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WorldData402 Dictionary Lookup
x402
WorldData402 Dictionary Lookup is a paid API for AI agents from worlddata402.worlddata402.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-19).
Returns dictionary definition and linguistic data for a given English word via pay-per-call x402 micropayment.
Price / call$0.01
Success—
StatusUnknown
How this service works
Global market, government and reference data for AI agents. Pay-per-call over x402 (USDC on Base mainnet).
Output
Returns a dictionary entry for the specified word, including its definition(s), part of speech, and possibly usage examples or linguistic metadata, paid per call via USDC on Base mainnet through the x402 protocol.
Example use cases
Vocabulary enrichment in content pipeline
“I'm processing a batch of articles and need to look up definitions for uncommon words like 'solipsism' — can you fetch the dictionary entry for it?”
Educational app word lookup
“My student asked what 'perspicacious' means — can you pull up the full dictionary definition for that word?”
AI writing assistant term clarification
“I want to make sure I'm using 'ameliorate' correctly — can you look it up in the dictionary and give me its meaning and part of speech?”
Technical details
Endpoint
POSThttps://worlddata402.worlddata402.workers.dev/v1/dictionary/%7Bword%7D?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need programmatic, pay-per-call dictionary lookups without API key subscriptions, especially in autonomous agent workflows that use the x402 micropayment protocol on Base mainnet. Prefer it over subscription-based dictionary APIs when usage is sporadic and cost-per-call billing is more economical.
Side effects
- Word not found in dictionary — returns 404 or empty result
- Payment failure or insufficient USDC balance — returns 402 payment required
- Invalid or malformed word parameter — returns 400 bad request
- Service unavailable or Cloudflare Worker timeout — returns 503 or 504
Tags
x402
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