the402 x402 endpoint directory

AI data lookup: ask any question, get facts + sources.

Cheapest-chain ranking: all supported chains by all-in USD tx cost

All active economics markets with live probabilities in one call — One-call board of the most active economics predict

All active climate and weather markets with live probabilities in one call — One-call board of the most active climate

US macro dashboard: every tracked series' latest print in one call — All tracked US economic series in one response: t

Full-text search over SEC filings (EDGAR FTS), normalized results — Proxies SEC EDGAR full-text search (efts.sec.gov)

Percentile bands (p10–p90) for temp, precip, or wind — Hourly p10/p25/p50/p75/p90 bands for one variable at a coordina

ETH order book imbalance — depth and spread across 5 exchanges — Ed25519 signed attestation

BTC order book imbalance — depth, spread, sweep cost across 5 exchanges with collapse detection — Ed25519 signed attes

SOL liquidation flow — real-time across 4 exchanges — Ed25519 signed attestation

ETH liquidation flow — real-time across 4 exchanges — Ed25519 signed attestation

BTC liquidation flow — real-time across 4 exchanges with imbalance and clustering — Ed25519 signed attestation

ETH implied volatility surface — ATM IV, skew, term structure from 690+ Deribit options — Ed25519 signed attestation

Solana options instruments — full contract listing across strikes and expiries for options trading — Ed25519 signed at

ETH options instrument discovery across 3 exchanges — Ed25519 signed attestation

BTC options instrument discovery — 2002+ contracts, 106 strikes, 11 expiries across 3 exchanges — Ed25519 signed attes

Summarize raw text into key points

Next-best habit recommendations (USDC on Base).

Tabular to JSON

🆕 Prices the same fiat purchase across EVERY payment method a country allows, and ranks them by what the buyer actual

The latest transactions for a Base address — hash, time, from/to, ETH value, success — via Covalent. For agents tracki

Audio transcription API: transcribe any public audio URL (mp3, wav, m4a, ogg — up to 25MB / ~20 min) to text with a ne

Audio transcription API for agents: paid per call, no keys, no accounts. Neural speech-recognition transcript of any p

Generate images from text prompts. Pay per call with USDC (x402) or credits - archtools.dev

Get the latest news about a covered news topic, delivering the most recent 10 headlines.

Search public social profiles (Instagram, TikTok, Reddit) by query. POST body: {query, platform, limit}.

Transcribe audio to text in 100+ languages via Whisper. Send a file URL, get an accurate transcript back in one call.

Which manufacturers pay a given physician specialty in a territory, and how much — CMS Open Payments rolled up to the

Discover pharma & device MANUFACTURERS from CMS Open Payments by name, total-spend band, or year of first appearance —

Search hospital price-transparency negotiated rates by billing code (CPT/HCPCS/MS-DRG), state, payer, hospital CCN, or

Real-time BTC/USDT directional signal (RL model): position lean, conviction, risk flags. 1h bars, updated ~every 12s.

Check budget and approve/deny AI agent spending with x402 payment verification

Verify that an AI-agent payment produced the expected service response and audit evidence.

Search the OIG List of Excluded Individuals/Entities (LEIE) by name, NPI, state, or exclusion type. Answers: is this p

Find Medicare Part D prescribers of a specific DRUG or therapeutic CLASS at NPI level — the core pharma targeting quer

Newly-enumerated NPIs with their EXACT Provider Enumeration Date and taxonomy detail, from the CMS NPPES full monthly

Search HRSA 340B OPAIS covered entities + child sites by state, entity type (FQHC/DSH/CAH/RHC/…), or name — the 340B b

Find HRSA Health Professional Shortage Areas (Primary Care / Dental / Mental Health) by state, discipline, minimum sho

Discover FQHC / Look-Alike health-center SITES from the HRSA roster by state, type, county, name, or newly-added-to-sc

Find email address for a person synchronously. Provide name + company or LinkedIn URL.

Capture a screenshot of a website. Supports both viewport (standard browser view) and full page screenshots.

Scrapes the given URL and returns the raw HTML content of the page.

Full trading context for a tokenized asset

Enrich a company by name, website, LinkedIn URL, or company_id. Returns full profile with description, industries, NAI

Capture a screenshot of a website. Supports both viewport (standard browser view) and full-page screenshots. Can also

Crawls the sitemap of the given domain and returns all discovered page URLs. Supports sitemap index files (recursive),

Resume processing pending pages in an existing crawl job. Call repeatedly until status is 'completed'.

Unlock full contact details (emails, phones, social profiles) for prospect PIDs obtained from /contacts/search. Requir

Enrich a single contact by email, phone, LinkedIn, Facebook, or name+company. Returns full profile with work email, ph

Search for lookalike companies with pagination and filtering. | ERROR: Unable to calculate price.