# Agent Data Tools: English Dictionary Lookup

> Agent Data Tools: English Dictionary Lookup is a paid API for AI agents from agent-data-tools.revmesh2074.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-30).

Returns definitions, parts of speech, and usage examples for an English word sourced from Wiktionary

## Facts

- Endpoint: GET https://agent-data-tools.revmesh2074.workers.dev/dictionary?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-30
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agent-data-tools-english-dictionary-lookup-a9622776
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_nBuW-9lN3N32jgbYf54Ua

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 agent-data-tools-english-dictionary-lookup-a9622776
```

Example prompt: What does the word 'serendipity' mean? Look it up in the dictionary and give me its definition, part of speech, and an example sentence.

## When to prefer this

Choose this endpoint when an AI agent needs a structured, machine-readable English dictionary lookup with part-of-speech classification and usage examples, especially in a pay-per-call micropayment context requiring no API key setup. Prefer over web scraping when clean, attributed lexical data with licence metadata is required.

## Known failure modes

- Word not found in Wiktionary returns empty meanings array or error
- Misspelled input word may return no results
- Very rare or highly technical words may have incomplete definitions
- Network timeout from the upstream Wiktionary source

## How this service works

Dictionary definition of an English word from Wiktionary, grouped by part of speech, with example sentences where Wiktionary gives them, plus the page link and the CC BY-SA attribution to show. Use for writing help, vocabulary, translation checks and word games.

## Output

A JSON object containing the queried word, a Wiktionary URL, a CC BY-SA 4.0 licence notice, an attribution string, and an array of meanings each with a part-of-speech label and one or more definitions (each optionally accompanied by an example sentence).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "word"
 ],
 "properties": {
  "word": {
   "type": "string",
   "description": "An English word"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "url": {
   "type": "string"
  },
  "word": {
   "type": "string"
  },
  "licence": {
   "type": "string"
  },
  "meanings": {
   "type": "array",
   "items": {
    "type": "object",
    "properties": {
     "definitions": {
      "type": "array",
      "items": {
       "type": "object",
       "properties": {
        "example": {},
        "definition": {
         "type": "string"
        }
       }
      }
     },
     "partOfSpeech": {
      "type": "string"
     }
    }
   }
  },
  "attribution": {
   "type": "string"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agent-data-tools-english-dictionary-lookup-a9622776/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agent-data-tools.revmesh2074.workers.dev](https://www.zero.xyz/host/agent-data-tools.revmesh2074.workers.dev/llms.txt)