Discover / api.maxwellinternational.ai

Maxwell x402

■ Challenge detected

x402 Doctor checkup of any x402 endpoint, without buying: whether it answers with a valid payment request, its x402 version and any problems in it, the prices and networks it asks for, its payTo wallets and response time.

Listed price
$0.002
Challenge detected
9 of the last 9 checks
Median response
376 ms
Last checked
16 Oct, 13:59 UTC
In our index since
26 Sept 2026

Endpoint

curl -i https://api.maxwellinternational.ai/v1/doctor/checkup
# 402 Payment Required: pay with an x402 client (USDC on Base),
# then send the same request again with the payment attached.
84 listed endpoints · on x402 Bazaar

Checks and payment terms on this page refer to the endpoint above. Other listed endpoints have not been checked individually.

Base URLhttps://api.maxwellinternational.ai/v1

  • GET/gov/jp/open-data$0.005Search the national open data portal of Japan (the e-Gov data portal) by keyword, or fetch one dataset by id: title, publishing organization, last modified date where the portal gives one, number of files and the official link, under the portal's licence terms (a dataset's own licence is on its official page). Uncached: 404, not charged, fetched within about a minute.
  • GET/trip/bundle$0.08Ski trip planner in one call: every Trip Wizard step with data at one resort (getting there, lift tickets, rental, snow conditions, where to eat, apres-ski, things to do, places to stay) that this trip has not bought yet, at 60% of the separate prices (about $0.08 for a full resort; quoted per request). Pass trip=<tripId> so steps already bought are left out.
  • GET/insider-info$1Local insider tips for ski and mountain travel from people on the ground, each with its resort, country and date (e.g. early glacier snowpark openings). One payment returns every current tip; ?id=<tip-id> returns one. Tips are in the local language (currently Slovak), plain text.
  • GET/trip/rental$0.01Ski rental, ski shops and ski schools at a ski resort: where to rent skis and snowboards, rental shops first, each with its nearest lift base and distance, address, phone, website, hours and, where published, rental and lesson prices. Each answer repeats the trip map with the next step and bundle price.
  • GET/ski/prices-bulk$0.25Every lift-ticket and season-pass price on file for one country in one answer (US: per state), the same rows /v1/ski/prices sells per resort, with source page and read date. Filters: region, ticketType, ageBand, dateFrom/dateTo. Up to 5000 rows; larger answers ask you to narrow, not charged.
  • GET/weather/forecast-hourly$0.005NWS hourly forecast (about 7 days) for a US point or grid. From the NWS (US and territories), cached and refreshed about every 3 hours; a location not yet cached answers 404, is not charged, and is queued.
  • GET/nvd/cve$0.005NVD (National Vulnerability Database) CVE record by id, or search by keyword in recent CVEs: description, severity and CVSS base score, status, published and last-modified dates, and whether it is on CISA's Known Exploited list. Cached; records refreshed within about 48 hours.
  • GET/x402/endpoint/check$0.002Checks one http(s) URL without paying it: whether it returns a valid x402 payment challenge, its USDC price against the median of its category, the payTo wallets and their USDC received in the last 30 days where our collector has them, and our own probe history (uptime since first seen). Signals with sources; a factual report, not a safety verdict.
  • GET/edgar/financials$0.005Compact financial statements from SEC XBRL company facts: about 40 standard us-gaap and dei line items (revenue, net income, EPS, cash, debt, shares...), one value per calendar period, last 10 years and 12 quarters, fiscal Q4 derived. A tag a company stopped using ends in that year.
  • GET/market/quotes$0.005Bundle of all cached live crypto quotes from the market scraper.
  • GET/gov/sk/companies$0.005Slovak companies from the register of legal entities (RPO, Statistical Office). By id (ICO): one company with current and former names, legal form, status, address, founding and end dates, main activity, register court and file number, share capital and business scope. By name (q=): matching companies with name, legal form, status, address and founding date; open one by id for the rest. No persons. Uncached: 404, not charged.
  • GET/gov/at/legislation$0.005Laws of Austria from RIS (Rechtsinformationssystem): search by title, or fetch one act by its official id, with title, in-force status, dates and the official link. An id or search not yet cached answers 404, not charged, and is fetched within about a minute.
  • GET/trip/bars$0.01Apres-ski bars and nightlife near a ski resort: bars, pubs, nightclubs and beer gardens within 15 km of the resort's arrival point, nearest first, with opening hours, phone and website as published. Each answer repeats the trip map with the next step and bundle price. No Google data.
  • GET/gov/pl/companies$0.005Companies in Poland's KRS entrepreneurs register: search by name (our own index of the register) or fetch one by KRS number. Registered name, status, legal form, registered address, NIP/REGON and a link to the official register. Company-level facts only; no directors or shareholders. A name with no match, or an uncached number: 404, not charged.
  • GET/weather/forecast$0.005NWS daily/period forecast (about 7 days, day and night periods) for a US point or grid. From the NWS (US and territories), cached and refreshed about every 3 hours; a location not yet cached answers 404, is not charged, and is queued.
  • GET/openfda/drug/label$0.005FDA drug labels (package inserts) by brand or generic name from openFDA, newest label first: brand, generic name, manufacturer, indications and usage, warnings, label date. ?q=ibuprofen; 5 labels by default, up to 25 with &limit=. Answers are cached for up to 24 hours. Not medical advice.
  • GET/ski/quote$0.01Price of one lift ticket or ski pass: the published price for one resort, ticket type (day, multi-day, half-day, season) and age band (adult, child, youth, senior), with its source page and the date it was read. Cheapest way to answer "how much is a day pass". 404, not charged, when that combination is not on file.
  • GET/gov/jp/legislation$0.005Laws of Japan from the e-Gov law API: search by title, or fetch one act by its official id, with title, in-force status, dates and the official link. An id or search not yet cached answers 404, not charged, and is fetched within about a minute.
  • GET/gov/ch/open-data$0.005Search the national open data portal of Switzerland (opendata.swiss) by keyword, or fetch one dataset by id: title, publishing organization, last modified date where the portal gives one, number of files and the official link, under the portal's licence terms (a dataset's own licence is on its official page). Uncached: 404, not charged, fetched within about a minute.
  • POST/llm/chat$0.006546AI assistant from the Maxwell International LLM service (model maxwell-chat), OpenAI-style chat completion: POST {model, messages, max_tokens}. Priced before it runs: prompt tokens (yours plus ~860 of service instructions) x $1.50/M + max_tokens x $3.00/M + $0.005; max_tokens is your spend limit (short question, max_tokens 80: about $0.0066). Text only. Free model list: GET /v1/llm/models.
  • GET/ski/resort$0.01Ski resort info card: operator, region, official site, ticket shop and price-list links, which lift-ticket types and age bands have prices on file, currency, date span and when prices were read. No price amounts (those are /v1/ski/prices). Resort ids from /v1/ski/coverage.
  • GET/gov/us/legislation$0.005US federal regulations from the eCFR (Code of Federal Regulations, not statutes; not an official legal edition): search by title, or fetch one section by its id, with title, status, dates and the official link. Uncached: 404, not charged, fetched within about a minute.
  • GET/doctor/blocked$0.005x402 Doctor for a block you hit (e.g. 403): we request the seller ourselves and say whether the block is on your path (IP, region, bot wall) or on the seller side, with what each of us saw. We never buy around a block.
  • GET/gov/ca/companies$0.005One Canadian federal corporation from Corporations Canada open data, by corporation number or 9-digit business number: status, governing act, current and former names, registered office. Lookup by number only; name search is not available.
  • GET/courts/search$0.005US court opinion search on CourtListener (Free Law Project): case name, court, date filed, docket number and the opinion link. Short queries match as a phrase (?q=fair use), longer ones need every word. Cached; a query not yet cached is fetched live.

A dash means the listing gives no price or method. Copy buttons copy the full URL.

Showing 25 of 84 listed endpoints. Next endpoints

Agents can find it through the Superstables MCP server and JSON API: GET /api/v1/services/api.maxwellinternational.ai

Recent checks

2 Oct 2026One bar per check, showing up to 20 recent checks. Coloured bars show relative response time, with a minimum visible height; full-height grey bars mean no challenge was detected. “Challenge detected” means HTTP 402 or another detected payment-challenge signal.16 Oct 2026
All 9 checks
When (UTC)ResultHTTPResponse
16 Oct, 13:59 UTCChallenge detected402347ms
15 Oct, 04:47 UTCChallenge detected402346ms
13 Oct, 20:45 UTCChallenge detected402363ms
11 Oct, 19:34 UTCChallenge detected402486ms
10 Oct, 03:32 UTCChallenge detected402378ms
8 Oct, 21:32 UTCChallenge detected402428ms
7 Oct, 21:31 UTCChallenge detected402376ms
6 Oct, 21:30 UTCChallenge detected402392ms
2 Oct, 17:03 UTCChallenge detected402350ms

Questions

Did our last probe detect a payment challenge?

At our last probe on 16 Oct, 13:59 UTC, it returned HTTP 402 or another detected payment-challenge signal. This check did not test payment, delivery or compatibility with the Superstables client.

What price is recorded for Maxwell x402?

Its listed price is $0.002.

What payment terms does Maxwell x402 advertise?

The listing advertises x402, Base, Solana and USDC. It names cdp as its facilitator. Check the seller's current payment challenge and authentication requirements before paying.

Where is Maxwell x402 listed?

In x402 Bazaar and x402-list.com. Superstables first indexed it on 26 Sept 2026.

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