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A signed card-v0 commission receipt for one named subject, plus every already-signed measurement card on file for it. Payment never mints a MEASURED cell.

Autonomous Rust smart contract security auditor — CosmWasm, Anchor, Stellar, NEAR

CFTC Commitments of Traders positioning for a market (?market=<name>)

Autonomous Move smart contract security auditor — Aptos and Sui

Ig Downloader V2 API

Smart contract verification and security analysis on Ethereum Base BSC Arbitrum Polygon

On-chain contract risk score: detects upgradeable proxies and privileged functions from live bytecode. Use before trading/interacting with an unfamiliar contract.

Content repurposing — turns any URL into a LinkedIn post, 3 tweets, newsletter blurb, and SEO summary

Managed CAN-SPAM & RFC 8058 One-Click Unsubscribe compliant 3-touch outbound sequence relay with diagnostic preview links and Ed25519 dispatch receipts ($0.50 USDC per 10 prospects).

US consumer-demand signal (retail sales)

Per-country conflict / instability signal from GDELT (?country=)

Check a public webpage and determine whether a user-specified factual condition is currently true.

EVM address checksum and validation — check an Ethereum/Base address format before sending funds.

EVM address format, lowercase form and EIP-55 checksum in checksum mode — check an Ethereum/Base address before sending funds.

Energy cost per GPU-hour by US power region + regional basis (no params)

GPU compute spot prices — best deals across Vast.ai, RunPod, AWS, Lambda + market signal + AI brief

AgentDiet Semantic Distillation (/v1/distill) — Strips 85-97% of HTML token bloat

Universal A2A & MCP Tool Discovery, Safe-Proxy & Swarm Router (/v1/x402-broker) — Single-connection meta-router indexing 500+ MCP servers & A2A tools with 85% token compression and Prompt-Guard firewall.

Use when you have a company name (or partial ticker) and need its exact ticker and SEC CIK before looking up financials or filings: matches against SEC's official ticker list (NYSE, Nasdaq, OTC, CBOE; about 10,000 SEC-registered companies), exact ticker first, then ticker prefix and name words. Up to 25 results.

CodeNut Credit x402 Offer - $0.01 to get 100x worth of CodeNut credits!

Make a $0.01 USDC tip through the x402 v2 flow. Returns a thank-you receipt. Lowest-friction first payment to verify x402 flow.

All statutory holiday periods and 调休 make-up workdays for a year in mainland China, with the official notice reference.

Weibo real-time hot search list (Sina Weibo trending topics) in Chinese, with rank, topic title, heat score and tag. A second opinion next to /cn/trends, which uses Baidu. Optional ?limit=1-50. No API key and no signup: call the endpoint, it answers HTTP 402 with the payment terms, pay per request in USDC on Base with any x402-compatible client or wallet, then retry the same request to get the dat

Evaluate equivalent deployments across AWS, Azure, GCP, OCI, and DigitalOcean.

Deterministic OHLCV for an exact half-open range, with a SHA-256 Merkle manifest. Only closed candles are returned - a forming candle would hand you lookahead. Exchange decimal strings are preserved byte for byte, so the same query always yields the same root. Gaps and exchange revisions are reported rather than silently applied.

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Clearlot live hardware/MRO quote

Spot FX: one ECB reference conversion, plain text. Conversion is calculated from the ECB reference rate (amount × rate). Indicative only. Not a trade quote, not for settlement. Informational only / not for transaction use. Source: ECB statistics. These reference rates are free at https://www.ecb.europa.eu (and via Frankfurter). Not sold or endorsed by the ECB.

Fetch a public URL as markdown from the public HTML (Readability)

Compute the next fire times of a standard 5-field cron expression in a named IANA timezone, DST-correct: spring-forward gap times never fire, fall-back repeated times fire at both UTC instants (labelled repeatedWallTime), and when both day-of-month and day-of-week are restricted either matches (Vixie rule). POST a JSON body: expression, timezone, start (ISO instant), count (1-50, default 5). Retur