# Coresignal Employee Search by Filter

> Coresignal Employee 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).

Searches for professionals and employees using filters like skill, location, industry, or company, returning an array of Coresignal employee IDs for further profile retrieval.

## Facts

- Endpoint: POST https://x402.orthogonal.com/coresignal/v2/employee_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-employee-search-by-filter-6faace68
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_q8ynpDplJn_zBt7fSFm-q

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-employee-search-by-filter-6faace68 -d '<json body>'
```

Example prompt: Can you find me Coresignal employee IDs for Python developers in San Francisco who work in the Software Development industry and have 'Software Engineer' in their headline?

## When to prefer this

Use this endpoint when you need to discover professionals matching specific criteria (skill, location, company, job title) and want to retrieve Coresignal employee IDs for bulk profile lookups. Prefer this over name-based lookup when you don't know exact individuals but want to find a pool of matching professionals. It is particularly well-suited for talent sourcing, sales prospecting, competitive intelligence, and market research workflows where you need to filter a large professional database before fetching full profile details.

## Known failure modes

- No results returned when filters are too narrow or specific — try broadening location or removing skill filter
- Invalid or misspelled filter values (e.g. unrecognized country name) may return empty results
- Overly broad queries with no filters may return very large ID arrays or be rate-limited
- Network or payment authorization failures resulting in HTTP 402 or 5xx errors
- Combining contradictory filters (e.g. company name and unrelated industry) yields empty results

## How this service works

Search for professionals/employees using filters passed in the request body. Returns an array of numeric Coresignal employee IDs (e.g., [374311229, 958490751, ...]). Use these IDs with the 'Base Employee Collect by ID' endpoint to get full profiles. All filters are optional; combine any number of them to narrow results.

## Output

An array of numeric Coresignal employee IDs (e.g., [374311229, 958490751, ...]) matching the applied filters. These IDs must be used with the Coresignal 'Base Employee Collect by ID' endpoint to retrieve full professional profiles including work history, skills, and contact details.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "skill": {
   "type": "string",
   "description": "Professional skill (e.g., 'Python', 'Machine Learning', 'Product Management')"
  },
  "country": {
   "type": "string",
   "description": "Country name (e.g., 'United States', 'India')"
  },
  "headline": {
   "type": "string",
   "description": "Professional headline or current job title (e.g., 'CEO', 'Software Engineer')"
  },
  "industry": {
   "type": "string",
   "description": "Industry (e.g., 'Software Development', 'Financial Services')"
  },
  "location": {
   "type": "string",
   "description": "Location (e.g., 'San Francisco', 'New York, NY')"
  },
  "full_name": {
   "type": "string",
   "description": "Full name of the person (e.g., 'Sundar Pichai')"
  },
  "experience_title": {
   "type": "string",
   "description": "Job title from work experience (e.g., 'Senior Engineer', 'VP of Sales')"
  },
  "experience_company_name": {
   "type": "string",
   "description": "Company name from work experience (e.g., 'Google', 'Meta')"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/coresignal-employee-search-by-filter-6faace68/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)