the402 x402 endpoint directory

Get flight counts (departed, enroute, scheduled) for a specific airport

Call OpenAI's gpt-5.2 via a single pay-per-call x402 endpoint — no OpenAI account or API key needed, pay $0.20 per req

Get Arkham Exchange tokens. $0.20 per call.

Get Arkham WebSocket pricing info. $0.20 per call.

Approve or hold a UK supplier before onboarding by combining Companies House identity/status with UK Sanctions List sc

Get Arkham contract intelligence. $0.20 per call.

Get Arkham tag summary statistics. $0.20 per call.

Screen a UK supplier before onboarding using Companies House status and the UK Sanctions List under the declared polic

Authorize a scoped UK vendor payment-detail change with current company/sanctions controls and a fresh independent cha

AI/agentic copilot exposure lookup for OT/ICS vendors. Pass vendor (Siemens, Schneider Electric, Rockwell Automation,

Live airport departures board by IATA code: upcoming departing flights with destination, airline, terminal, gate, sche

Live airport arrivals board by IATA code: incoming flights with origin, airline, terminal, gate, baggage belt, schedul

Bundled execution of the Convert anything to markdown workflow - Convert anything at a URL - HTML, PDF, or an image -

Bundled execution of the Document intelligence workflow - Turn any PDF or image URL into structured data - metadata, e

Bundled execution of the Forecasting bake-off workflow - Don't guess which forecasting method to trust. Backtest all f

Bundled execution of the Trend analysis workflow - Take any numeric time series - a stock's daily close, a FRED macro

Bundled execution of the Structured scrape workflow - Pull structured data out of any web page deterministically - art

Counterfactual vendor-swap risk comparison. Pass vendor_current, vendor_proposed (optionally product_current, product_

Second Opinion (async): pay, receive a job id in seconds, poll the free result URL for the verdict. Same product as /v

Prescriptive D3FEND-mapped mitigation guidance for OT/ICS threats. Pass one of ?actor=<threat actor name>, ?cve_id=<CV

Aggregate compliance-gap assessment across multiple CVEs/actors in one call. Pass items=<comma-separated, max 25> (aut

Deterministic lookup against Cook et al. (ACM TOPS 2026) testing whether off-the-shelf LLMs generate working ICS attac

Multi-source claim check: a supported/contradicted/insufficient_evidence verdict backed by citations (source URL and e

Checks whether a tank/vessel reported level change is physically consistent with its metered flow-in/flow-out via cons

CTI claim reliability scoring, grounded in Meng et al. (arXiv:2509.23573, Feb 2026). Pass claim=<text>, optionally act

Assesses how much a general-purpose AI agent (not a specialized ICS tool) lowers the barrier for an attacker to reach

Get Arkham token price change since a timestamp. $0.20 per call.

Crypto ETF Sentinel — SEC filing tracker for US spot crypto ETFs across Bitcoin, Ethereum, Solana, XRP and 30+ assets.

Static supply-chain SECURITY scan of a public GitHub repo BEFORE an agent installs/runs it (a dependency, a Claude/MCP

Consolidated market/asset report combining price, volatility, sentiment, and arbitrage reads for one ticker across ven

Top 5 Vietnam travel destinations — curated static list with descriptions, highlights, and best time to visit

Deterministic STIX representability + actionability lookup, grounded in Hahn/Krief et al. (arXiv:2512.18714v3, Jan 202

Second Opinion: an independent adversarial agent attempts to refute your claim (live web research) and returns a struc

Personalized DeFi strategy builder — a custom allocation plan with step-by-step entry paths for your capital, risk and

FDD analysis for franchise-buyer and due-diligence agents. Breaks down Item 7 (investment), Item 19 (unit economics),

Jurisdiction-specific crypto tax obligations, optimization strategies and reporting-tool picks. For crypto tax and acc

Supplement intelligence (NMN, NR/NAD+, berberine, spermidine, urolithin A, fisetin, resveratrol, creatine) for longevi

If/then sector-impact modeling for regulatory and institutional developments. For strategy and compliance agents.

Clinical trial failure analysis for a disease area — why Phase 2/3 trials failed (wrong target, patient population, en

Exam-suite sampler / preview — deterministic, no LLM. For the exam (and optional topic) you name, returns exactly what

VA (US), Veterans UK/AFCS, VAC (Canada), and DVA (Australia) disability claim builder for veteran and veterans-advocat

Trip itinerary planner and day-by-day travel plan generator for any destination worldwide. Returns a complete multi-da

Community opposition intelligence for mining and ESG-risk agents. Returns indigenous-rights and FPIC assessment, water

USGS MRDS records plus exploration-news synthesis for any named mineral deposit or mine worldwide, for exploration and

If/then policy scenarios for policy and government-affairs agents. Returns sector-impact scenarios for any legislative

Freedom-to-operate (FTO) analysis / patent infringement-risk / IP clearance for a product or technology. Surfaces pote

Deep-dive on any economic event for FX and macro agents — NFP, CPI, FOMC, GDP and central-bank decisions: what the pri

DNA variant interpretation for longevity agents. Reads consumer-test genes/rsIDs (23andMe, AncestryDNA) e.g. APOE-e4,

Permanent residency pathway finder / green card roadmap for any nationality and destination worldwide. Ranks every PR

Nonprofit financial intelligence from live IRS Form 990 public data — revenue/expense/asset trend, officer compensatio