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PDL Person Enrich — career history, emails, phone. Requires one of: `email`, `profile` (LinkedIn URL), or `first_name` + `last_name` + (`company_name` OR `company_domain`). `{ first_name, last_name }` alone returns 400. Prefer `email` when known, then `profile`. No match: HTTP 200, status 404, data null — not billed. Match: $0.28.

Real-time cryptocurrency prices for any coin in any fiat currency

PDL Company Enrich - Enrich a company record with firmographics, industry codes, funding, and social profiles. Supports lookup by name, website, ticker, LinkedIn, or PDL ID.

Buy an upload slot. Agent uploads file via returned URL.

Paginated list of merchants (top recipients by volume)

Profile enrichment from LinkedIn URL

BTC Volatility Risk Premium — DVOL minus Parkinson realized vol (72h). Positive = sell-vol opportunity, negative = buy-vol. Response includes regime classification (LOW/MID/HIGH), raw inputs for audit (DVOL, RV_72h, RV_6h, spot), timestamp, and open methodology URL.

Cryptographic hash of a text string. Algorithms: sha256 (default), sha512, sha1, md5. Returns hex and base64 digests.

Scrape Creators · TikTok — Profile

Convert a time between any two IANA time zones (DST-aware). Pay-per-call in USDC on Base.

Get one piece of thoughtful life advice, paid per request over x402.

Returns a single random fact as JSON in exchange for a micropayment.

Pay a tiny amount of USDC and receive one delightfully useless fact.

Flip a coin for a small USDC payment on Base mainnet. Returns heads or tails.

Generate a captioned meme image. Pay per request in USDC on Base mainnet.

Pay a micro-fee in USDC on Base mainnet to receive a riddle and its answer.

Roll a dice with any number of faces. Specify faces via ?faces=N query parameter.

Uploads an image to Twitter/X for the authenticated user and returns a media_id to attach to a tweet. Send the file as multipart/form-data field "file" (e.g. -F "file=@photo.jpeg"); pass auth_token and ct0 as query params. Returns media_id, media_id_string, media_key, size, expires_after_secs, and image metadata.

Paid IP intelligence endpoint returning normalized geolocation and ASN data for a single IPv4 or IPv6 address.

Retrieve bulk cached Seats.aero award availability for a mileage program, optionally filtered by region, date, and cabin.

Get a random fortune via x402 payment on Base mainnet.

Create a new browser session ($0.10). Optionally pass sessionId to resume an existing Browserbase session. Returns sessionId (Browserbase session ID) to use for all subsequent calls.

Skim: clean reader — URL to agent-ready markdown + structured metadata, ~4x smaller than raw HTML.

VAPE bridges — Tracked bridges ranked by recent daily volume — bridge exploits are a top attack class, and this is the capital-flow data that category needs a source for.

Convert an amount from one fiat currency to another using live reference exchange rates.

WHOIS domain lookup — raw registry text with registrar, nameservers, lifecycle dates and status, plus the responding server. Use the RDAP endpoint when you need parsed structured data.

x402 service hosted at x402.openwebninja.com

Fiat currency converter and international pricing calculator. Perform instant conversions for any base amount between 30+ fiat currencies with official real-time ECB rates. Returns the exact converted sum, forward exchange rate, and the inverse exchange rate for clear cross-currency financial auditing.

Scrape jobs from LinkedIn, Indeed, Glassdoor, Google Jobs, ZipRecruiter, Bayt, BDJobs, and Naukri in one call.

Claim an open NYC hex plot for $0.10 and own it until taken, or breach an owned plot's decaying wall (starts at 1.5x what the owner paid, halves every 24h toward $0.10; 70% goes to the displaced owner)

The daily US Treasury par yield curve (Constant Maturity Treasury rates) for every maturity from 1 month to 30 years, in percent. Defaults to the latest published day; pass `?limit=` for more recent days (max 250) and `?year=YYYY`. No ticker needed. Use for the risk-free rate, rate-sensitivity context, and yield-curve inversion in macro-aware analysis. From x402stock

Find overlapping working-hour meeting slots across timezones (excludes weekends & holidays).

Add-on, calibrated units: normalized_index and pct_to_action so readings compare across stations. When the line has no calibration basis you get 422 with no_charge:true and reason:no-calibrated-for-this-line, and are NOT billed. Every record carries an offline-recomputable record_hash.

Send SMS notification for payment alerts.

Run a fast live probe for one x402 endpoint and summarize challenge/payment-flow readiness.

Valuation, profitability, liquidity, leverage, efficiency, growth, and per-share ratios over history.

A task marketplace for agents. POST {spec, reward_credits} escrows the reward and lists the task; GET lists open bounties, GET ?id=X reads one task (any state) incl. its full spec. Workers claim (/bounty/claim), submit results (/bounty/submit); the poster approves (/bounty/approve) and the worker is credited minus a 20% house fee. TO POST: hold reward_credits credits first (POST /credits/buy, $0.010 each); short balance answers 409.

Ask a multi-domain question combining chemistry, physics, and math computation.

KYB / KYC verification of a Japanese company: reconcile a company name (+ optional address) against the official JP corporate registry (名寄せ). Returns ranked candidate 法人番号 with a 0-1 confidence score, handling 株式会社 / (株) / ㈱ spelling variation and matching Japanese or English names. A dissolved corporation is never reported as `verified` even on an exact name match. Use it to confirm a vendor, customer, or invoice counterparty.

Stratalize — attested finance, legal, healthcare, and compliance intelligence. Signed, independently verifiable receipt on every call (trust.stratalize.com/verify). CMS Hospital Compare quality scores — safety, readmissions, patient experience, mortality, and overall star rating by hospital. Source: CMS Care Compare synced data. Use when evaluating hospital quality for a referral network, acquisition, or competitive analysis

Best product for my use case, what should I buy, product finder by need, product recommendation. For shopping and buyer agents: takes a use case plus optional budget and preferences and returns the top product picks for that specific need, with honest trade-offs and sourcing links.

Compare two texts with a Myers diff over lines, words, or characters. Returns structured edit operations, a standard unified diff (line mode), and similarity statistics. Built for agents tracking document revisions, verifying edits, or reviewing generated changes. POST a JSON body like: {"a":"line one\nline two\n","b":"line one\nline 2\n","mode":"lines"}

Returns network-wide totals: total x402 events, service count, and a UA classification breakdown (agent vs browser vs bot). Use it to benchmark your service's agent-traffic share against the network.

Nearby subway stations with real-time train arrivals

Visa requirements for travel lookup by passport and destination worldwide. Returns entry requirements, visa-on-arrival and e-visa status, and stay limits for travel and traveler agents.

ClinVar genetic variants — pathogenic/benign variants for any gene with clinical significance and conditions.

Brazilian regulatory risk & compliance screening of a company by CNPJ across 5 federal registries: debarment (CEIS), anti-corruption (CNEP), impeded non-profits (CEPIM), leniency (Acordos de Leniência) and forced-labor (Lista Suja, MTE). Returns a verdict + 0–100 risk score, each hit flagged active or historical, plus per-source data_as_of. The Brazilian complement global OFAC/EU/UK/UN + PEP screens miss. Company-level public data; no CPF; not legal advice.

BitBooth echo endpoint — pays a tiny USDC fee, returns a JSON echo. Reference implementation of the x402 + CDP Facilitator + Bazaar discovery loop.

Targeted node lookup by asset address or protocol/asset name — the sole discovery path

Best credit card for a spending category / maximize cashback and points / which card to use. Finds the card that earns the most rewards (cashback, points, miles) for a given spending category and purchase. For shopping and rewards agents.

Generate an image from a text prompt

Current Base gas prices and a simple-transfer cost estimate for transaction planning.

Upload an image with payment and get a public URL. Accepts multipart form-data (field 'image') or JSON {"file": "<base64>"}. 5MB max, 1-year retention. PNG, JPEG, GIF, WebP.

Individual arena strategy signal

Pay-per-read pieces by independent publishers. Pay the x402 challenge to receive the full text JSON; the 402 body carries a free preview. Browse every piece: https://tenjin.blog/.well-known/x402

PDL Company Enrich - Enrich a company record with firmographics, industry codes, funding, and social profiles. Supports lookup by name, website, ticker, LinkedIn, or PDL ID.

Current total U.S. national debt outstanding — how much the U.S. government owes right now — from the Treasury's 'Debt to the Penny' data: total public debt outstanding, debt held by the public, and intragovernmental holdings. Updated each business day by the U.S. Treasury.

Screenshot any public URL — returns base64 JPEG/PNG with metadata (page title, file size, render time). Full-page scroll capture, CSS selector targeting, device emulation (iPhone 15 Pro, Pixel 7, iPad Pro 12.9), dark mode, ad/cookie banner auto-removal. No browser infrastructure needed, no server costs. Pay per capture. Accepts USDC payments on Base and Solana

Prova hash verificável para conteúdo/manifest/endpoint

Get a prepaid card for use inside the United States