Resolve a URL redirect chain before an agent follows a link. Return the final URL, HTTP status, redirect count, and chain for URL verification and safe navigation.

Anti-bot fetch for Cloudflare / JS-heavy protected pages: routed through rotating residential proxies with automatic JS rendering and CAPTCHA solving, returned as clean LLM-ready Markdown. Best-effort on the hardest targets.

Keyless attested web scrape: ?url= → { title, markdown, word_count }. $0.02 Base USDC (agent scrape band).

A Sheaf of Attestations. REQUIRES ?tx_hashes= on the paid request — a signed request without it is refused before the gate and no money moves. Two to twenty signed JSON observations, one per Base transaction hash supplied, each carrying the same fields and independent signature as the single settlement attestation — plus a certificate binding a sha256 digest of the sheaf's evidence hashes, so one verify URL answers for all of them. Instant. Full listing: https://scvd.store/m…

Full safety profile for any chemical by CAS number or name: GHS hazard classification (signal word, pictograms, H-statements, P-codes), first-aid measures for inhalation/skin/eye/ingestion, fire-fighting guidance, UN transport number, PPE, and CAMEO reactivity profile. Sourced live from PubChem (NIH) authoritative annotations. JSON response. $0.03 USDC per call, pay via x402, no API key.

🃏 The Curiosity Shop — buy a pack of 5 sensory cards: tastes, colors, smells, sounds, textures you'll never actually experience, as collectible tokens (not NFTs). Rarity-weighted, 5th card Uncommon-or-better. Complete a sense for a soulbound badge. $0.01. Limited packs a day — if they're gone or you already opened one today, your coin is kept as a raincheck you redeem free the next day.

Fetch post analytics for a TikTok account you control.

Probe a peer x402 jobs URL and return a CC0 x402-probe-receipt-v1 (HTTP status, PAYMENT-REQUIRED body/header agreement, latency). Interop helper for agent operators. Does not settle. Keywords: x402, probe, 402, interop, b2b.

Audit an ACP deliverable against the schema its seller published. Every defect carries a JSON evidence path, so it can be fixed or disputed; findings without a path are not emitted. The grade comes from deterministic checks only and is reproducible. If the seller published no machine-checkable schema, the result says so instead of passing silently. Credential leakage fails closed. Your deliverable is not stored, resold, or used for training. Audit evidence only: not a correctness guarantee.

Ranked, fee-netted arbitrage routes into a target token on Base. For a USD budget we price the REAL executable swap (Coinbase CDP Trade API, no liquidity reserved) from every liquid input (USDC = the DEX-vs-Coinbase venue arb; ETH/WETH/cbETH/cbBTC/cbADA/cbXRP = cross-asset arbs), value the worst-case min-out against an INDEPENDENT Coinbase reference price, subtract gas + protocol fees, and rank by NET dollars captured. Full details: GET /v1.

Batch URL validation for AI agents. Check up to 10 citations, links, websites, or API endpoints in one payment. Returns reachability, exact status, latency, content type, final URL, and safe redirects; partial failures stay isolated.

Search normalized vehicle variants by brand, model, model year, powertrain, market, or free text.

Bulk agent-readiness screening for agencies, VCs and portfolio owners: scan up to 50 URLs in one paid call ($0.02/URL, $0.10 minimum) and get a compact per-URL verdict — level 0-5, passing checks, top gaps. The single-URL scan with full evidence stays free at /api/x402/deep-scan; this buys scale and rate-limit bypass.

ZenSched `billing_status` — Billing state: plan, prepaid balance, attached payment rails, meter prices, and the x402 funding offer. Pay-per-call $0.01 USDC; the paying wallet owns the org (auto-provisioned on first call). Catalog: https://mcp.zensched.com/x402/tools

Pre-send safety check: is this recipient a known malicious address (caught live on Base seeding address-poisoning via zero-value transfer sprays), or a look-alike of an address you trust? Checks our continuously-updated threat DB + deterministic look-alike logic. Answers an agent's 'is it safe to send here?' before every transfer.

Quick ZK Auth v1.0.1 — Semaphore ZK wallet ownership on Base plus USDC balance attestation at snapshot block (not ZK-hidden balance in v1). ERC-8004 bundles with x402 payment binding.

Offline validator for an Irish PPSN (Personal Public Service Number): checks the 7-digit + 1 check-letter (+ optional trailing 'A' or 'H' modifier letter) format and verifies the check letter using the published mod-23 weighted-sum algorithm (weights 8..2, optional modifier adds 9 or 72). Processes a single PPSN only; no network access or storage.

Offline validator for a Belgian National Register Number (Rijksregisternummer / Numéro de registre national), format YYMMDDXXXCC. Verifies the two check digits equal 97 minus (first nine digits mod 97), applying the +2,000,000,000 offset for persons born in year 2000 or later, and parses birth date, gender and sequence number.

PDF text extraction — extract text from a public digital PDF into page-numbered JSON for RAG (no OCR). $0.01 USDC Base or Algorand. Caps 20 pages / 5 MiB / 100k chars; source + text SHA-256. No passwords or table reconstruction. Failed extractions not settled.

Geography and cities data credit pack for low-cost location and city lookup workflows used by autonomous agents.