/cloudflare-deploy

AI Search API Reference

Workers Binding

const answer = await env.AI.autorag("instance-name").aiSearch(options);
const results = await env.AI.autorag("instance-name").search(options);
const instances = await env.AI.autorag("_").listInstances();

aiSearch() Options

interface AiSearchOptions {
  query: string;                          // User query
  model: string;                          // Workers AI model ID
  system_prompt?: string;                 // LLM instructions
  rewrite_query?: boolean;                // Fix typos (default: false)
  max_num_results?: number;               // Max chunks (default: 10)
  ranking_options?: { score_threshold?: number }; // 0.0-1.0 (default: 0.3)
  reranking?: { enabled: boolean; model: string };
  stream?: boolean;                       // Stream response (default: false)
  filters?: Filter;                       // Metadata filters
  page?: string;                          // Pagination token
}

Response

interface AiSearchResponse {
  search_query: string;      // Query used (rewritten if enabled)
  response: string;          // AI-generated answer
  data: SearchResult[];      // Retrieved chunks
  has_more: boolean;
  next_page?: string;
}

interface SearchResult {
  id: string;
  score: number;
  content: string;
  metadata: { filename: string; folder: string; timestamp: number };
}

Filters

// Comparison
{ column: "folder", operator: "gte", value: "docs/" }

// Compound
{ operator: "and", filters: [
  { column: "folder", operator: "gte", value: "docs/" },
  { column: "timestamp", operator: "gte", value: 1704067200 }
]}

Operators: eq, ne, gt, gte, lt, lte

Built-in metadata: filename, folder, timestamp (Unix seconds)

Streaming

const stream = await env.AI.autorag("docs").aiSearch({ query, model, stream: true });
return new Response(stream, { headers: { "Content-Type": "text/event-stream" } });

Error Types

REST API

curl https://api.cloudflare.com/client/v4/accounts/{ACCOUNT_ID}/autorag/rags/{NAME}/ai-search \
  -H "Authorization: Bearer {TOKEN}" \
  -d '{"query": "...", "model": "@cf/meta/llama-3.3-70b-instruct-fp8-fast"}'

Requires Service API token with "AI Search - Read" permission.