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

# Signalbase API

> Real-time Funding, Acquisition, Job Change Signals & Investor Data API

## Welcome to Signalbase

Signalbase API provides real-time access to funding signals, acquisition signals, job change signals, and comprehensive investor data. Our platform continuously monitors and aggregates intelligence from across the web, giving you up-to-date information to power your sales, marketing, and research workflows.

<CardGroup cols={2}>
  <Card title="Funding Signals" icon="chart-line-up" href="/api-reference/funding-signals/introduction">
    Track real-time funding rounds, amounts, and investor participation across companies worldwide.
  </Card>

  <Card title="Acquisition Signals" icon="bullseye-arrow" href="/api-reference/acquisition-signals/introduction">
    Identify companies showing acquisition indicators and potential M\&A targets.
  </Card>

  <Card title="Job Change Signals" icon="briefcase" href="/api-reference/job-change-signals/introduction">
    Monitor leadership changes and key hires with role, department, and seniority filters.
  </Card>

  <Card title="Investors Database" icon="hand-holding-dollar" href="/api-reference/investors/introduction">
    Access comprehensive data on VCs, angels, PE firms, and corporate investors.
  </Card>
</CardGroup>

## Getting Started

Get your API key from the Signalbase dashboard at [trysignalbase.com/workspace/api](https://www.trysignalbase.com/workspace/api)

### Authentication

All API endpoints require a Bearer token in the `Authorization` header:

```bash theme={null}
curl -X GET "https://www.trysignalbase.com/api/v2/signals/funding?page=1&limit=20" \
  -H "Authorization: Bearer YOUR_API_KEY"
```

### Base URL

All V2 API endpoints use the following base URL:

```
https://www.trysignalbase.com/api/v2
```

## Key Features

* **Real-time Data**: Signals aggregated continuously from web sources
* **Advanced Filtering**: Filter by countries, categories, subcategories, date ranges, numeric ranges, and more
* **Date Presets**: Use relative date shortcuts like `last_30d`, `this_quarter`, or `last_year`
* **Flexible Sorting**: Sort results by date, amount, employee count, and other fields
* **Pagination Support**: Efficiently retrieve large datasets (up to 100 results per page)
* **Credit-based Usage**: Transparent credit consumption per API call
* **99% Uptime**: Enterprise-grade reliability

## Quick Reference

<Card title="Available Filters & Enums" icon="filter" href="/enums">
  View all available filter values, country codes, categories, and enum references.
</Card>