# x402-toolbox Thesaurus Synonyms

> x402-toolbox Thesaurus Synonyms is a paid API for AI agents from x402-toolbox.shablony-pro.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-29).

Returns synonyms for a given word or phrase using a deterministic thesaurus lookup, paid per-call via x402 USDC on Base.

## Facts

- Endpoint: GET https://x402-toolbox.shablony-pro.workers.dev/text/thesaurus-synonyms?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-toolbox-thesaurus-synonyms-e359edbd
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_1xkfmQQUhKnSSSIiD2xN-

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 x402-toolbox-thesaurus-synonyms-e359edbd
```

Example prompt: Can you look up synonyms for the word 'meticulous' for me? I need a list of alternative words I can use in my writing.

## When to prefer this

Choose this endpoint when you need a lightweight, pay-per-call thesaurus synonym lookup with no API key or signup required. Ideal for agents that occasionally need vocabulary enrichment without committing to a subscription-based NLP service. Best for simple word-to-synonyms lookups rather than deep semantic similarity or contextual embedding search.

## Known failure modes

- Word not found in thesaurus returns empty synonyms list or error
- Payment failure via x402 returns 402 response before tool executes
- Malformed schema input may return validation error
- Rare or highly technical terms may yield no results
- Network timeout on Cloudflare Worker edge node

## How this service works

309 deterministic pay-per-call tools for AI agents over x402 (USDC, Base). No signup, no API key: the payment is the identity.

## Output

A JSON object with ok:true and paid:true alongside a list of synonyms or related words for the queried term, returned from a deterministic thesaurus source.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "schema": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "paid": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-toolbox-thesaurus-synonyms-e359edbd/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-toolbox.shablony-pro.workers.dev](https://www.zero.xyz/host/x402-toolbox.shablony-pro.workers.dev/llms.txt)