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

# Count companies

`POST /companies/count`

Counts the matching companies. Free, and exact when it completes inside the 3 s budget. On zero rows the response carries a `no_rows` warning that names the keys applied.

Counts the matching companies. Free, and exact when it completes inside the 3 s budget. On zero rows the response carries a `no_rows` warning that names the keys applied.

Cost: Free.

## Request body

- `filter` | CompanyFilter | required. The companies to count.
  - `company_ids` | array of CompanyId | optional. Company ids (`com_`) to include. Takes up to 1,000 ids.
  - `domains` | array of string | optional. Company domains. A company matches when any of its domains is in the list. A full URL reduces to a bare domain on input.
  - `exclude_domains` | array of string | optional. Company domains to exclude. A company is left out when any of its domains is in the list.
  - `company_names` | array of string | optional. Company names. Case-insensitive exact match after normalization. Lowercase, trim and collapse whitespace. Strip one trailing legal suffix with an optional comma, then a leading "the ". Legal suffixes: inc, inc., incorporated, llc, l.l.c., ltd, ltd., limited, corp, corp., corporation, co, co., gmbh, ag, sa, s.a., bv, b.v., plc, pty ltd, srl. An empty normalized name returns 400 request.invalid. Values are OR within this key and AND across keys.
  - `exclude_company_names` | array of string | optional. The NOT of company_names after the same normalization. Lowercase, trim and collapse whitespace. Strip one trailing legal suffix with an optional comma, then a leading "the ". Legal suffixes: inc, inc., incorporated, llc, l.l.c., ltd, ltd., limited, corp, corp., corporation, co, co., gmbh, ag, sa, s.a., bv, b.v., plc, pty ltd, srl. An empty normalized name returns 400 request.invalid. Values are OR within this key and AND across keys.
  - `company_size` | array of CompanySize | optional. Company employee bands to include. Values: `1-10`, `11-50`, `51-200`, `201-500`, `501-1K`, `1K-5K`, `5K-10K`, `10K+`.
  - `company_revenue` | array of CompanyRevenue | optional. Company revenue ranges to include. Only companies with a known revenue range match; most small companies have none, so this key leaves them out. Values: `0-1M`, `1M-10M`, `10M-50M`, `50M-100M`, `100M-1B`, `1B+`.
  - `industries` | array of Industry | optional. Company industries to include, as slugs such as software_development. A label such as 'Software Development' or 'IT Services & IT Consulting' is folded to its slug. Read the values from GET /companies/schema/industries/values.
  - `exclude_industries` | array of Industry | optional. Company industries to exclude, as slugs such as software_development. A label such as 'Software Development' or 'IT Services & IT Consulting' is folded to its slug. Read the values from GET /companies/schema/industries/values.
  - `employee_count_min` | integer | optional. The smallest company employee count, inclusive.
  - `employee_count_max` | integer | optional. The largest company employee count, inclusive.
  - `founded_year_min` | integer | optional. The earliest company founding year, inclusive.
  - `founded_year_max` | integer | optional. The latest company founding year, inclusive.
  - `company_hq_countries` | array of Country | optional. Company headquarters countries to include. Send ISO-2 codes such as us, or English names such as Germany.
  - `last_round_after` | YearMonth | optional. The latest financing event is after this month, exclusive.
  - `last_round_before` | YearMonth | optional. The latest financing event is before this month, exclusive.
  - `last_round_types` | array of FundingRoundType | optional. Types of the latest financing event to include. Values: `pre_seed`, `seed`, `series_a`, `series_b`, `series_c_plus`, `private_equity`, `debt`, `other`.
  - `total_funding_min` | integer | optional. The smallest total funding in US dollars, inclusive. Missing funding is null and never matches.
  - `total_funding_max` | integer | optional. The largest total funding in US dollars, inclusive.

## Response

- `count` | integer or null | required. The matching rows, or null when the count passed its 3 s budget. A null count carries a count_unavailable warning.

## Failures

| Status | Meaning |
| --- | --- |
| `400` | The request shape, a filter key, a value, a cursor or the enrichment mode was rejected. |
| `401` | The credential is missing, unknown or revoked. |
| `422` | The filter was rejected before it ran: more than 32 predicates, deeper than 4, more than 25 leaves, more than 1,000 domains or company names, more than 50 values in another list, a leading wildcard in a where leaf, a leading or trailing wildcard in title_query, an operator, value type or shape the column does not take, a leaf other than exists with no value, or an empty `and` or `or` group. |
| `429` | The key passed 300 requests a minute or 2 concurrent requests. |
| `503` | The data is unavailable for a short time. |
| `504` | The query passed its time budget and was stopped. |

## Example

```bash
curl -sS -X POST "https://api.leadmcp.ai/v1/companies/count" \
  -H "Authorization: Bearer lm_live_YOUR_API_KEY" \
  -H "LeadMCP-Version: 2026-09-19" \
  -H "Content-Type: application/json" \
  -d '{"filter":{"company_hq_countries":["us"],"company_size":["51-200","201-500"],"industries":["software_development"]}}'
```

Response `200`:

```json
{
  "ok": true,
  "request_id": "req_01JBQ2W8K9V6M3T0X5Y7Z4A1BC",
  "release": "b_2026_09_15",
  "data": {
    "count": 1840
  },
  "quota": {
    "plan": "free",
    "contact_credits_used": 50,
    "month_remaining": 950,
    "today_remaining": 950,
    "binding": "month",
    "resets_at": "9999-12-31T23:59:59.000Z"
  },
  "warnings": []
}
```