properties:
        text:
          type: string
        sources:
          type: array
          items:
            type: object
            properties:
              contentId:
                type: string
              title:
                type: string
        createdTime:
          type: string
          format: date-time
        editedTime:
          type: string
          format: date-time
  securitySchemes:
    ApiKeyAuth:
      type: apiKey
      in: header
      name: x-api-key
      description: API key scoped to a single clone. Available on the Immortal plan; request one from support@delphi.ai.