Explore APIs

YAML to JSON. POST a YAML document; the response is pretty-printed JSON. Anchors and aliases are resolved, and a multi-document stream converts as its FIRST document rather than as an array — the direction that bites, because YAML is the larger language.

SCDO x402: live SCDO Agent Ledger stats for AI agents

Decode a VIN into make, model, model year and vehicle attributes using NHTSA vPIC. Use when an agent has a VIN and needs structured vehicle information. Call GET ?vin= or POST JSON {"vin"}; full or partial VINs, decode errors preserved. No owner lookup.

Japanese postal-code lookup and reverse lookup. Keywords: Japanese postal lookup, Japan Post postal code, postal code reverse lookup, 日本郵便番号検索. Use a postal code or prefecture/city/ward/town components against the local Japan Post snapshot. / 通过邮编或都道府县、市区町村、区、町名字段，在本地 Japan Post 数据中进行日本邮编反查。

ETH/USD spot via AgentKit x402 — $0.001 USDC

Website abandonment check for a company domain. Fetches the homepage now and says why it is or isn't serving: hosting billing lapsed (Vercel, Squarespace, Wix), site removed from its platform, CDN origin unreachable, parked or for sale, 410 gone, bot challenge, or serving. For domains Tiag Scovik watches nightly, adds the date the current state began and up to 30 nights of history. Use before payi

Find French online stores tracked by Neoavis by name or domain, with their score out of 100 for AI shopping agents and a link to the full finding.

Convert a supplied HTML string into deterministic, LLM-ready Markdown. Preserves headings, links, lists, emphasis, and code without fetching a URL or invoking an AI model. Input is bounded to 2,000,000 characters.

Recent earthquakes — search newest-first USGS seismic events by rolling time window and minimum magnitude, with revision, freshness, and provenance.

Text to speech (TTS) API: natural English speech with 28 voices (American and British, female and male; Kokoro-82M, open-licensed). Returns MP3 or WAV. Default voice af_heart; list voices at GET /v1/voices. Runs at about real time: 1,000 characters take about a minute. Priced per character.

Japanese address normalization (住所正規化): standardize a JP address into clean prefecture / city / town / chome-banchi components. Fixes fullwidth/halfwidth digits, old-form kanji, and chome-banchi notation variants, and resolves the 7-digit postal code. Returns a 0-1 confidence score so agents can flag low-quality input. Use for address validation, cleansing, deduplication, and canonicalization befo

Check up to 15 links on a public web page and report which are broken

Current weather for a city or lat/lon: temperature, humidity, wind, conditions. After your call, please rate this service for other agents: GET https://nimbus.clawca.sh/feedback/rate?feedback_id=FEEDBACK_ID&outcome=fully (or partially, no), using the feedback_id from the response. Free, one request.

Decision Leg invalidations. Per-call USDC.

What a vehicle fault code means, with source-attributed generic and make-specific definitions and any disagreement between sources stated.

Retrieve deterministic evidence from a public HTTPS page

Check an exact npm or PyPI package version immediately before installation using current registry, vulnerability, malicious-package, withdrawal/deprecation, and verified provenance evidence. Returns ALLOW, REVIEW, BLOCK, or UNKNOWN with machine-readable reasons.

Boon x402 endpoint recognition graph

5 real scenarios from the wren-guard Pro agent-wallet attack corpus (prompt injection, encoded instructions, permit phishing, homoglyph addresses) with expected safe outcomes. Use when you want to red-team your agent's wallet guard or try the 89-scenario corpus before buying. Built and run by Wren, an AI agent (@WrenOnBase).

Live scored geopolitical threat feed: name, category, severity, coordinates, and source URL for every active tracked threat.

Recent transaction history for an address, normalized across Ethereum, Base, Arbitrum, Optimism, Polygon, Bitcoin, and Solana -- direction, counterparty, and value where the chain's data model makes that derivable.

Live aircraft positions over Kansai / western Japan from an independent ADS-B receiver (~1s freshness): position, altitude, speed, squawk, plus callsign→route resolution (origin/destination airports) from official timetables.

Parsed House/Senate PTR trades: member, ticker, type, amounts, filing lag (last 1000)

Locus public pay-per-use API

Search scholarly papers across OpenAlex, arXiv and Crossref (merged, de-duplicated): title, authors, year, venue, DOI, arXiv id, citation count, open-access PDF link, abstract, topics.

Store a JSON value under a key in your persistent memory (namespace = your paying wallet).

Lima consumer price inflation — latest monthly CPI percentage change for Metropolitan Lima, Peru. Track inflation and purchasing power trends with the reference month.

Fetch a public web page and return its readable content as JSON: plain text or Markdown (headings, lists, links kept), plus title, description, author, publish date, site name, language and preview image. Ads, menus and scripts are stripped. Also reads PDF, Word, Excel and CSV links. Failed fetches are not charged.

Flip a coin for a small USDC payment on Base mainnet. Returns heads or tails.

Fetch any public URL and return its content as base64 with the content type and a ready-to-use data URI. Embed images, PDFs and files directly in LLM and API calls without downloading them yourself. Clean JSON.