# inflect.openverbs.com Pluralize

> inflect.openverbs.com Pluralize is a paid API for AI agents from inflect.openverbs.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-15).

Returns the correct plural form of a given English word, including irregular plurals like person→people and mouse→mice.

## Facts

- Endpoint: POST https://inflect.openverbs.com/v1/pluralize
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/inflect-openverbs-com-pluralize-1d1346cc
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_sqyu11rCSlOvVXKG7KtwA

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 inflect-openverbs-com-pluralize-1d1346cc -d '<json body>'
```

Example prompt: What's the plural form of 'person'? I need the correctly inflected English plural, including any irregular forms.

## When to prefer this

Choose this endpoint when you need reliable, programmatic English pluralization that correctly handles irregular nouns — especially when building dynamic UIs, generating natural language content, or normalizing database display values. Prefer this over custom regex or dictionary lookups when irregular plural forms (person→people, mouse→mice, criterion→criteria) must be handled correctly without maintaining your own word list.

## Known failure modes

- Empty or missing 'word' field returns a validation error
- Word exceeding 256 characters is rejected
- Non-English or unrecognized words may return a best-guess or error
- Network timeout or service unavailability returns a 5xx error
- Invalid JSON body returns a 400 error

## How this service works

Return the plural form of an English word (handles irregulars — person → people, mouse → mice).

## Output

Returns the correctly pluralized English form of the input word, handling both regular pluralization rules and irregular forms (e.g. person→people, mouse→mice, criterion→criteria).

## Request schema (JSON Schema)

```json
{
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "type": "object",
 "properties": {
  "input": {
   "type": "object",
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "type": "string",
     "enum": [
      "POST"
     ]
    },
    "bodyType": {
     "type": "string",
     "enum": [
      "json",
      "form-data",
      "text"
     ]
    },
    "body": {
     "type": "object",
     "properties": {
      "word": {
       "type": "string",
       "minLength": 1,
       "maxLength": 256,
       "description": "The word to pluralize."
      }
     },
     "required": [
      "word"
     ],
     "additionalProperties": false
    }
   },
   "required": [
    "type",
    "method",
    "bodyType",
    "body"
   ],
   "additionalProperties": false
  }
 },
 "required": [
  "input"
 ]
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/inflect-openverbs-com-pluralize-1d1346cc/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)