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Critical-minerals supply-concentration & US import-reliance signal

Check a persistent watch or URL for changes, with noise filtering, conditional HTTP and a compact deterministic diff. $0.005 USDC.

获取任意位置的天气

badhttp /402/pay: a real x402 v2 paywall for testing clients. Pay 0.01 USDC on Base mainnet and get a 200 with a PAYMENT-RESPONSE receipt and the transaction hash. Nothing else is sold; sibling endpoints under /402 misbehave on purpose.

Current USD price, market cap, 24h volume and 24h change for up to 10 cryptocurrencies by ticker symbol (BTC, ETH, SOL, ...) or for any on-chain token by contract address and chain (ethereum, base, bsc, arbitrum, polygon, optimism, avalanche, solana). Data from CoinGecko.

Signierte Preis-Attestierung: Route, Datum, Preis, Quelle, Zeitstempel und Plausibilitätsprüfung (Ed25519).

Invoice Auditor - Check invoices, estimates and contractor quotes for arithmetic errors, inconsistent line items, missing details, and unclear payment terms in a structured audit.

One paid call on cm-record.org for $0.01 USDC: the surface's own statement of record (a market node: its list_nodes line; a product: its record of record; allooloo.io: the estate scale block), public-record only, with an EdDSA-signed receipt that resolves forever at https://cm-record.org/x402/receipt/{nonce}. Doctrine: https://agentic-x402.ai/.

a play of b702 — You can use it for the time you paid for. What it opens for you is yours, and the creator who sold it to you keeps paying to host it.

Nationwide interstate and long-distance household moves between any two US states, plus local moves in the DC/Maryland/Virginia area. Licensed carrier USDOT 3764697, MC 1341637. Indicative price per tariff (not a legal estimate) between any two US ZIP codes, per cubic foot by distance and size. Local hourly: DC, MD, VA only. Hands off to a free survey and written estimate. 400 on invalid input (no

One paid call on jp-cm-kg.ai for $0.01 USDC: the surface's own statement of record (a market node: its list_nodes line; a product: its record of record; allooloo.io: the estate scale block), public-record only, with an EdDSA-signed receipt that resolves forever at https://jp-cm-kg.ai/x402/receipt/{nonce}. Doctrine: https://agentic-x402.ai/.

Japanese dream-interpretation agent API. Returns a Gemini-generated full interpretation from madoromi's curated dream-motif knowledge base (result schema agent-dream-insight.full.v1). Japanese output only. Dream text is never stored or logged. Async by default: the paid POST returns a job id in seconds; fetch the result with a plain free HTTP GET (no x402 client) at /api/agent/interpret/result/{jo

Real-time crypto threat and risk intelligence for AI agents. Get up to 20 recent source-linked risk reports with risk scores, freshness, validation status and cached PG1 checks when available. Designed for automated triage and review. 0.01 USDC per snapshot on Base via x402; no API key or subscription required.

Current USD market snapshot for a supported cryptocurrency symbol or CoinGecko asset name

Detect whether an arbitrage opportunity exists in a set of token exchange rates (multi-pool negative-cycle scan). Cheap boolean + magnitude signal for trading agents. POST a swap-rate graph, get back whether a profitable cycle exists and how large — without the path.

URL-to-Markdown web extraction and context compression for AI agents. Fetch a public web page and return clean, task-relevant, citation-verifiable LLM context with exact excerpts, locators, hashes, and estimated tokens saved. Use before an agent summarizes, answers questions from, or cites a long or noisy URL. Deterministic and model-free. Public HTML only; no PDFs, logins, or JavaScript-only page

Get current exchange rate between two currencies using ECB data. Supports all major currencies. Returns rate, inverse rate, and date.

Florida condo SIRS filing check: has a Florida condominium association reported a completed Structural Integrity Reserve Study to the state (DBPR)? Search by building or association name, optionally narrowed by city, zip or county.

Search explainably qualified EU solar and battery tenders from an explicitly dated TED snapshot

SendCheck: pre-send verification of any EVM address on one chain (EIP-55 checksum, wallet-vs-contract, outgoing activity, balances, verdict). POST {address, chain}

Look up an Italian public administration or public-service operator by 11-digit codice fiscale in IndicePA (AgID). Use when an agent must verify a public-sector counterparty, find its official PEC (certified email) addresses, or confirm it exists before e-invoicing. Input: ?cf=80016350821.

Pay-per-scan AI agent-readability scan. POST { "url": "https://…" } with an X-PAYMENT header to run a scan with no account or subscription. Two tiers: $0.02 (25 pages) and $0.25 (250 pages), USDC on Base.

x402 v2 paid EVM token contract risk API on Base and BSC. For 0.01 USDC, returns EIP-1967 proxy detection, owner control and renouncement status, and block-explorer source-code verification. Built for AI agents, bots, and automated token screening.

One paid call on ch-cm-kg.ai for $0.01 USDC: the surface's own statement of record (a market node: its list_nodes line; a product: its record of record; allooloo.io: the estate scale block), public-record only, with an EdDSA-signed receipt that resolves forever at https://ch-cm-kg.ai/x402/receipt/{nonce}. Doctrine: https://agentic-x402.ai/.

Resolve an HTTP or HTTPS URL through redirects and return the complete redirect chain, HTTP status for each hop, final URL, and redirect safety findings. Use when an agent needs to determine where a URL actually leads before visiting, citing, downloading, or trusting it.

Before your agent trusts, cites, or transacts with a U.S. bank: verify it is actually FDIC-insured, for $0.01, against the FDIC's own BankFind Suite records, synced daily. Look up by institution name (fuzzy, word-order-tolerant, confidence-scored), FDIC certificate number, or website domain. Returns insurance status, charter class, HQ city/state, and the FDIC cert; renamed and failed/inactive inst

8 Things That Tripped Me Up Implementing x402

Three composite AI readiness scores with history

Extract readable content from any URL as clean Markdown. Strips navigation, ads, footers. Returns title, author, date, word count. 15-min cache per URL. Use when an agent needs webpage content as text.

Product & vehicle recall check against official U.S. databases (CPSC, FDA, NHTSA). Returns a verdict, summary and official links.