# browserfoundry

> Search, browser and data APIs for AI agents, behind one key.
> A Keirolabs product.

- base_url: https://api.keirolabs.cloud
- auth: `Authorization: Bearer keiro_...`
- mcp_server: https://keirolabs.space/mcp
- get_a_key: https://platform.keirolabs.cloud/login
- free_tier: 1,250 credits / month, no credit card
- docs: https://platform.keirolabs.cloud/docs

## Search APIs

Live results, cited answers and deep research from one index of the open web.

| endpoint                    | does                                      | credits | latency   |
|-----------------------------|-------------------------------------------|---------|-----------|
| POST /api/v2/search/fast    | ranked results                            | 1       | ~1s       |
| POST /api/v2/search/content | results + full markdown + embeddings      | 3       | ~3s       |
| POST /api/v2/answer         | a cited answer in one call                | 5       | ~2-5s     |
| POST /api/v2/agentic        | multi-step research on hard questions     | 20      | 30s-3min  |

## Browser APIs

Real Chrome sessions your agent can drive when a search result isn't enough.

- POST /v2/browsers/lease: a live session in under a minute
- stealth by default: a real Chrome fingerprint
- residential exits: a fresh IP for every session
- billing: per minute, only while the session is alive

## Data APIs

Clean, structured content from any page, one URL or ten thousand at a time.

| endpoint                    | does                                      | credits        |
|-----------------------------|-------------------------------------------|----------------|
| POST /api/v2/extract        | any URL to clean markdown                 | 3              |
| POST /api/v2/search/batch   | up to 10,000 queries per job              | 1 per query    |
| Google SERP                 | full results pages as JSON                | see docs       |

## Quickstart

```bash
curl -X POST https://api.keirolabs.cloud/api/v2/search/fast \
  -H "Authorization: Bearer $KEIRO_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"query":"latest open source LLMs","maxResults":5}'
```

## Response shape: /search/fast

```json
{
  "results": [
    { "title": "…", "url": "https://…", "snippet": "…", "score": 0.97, "published_date": "…" }
  ],
  "total_results": 5,
  "latency_ms": 942,
  "credits_used": 1
}
```

## Benchmarks

| benchmark                         | keiro  | next best        |
|-----------------------------------|--------|------------------|
| SimpleQA (deep search)            | 95.3%  | Firecrawl 94.7%  |
| FinanceBench (accuracy)           | 78%    | Valyu 73%        |
| AIMultiple Agentic '26 (/20)      | 15.20  | Brave 14.89      |

### Deep search on SimpleQA

953 of 1,000 seeded questions (seed 42) had the gold answer in the returned data.
Retrieval-only: no reader model, no LLM judge. $4.44 per 1,000 requests.
Snippets alone reach 72.4%; reading pages in full adds 15.3 points (7.9 pages per question).

| provider          | SimpleQA |
|-------------------|----------|
| Keiro deep search | 95.3%    |
| Firecrawl         | 94.7%    |
| Tavily            | 93.3%    |
| you.com           | 92.09%   |
| Exa               | 91.9%    |
| Parallel          | 91.0%    |
| Claude Search     | 90.5%    |
| Perplexity        | 85.92%   |
| Google            | 82.15%   |
| Brave Search      | 76.05%   |

Best published run per provider, Sept 2026. The others use a reader model and a
judge, so the gaps are directional. Report: https://keirolabs.cloud/Deep-search

## Works with

Claude Code, Cursor, Codex, Windsurf, OpenCode, Ollama, LangChain, LangGraph,
Vercel AI SDK, CrewAI, n8n, Zapier. One API key and one MCP server.

## Pricing

| plan      | monthly | yearly (per month)        | credits / month | rate limit    |
|-----------|---------|---------------------------|-----------------|---------------|
| Free      | $0      | $0                        | 1,250           | 30 req/min    |
| Essential | $30     | $25 ($300/yr, save $60)   | 12,500          | 60 req/min    |
| Pro       | $50     | $42 ($504/yr, save $100)  | 37,500          | 300 req/min   |
| Startup   | $100    | $83 ($996/yr, save $200)  | 125,000         | 1,000 req/min |

/search/lite costs 0.1 credit per request on subscriptions.
One-time credit packs from $10. All plans: https://keirolabs.cloud/pricing

## Data policy

- never sold: queries and customer data are not sold, shared, or brokered
- never leaves the platform: processed in-region on our own infrastructure
- never trained on: your queries don't train models, ours or anyone's
- pinned to your region: one X-Region header keeps data in EU, US, or APAC

## Links

- docs: https://platform.keirolabs.cloud/docs
- status: https://platform.keirolabs.cloud/status
- blog: https://keirolabs.cloud/blog
- contact: team@keirolabs.cloud