# EPSS (FIRST) API

> EPSS (FIRST) API on Apizie: 1 endpoint (Scores) returned as clean JSON through one API key. 1 endpoint is live now. Call it over REST at https://zieapi.vercel.app/v1/security:epss/{endpoint} or from Claude, ChatGPT and Cursor through the Apizie MCP server. Free plan: 1,000 requests a month.

- Project key: `security:epss`
- Category: Security
- Status: live
- Source: https://www.first.org/epss/api
- Page: https://zieapi.vercel.app/api/security/epss
- OpenAPI: https://zieapi.vercel.app/api/security/epss/openapi.json

Exploit Prediction Scoring System: the probability a CVE is exploited in the next 30 days.

## Endpoints

### Scores
`GET https://zieapi.vercel.app/v1/security:epss/scores`

| Parameter | Type | Required | Description |
|---|---|---|---|
| cve | string | yes |  |

## Example
```
curl "https://zieapi.vercel.app/v1/security:epss/scores" \
  -H "x-api-key: $APIZIE_KEY"
```

## FAQ

### How do I call the EPSS (FIRST) API?
Create a free Apizie key, then send GET https://zieapi.vercel.app/v1/security:epss/scores with the header x-api-key. Every endpoint returns { project, data, timestamp }.

### Is the EPSS (FIRST) API free on Apizie?
Yes. The Free plan includes 1,000 requests a month at 100 requests a minute, no credit card.

### Can AI agents use the EPSS (FIRST) API?
Yes. Add the Apizie MCP server (https://zieapi.vercel.app/mcp) to Claude, ChatGPT, Cursor or VS Code, then ask in plain language. The agent calls run_scraper with project key security:epss.

### What is the status of the EPSS (FIRST) API?
Live: works with just an Apizie key