Execute Exa primary workflow: Core Workflow A.
Use when implementing primary use case,
building main features, or core integration tasks.
Trigger with phrases like "exa main workflow",
"primary task with exa".
Primary workflow for Exa: semantic web search using search() and searchAndContents(). Exa's neural search understands query meaning rather than matching keywords, making it ideal for research, RAG pipelines, and content discovery. This skill covers search types, content extraction, filtering, and categories.
Prerequisites
exa-js installed and EXA_API_KEY configured
Understanding of neural vs keyword search tradeoffs
Search Types
Type
Latency
Best For
auto (default)
300-1500ms
General queries; Exa picks best approach
neural
500-2000ms
Conceptual/semantic queries
keyword
200-500ms
Exact terms, names, URLs
fast
p50 < 425ms
Speed-critical applications
instant
< 150ms
Real-time autocomplete
deep
2-5s
Maximum quality, light deep search
deep-reasoning
5-15s
Complex research questions
Instructions
Step 1: Basic Neural Search
import Exa from "exa-js";
const exa = new Exa(process.env.EXA_API_KEY);
// Neural search: phrase your query as a statement, not a question
const results = await exa.search(
"comprehensive guide to building production RAG systems",
{
type: "neural",
numResults: 10, // max 100 for neural/deep
}
);
for (const r of results.results) {
console.log(`[${r.score.toFixed(2)}] ${r.title} — ${r.url}`);
console.log(` Published: ${r.publishedDate || "unknown"}`);
}
Step 2: Search with Content Extraction
// searchAndContents returns page text, highlights, and/or summaries
const results = await exa.searchAndContents(
"best practices for vector database selection",
{
type: "auto",
numResults: 5,
// Text: full page content as markdown
text: { maxCharacters: 2000 },
// Highlights: key excerpts relevant to a custom query
highlights: {
maxCharacters: 500,
query: "comparison of vector databases",
},
// Summary: LLM-generated summary tailored to a query
summary: { query: "which vector database should I choose?" },
}
);
for (const r of results.results) {
console.log(`## ${r.title}`);
console.log(`Summary: ${r.summary}`);
console.log(`Highlights: ${r.highlights?.join(" ... ")}`);
console.log(`Full text: ${r.text?.substring(0, 300)}...`);
}
Step 3: Date and Domain Filtering
// Filter by publication date and restrict to specific domains
const results = await exa.searchAndContents(
"TypeScript 5.5 new features",
{
type: "auto",
numResults: 10,
// Date filters use ISO 8601 format
startPublishedDate: "2024-06-01T00:00:00.000Z",
endPublishedDate: "2025-01-01T00:00:00.000Z",
// Domain filters (up to 1200 domains each)
includeDomains: ["devblogs.microsoft.com", "typescriptlang.org"],
// Text content filters (1 string, max 5 words each)
includeText: ["TypeScript"],
text: true,
}
);
Step 4: Category-Scoped Search
// Categories narrow results to specific content types
// Available: company, research paper, news, tweet, personal site,
// financial report, people
const papers = await exa.searchAndContents(
"attention mechanism improvements for long context LLMs",
{
type: "neural",
numResults: 10,
category: "research paper",
text: { maxCharacters: 3000 },
highlights: true,
}
);
const companies = await exa.search(
"AI infrastructure startup founded 2024",
{
type: "auto",
numResults: 10,
category: "company",
// Note: company and people categories do NOT support date filters
}
);
Step 5: Content Freshness with LiveCrawl
// Control whether Exa fetches fresh content or uses cache
const results = await exa.searchAndContents(
"latest AI model releases this week",
{
numResults: 5,
text: { maxCharacters: 1500 },
// maxAgeHours controls freshness (replaces deprecated livecrawl)
// 0 = always crawl fresh, -1 = never crawl, positive = max cache age
livecrawl: "preferred", // try fresh, fall back to cache
livecrawlTimeout: 10000, // 10s timeout for live crawling
}
);
Output
Ranked search results with URLs, titles, scores, and published dates
Optional text content, highlights, and summaries per result
Results filtered by date range, domains, categories, and text content