Files
openclaw/docs/tools/exa-search.md
Vincent Koc 1c60e00a34 docs(tools): update Exa Search notes for current API behavior
Add notes about default highlights contents, highlightScores/summary
preservation from responses, description resolution order, and
100-result cap.
2026-03-22 21:39:33 -07:00

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---
summary: "Exa AI search -- neural and keyword search with content extraction"
read_when:
- You want to use Exa for web_search
- You need an EXA_API_KEY
- You want neural search or content extraction
title: "Exa Search"
---
# Exa Search
OpenClaw supports [Exa AI](https://exa.ai/) as a `web_search` provider. Exa
offers neural, keyword, and hybrid search modes with built-in content
extraction (highlights, text, summaries).
## Get an API key
<Steps>
<Step title="Create an account">
Sign up at [exa.ai](https://exa.ai/) and generate an API key from your
dashboard.
</Step>
<Step title="Store the key">
Set `EXA_API_KEY` in the Gateway environment, or configure via:
```bash
openclaw configure --section web
```
</Step>
</Steps>
## Config
```json5
{
plugins: {
entries: {
exa: {
config: {
webSearch: {
apiKey: "exa-...", // optional if EXA_API_KEY is set
},
},
},
},
},
tools: {
web: {
search: {
provider: "exa",
},
},
},
}
```
**Environment alternative:** set `EXA_API_KEY` in the Gateway environment.
For a gateway install, put it in `~/.openclaw/.env`.
## Tool parameters
| Parameter | Description |
| ------------- | ----------------------------------------------------------------------------- |
| `query` | Search query (required) |
| `count` | Results to return (1-100) |
| `type` | Search mode: `auto`, `neural`, `fast`, `deep`, `deep-reasoning`, or `instant` |
| `freshness` | Time filter: `day`, `week`, `month`, or `year` |
| `date_after` | Results after this date (YYYY-MM-DD) |
| `date_before` | Results before this date (YYYY-MM-DD) |
| `contents` | Content extraction options (see below) |
### Content extraction
Exa can return extracted content alongside search results. Pass a `contents`
object to enable:
```javascript
await web_search({
query: "transformer architecture explained",
type: "neural",
contents: {
text: true, // full page text
highlights: { numSentences: 3 }, // key sentences
summary: true, // AI summary
},
});
```
| Contents option | Type | Description |
| --------------- | --------------------------------------------------------------------- | ---------------------- |
| `text` | `boolean \| { maxCharacters }` | Extract full page text |
| `highlights` | `boolean \| { maxCharacters, query, numSentences, highlightsPerUrl }` | Extract key sentences |
| `summary` | `boolean \| { query }` | AI-generated summary |
### Search modes
| Mode | Description |
| ---------------- | --------------------------------- |
| `auto` | Exa picks the best mode (default) |
| `neural` | Semantic/meaning-based search |
| `fast` | Quick keyword search |
| `deep` | Thorough deep search |
| `deep-reasoning` | Deep search with reasoning |
| `instant` | Fastest results |
## Notes
- If no `contents` option is provided, Exa defaults to `{ highlights: true }`
so results include key sentence excerpts
- Results preserve `highlightScores` and `summary` fields from the Exa API
response when available
- Result descriptions are resolved from highlights first, then summary, then
full text — whichever is available
- `freshness` and `date_after`/`date_before` cannot be combined — use one
time-filter mode
- Up to 100 results can be returned per query (subject to Exa search-type
limits)
- Results are cached for 15 minutes by default (configurable via
`cacheTtlMinutes`)
- Exa is an official API integration with structured JSON responses
## Related
- [Web Search overview](/tools/web) -- all providers and auto-detection
- [Brave Search](/tools/brave-search) -- structured results with country/language filters
- [Perplexity Search](/tools/perplexity-search) -- structured results with domain filtering