All projects on Base matching “check”

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.

Package vulnerability check — check one exact open-source dependency version or purl against OSV, enrich CVE matches with CISA KEV known-exploited signals, and report fixes, severity, and provenance.

Advanced startup name check: domains across 13 TLDs, GitHub, npm, PyPI, X, YouTube and Instagram handles, available .com name variants, notable Wikidata name collisions, plus ready-to-call links for App Store, Google search and EU trademark checks.

Is this vendor or domain safe? One call runs cert, DNS, email security, ransomware leak-site listing and vendor status checks and returns a verdict (safe, caution, risk, incomplete). $0.04 USDC on Base. Not charged if every check fails or input is invalid.

Deterministic technical and on-page SEO audit for one public HTTPS URL. Checks title presence/length, meta description, H1 and heading structure, canonical, indexability/robots directives, viewport, language, JSON-LD structured data, internal links, image-alt coverage, compression and HTTPS; returns score, grade, checks and metrics. Machine-accessibility signals are separate and unscored.

Minneapolis rental license check — is this property licensed? Property due diligence agent for Minneapolis Minnesota (Hennepin) housing compliance open data. GET ?address= (street 1-120 chars) → compliance_verdict (licensed_clean|licensed_with_violations|unlicensed|condemned_or_boarded), rental license status/tier/units/expiration, violation cases, condemned/boarded. Live City JSON. Tenant screeni

Check Cloudflare's official status source for current incidents, component health, and scheduled maintenance before an agent retries, deploys, or escalates.

DNS TXT record lookup — a domain's TXT records as a clean JSON list: SPF, DKIM and DMARC policy strings plus site-verification and domain-ownership tokens, for email-authentication and domain-verification checks.

A stateful, multi-chain spending session for AI agents. One session enforces a hard USDC budget cap across every tool call, with a verifiable receipt and running ledger for each payment — not a one-shot budget check, but persistent spend governance with a full audit trail. The gateway enforces the cap for the paying wallet on Stacks and Base. USDC on Base (standard x402) or Stellar (via the AgentP

Given a company website domain, returns a compact company card: the business name and the page element it came from, a generic role contact address (info@, sales@, support@ ...) only if the site publishes one, never a personal address, and the names of up to 10 technology platforms the site runs. Same scrape and evidence check as /scrape, without the evidence detail, at half the price. Free prompt

Is this domain malicious or named by ransomware? Domain threat check. $0.02 USDC on Base per call. Matches the hostname, parent domains and resolved IPv4 against ThreatCluster's high-confidence 30-day IOC feed and looks up ransomware leak-site claims. Returns one verdict: listed, claimed, listed_and_claimed or no_known_threat. Don't use this for many domains; use /v1/bulk-threat-check.

Use before buying or approving an unknown ERC-20 token on Base. Rule-based check straight from the chain, without AI - contract and proxy (upgradeable?), owner and whether it was renounced, risky owner functions in the bytecode (mint, pause, blacklist, fees, trading switches), owner share of supply and DEX liquidity on Uniswap V2/V3 and Aerodrome in USD. Returns ok, caution or avoid with reasons i

Wallet sanctions check for a validated EVM or Solana address. Returns a direct verdict, recommended action, match evidence, source lists, and an explicit AML-scope caveat.

Check an unsigned Solana transaction before signing. Send its base64 serialization; malformed input is rejected before payment. We simulate it on mainnet and return ALLOW, WARN or BLOCK with SOL and token balance changes and reasons, including dangerous approvals, owner changes, excessive outflows and redirected swaps. Solana only. The published sample is synthetic and only shows an HTTP 402 quote

SSL/TLS certificate check: expiry, issuer, SANs, chain validity, hostname match, negotiated protocol/cipher, and weak-algo warnings for a public HTTPS host. Clean JSON.

Validate a number by the Luhn (mod-10) algorithm — the scheme behind credit/debit card numbers and many IDs. Spaces and hyphens are ignored. A mismatched check digit is a successful { valid: false }.

Payment receipt and settlement proof for x402 and agent payments, by Liquid Logic X. Input: a Base USDC tx hash (optional memo). Output: JSON proof recorded onchain on Arc mainnet (proofId, from/to/amount, Arc tx, refId) plus a public verify link anyone can check. $0.02 USDC on Base, charged only when a proof is returned. Your paying wallet must be the tx sender or recipient. Liquid Logic X also r

Email authentication posture check: parses SPF, DMARC and DKIM plus MX for any domain and grades deliverability/anti-spoofing gaps (SPF +all, SPF >10 lookups, DMARC p=none, missing DKIM). Clean JSON for deliverability and security-ops automation.

Call before paying an unfamiliar x402 endpoint, or to pick between providers. $0.02, usually <1 s plus one probe: live unpaid probe (status, latency, TLS, PAYMENT-REQUIRED decoded and sanity-checked), seller reputation from indexed on-chain USDC payments to its Base payTo (24 h/7 d count, distinct payers, total and median USD, top-payer share), Bazaar listing and price, and a looks legit/caution/a

Is this Base token safe to buy? Simulates a real buy and sell (honeypot + hidden tax test), checks owner powers (mint, blacklist, fee changes), whale concentration, liquidity lock and scam lists. Returns scam / high_risk / caution / low_risk with reasons.

OrionCMD Checks: Certificate status from CT logs + live HTTPS probe. Issuer, validity, days left, % of lifetime used, renewal cadence and a renewal-stall heuristic from Certificate Transparency logs (NOT the live served cert), plus a live HTTPS pass/fail probe from Cloudflare's edge.

Can I sell this Base token? Honeypot detector and rug check: simulates a real buy and sell (Uniswap V2/V3/V4 incl. Zora, Clanker, Doppler) and returns is_honeypot, buy/sell tax, exit depth, mint/blacklist/pause/fee powers, owner, proxy, deployer history, holders, token age, a verdict + score + model odds. GoPlus-compatible fields included.

Agent Reputation Check by Agentropolis: give a payTo and/or an agent / A2A / MCP URL. Returns owner, verified domain, real outside buyer history, wash flags and trust score from Agentropolis. Says when coverage is limited. Deterministic, no LLM.

Payload Check: data-quality filter for agents. Send any payload (tool/API output, scraped page, LLM answer, generated code, JSON, CSV) and get a 0-100 quality score, pass/warn/fail, tags and concrete issues: invalid or truncated JSON (with auto-repair), JSON Schema mismatches, syntax errors, bot-challenge/captcha/404 scrapes, LLM refusals, placeholders, repetition loops, mojibake. Deterministic, n

US trademark screening for print-on-demand phrases. Checks 1-10 phrases against live USPTO marks in chosen Nice classes, default 9, 16, 18, 21, 24, 25, and returns a risk verdict high, medium, low or none with the matching marks, their status and owners. $0.01 per call.

Web page to markdown (read URL as clean text) for LLM agents: main content only (no nav, cookie banners, ads), with title, description, author, dates, language, headings, internal/external links and JSON-LD types, PLUS a prompt-injection scan of the page (visible text, hidden HTML, comments, invisible Unicode) so your agent knows whether the content tries to give it orders. Fetched from Cloudflare

npm package safety gate: vulnerabilities, malware advisories, typosquatting, install-script risk.

Audit a URL's HTTP security headers over a single body-free (HEAD) request. Grades Strict-Transport-Security, Content-Security-Policy, X-Frame-Options, X-Content-Type-Options, Referrer-Policy and Permissions-Policy, flags information-leak headers (Server, X-Powered-By), and returns the parsed values plus advisory warnings. Clean JSON for security and pentest automation.

Did this Solana payment really arrive? Verifies that a finalized mainnet transaction credited the exact amount of a token to the payee. Signed VERIFIED, REFUTED, UNCONFIRMED or NOT_FOUND with a per field breakdown. $0.01 in USDC on Base. Free preview: GET /settle/preview

Is this WordPress plugin, npm package or PyPI project abandoned? Status, 0-100 abandonment-risk score, months since last update, and the signals behind it.