Explore APIs

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.

switch402 PDF to text: a public PDF URL in, its text page by page out (up to 50 pages, 10 MB). Charged only when text comes back.

OpenAI-compatible chat completion. Pay per request in USDC via x402: no signup, no API keys. Price scales with prompt size and max_tokens.

real-time cryptocurrency price snapshot with usd prices from the ftso yggdrassil value provider

Is this Base token safe to buy? One call returns a decision-grade trade-safety verdict — SAFE | CAUTION | AVOID — with risk_score (0-100) and reasons: honeypot/sellability simulation, owner-renounced + mint/pause/blacklist/fee-setter/upgradeable-proxy checks, symbol/name/decimals, and Uniswap v3 WETH-pool liquidity (USD). Replaces many RPC calls and prevents a bad trade. Use when an agent is about

Detailed profile for a single AI agent (by chain + agentId)

Recent material public-source changes for tracked Bitcoin services.

Macro dashboard in one call: 13w/5y/10y/30y Treasury yields, dollar index, gold, WTI crude, VIX. JSON.

Base gas price — Live Base mainnet gas price from JSON-RPC.

Check whether a smart contract's source code is verified on Sourcify, the open verification registry, by chain id (Base is 8453, Ethereum 1) and address, with the date it was verified. A contract not on Sourcify fails; it may still be verified elsewhere, so a fail means "not verified on Sourcify", nothing stronger.

Fetch any public URL and return a clean, readable markdown or JSON extract for AI agents. Pass the target as ?url=<encoded>. Ideal when you need to read webpages, docs, or articles without a browser. Blocks script/style tags, normalizes links and images, strips HTML.

Fetch a URL and extract clean main-content text with title, description, word count, and char count; boilerplate (nav/footer/sidebar/ads) is stripped.

Live spot price and 24h change for a crypto token symbol.

Expiring, pending-delete and just-dropped domains with backlink authority (Majestic referring subnets), Wayback archive history and brandability score. Registrable with USDC at stabledomains.net.

Full-history address-poisoning check before you send USDC on Base. Same risk/lookalike/seenBefore logic as /address/check, but funding history comes from ONE Blockscout index call (x402, up to the sender's 500 most recent Base USDC transfers; v2 page fallback) so coverage is usually the sender's full Base USDC history. Body {from, to}. Not charged if the index is down. Cheap partial/RPC tier: POST

0.001 USDC on base

Check whether an approved Base token swap is eligible before supplying a wallet. Returns verified token contracts, indicative output, liquidity sources, fee estimate, warnings, and the exact next action. No custody, signing, or execution.