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PLEXUS Intelligence API

https://plexus-public-production.up.railway.app/
● healthy general

163 pay-per-call x402 endpoints: US federal regulatory data (EPA, SEC, FEC, OSHA, FDA, CourtListener, Congress.gov, GLEIF, WorldBank, SAM.gov and 15+ more), 12 AI reasoning engines (Tribunal, WHETSTONE, POSTCOG, G-Score, Verify), and 5 composite intelligence products (Company Risk, Political Intel, Supply Chain Risk, Healthcare DDIL, Nonprofit Intel). Base + Solana mainnet. No API keys.

Category
general
Chains
base
Price
$0.0200 USDC / call

Quality grade

How grading works
C+ 53.3 / 100
Availability 40.0 / 40
Endpoint responded (HTTP 402)
Payability 13.3 / 20
  • ✓ Answers a real HTTP 402 challenge
  • ✓ Publishes a /.well-known/x402 descriptor
  • ✗ Payment address on record
  • ✗ Settlement network declared
  • ✗ Price declared
Demand 0.0 / 40
No payment address on record, so demand cannot be measured
Owner verified 0.0 / 3
Nobody has claimed this listing yet
Endpoint last checked 6 h ago. Availability and on-chain demand are both re-probed daily; the grade updates automatically on the next pass. This grade sets search order and leaderboards; the readiness score below is shown for reference only.

x402 readiness

B · 80/100

Readiness is how fully this listing follows its protocol and how it behaved in our probes over 30 days. It is shown for reference and does not move it in search. Search order and leaderboards use the separate quality grade (here C+, 53.3/100), which weighs availability, payability and on-chain demand. How the two differ

Valid payment requirements 0/10 No payment requirements on record.
Live 402 challenge 25/25 Paid endpoint answers with an HTTP 402 challenge (138 ms).
x402 version n/a x402 version not observed yet.
Signed descriptor n/a No x402 standard defines a signed descriptor.
Uptime (30 days) 15/15 23/23 probes succeeded over 30 days (100%).
Resource declaration 10/10 Declares 460 paid resource(s).
Verified identity 5/10 Publisher descriptor (/.well-known/x402 or OpenAPI) on record; claim this listing to verify domain control.
Freshness + modern flags 5/5 seen in a source within 7 days; declares x402.
Security declaration n/a Payment is the access control for an x402 resource.
Applicable criteria total 75 points, scaled to 100.
Responsiveness: Responsive (138 ms; bands ≤2.5 s, ≤5 s, ≤8 s, slower; penalty only).
Payment evidence: x402_challenge — We sent a request and got a live HTTP 402 challenge. Also: x402_manifest, catalog_listing. Qualifies the payment claim; adds no points.
Measured 2026-11-11.
Nine criteria, the same as the A2A readiness score, read from our daily probe of the paid endpoint, its payment requirements and 30-day probe history. Signed descriptor and security declaration are n/a for x402 (payment is the access control), as is an x402 version we have not observed; the remaining points are scaled to 100. Grades: A>=90, B>=75, C>=60, D>=40, F<40. Display only: search order uses the quality grade.

Compared with peers

Against 10,060 reachable x402 APIs in our daily snapshot (2026-11-12 01:39 UTC). Display only; it does not change search order.

Readiness
Higher than 55% of peers
This listing 80 · peer median 78
Latency
Faster than 72% of peers
This listing 138 ms · peer median 205 ms

Where it loses the most points, and how to win them back

  • Valid payment requirements −10 — Return complete payment requirements in the 402 challenge.
    Now: No payment requirements on record.
  • Verified identity −5 — Claim the listing and prove control of its domain.
    Now: Publisher descriptor (/.well-known/x402 or OpenAPI) on record; claim this listing to verify domain control.

How many agent tools actually work · All statistics

Paid endpoints

460 resource(s) advertised by this origin. Each price below is that resource's own x402 price; the headline price is the range across them.

POST https://plexus-public-production.up.railway.app/v1/adapters/fec

Federal Election Commission data — search 500K+ candidates, committees, and contribution records — political donation records, PAC filings, and election spending.

POST https://plexus-public-production.up.railway.app/v1/adapters/epa

EPA environmental compliance data — query violations, inspections, emissions, and compliance records for any US facility by name or location.

POST https://plexus-public-production.up.railway.app/v1/adapters/osha

OSHA workplace safety data — retrieve inspection records, violations, and penalties for any US employer.

POST https://plexus-public-production.up.railway.app/v1/adapters/census

US Census Bureau data — query population, income, housing, and education statistics by any geography — state, county, tract, zip code.

POST https://plexus-public-production.up.railway.app/v1/adapters/npi

National Provider Identifier registry — search 8M+ US healthcare providers by name, specialty, location, or credential.

POST https://plexus-public-production.up.railway.app/v1/adapters/cms-payments

CMS Medicare provider payment data — query reimbursement amounts, utilization patterns, and provider cost comparisons.

POST https://plexus-public-production.up.railway.app/v1/adapters/fema

FEMA disaster declarations — Historical and current emergency data for any US location — risk assessment, insurance, and real estate due diligence.

POST https://plexus-public-production.up.railway.app/v1/adapters/fmcsa

FMCSA motor carrier safety data — Carrier profiles, safety ratings, inspections, and crash records for commercial trucking.

POST https://plexus-public-production.up.railway.app/v1/adapters/cfpb

CFPB consumer complaint data — Complaints against financial companies with outcomes, narrative text, and resolution status.

POST https://plexus-public-production.up.railway.app/v1/adapters/propublica-990

IRS 990 nonprofit data — Financials, executive compensation, and tax-exempt organization details for 1.8M+ nonprofits via ProPublica.

POST https://plexus-public-production.up.railway.app/v1/adapters/gleif

GLEIF Legal Entity Identifier data — Corporate ownership, entity registration, and cross-border identification via the Global LEI Foundation.

POST https://plexus-public-production.up.railway.app/v1/adapters/nhtsa

NHTSA vehicle safety data — Recalls, complaints, and safety investigations searchable by make, model, or year.

POST https://plexus-public-production.up.railway.app/v1/adapters/worldbank

World Bank development indicators — GDP, population, trade, education, health metrics for 200+ countries.

POST https://plexus-public-production.up.railway.app/v1/adapters/fda-food

FDA food enforcement actions — recalls, market withdrawals, and safety alerts.

POST https://plexus-public-production.up.railway.app/v1/adapters/courtlistener

federal court data. Search opinions, dockets, and cases across all US federal courts — 4M+ case records for legal research and litigation risk.

POST https://plexus-public-production.up.railway.app/v1/adapters/opensanctions

Global sanctions, PEP, and watchlist screening. Screen entities against international sanctions lists for KYC and compliance.

POST https://plexus-public-production.up.railway.app/v1/adapters/usgs

USGS earthquake data — real-time and historical seismic events worldwide. Magnitude, depth, location, and significance.

POST https://plexus-public-production.up.railway.app/v1/adapters/federal-register

Search the official US Federal Register — rules, proposed rules, notices, and presidential documents from all federal agencies. Filter by agency, document type, or date range. Uncontested on x402.

POST https://plexus-public-production.up.railway.app/v1/adapters/clinical-trials

Search ClinicalTrials.gov — the NLM/NIH registry of 600k+ clinical studies worldwide. Query by medical condition, intervention/drug name, sponsor, or trial status. Covers phase, eligibility criteria, and enrollment dates. Uncontested on x402.

POST https://plexus-public-production.up.railway.app/v1/adapters/fdic

Federal Deposit Insurance Corporation data — search 27k+ FDIC-insured banks and credit unions by name or state, get financial health metrics (assets, deposits, net income, equity), or retrieve the full history of US bank failures. Uncontested on x402.

POST https://plexus-public-production.up.railway.app/v1/adapters/noaa

NOAA National Centers for Environmental Information — US climate and weather data with no API key required. Daily weather summaries (temperature, precipitation, wind, snow) for 100k+ stations, plus monthly and annual climate summaries. Query by station ID or major city name. Uncontested on x402.

POST https://plexus-public-production.up.railway.app/v1/adapters/congress

Official US Congress legislative data — bills (119th Congress default), members, committees. Search bills by keyword, look up specific bill text and status, filter members by state/chamber/party. Requires DATA_GOV_API_KEY. Uncontested on x402.

POST https://plexus-public-production.up.railway.app/v1/adapters/college-scorecard

US Dept of Education College Scorecard — search 6,000+ colleges by name, state, or type. Returns tuition, enrollment, graduation rates, median earnings 10 years post-graduation, median student debt, and admission rates. Ideal for education due diligence and workforce analysis. Uncontested on x402.

POST https://plexus-public-production.up.railway.app/v1/adapters/dog-breeds

Dog breed database — every recognized breed and sub-breed, with a random image per breed. Filter by name or pull a random photo for a specific breed.

POST https://plexus-public-production.up.railway.app/v1/adapters/wttr

Current weather and 3-day forecast for any location worldwide — temperature, humidity, wind, UV index, and conditions in one call.

POST https://plexus-public-production.up.railway.app/v1/adapters/astronomy-pic

NASA Astronomy Picture of the Day — daily curated space imagery with professional explanations, archived back to 1995. Pull today, a specific date, or a range.

POST https://plexus-public-production.up.railway.app/v1/adapters/sec-full-text

Full-text search across every SEC EDGAR filing — 10-K, 10-Q, 8-K, proxy statements, and more. Search by keyword, filter by form type and date range.

POST https://plexus-public-production.up.railway.app/v1/adapters/npms

npm package quality scoring — popularity, quality, and maintenance scores for 2M+ packages. Check whether a dependency is well-maintained before you add it.

POST https://plexus-public-production.up.railway.app/v1/adapters/github-repos

GitHub repository search across 300M+ repos — filter by language, sort by stars, check activity and license before you depend on something.

POST https://plexus-public-production.up.railway.app/v1/adapters/crates-search

Rust package registry search — 150K+ crates with download counts, versions, and descriptions from crates.io.

POST https://plexus-public-production.up.railway.app/v1/adapters/asteroid-neo

NASA Near-Earth Object database — orbital data, size estimates, and hazard classifications for tracked asteroids.

POST https://plexus-public-production.up.railway.app/v1/adapters/donki

NASA space weather events — solar flares, coronal mass ejections, and geomagnetic storms. Relevant to satellite operators, aviation, and power-grid monitoring.

POST https://plexus-public-production.up.railway.app/v1/adapters/space-news

Space industry news aggregator — articles and reports from SpaceX, NASA, ESA, and space media outlets.

POST https://plexus-public-production.up.railway.app/v1/adapters/cat-breeds

Cat breed database — origin, coat type, and pattern for every recognized breed, plus a random-facts mode.

POST https://plexus-public-production.up.railway.app/v1/adapters/random-dog

Random dog photo or GIF from a curated collection — one call, one image.

POST https://plexus-public-production.up.railway.app/v1/adapters/fox-api

Random fox photo from a curated collection — one call, one image.

POST https://plexus-public-production.up.railway.app/v1/adapters/meow-facts

Random cat facts, one to ten per call — lightweight trivia for chatbot personality or fun-fact features.

POST https://plexus-public-production.up.railway.app/v1/adapters/dog-facts

Random dog facts, one to ten per call — lightweight trivia for chatbot personality or fun-fact features.

POST https://plexus-public-production.up.railway.app/v1/adapters/world-bank-country

World Bank country reference data — income level, region, capital, and lending classification for 200+ economies.

POST https://plexus-public-production.up.railway.app/v1/adapters/ipinfo

IP address intelligence — geolocation, ASN, hosting organization, and timezone for any IPv4 or IPv6 address.

POST https://plexus-public-production.up.railway.app/v1/adapters/uuid-gen

UUID generator — v1, v4, or v5, single or bulk (up to 50 per call).

POST https://plexus-public-production.up.railway.app/v1/adapters/lorem-ipsum

Placeholder text generator for mockups and testing — standard or meat-themed (bacon ipsum), by sentence or paragraph.

POST https://plexus-public-production.up.railway.app/v1/adapters/httpbin

HTTP request echo service for debugging — see exactly what headers, IP, and request data your client sends.

POST https://plexus-public-production.up.railway.app/v1/adapters/tcgdex

Pokémon Trading Card Game database — every card from every set with stats, attacks, types, and artwork.

POST https://plexus-public-production.up.railway.app/v1/adapters/ilostat

ILO international labor statistics — employment, unemployment, wages, and working conditions across 180+ countries.

POST https://plexus-public-production.up.railway.app/v1/adapters/openfoodfacts

Food product database — nutrition facts, ingredients, Nutri-Score, and labels for 3M+ products, searchable by name or barcode.

POST https://plexus-public-production.up.railway.app/v1/adapters/rawg

Video game database — 500K+ games with Metacritic scores, platforms, genres, screenshots, and release dates.

POST https://plexus-public-production.up.railway.app/v1/adapters/imgflip

Meme template database — 100+ popular meme templates with names, image dimensions, and caption-box counts.

POST https://plexus-public-production.up.railway.app/v1/adapters/deck-of-cards

Virtual playing card deck — shuffle and draw from a standard 52-card deck for card game simulations.

POST https://plexus-public-production.up.railway.app/v1/adapters/dad-jokes

Curated dad joke database — search by keyword or get a random joke, with community ratings.

How to call

cURL · x402-fetch / x402-axios will auto-handle 402
curl -sS -i -X GET https://plexus-public-production.up.railway.app/  # expect HTTP 402 Payment Required (about $0.02/call)
/.well-known/x402.json
https://plexus-public-production.up.railway.app/.well-known/x402

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Directories this entry was found in.

nohumans since 2026-10-22