# OpenVerbs Inflect - Count-Based Noun Inflection

> OpenVerbs Inflect - Count-Based Noun Inflection is a paid API for AI agents from inflect.openverbs.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-14).

Returns the singular or plural form of a noun based on a numeric count, optionally prepending the count to the result (e.g. 'apple' + 3 → '3 apples').

## Facts

- Endpoint: POST https://inflect.openverbs.com/v1/count
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/openverbs-inflect-count-based-noun-inflection-916b3a1a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_6PQEeYOWN5oqor8nKyqwi

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 openverbs-inflect-count-based-noun-inflection-916b3a1a -d '<json body>'
```

Example prompt: What's the correct phrasing for 'item' when there are 5 of them — should it be '5 item' or '5 items'? Use the count inflection service to get the properly formatted string with the count included.

## When to prefer this

Use this endpoint when you need grammatically correct singular/plural noun forms tied to a specific numeric count, especially when you also want the count prepended in a single formatted string. Prefer this over the plain plural/singular sibling endpoints when you have a concrete quantity at hand and want a ready-to-display phrase like '3 apples' or '1 apple' without assembling the string yourself.

## Known failure modes

- Missing required 'word' field returns a validation error
- Missing required 'count' field returns a validation error
- Count outside the allowed range (0–1,000,000,000,000) returns a validation error
- Word exceeding 256 characters returns a validation error
- Non-integer count value returns a schema validation error
- Unknown or very exotic words may fall back to naive -s pluralization

## How this service works

Choose the singular or plural form for a given count, e.g. (apple, 3) → "apples", (apple, 1) → "apple". By default the count is prepended ("3 apples"); set includeCount=false to omit it.

## Output

A string containing the correctly inflected singular or plural form of the noun. By default the count is prepended (e.g. '3 apples', '1 apple'); if includeCount is set to false, only the bare inflected word is returned (e.g. 'apples', 'apple'). Handles English irregular forms correctly.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "type": "object",
     "required": [
      "word",
      "count"
     ],
     "properties": {
      "word": {
       "type": "string",
       "maxLength": 256,
       "minLength": 1,
       "description": "The noun to inflect."
      },
      "count": {
       "type": "integer",
       "maximum": 1000000000000,
       "minimum": 0,
       "description": "The quantity."
      },
      "includeCount": {
       "type": "boolean",
       "description": "Prepend the count to the result. Default true."
      }
     },
     "additionalProperties": false
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/openverbs-inflect-count-based-noun-inflection-916b3a1a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from inflect.openverbs.com](https://www.zero.xyz/host/inflect.openverbs.com/llms.txt)