Discover / saylorinnovations.com

Saylor Innovations Library Docs

■ Challenge detected

Current library docs for an npm, PyPI, crates, Go or GitHub package - README sections, version, license and install

Listed price
$0.01
Challenge detected
8 of the last 11 checks
Median response
276 ms
Last checked
18 Oct, 09:23 UTC
In our index since
26 Sept 2026

Endpoint

curl -i https://saylorinnovations.com/api/docs/npm/zod
# 402 Payment Required: pay with an x402 client (USDC on Arbitrum),
# then send the same request again with the payment attached.
1,041 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://saylorinnovations.com/api

  • GET/physics/papers$0.01Physics paper search on INSPIRE-HEP - title, authors, citation count, arXiv id and DOI for high energy physics and astrophysics literature
  • GET/geo/pluscode$0.01Convert coordinates to an Open Location Code plus code with the short-code hint, or decode a full plus code into its cell centre and size
  • GET/sports/pace$0.01Running pace and speed calculator from distance and time - per kilometer and per mile
  • GET/docs/pypi/fastapi$0.01PyPI package documentation - README, version, license, install command and table of contents
  • GET/ecommerce/fees/:platform$0.01Marketplace and payment processor fee schedule - Amazon, eBay, Etsy, Shopify, Stripe fees as percent and fixed rates, with optional per-sale seller net
  • GET/data/economy$0.01Recent annual population, GDP and inflation observations for a country, with units and sources
  • GET/fun/coinflip$0.01Coin flip - returns result heads or tails from a cryptographically secure random source, with a fairness flag and the entropy source name
  • GET/geocode/us-census$0.01US street address geocoder from the Census Bureau - matched address, lat/lon, state and county FIPS, census tract, block and congressional district
  • GET/kb/systemd-failure$0.01Systemd failure resolver - service identity, environment, dependencies, restart limits and rollback
  • GET/price/:mint$0.01Solana token price in USD with liquidity from two sources (DexScreener and Jupiter) and the spread between them
  • GET/kb/sow-acceptance-matrix$0.01Statement of work and acceptance matrix - deliverables, tests, milestones and change process
  • GET/util/convert$0.01Unit conversion across length, mass, volume, speed, data, energy, pressure and temperature
  • GET/kb/how-flash-loans-smart-contracts-can-be-profitableNo price listedHow Flash Loans & Smart Contracts Can Be Profitable — On-chain & DeFi
  • GET/kb/local-private-ai$0.01Local private AI on Ubuntu - privacy boundary, VRAM and RAM sizing, and securing retrieval and plugins
  • GET/kb/vendor-api-dependency-risk$0.01Vendor and API dependency risk - criticality, data flow, failure tests and exit plan
  • GET/transit/philadelphia/arrivals$0.01Philadelphia SEPTA Regional Rail real-time arrivals for a station - line, destination, status and track
  • GET/birds/recent$0.01Recent bird occurrence records near any point - species, time, location and distance (GBIF)
  • GET/evm/optimism/transfers/:address$0.01Optimism ERC-20 token transfer history - decoded Transfer events, filterable to one wallet
  • GET/geocode/switzerland$0.01Swiss address and place geocoder from swisstopo - WGS84 latitude and longitude plus LV95 east/north coordinates for any address, place or postcode
  • GET/algorand/account$0.01Algorand account lookup - ALGO balance, minimum and spendable balance, online status, pending rewards, assets and apps opted in and created
  • GET/evm/optimism/call/:address$0.01Optimism read-only contract call (eth_call) - return data, with reverts reported cleanly
  • GET/net/threat-feeds$0.01Check an IP against the Feodo Tracker botnet C2 list, Emerging Threats compromised hosts and the Tor exit list with a combined verdict and matches
  • GET/kb/knowledge-freshness-deletion$0.01Knowledge freshness, correction and deletion - what was known when, with stale-result reporting
  • GET/news/devto$0.01Top DEV Community articles by tag and time window - title, author, reactions, comments, reading time, tags and URL for ai, javascript, webdev, python and more
  • GET/sports/f1/latest-session$0.01Latest Formula 1 session from OpenF1 - circuit, session type and time, the 22 drivers with teams, the running order or final classification and the podium

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

Showing 25 of 1,041 listed endpoints. Next endpoints First endpoints

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

Recent checks

29 Sept 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.18 Oct 2026
All 11 checks
When (UTC)ResultHTTPResponse
18 Oct, 09:23 UTCChallenge detected402277ms
17 Oct, 07:50 UTCChallenge detected402568ms
15 Oct, 23:42 UTCChallenge detected402660ms
14 Oct, 19:26 UTCChallenge detected402529ms
12 Oct, 22:31 UTCChallenge detected402173ms
11 Oct, 00:15 UTCNo challenge detected400276ms
9 Oct, 18:38 UTCChallenge detected402240ms
8 Oct, 15:35 UTCChallenge detected402275ms
7 Oct, 15:42 UTCChallenge detected402212ms
6 Oct, 15:31 UTCNo challenge detected400282ms
29 Sept, 05:02 UTCNo challenge detected400192ms

Questions

Did our last probe detect a payment challenge?

At our last probe on 18 Oct, 09:23 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 Saylor Innovations Library Docs?

Its listed price is $0.01.

What payment terms does Saylor Innovations Library Docs advertise?

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

Where is Saylor Innovations Library Docs listed?

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

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