Crypto perpetual funding rates and open interest ($0.001): latest annualised funding rate and open interest of perp markets on Hyperliquid (crypto plus stock, index, gold, oil and FX perps), GMX v2 and gTrade, largest funding first. Use to spot crowded leverage cheaply.

Track Record: every stored Kronos signal and its scored outcome, misses included (the signal+outcome dataset). Pay per call via x402. Not financial advice.

Euro exchange rates and forex reference rates ($0.001): official ECB euro rates for about 30 currencies (USD, GBP, JPY, CHF, CNY, ...) with the date and the change vs the previous fixing. Use for official FX conversion rates.

Is this x402 API trustworthy? Body {url}. Returns its latest Kertivo Index endpoint trust score/grade (A, B, F, C-never-live, C-went-dark, or ungraded) and run date, plus evidence from a real paid test call: 402 status, price, payTo, settlement tx, on-chain check, HTTP status after paying, latency, schema and delivery result. Not in the index: status not_indexed. Also a public claims tally (buyer-filed disputed vs delivered), kept separate from the grade. Free grade-only: GET /trust/lookup?url=

Recent SEC filings for a US-listed company: form type (10-K, 10-Q, 8-K, S-1, DEF 14A, 4, 13D/G...), filing date, report date, acceptance time, 8-K item numbers, accession number and direct links to the document and filing index, plus company industry (SIC), exchange and fiscal year end. From the SEC EDGAR submissions index, refreshed every 30 min. Params: ticker or CIK, form (optional, comma list e.g. 10-K,10-Q or 8-K), limit (default 20, max 100).

Prediction markets: active prediction markets matched to BTC, ETH, SOL (price-level and touch markets) or MACRO (Fed decisions, US CPI) with the current Yes price, volume, resolve time and link, refreshed hourly. Pay per call via x402. Yes prices are what traders pay, not our forecast. Not financial advice.

Stablecoin peg monitor and depeg alerts ($0.005): peg of USDT, USDC, DAI, USDS, USDe, PYUSD, GHO, crvUSD, RLUSD, USD1 and FDUSD from Ethereum DEX prices, depth ($100k sale impact) and Chainlink, with a status (PEGGED, WATCH, DEPEG, THIN_MARKET). Refreshed every 5 minutes. Use before holding or routing through a stablecoin.

Address-poisoning check before you send USDC on Base. Body {from, to} (or sender/recipient; chain=base, token=USDC only, others 400 not charged; optional contacts/known_addresses): scans the sender's recent Base USDC transfers for lookalikes (same first/last 4 hex) plus dust/zero-value transfers. No sender? {recipient, known_addresses} = offline contacts check; {address} alone scans its own history for poisoning signs. Returns risk low/medium/high, lookalikes, reasons, coverage.

Payment verification for x402: verify a USDC transaction on Base — did this payment really settle, and did it pay the right address the right amount? Send a tx hash (or x402 authorization): confirmations, real-USDC transfer check, expectedPayTo/expectedAmount match, fake-USDC and lookalike-address warnings, who funded the payer (external, self_funded, unknown), plain-English summary and a receipt. Body {txHash|authorization, expectedPayTo?, expectedAmount?}. Free demo: POST /demo.

On-chain stock / ETF price: latest Chainlink oracle price for major US stocks and ETFs (AAPL, MSFT, NVDA, AMZN, GOOGL, META, TSLA, COIN, MSTR, SPY, QQQ and more), with 24h and 7d change, oracle update time and the oracle contract it was read from. Read directly from the blockchain, so it is verifiable and available 24/7. Params: ticker. Use when an agent needs a current stock or ETF price, a tamper-proof reference price, or a price usable for tokenized-stock / DeFi logic. $0.001 per call.

Short Link Creator: Create a permanent short link on freeq.one (e.g. https://freeq.one/MySlug). Optional: custom slug, expires_at (ISO date) for a TTL link that auto-expires — same price. Returns short_url plus a one-time manage_secret that gates FREE stats (GET /tools/shortlink_stats with X-Link-Secret) and FREE deletion of the link. Store the secret — it is shown only at creation. Pay per call in USDC on Base via x402 — POST https://x402.freeq.one/tools/shortlink_create.

Backlinks Overview: Backlink overview for any domain — referring domains, backlink count, authority. Priced below typical SEO-data APIs. Pay per call in USDC on Base via x402 — POST https://x402.freeq.one/tools/backlinks_overview.

Search Intent: Detect search intent (informational, transactional, commercial) for a keyword. Priced below typical SEO-data APIs. Pay per call in USDC on Base via x402 — POST https://x402.freeq.one/tools/search_intent.

Text to Image (fast): Generate an image from a text prompt (fast tier, 2-6s). Returns a permanent https URL to the hosted image on api.freeq.one/media/*. Game assets, avatars, illustrations, concept art. Pay per call in USDC on Base via x402 — POST https://x402.freeq.one/tools/image_generate.

Fetch a web page as clean Markdown. Readable main text of any public web page as Markdown, with title, author, date and word count. Boilerplate, menus and ads removed.

Company Enrichment: Company firmographics by domain (preferred) or exact name: description, industry, company type, exact and range headcount, headcount growth by timespan, founding year, headquarters, specialties and LinkedIn URL. A settled no-match returns 404 and is not charged. Pay per call in USDC on Base via x402 — POST https://x402.freeq.one/tools/enrich_company.

OHLCV bars of BTC, ETH, SOL or the CME micro futures NQ, ES, YM (15s, 1m, 5m, 1h) from the Taifoon venue tape, past windows only (up to 1,000 bars a call), with a sha256 digest of the bars. The tape seals a past window, so the same request gives the same bars. The same source is also served over MCP by Cubicle candles (ERC-8004 8453:96559).

Give an agent a durable private mailbox for messages, HTTP callbacks and optional incoming email. A 2 USDC purchase opens 30 days of receiving with 1,000 messages; each accepted message is retained for 30 days. Recover unfinished work after disconnects using scoped access, processing claims and an outbound notification connector. No customer public server is required. No outbound email or hosted agent execution.

RaaS Project Provisioner: Provision a Referral-as-a-Service (RaaS) project — one-time $0.05. Returns project_id and apiKey (hashed server-side; shown once — store now). Then call https://api.freeq.one/v1/raas with x-api-key: mint referral codes, track stats, and credit referrers when referred x402 settlements verify on Base. Pay per call in USDC on Base via x402 — POST https://x402.freeq.one/tools/raas_project_provision.

Inspect, check, split, merge, extract pages, rotate, linearize, optimize, strip metadata, encrypt, decrypt or repair PDFs from public HTTPS URLs. POST /v1/pdf with operation, input_urls and options. Answers JSON: document facts, and for transforms temporary HTTPS URLs to the result PDFs, kept one hour. Up to 50 MB per input. Pay per request in USDC; no account, no API key.