exa-install-auth
Install the exa-js SDK and configure API key authentication. Use when setting up a new Exa integration, configuring API keys, or initializing Exa in a Node.js/Python project. Trigger with phrases like "install exa", "setup exa", "exa auth", "configure exa API key", "exa-js".
What this skill does
# Exa Install & Auth
## Overview
Install the official Exa SDK and configure API key authentication. Exa is a neural search API at `api.exa.ai` that retrieves web content using semantic similarity. Authentication uses the `x-api-key` header. The SDK is `exa-js` on npm or `exa-py` on PyPI.
## Prerequisites
- Node.js 18+ or Python 3.10+
- Package manager (npm, pnpm, yarn, or pip)
- Exa account at [dashboard.exa.ai](https://dashboard.exa.ai)
- API key from the Exa dashboard
## Instructions
### Step 1: Install the SDK
**Node.js (exa-js)**
```bash
set -euo pipefail
npm install exa-js
# or
pnpm add exa-js
```
**Python (exa-py)**
```bash
pip install exa-py
```
### Step 2: Configure the API Key
```bash
# Set environment variable
export EXA_API_KEY="your-api-key-here"
# Or create .env file (add .env to .gitignore first)
echo 'EXA_API_KEY=your-api-key-here' >> .env
```
Add to `.gitignore`:
```
.env
.env.local
.env.*.local
```
### Step 3: Initialize the Client
**TypeScript**
```typescript
import Exa from "exa-js";
const exa = new Exa(process.env.EXA_API_KEY);
```
**Python**
```python
from exa_py import Exa
import os
exa = Exa(api_key=os.environ["EXA_API_KEY"])
```
### Step 4: Verify Connection
```typescript
import Exa from "exa-js";
const exa = new Exa(process.env.EXA_API_KEY);
async function verifyConnection() {
try {
const result = await exa.search("test connectivity", { numResults: 1 });
console.log("Connected. Results:", result.results.length);
console.log("First result:", result.results[0]?.title);
} catch (err: any) {
if (err.status === 401) {
console.error("Invalid API key. Check EXA_API_KEY.");
} else if (err.status === 402) {
console.error("No credits remaining. Top up at dashboard.exa.ai.");
} else {
console.error("Connection failed:", err.message);
}
}
}
verifyConnection();
```
## Output
- `exa-js` or `exa-py` installed in project dependencies
- `EXA_API_KEY` environment variable configured
- `.env` added to `.gitignore`
- Successful search result confirming connectivity
## Error Handling
| Error | HTTP Code | Cause | Solution |
|-------|-----------|-------|----------|
| `INVALID_API_KEY` | 401 | Missing or invalid API key | Verify key at dashboard.exa.ai |
| `NO_MORE_CREDITS` | 402 | Account balance exhausted | Top up credits in dashboard |
| `MODULE_NOT_FOUND` | N/A | SDK not installed | Run `npm install exa-js` |
| `ENOTFOUND` | N/A | Network unreachable | Check internet connectivity |
| `API_KEY_BUDGET_EXCEEDED` | 402 | Spending limit reached | Increase budget in dashboard |
## Examples
### With dotenv (Node.js)
```typescript
import "dotenv/config";
import Exa from "exa-js";
const exa = new Exa(process.env.EXA_API_KEY);
```
### With Validation
```typescript
function createExaClient(): Exa {
const apiKey = process.env.EXA_API_KEY;
if (!apiKey) {
throw new Error(
"EXA_API_KEY not set. Get one at https://dashboard.exa.ai"
);
}
return new Exa(apiKey);
}
```
## Resources
- [Exa Dashboard](https://dashboard.exa.ai)
- [Exa Getting Started](https://docs.exa.ai/reference/getting-started)
- [exa-js on npm](https://www.npmjs.com/package/exa-js)
- [exa-py on PyPI](https://pypi.org/project/exa-py/)
## Next Steps
After successful auth, proceed to `exa-hello-world` for your first search.
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