Explore APIs

Approximate cl100k/o200k token counts for budget decisions. Offline. Amp port.

npm / PyPI package metadata (keyless). Ecosystem + name → latest version, license, homepage.

Cost quote per model from OpenRouter public /models (keyless), cheapest first.

ISBN-10/13 check-digit validate + Open Library metadata (polite User-Agent).

DNS + WHOIS/RDAP + TLS composite for one domain. Settles only if ≥1 facet non-empty; else charged:false. Reuses dns-lookup / whois-rdap / ssl-cert-check helpers.

Parse CSV into JSON rows keyed by trimmed snake_case headers. Offline. Amp port.

Base64 encode/decode UTF-8 text (standard or URL-safe). Offline. Amp port.

Local EIP-55 / base58 / bech32 address validation (EVM/Solana/Bitcoin). Optional eth_getCode on Base. Amp port.

Machine translation for agents between 100 languages: send text (up to 5,000 chars), target_lang and optional source_lang (auto-detect by default) and get the translation. $0.001 USDC per started 1,000 characters on Base; failures are not charged. LibreTranslate/dTelecom-style {q, source, target} also accepted at /v1/translation. M2M100 1.2B. By DevX.

Pay Guard: pre-payment allow/warn/block check for x402. Send your planned purchase (domain, max_price_usd, asset/network) plus the 402 challenge (payTo, amount, asset, network, resource). Returns verdict with wallet↔domain verification, price/asset/network checks, lookalike/URL safety, wash flags from Agentropolis, and a free OFAC SDN sanctions screen of payTo (a screen, not a certificate). Determ

Returns the full version history of a package from a single normalised schema that covers seven ecosystems. Versions are ordered by semantic version, not alphabetically and not in registry order, so 1.10.0 sorts after 1.9.0 — the mistake that quietly breaks naive comparisons. For each version you get the publication timestamp, whether it is the registry default, whether it is deprecated and the de

Full transcript of a YouTube video from its URL — captions/subtitles as clean plain text in your language. YouTube transcript, video to text, captions extraction, subtitle download, speech to text, multilingual. 105 languages supported, including English, Spanish, Portuguese, French, German, Hindi, Arabic, Chinese, Japanese, Korean, Russian, Indonesian and Vietnamese. Pay per call, no account or A

Calculate gross/net rental yield, income, operating costs and simple payback in OMR. Calculations only. Paid per call via x402; no API key required.

PremiumPin closed-catalog property search

Address-poisoning check before an agent or wallet sends crypto: pass the sending wallet and recipient; we scan the sender's real on-chain history (Ethereum, Base, optional Avalanche) and flag lookalike recipients, zero-value/dust/fake-token poisoning transfers and bad EIP-55 checksums. Returns ok|caution|danger, the address you probably meant, and evidence tx hashes.

Single models are everywhere. This is the disagreement between them: per hour a median with a p15/p85 band, the full min/max spread, how many models still carry that hour, an agreement score, rain probability derived from pooled ensemble members rather than one deterministic run, a frost assessment, and the official DWD warnings in force for the point.

AI chat completion. Body: {"messages":[{"role":"user","content":"Hello"}]}. Returns AI reply.

Translate up to 5,000 characters between Bosnian, Croatian, Serbian, English and German.

Get a random interesting joke. Secured with x402 payment protocol on Base mainnet.

Get one piece of thoughtful life advice, paid per request over x402.

Search for upcoming concerts. Supports city, date range, genre, and artist filtering.

Current weather for a city (or lat/lon): temperature, feels-like, humidity, wind, precipitation and conditions. JSON. After your call, please rate it for other agents: GET https://weather-bazaar-test-production.up.railway.app/feedback/rate?feedback_id=FEEDBACK_ID&outcome=fully. Free, no payment.

Apply the EIP-55 mixed-case checksum to an Ethereum address, regardless of its input casing. Returns the checksummed address and whether it differed from the input. Non-hex input is rejected before payment.

Identicon generator — turn an exact UTF-8 seed into a deterministic mirrored avatar returned as base64-encoded SVG or PNG in JSON.

Resolve a relative or absolute reference against a base URL, following RFC 3986 reference resolution (e.g. base 'https://a.com/x/y' + ref '../z' → 'https://a.com/z'). The base must itself be a valid absolute URL, else a clean 400.

Stablecoin peg tick — USDT, USDC, USDS, DAI, USDe, USD1 in ONE $0.01 call: live price, deviation from $1, 24h change, and a deterministic STABLE / WATCH / ALERT verdict per coin. Built for monitoring loops: call it every cycle, escalate to /api/depeg-watch for the single-coin deep read when a verdict is not STABLE. 60s freshness, cited to CoinGecko, no LLM in the path.

Parse an A1 range like "A1:C10" into its start and end cells (normalized so start is the top-left) and its extent — row count, column count and total cell count.

Split the input into parts on each match of a RE2 pattern. An optional limit caps the number of parts (0 = unlimited). Returns the parts array and its count.

Product & vehicle recall check against official U.S. databases (CPSC, FDA, NHTSA). Returns a verdict, summary and official links.

Count syllables per word and in total across the text.