> ## Documentation Index
> Fetch the complete documentation index at: https://docs.firecrawl.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# Nous Research

> Use Firecrawl as a tool with Nous Research Hermes models.

Pair [Nous Research](https://nousresearch.com) Hermes models with Firecrawl to give Hermes live web search, scrape, and crawl.

Hermes models support OpenAI-compatible tool calls, so Firecrawl plugs in as a function the model can invoke. You can reach Hermes via the Nous Portal API, via [OpenRouter](/quickstarts/openrouter), or through Nous's Forge agent platform.

## Setup

```bash theme={null}
npm install @mendable/firecrawl-js openai zod
```

```bash theme={null}
export FIRECRAWL_API_KEY=fc-YOUR-API-KEY
export NOUS_API_KEY=YOUR-NOUS-PORTAL-KEY
```

## Hermes + Firecrawl Tool Call

```typescript theme={null}
import FirecrawlApp from '@mendable/firecrawl-js';
import OpenAI from 'openai';
import { z } from 'zod';

const firecrawl = new FirecrawlApp({ apiKey: process.env.FIRECRAWL_API_KEY });

// Nous Portal is OpenAI-compatible
const nous = new OpenAI({
  apiKey: process.env.NOUS_API_KEY,
  baseURL: 'https://inference-api.nousresearch.com/v1',
});

const SearchArgs = z.object({
  query: z.string().describe('The web search query'),
  limit: z.number().int().min(1).max(10).default(5),
});

const ScrapeArgs = z.object({
  url: z.string().describe('The URL to scrape'),
});

const tools = [
  {
    type: 'function' as const,
    function: {
      name: 'web_search',
      description: 'Search the web with Firecrawl and return top results.',
      parameters: z.toJSONSchema(SearchArgs),
    },
  },
  {
    type: 'function' as const,
    function: {
      name: 'scrape_website',
      description: 'Scrape the markdown content of a URL.',
      parameters: z.toJSONSchema(ScrapeArgs),
    },
  },
];

const response = await nous.chat.completions.create({
  model: 'Hermes-4-405B',
  tools,
  messages: [
    {
      role: 'user',
      content: 'Research Firecrawl\'s /agent endpoint and cite the docs.',
    },
  ],
});

for (const call of response.choices[0]?.message.tool_calls ?? []) {
  if (call.function.name === 'web_search') {
    const { query, limit } = SearchArgs.parse(JSON.parse(call.function.arguments));
    const results = await firecrawl.search(query, { limit });
    console.log(results.web);
  }
  if (call.function.name === 'scrape_website') {
    const { url } = ScrapeArgs.parse(JSON.parse(call.function.arguments));
    const page = await firecrawl.scrape(url, { formats: ['markdown'] });
    console.log(page.markdown);
  }
}
```

## Hermes via OpenRouter

Prefer a single gateway for multiple models? Route Hermes through OpenRouter:

```typescript theme={null}
const client = new OpenAI({
  apiKey: process.env.OPENROUTER_API_KEY,
  baseURL: 'https://openrouter.ai/api/v1',
});

await client.chat.completions.create({
  model: 'nousresearch/hermes-4-405b',
  // ...same tools, same messages
});
```

See the [OpenRouter guide](/quickstarts/openrouter) for the full pattern.

## Notes

* Hermes is strong at structured tool output — pair with Firecrawl's [JSON format](/features/llm-extract) to chain scrape → extract cleanly.
* For long-running agent loops, stream tool calls and use Firecrawl's [async crawl](/features/crawl) so the model isn't blocked on large scrapes.
* Verify the exact Nous Portal base URL and model slug at [portal.nousresearch.com](https://portal.nousresearch.com) — model names update as new Hermes generations ship.