# Coresignal Company Search by Filter

> Coresignal Company Search by Filter is a paid API for AI agents from x402.orthogonal.com, paid per call via x402, $0.021/call, status unknown (last checked 2026-09-13).

Search for companies using filters like name, country, industry, size, and founding year, returning an array of Coresignal company IDs for further lookup.

## Facts

- Endpoint: POST https://x402.orthogonal.com/coresignal/v2/company_base/search/filter
- Price: $0.021/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/coresignal-company-search-by-filter-bcfe8bdf
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_f04Vch9o14o4tA0ZMO6jP

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability coresignal-company-search-by-filter-bcfe8bdf -d '<json body>'
```

Example prompt: Find me Coresignal company IDs for software development companies in Germany with between 100 and 5000 employees that were founded after 2010 — I want to pull their full profiles next.

## When to prefer this

Use this endpoint when you need to discover companies matching specific firmographic criteria (industry, country, size, founding year) and want Coresignal company IDs to retrieve full profiles. Prefer this over direct name lookup when you need to find multiple companies matching a profile rather than a single known company, or when building prospect lists, market maps, or competitive analyses based on structured filters.

## Known failure modes

- No matching companies found for the given filters — returns an empty array
- Invalid filter values (e.g., non-existent country name or industry string) may return empty results or an error
- Rate limiting or payment failure (x402) may prevent the call from completing
- Overly broad queries with no filters may time out or return excessively large result sets
- Misspelled company names or domains may return zero results

## How this service works

Search for companies using filters passed in the request body. Returns an array of numeric Coresignal company IDs (e.g., [4744382, 1635599, ...]). Use these IDs with the 'Base Company Collect' endpoint to get full company profiles. All filters are optional; combine any number of them to narrow results.

## Output

An array of numeric Coresignal company IDs (e.g., [4744382, 1635599, ...]) matching the provided filter criteria. These IDs can then be passed to the Coresignal Base Company Collect endpoint to retrieve full company profile data.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "name": {
   "type": "string",
   "description": "Company name to search for (e.g., 'Google', 'Stripe')"
  },
  "country": {
   "type": "string",
   "description": "Country name (e.g., 'United States', 'United Kingdom', 'Germany')"
  },
  "website": {
   "type": "string",
   "description": "Company website domain (e.g., 'google.com', 'stripe.com')"
  },
  "industry": {
   "type": "string",
   "description": "Industry filter (e.g., 'Software Development', 'Financial Services', 'Technology, Information and Internet')"
  },
  "founded_year_gte": {
   "type": "number",
   "description": "Minimum founding year (e.g., 2010)"
  },
  "founded_year_lte": {
   "type": "number",
   "description": "Maximum founding year (e.g., 2024)"
  },
  "employees_count_gte": {
   "type": "number",
   "description": "Minimum number of employees (e.g., 100)"
  },
  "employees_count_lte": {
   "type": "number",
   "description": "Maximum number of employees (e.g., 5000)"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/coresignal-company-search-by-filter-bcfe8bdf/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.orthogonal.com](https://www.zero.xyz/host/x402.orthogonal.com/llms.txt)