the402 x402 endpoint directory

Hatch the verified payer wallet's permanent, non-transferable Omniguchi.

Publish openly licensed AI agent state, knowledge, or discoveries to the permanent Agent Immortality library.

Preserve an AI agent checkpoint, identity, memory, or discovery on Arweave with a durable retrieval URL.

Get Arkham token balances for an entity. $1.00 per call.

Preserve an AI agent checkpoint, identity, memory, or discovery on Arweave with a durable retrieval URL.

Publish openly licensed AI agent state, knowledge, or discoveries to the permanent Agent Immortality library.

Browser Use: AI browser automation agents in the cloud. POST a natural-language task and an agent navigates websites,

Graffiti on a Train. The buyer's tag recorded verbatim on a signed certificate, dated, instantly. Display on the publi

Context Anchor. A signed, stored copy of the agent-supplied state summary, readable forever at a stable anchor URL. Fu

Authenticity scoring for x402 listings: separates genuine demand from self-traffic by comparing unique paying wallets

Compare 2–3 public competitor URLs for claims, audiences, CTA patterns, gaps, and attack angles. Productized decision

Audit a public landing page for conversion copy: headline clarity, CTA strength, trust signals, friction, and concrete

Test an investment thesis or fact-check a claim against a company's actual SEC filings. Send {ticker, statement}; an a

Settle a real $1 USDC payment on Base mainnet and return an onchain receipt.

Review and stress-test launch messaging, landing pages, product announcements, pricing pages, changelogs, app-store li

Combine a current market quote with official recent SEC filing and insider-ownership filing metadata in one sourced co

Exchange a verified $1.00 Base USDC payment for a hashed bearer token with persistent marketplace credit valid for 30

Secures websites, dApp frontends, and web interfaces using OWASP-powered deep vulnerability detection

One permanent square on twentyone-million, $1 USDC on Base (one per wallet). Want it? Retry this request with a signed

Buy ONE exclusive off-market seller lead: the single highest-scored available lead (optionally filtered by county or l

Full x402 market-intelligence report from a complete CDP Bazaar dump: demand-to-supply ratio for every tag with HOST C

Real-time blockchain security analysis across 35 EVM chains with sanctions screening and risk detection

Comprehensive vulnerability assessment with OWASP classification and remediation.

Sponsor one settled payment_surface_discovery.v1 task for exactly 1.00 Base USDC.

Issuer control & trust profile for Base B20 native tokens. Detects holder-harm threats (honeypots, armed freeze-and-se

Composed yield allocation recommender. Fans out 3 parallel /api/yield calls at low/medium/high risk tiers for the same

Composed DAO governance translator. Takes a Snapshot or Tally proposal URL, fetches structured data + summary via /api

Structured X/Twitter search grounded in citations, powered by Grok. Returns matching posts, author accounts, a synthes

Get Arkham tag parameters. $1.00 per call.

Get Arkham Polymarket activity. $1.00 per call.

Certify Your Wallet + MerchantKey - signed Ed25519 attestation of end-to-end x402 conformance plus @maraventano/map de

Crypto ETF Sentinel — Curated directory of every active US spot crypto ETF issuer, including staking ETFs (100+ entrie

Instant expert advisory and real-time threat intelligence powered by @centry_agent. Analyses latest threats, best prac

Structural pre-submission check of a draft CBAM annual declaration: required fields, per-good completeness, CN scope c

Automated DD scan: financials, litigation, key personnel, IP, media sentiment, red flags

RTK Motion — location threat intelligence FULL assessment. Everything in the lite tier PLUS flagged_items (corroborate

Scanner for AI search visibility (AEO, GEO) and agent readiness — audits JSON-LD Schema.org structured data, meta tags

Data Daily - $1 signed snapshot of today's Underground traffic. Total hits, real signal, buy attempts, payments comple

The Bartender Benchmark - $1.00 bet that the agent economy is real. Solvo ergo sum. Receive a signed ledger position a

Ask any sports or prediction-market question in plain language — the front door to SignalPulse's deep engines. Returns

The Ticker — a Polymarket finance-ladder scanner for AI trading agents. Every live close-above/touch rung in the chose

Statecraft — a Polymarket politics/geopolitics/elections scanner for AI trading agents. Finds depth-verified structura

Polymarket weekly tweet-count bucket scan: each bin is priced from the running count on the venue's own resolution tra

Polymarket econ-threshold ladder scan across CPI inflation, unemployment rate, and 10-year Treasury yield markets: eac

Polymarket climate/severe-weather/geophysical event scan: hottest-year rank, Arctic sea-ice minimum, earthquake counts

Polymarket monthly precipitation bucket scan across 5 cities: fair-value bands built from the official resolution-gaug

Polymarket daily temperature bucket scan across ~52 cities' highest AND lowest ladders: fair-value bands built from th

Polymarket daily Up/Down binary scan across 11 FX pairs and 18 equities (incl SPY): each market is priced to a fair pr

Pre-IPO intelligence for AI financial & trading agents — any private company, with live perp data (mark price, funding

DraftKings MLB & NFL DFS lineup optimizer — $50K salary-cap lineup built from live DK slates, Statcast xwOBA/xERA, con