All projects on Base

For model cascades: is the small model's answer usable, or should the larger model be paid? Detects refusal, evasion, off-topic answers, contradiction and incompleteness; decides accept, review or escalate. Does not fact-check without a source: provide the source to check substance.

Live prices with 5-minute, 1-hour, 4-hour and 24-hour change and 24-hour volume for the top 50 crypto coins, refreshed every minute.

A signed, timestamped read from Base mainnet: whether a transaction landed and in which block, an address's ETH and USDC balance, or the current block height and gas price. Use the tx query when you paid over x402, received settlement_pending, and need it resolved — the transaction is in a block with status 1, or it is not. Read through a commercial node, not the public RPC. Verify with soren.com/

New vulnerabilities in one place: CISA Known Exploited Vulnerabilities from the last 14 days (due dates, ransomware use), CVEs published in the last 24 hours (CVSS, severity, CWE, vendor/product), and reviewed GitHub advisories (ecosystem, package, vulnerable and patched versions). Rebuilt every hour. $0.01 per call, no account. Free 24h-delayed sample: GET https://ioswarm.io/api/v1/feeds/security

Token honeypot / security risk check before buy or approve. Input ERC20 contract + chain. Returns verdict avoid|caution|ok, is_honeypot, sell/buy tax, blacklist, owner powers. Use for honeypot detection, scam token screening, rug check, token security on Base Ethereum BSC Arbitrum Optimism Polygon.

Call before buying or swapping into any Base token. Simulates a real buy and sell in its deepest pool (honeypot, buy/sell tax, round-trip loss), reads owner powers (mint, pause, blacklist, tax, proxy), liquidity, age and holder concentration. Returns SAFE / CAUTION / DANGER / SCAM with every risk explained. Failed checks are not charged.

Active ICS campaign tracker. Pass ?sector=electric&status=active. Returns campaigns currently targeting a sector with actor attribution, start date, targeted geography, TTPs in use, and CVEs being exploited. No free equivalent for live campaign status.

Unfold a domain's SPF policy (RFC 7208) into merged IPv4 and IPv6 blocks: include and redirect followed as a receiver counts them (10 lookups, 2 void lookups, PermError stops), a and mx resolved with /cidr, sources per block, exists, ptr and macros listed apart, and very broad blocks flagged. Use when an agent must know which servers may send. Input: ?domain=example.com.

Deterministic prompt-injection firewall and honeypot scrubber for AI agents. Sanitizes untrusted text and blocks detected wallet-draining commands before context ingestion.

Cross-exchange spread tick — ONE $0.02 call returns the live executable spread for a pair across Binance, Coinbase, Kraken, Bybit: best bid venue, best ask venue, spread in bps, and a deterministic TRADE / THIN / NONE verdict. Built for arbitrage monitoring loops; escalate to /api/crypto ($0.07) for the full CEX arbitrage read with fees and transfer paths. 30s freshness, no LLM in the path.

SSRF-safe public GET with status, headers, and size-capped JSON/text body for agent tool use

Rule-based multi-label text classification over a fixed taxonomy (urgency, financial_promise, credential_request, crypto_mention, cta, legal_offer, medical_claim, seo_spam, url_shortener, press_release, question, has_contact). Deterministic - identical text always yields identical labels.

Historical price series for an asset slug (capped data points).

One-call market snapshot for a daily briefing or a pre-trade check: BTC/ETH/SOL spot with 24h change, the crypto fear & greed index, and SPY/QQQ/DIA/IWM quotes. Cheaper than the three parts bought separately. Each source reports its own status; if every source fails the call returns 503 and is not charged. JSON.

Independent second opinion on an x402 resource: compares the seller's Bazaar listing and x402 manifest against the live observed price, payTo, network, method and paywall. Field-level evidence with source, timestamp and hash, plus a signed receipt. / Segunda opinión independiente sobre un recurso x402: compara la ficha pública del Bazaar y el manifiesto x402 del vendedor con el precio, destino, re

Classify a caller-supplied operation claim against caller-supplied evidence under deterministic rules and return a machine-readable handoff receipt. Use this when an orchestrator needs a consistent completion state before accepting an agent's work. VERIFIED_COMPLETE means the submitted evidence supports the submitted claim; QSL does not independently observe the underlying real-world action.

US hospital self-pay (cash) prices posted under the federal price transparency rule. Search 28 common services (imaging, blood tests, emergency room visit levels, EKG, colonoscopy) by CPT or HCPCS billing code or plain words, near a ZIP code, city and state, or latitude/longitude. Returns each hospital's posted cash price, distance, price file date, data flag and financial assistance (charity care

Search plus page-to-markdown in one $0.01 call: ranked results from Wikipedia, Hacker News, GitHub and a web engine, with clean readable article text. Pass q= to search, or url= to extract any single page. Free /demo and /quickstart.

Total US public debt outstanding, to the penny, latest available

New pair scan seconds after launch: Uniswap v4 pools read straight off Base before any indexer has them - the launched token address, whether anyone has funded it yet, and whether its hook is a launchpad's or bespoke code shipped with this token

Request an https URL and report whether it is reachable, its status, every redirect hop with timings, key and security headers (HSTS, CSP and others), and the TLS certificate with its issuer, the names it covers and the days until it expires. An unreachable URL is a result too, with the reason.

Deterministic Phase 1 alpha, resilience, treasury-strength, and regime-fit signals for one issuer.

Transcribe text to Unicode braille (grade-1 / uncontracted English braille), with capital and number signs. Characters with no grade-1 representation are clean 400s.

Get detailed information for a specific Kalshi event by ticker symbol

Verify factual claims and check whether cited sources support them. Fact-check statistics, dates and source attributions in agent research and reports against web evidence, preserving reporting periods, units and population groups. Returns a verdict, explanation and cited sources; /v2/verify links evidence to source IDs. 0.20 USDC via x402 v2 on Base. Model-assessed; no signup or API key.

x402-native person discovery for autonomous agents. Given search criteria (title, seniority, company, industry, or location) instead of a known name, returns a list of matching people with title, seniority, department, decision-maker status, LinkedIn URL, and location. Structured JSON. Paid per request via x402.

Check a Ethereum wallet's ERC-20 approvals: allowances for 8 major tokens (USDC, USDT, WETH, DAI...) to common spenders (Permit2, Uniswap Universal Router v4, Uniswap Universal Router, Uniswap SwapRouter02...); flags unlimited approvals.

CoinStats global cryptocurrency market data — total market cap, 24h volume, BTC dominance, % changes

Use when an agent needs the best live price for a stock across venues before trading. For 1-10 tickers: perp mark and mid on trade.xyz (Hyperliquid), Aster, Lighter and OKX, xStocks and Ondo token prices per share, last US close, the session reference price, gap % vs it, cross-venue spread, best bid/ask and freshness. Unpaid calls get 402; bad or unknown tickers get 400/404 before any charge. Erro

Polymarket prediction markets with live probabilities: question, per-outcome probability, 24h and total volume, liquidity, best bid/ask, one-day price change and end date. Top markets by volume, liquidity or soonest end, or free-text search.