What are agents buying on x402? A weekly x402 market data and demand report from Bazaar discovery and Base settlements: repeat-use demand by category, demand gaps, movers, price bands and GET vs POST traction, adjusted for sweeps, with cited sources. Use when an agent needs x402 demand by category before choosing what to build or how to price it.

Use when an agent is about to buy, accept or list a Solana token. Input: mint. Output: JSON riskLevel and rule-based signals with evidence (mint or freeze authority not renounced, permanent delegate, transfer hook, transfer fee, default-frozen accounts, mutable metadata), top-10 holder concentration with owners. Curated issuer stablecoins are marked as expected controls. Not an audit. Example: ?mint=EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v

Bitcoin stocks earnings calendar: results dates and SEC 10-Q/10-K windows for MSTR, MARA, COIN, Metaplanet and other listed bitcoin companies, sourced, with outcome. Not investment advice.

Crypto token risk brief: price action, liquidity, supply dilution, and red flags, summarized in plain English.

Dragons Eye Lookup: Ransomware leak-site claim lookup by company name or domain. Returns ransomware-group claims (group, dates, country, sector, sources) matching the company or domain. Unverified claims from criminal leak sites; commercially reusable sources only.

Call when you need a cheap reachability/health check before a heavier fetch. Probes a public http(s) URL (HEAD, GET fallback): status, final URL, content-type, timing. No full body download (GET peeks ≤8KB). SSRF-safe public hosts only. Not for authenticated or private network URLs.

Screens one text for prompt-injection patterns in English (instruction override, role or system-prompt extraction, jailbreak personas, hidden or encoded instructions) using a fixed rule list based on OWASP LLM01 categories. Returns HIGH/MEDIUM/LOW/NONE, each match, and the text with matches removed. A rule list misses rewording and other languages: treat NONE as no known pattern, not as safe.

Call before paying an unfamiliar x402 endpoint, or to pick between providers. $0.02, usually <1 s plus one probe: live unpaid probe (status, latency, TLS, PAYMENT-REQUIRED decoded and sanity-checked), seller reputation from indexed on-chain USDC payments to its Base payTo (24 h/7 d count, distinct payers, total and median USD, top-payer share), Bazaar listing and price, and a looks legit/caution/avoid verdict citing each fact. Errors: 400/503 JSON {error}, not charged.

Research cards from KARP, SoulDriver's multi-model research engine: GPT, Gemini, Grok and Claude debate a topic over many rounds and publish a conclusion. Each card gives the conclusion, key insight, warnings, dated figures, consensus status, open questions, research date and staleness. See what is covered first with the free POST /v1/coverage; verify time-sensitive points with POST /v1/check. Catalogue: GET /. ~15 s.

SCDO x402: live SCDO Agent Ledger stats for AI agents

Read paid Subnano research and analysis as JSON with Markdown content.

Track record of a StonkFun creator (pass the wallet, or a coin mint to find who launched it): ESTABLISHED / MIXED / SERIAL_LAUNCHER / NEW, launches in 24h / 7d / all-time, share of coins older than 3 days still trading, payouts in 24h, living coins with market cap. Baseline: 19% of one-time creators' coins vs 5% of serial launchers' still trade after 3 days.

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 /address/check ($0.001).

Generate scannable QR codes from any text, URL, or structured payload (WiFi, vCard, SMS, email, geo, crypto). Returns PNG by default with JPG, WebP, and SVG output, plus optional error-correction, sizing, color, version, and encoding controls. Simple cURL POST: send qr_data, receive an image.

LinkedIn Company Page Data: one LinkedIn company page by URL or page name: name, description, industry, size, employee count, headquarters, website, founding year, type, specialties and logo link, plus its recent posts (posts=1 adds the post feed with next_cursor). Company pages only, personal profiles are refused for free. B2B research. Bad input is free; not found or no match is not charged.

Reddit Post Comments: one Reddit post by id or URL with its comment thread (up to 3 reply levels, deleted and removed comments left out). Per comment the text, author, upvotes, parent, subreddit, time and permalink in the shared social schema; next_cursor gives more comments. Bad input is free; not found or no match is not charged.

YouTube Video Comments: the public comments on one YouTube video by id or URL. Per comment the text, author channel handle, verification, likes, reply count, time and link in the shared social schema; next_cursor gives the next page. Audience feedback and sentiment research. Bad input is free; not found or no match is not charged.

Bluesky Posts & Search: find public Bluesky posts by keyword, phrase, hashtag or from:handle through the AT Protocol AppView, newest first. Per post the text, author handle and display name, likes, replies, reposts, language, media links, time and URL, in one schema shared by every platform; next_cursor gives the next page. Social listening on Bluesky for brands, products and topics. Bad input is free; not found or no match is not charged.

Bluesky Profile Lookup: one public Bluesky account by handle, DID or bsky.app URL: display name, bio, follower, following and post counts, verification, avatar link, creation time and DID, in the shared social schema. Bad input is free; not found or no match is not charged.

Extract structured data from a URL or raw text into strict JSON matching a schema you provide. Fields the content doesn't support come back null - never an invented or approximate value, and an unmatchable schema returns an explicit error. Try GET /extract/sample. Part of the AgentIndex content kit (pdf, web-read, extract, summarize, detect-language) - see GET /capabilities.