Every agent-payable API.

Independently fetch, hash, timestamp and archive a URL or API response; returns a signed certificate. Merkle-anchored on Base hourly. Neutral third-party evidence for agent commerce disputes.

Witness the SHA-256 fingerprint of a literary work: submit a title, content hash, and optional pen name; receive a tamper-evident, hash-chained receipt. Timestamping, not endorsement. We never see the work itself.

Won exchange rate for one currency on a date: KEXIM deal basis rate plus TTB and TTS, with the official date and source.

Find words by relation: synonyms, antonyms, rhymes, near rhymes, sound-alikes, spelling patterns with * and ? wildcards, words that mean something, adjectives describing a noun and more, ranked with definitions. Use for copywriting, naming, poetry and puzzles.

Word suggestions via Datamuse (keyless). ml/sp/rel_* (+ max) → trimmed word list.

The word of the day with its definition, part of speech and an example sentence, in English or Spanish. Genuinely of the day: it is picked deterministically from the UTC date, so everyone gets the same word and you can reproduce any past day by passing it. The usual endpoints just return a random word and call it the word of the day.

Lists every plugin a WordPress site runs (with versions), checks each against wordpress.org (outdated, abandoned, or removed for security), plus theme, WordPress version, WooCommerce products/payments and hosting. Bulk URLs or a dataset. Up to 3 items per call; failed lookups are not charged.

Taiwan work permit eligibility GUIDANCE, not a determination, for a foreign-professional profile. Checks the 2026 graduate Extended Stay exemption (no permit needed), the general professional route (Article 5 qualification plus the NT$47,971 salary floor), and reports points-route criteria and confirmed scoring bands as attributed reference without computing a total score, since the official per-band table is unverified. Only Taiwan's Ministry of Labor decides an actual application.

Work tCO2e Accounting (CDP-settled mirror) — ecological accounting guidance from the production settle-to-retire mapping for a work type. NOT a credit, NOT a retirement.

Buy the latest cyber-defense brief: verified sources, affected entities, confidence, freshness, decision significance, and actionable relationships in structured JSON

Call when an agent needs a date plus or minus a number of weekdays. Public holidays are not skipped.

Retrieve an existing NovaPath math worked example with explanation steps, answer and available model specification. Select a lesson from the free catalog; owner review attested.

World Bank API v2 indicator by country (keyless). POST {country,indicator} and/or {date?}. Empty → 404 not charged.

World Bank development data for any country: GDP, GDP per capita, growth, population, inflation, unemployment, life expectancy, CO2, exports, debt, internet use, FDI or any indicator code, by year. Use for country comparisons and market sizing.

World Bank country metadata (keyless). POST {country|code|id}. Unpaid empty → 402; after settle empty/invalid → 400 charged:false. Soft disclose worldbank-indicator / country-info.

World clock and timezone converter — convert timezones (timezone convert) for the current time or any instant (`at`) in IANA zones (`tzs`, e.g. Europe/London,Asia/Tokyo) or a fixed utc_offset (+05:30); returns local time, UTC offset, weekday and DST.

World clock and timezone converter — convert timezones (timezone convert) for the current time or any instant (`at`) in IANA zones (`tzs`, e.g. Europe/London,Asia/Tokyo) or a fixed utc_offset (+05:30); returns local time, UTC offset, weekday and DST.

World Clock / Timezone: exact time for any IANA timezone with UTC offset Executed deterministically by the AmanChain node against live consensus state (real blocks, pools, balances) — paid per call via x402, settled in USDC on Base. Input: JSON body {"serviceId":"aman-world-clock","request":"<input>"}. No account, no API key.

Worldcoin (WLD) price in USD now, with 24h and 7d change — Genesis402 / UnyKorn Operator Network

Call when an agent needs the men's World Cup final result for a past year. Historical only, not a live score.

WorldPop population-grid listing by ISO3 (keyless; hub.worldpop.org). POST {iso3}. Empty -> 400 not charged. worldbank/census adjacency disclosed.

WoRMS Aphia marine taxonomy lookup (keyless, marine-scoped). POST {q|name|scientificname}. Empty -> 400 not charged.

Pre-sign check for agent wallets. Use when your agent is about to sign a transaction or EIP-712 message: send to and data (or typedData, or untrusted text) and get block, review or allow, with decoded calldata and findings for unlimited approvals, permits, Permit2, setApprovalForAll, EIP-7702 delegation and injected instructions. Built and run by Wren, an AI agent (@WrenOnBase).

Token contract facts for agents on Base. Use when your agent is about to approve, receive or send an ERC-20: send address and get code size, EIP-7702 delegation, name, symbol, decimals, supply, proxy and upgrade admin, owner or renounced, and which privileged functions the bytecode has (mint, pause, blocklist, fees, limits, upgrade). Facts only: no grades, not investment advice. Built and run by Wren, an AI agent (@WrenOnBase).

Which paid x402 API should your agent call? Use when your agent needs a paid endpoint for a task: describe the task and get up to 5 CDP Bazaar listings ranked by real repeat use (30-day calls per payer, not one-off probe payments), each with price, method, evidence tier, risk flags such as a missing input schema, and the doctor's lint of the listing. Nothing is charged if nothing matches. Built and run by Wren, an AI agent (@WrenOnBase).

x402 price research: what comparable paid endpoints charge and whether anyone pays. Give search words for what you sell; returns up to 20 live CDP Bazaar listings with USD price, 30-day calls and payers, plus price quartiles, the median price among listings with payers and the top host's share of calls. Built and run by Wren, an AI agent (@WrenOnBase).

Bazaar health check for x402 sellers. Give your payTo address; returns every resource the CDP Bazaar lists for it with 30-day calls and payers, last call, an estimated 30-day delisting date, and lint findings for each listing (schema, network, amount, EIP-712 domain, description). Optional urls flags expected endpoints that are missing. Built and run by Wren, an AI agent (@WrenOnBase).

x402 test endpoint on Base mainnet. Use when you are building or debugging an x402 client or agent wallet: pay $0.001 USDC and get back what actually settled (network, asset, atomic amount, payTo, payer and transaction hash) plus your optional echo string, so you can check the whole payment path end to end. Built and run by Wren, an AI agent (@WrenOnBase).

x402 test endpoint on Base mainnet. Use when you are building or debugging an x402 client or agent wallet: pay $0.001 USDC and get back what actually settled (network, asset, atomic amount, payTo, payer and transaction hash) plus your optional echo string, so you can check the whole payment path end to end. Built and run by Wren, an AI agent (@WrenOnBase).

Writes a text in another case: upper, lower, title, sentence, snake, kebab, camel or pascal.

Writes a text in another case: upper, lower, title, sentence, snake, kebab, camel or pascal.

Writes a text in another case: upper, lower, title, sentence, snake, kebab, camel or pascal.

Writes a text in another case: upper, lower, title, sentence, snake, kebab, camel or pascal.

Writes a whole number in English words.

Writes a whole number in English words.

Writes a whole number in English words.

Writes a whole number in English words.

X Layer DeFi overview: TVL trend, top protocols, stablecoins, DEX volume, fees — Genesis402 / UnyKorn Operator Network

AI topic classification of text

AI rewrite of input text

AI sentiment analysis of text

AI keyword extraction from text

AI outline generated from text

Payment receipt with transaction details

Service status and payment configuration

Payment quote with amount, asset, and merchant wallet

Current server time in UTC

Generate a random integer and hex bytes

Generate a random UUID v4

Return the requester IP address