13F holdings for any SEC-filing manager (hedge funds, asset managers) by CIK or manager ticker: latest 13F top 20 positions, amendments applied (hourly snapshot, ~1h correction lag): issuer, CUSIP, value in whole USD, share/principal amount (SH/PRN), put/call flag, reported value, position count. Whale tracking from the primary source. 13F holdings, hedge fund positions, institutional ownership. Public-domain SEC EDGAR. $0.003 per call.

OG Image Generator: Generate an Open Graph social-card image (1200x630 PNG) from a title and description. Returns a base64-encoded image (MCP content type image). Optional image URL embeds a header graphic. Title truncated to 60 chars, description to 120. Pay per call in USDC on Base via x402 — POST https://x402.freeq.one/tools/og_image_generator.

Everything Agent402 knows about one x402 seller origin, in one read: identity and crawl history, the catalog with the provenance of every price (live-402 or manifest, when it was read, whether it is stale or disagrees with the seller's own declaration), advertised wallets against the wallets that were actually paid (own chain evidence, inherited wallets, shared claims), settlement evidence per source (our Base leaderboard, the x402 Bazaar discovery index, Solana SPL credits, MPP transfers), the.

Cross-Chain Balance Checker: Aggregate native balance and token/NFT counts for an address across eth, arb, base, polygon, opt. Pay per call in USDC on Base via x402 — POST https://x402.freeq.one/tools/cross_chain_balance.

Whale Alerts Scanner: Scan recent blocks for large ETH transfers involving an address. Filter by direction (in/out/both) and threshold. Pay per call in USDC on Base via x402 — POST https://x402.freeq.one/tools/whale_alerts.

Mermaid Diagram Renderer: Render a Mermaid diagram to an image (PNG or SVG). Returns a base64-encoded image (MCP content type image). Options: format (png|svg), theme (default|dark|forest|neutral), scale (1-4, PNG only). Pay per call in USDC on Base via x402 — POST https://x402.freeq.one/tools/mermaid.

Wallet Portfolio: Get a complete wallet portfolio for an Ethereum address: native ETH balance, ERC-20 balances, NFT holdings, recent transfers. Pay per call in USDC on Base via x402 — POST https://x402.freeq.one/tools/wallet_portfolio.

Whitepages Person Search - Find people by name, phone, address

Generate an SVG: draws an SVG from a text prompt: logos, icons and illustrations. Use when an agent needs an editable vector logo, icon or illustration rather than a raster image. $0.30 this call, in USDC on Base; you pay only if it succeeds. HivemindOS SuperAgent API.

Redirect tier (deterministic, no LLM): verifies where a public URL actually leads: final URL (byte-exact), first response status, and hop count of the HTTP chain, walked twice with per-hop SSRF checks. Use it to confirm a link or a moved page points where it claims. Loops and unstable chains return unverifiable, never a guess. First 100 checks per client are free: resend with header X-Use-Free-Allowance: yes and no payment to use them.

Accounts affiliated with a user (e.g. an organization's members). Example: GET /api/jack/affiliates

Find local business leads: searches local businesses by text, e.g. plumbers in a city, with up to 20 results. Use when an agent is building a prospect list of local businesses by category and place. $0.07 this call, in USDC on Base; you pay only if it succeeds. HivemindOS SuperAgent API.

Vectorize an image to SVG: turns a raster image into a clean SVG. Use when an agent has a PNG or JPEG logo, icon or drawing that must scale cleanly or be edited as vector paths. $0.25 this call, in USDC on Base; you pay only if it succeeds. HivemindOS SuperAgent API.

Photo keywords: writes a stock-ready title, description and 12-25 keywords for one JPEG, PNG or WebP photo. Use when an agent is preparing photos for stock sites, a photo library or image SEO and needs titles, descriptions and keywords. $0.03 this call, in USDC on Base; you pay only if it succeeds. HivemindOS SuperAgent API.

XRP price direction forecast. Composite model: EMA(20/50)/RSI(14)/MACD(12,26,9)/ATR(14) heuristic off Binance klines, not the Kronos ML model. It has shown no directional edge; check its live per-asset figure at /api/stats (beta_accuracy.per_asset, free) before buying. Returns up_prob, range_low/high, and accuracy_note. Pay-per-call via x402 on Base USDC.

Batch Semaphore Proof Verifier: Batch verify up to 10 Semaphore proofs in a single request. Returns per-proof results with total count and average duration. Pay per call in USDC on Base via x402 — POST https://x402.freeq.one/tools/verify_batch.

JSON tier (deterministic, no LLM): verifies a claimed value lives at a named JSON path in a public endpoint's response, by independent double re-fetch. Use it for machine-readable API responses; for HTML pages use /verify. Claim keys are paths (data.items[0].price). Type-strict; volatile values return unverifiable, never a guess. Public HTTPS JSON only. First 100 checks per client are free: resend with header X-Use-Free-Allowance: yes and no payment to use them.

What the same transaction costs right now on Base, Optimism, Arbitrum and Ethereum, in USD, cheapest chain first.

Use before paying an x402 endpoint you have not used before, when you cannot tell a working seller from a trap, a testnet address dressed as mainnet, or a listing whose price no longer matches its challenge. Returns a verdict — live, degraded, trap, testnet or dead — a 0-100 risk score, and the specific findings behind both, so an agent can decline a bad endpoint instead of learning about it by losing the money. Costs less than the smallest payment it protects.

One-call email verification for lead qualification and list hygiene: RFC 5322 syntax check, then a live MX lookup over DNS-over-HTTPS (Cloudflare, Google fallback). Detects non-existent domains (NXDOMAIN), null-MX domains that refuse mail (RFC 7505), and returns prioritized MX hosts. Query: ?email=someone@example.com. Verdict: deliverable | risky | undeliverable. 1h cache per address.