Tavily web

Tavily Web Search & Research

CLI-based web search, extraction, crawling, and research via curl. No SDK installation required.

Prerequisites

• TAVILY_API_KEY set in environment
• Never hardcode or paste API keys into chat

Choosing the Right Method

Need	Method	Cost	Latency
Web search results	search	1-2 credits	Fast
Content from specific URLs	extract	1+ credits	Fast
Content from entire site	crawl	Variable	Slow
URL discovery from a site	map	1 credit	Fast
End-to-end research with AI synthesis	research	Higher	Minutes

Quick Reference

search — Web Search

curl -s "https://api.tavily.com/search" \
  -H "Authorization: Bearer $TAVILY_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "query": "your search query here",
    "max_results": 5,
    "search_depth": "basic",
    "topic": "general"
  }'

Key parameters:

Parameter	Values	Notes
query	string (max 400 chars)	Keep focused; split complex questions into sub-queries
max_results	1-20 (default 5)	Start small, increase if needed
search_depth	basic (1 credit) / advanced (2 credits)	Use basic unless you need precision
topic	general / news / finance	Determines ranking algorithm
time_range	day / week / month / year	Filter by recency
include_answer	true / "basic" / "advanced"	AI-generated answer from results
include_domains	["domain.com"]	Restrict to specific sites
exclude_domains	["domain.com"]	Exclude specific sites

See references/search.md for full parameter reference and optimization tips.

extract — URL Content Extraction

curl -s "https://api.tavily.com/extract" \
  -H "Authorization: Bearer $TAVILY_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "urls": ["https://example.com/page"],
    "extract_depth": "basic",
    "query": "focus on pricing info",
    "chunks_per_source": 3,
    "format": "markdown"
  }'

Key parameters:

Parameter	Values	Notes
urls	array (max 20)	Target URLs to extract from
extract_depth	basic / advanced	Advanced handles JS-rendered pages
query	string	Focus extraction on specific content
chunks_per_source	1-5	Control output volume
format	markdown / text	Output format

See references/extract.md for full reference.

crawl — Site-Wide Extraction

curl -s "https://api.tavily.com/crawl" \
  -H "Authorization: Bearer $TAVILY_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "url": "https://docs.example.com",
    "max_depth": 2,
    "max_breadth": 10,
    "limit": 20,
    "instructions": "Find API documentation pages",
    "extract_depth": "basic"
  }'

Key parameters:

Parameter	Values	Notes
url	string	Starting URL
max_depth	integer	How many link levels deep
max_breadth	integer	Max links per page
limit	integer	Total pages to extract
instructions	string	Semantic focus for crawler
select_paths	["/docs/*"]	Include only matching paths
exclude_paths	["/blog/*"]	Skip matching paths

See references/crawl.md for full reference.

map — URL Discovery

curl -s "https://api.tavily.com/map" \
  -H "Authorization: Bearer $TAVILY_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "url": "https://docs.example.com"
  }'

Returns a list of URLs found on the site. Useful as a precursor to targeted extract calls (Map-then-Extract pattern).

research — AI-Powered Research

# Start research task
curl -s "https://api.tavily.com/research" \
  -H "Authorization: Bearer $TAVILY_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "input": "Analyze the competitive landscape for X in the SMB market",
    "model": "auto",
    "citation_format": "numbered"
  }'
# Returns: { "request_id": "..." }

# Poll for completion
curl -s "https://api.tavily.com/research/REQUEST_ID" \
  -H "Authorization: Bearer $TAVILY_API_KEY"
# Poll every 10s until status is "completed" or "failed"

Model selection: mini (focused queries, faster), pro (comprehensive, multi-topic), auto (let Tavily decide).

See references/research.md for prompting best practices and structured output schemas.

Procedure

1. Formulate query — Keep under 400 chars. Split multi-part questions into 2-4 focused sub-queries.
2. Pick topic — general for most searches, news for current events (pair with time_range), finance for market data.
3. Pick depth — Start with basic (1 credit). Use advanced (2 credits) only when precision matters.
4. Keep results small — Default max_results to 5. Filter by score and domain trust.
5. Two-step for full text — Run search first, then extract on 1-3 top URLs. This is cheaper and safer than include_raw_content.
6. Cite sources — Always include results[].url as citations in your final answer.
7. For deep research — Use research endpoint with polling. Include citation_format for automatic source attribution.

Pitfalls

Pitfall	Mitigation
include_raw_content on search explodes output	Use two-step: search then extract
search_depth defaults may auto-upgrade to advanced	Set search_depth explicitly to control cost
exact_match is very restrictive	Wrap phrase in quotes inside query instead
country boosting only works with topic: "general"	Don't set country for news/finance topics
Crawl can be expensive on large sites	Set limit, max_depth, max_breadth conservatively
Research polling — don't poll too fast	Poll every 10 seconds, set a max wait timeout

Verification

Check remaining credits:

curl -s "https://api.tavily.com/usage" \
  -H "Authorization: Bearer $TAVILY_API_KEY"

Troubleshooting

Error	Cause	Fix
401 Unauthorized	Invalid or missing API key	Verify TAVILY_API_KEY is set and valid
429 Too Many Requests	Rate limit exceeded	Wait and retry; check usage quota
Empty results	Query too narrow or restrictive	Broaden query, remove domain filters
Slow response on search	advanced depth or too many results	Reduce max_results, use basic depth

Keep request_id from responses for debugging.