Explore APIs

ERC-20 token snapshot in one call on Base, Ethereum, Arbitrum, Optimism, Polygon, Avalanche, BNB Chain: USD price, FDV, total DEX liquidity, top pools (Uniswap V2/V3, Aerodrome, Velodrome, PancakeSwap, Sushi, QuickSwap, Trader Joe...), supply-in-pools/burn/owner holder hints, proxy/owner/mint/blacklist/fee risk flags. Live on-chain reads. 0.003 USDC.

Real-time crypto sentiment for a ticker symbol (e.g. BTC, ETH, SOL) from 9 crypto news RSS outlets (CoinDesk, Cointelegraph, Decrypt, Bitcoin Magazine, The Block, CryptoSlate, NewsBTC, CryptoPotato, The Defiant) and the Fear & Greed Index. Headlines from the last 72h, weighted toward the newest. Returns a bullish/bearish/neutral label (or 'insufficient recent news'), score, sample size and the top

Base token risk report with an AI-written plain-English summary. Checks what most scanners miss: whether the creator or launch wallet can pull the pool liquidity (incl. Uniswap V4), copycat tokens reusing a bigger token's ticker, and Clanker/Doppler/B20 launch platforms. Also honeypot and taxes, mint/pause/blacklist powers, upgradeable proxy, ownership and holders. Returns a 0-100 score, LOW/MEDIU

Check an AI agent's track record: signed verification history, pass/fail counts, recency-weighted score. $0.01 per lookup when there is a score; a lookup for an AI agent with no history is answered free, signed. USDC via x402 v2 (Base/Solana).

Echoes a JSON {message} back; live demand probe for x402 settlement.

Highest-APY pool on Base for one asset, junk-farm filters applied

Call this before your agent buys a Solana token. One call runs five isolated checks: token risk (sell-side skim and fee/hook controls), top-holder concentration (the factor behind our bundle score), stablecoin lookalike detection, xStock status (issuer mint list, lookalikes and issuer objections), and optionally an x402 payee check (verdict ok, caution, do_not_pay or unknown). Unknown mints return

Live check of any Hyperliquid wallet from public data: account, positions, leverage, profit total/30/90 days, drawdown, trades and liquidations (90 days), risk with data gaps. Facts only, not investment advice, no guarantee of profit or safety.

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

Mizan report card for any of 3,650 x402 operators (57,020 endpoints on file) — this call: api.loyalspark.online. Liveness across surveys, latency, x402 conformance, price demanded at the door vs price advertised in the catalogue, and for endpoints Mizan actually paid for, whether they delivered, refused, or charged and delivered nothing — with the on-chain tx. Replace the last path segment with an

Hotel acquisition underwriting — stabilized or bridge-to-perm value-add. Quarterly ADR x occupancy RevPAR build, other/ancillary revenue, PIP capital, construction loan with capitalized interest, permanent loan sized on min(stabilized-value LTV, purchase-price LTV, DSCR), and exit. Returns unlevered and levered project IRR and MOIC. Reconciled to a SHA-pinned Excel model — see /hotel-acq/reconcili

Read-only Base ERC-20 risk heuristics (honeypot/tax/liquidity/ownership). Data only, not advice. Free public Base RPCs. No charge on empty/failed. Port of amp token-risk.

Detect whether an arbitrage opportunity exists in a set of token exchange rates (multi-pool negative-cycle scan). Cheap boolean + magnitude signal for trading agents. POST a swap-rate graph, get back whether a profitable cycle exists and how large — without the path.

Before your agent negotiates or shares data with another agent, make both prove they qualify. Open a channel with on-chain conditions (a USDC balance, a governance token, a verified attestation). Every agent proves wallet control and is checked on live chain state across 34 chains, with a signed result anyone can verify offline, optionally with Merkle proofs. Re-check on demand; whoever stops qual

Check an unsigned Base mainnet transaction before signing or broadcasting. Simulates with eth_call, estimates gas, checks sender balance and target bytecode, decodes supported token transfers and approvals, flags unlimited approvals and suspicious transaction shapes, and returns PASS, REVIEW, or FAIL. Never signs or broadcasts.

dappgrade score — front-end integrity verdict for an onchain app, looked up by contract address. Inspects the app's public web front-end, not contract bytecode or admin control. Returns ok / caution / avoid / unknown with the coverage the verdict rests on.

URL-to-Markdown web extraction and context compression for AI agents. Fetch a public web page and return clean, task-relevant, citation-verifiable LLM context with exact excerpts, locators, hashes, and estimated tokens saved. Use before an agent summarizes, answers questions from, or cites a long or noisy URL. Deterministic and model-free. Public HTML only; no PDFs, logins, or JavaScript-only page

Token flow check: every ERC-20 Transfer of one token into and out of an address (a vault, treasury, fee receiver or wallet) since block N, with totals, net, top counterparties, the largest transfers and the balance now. Use it to check claims like 'x% of every trade lands in the vault'. Ethereum, Base and Robinhood Chain. Independent, by Blockpin; not a Claus Network service.

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

Real-time US stock & crypto price snapshots with 24h change, 52-week highs/lows and data source. Use when an agent needs current market prices for a whitelisted symbol such as NVDA, BTC or NEAR. Pay $0.001 USDC per call on Base mainnet.

Is this crypto entity MiCA-authorised in the EU/EEA, in which register, with what status? Query params: name (string) OR lei (20-character LEI). JSON: match_confidence (exact|strong|weak|none), authorised (boolean), flagged_noncompliant (boolean), matches[] with register, legal_name, lei, home_member_state, competent_authority, status, services[], authorisation_date. Data source: ESMA Interim MiCA

Buy agent energy (kWh) up to a max price — matches cheapest resting sellers, settles USDC to seller wallets on Base L2

Freeze Event Monitor analyses only the evidence supplied by the caller. It does not claim to query a chain, identify a legal status or replace an independent audit. Missing signals lower confidence and are listed explicitly; every classification includes the exact thresholds used.

Overwing guardrail: check text before you send, post, or act on it. Content moderation, PII detection, confidential leak detection, toxicity, self-harm and severity in ~150 ms. Returns a verdict plus one recommended_action (block / redact / review / allow) with calibrated confidence. Pass context (recipient, channel, owns_contact_info) with the outbound-message set. $0.002 USDC, no account.

Celo ERC-20 risk check from live chain state. Returns a single verdict (LOW_RISK/CAUTION/HIGH_RISK, summary, oneLiner, reasons) plus market data (DexScreener/GeckoTerminal). Covers owner/renounced, paused, supply, known stablecoins (USDC, USDT, USAT, USDm), proxies (EIP-1967/1822/OZ/1167) with implementation analysis: verified source, risky selectors, upgrade authority (EOA vs Safe/timelock), forw

Builder Inclusion Analyzer analyses only the evidence supplied by the caller. It does not claim to query a chain, identify a legal status or replace an independent audit. Missing signals lower confidence and are listed explicitly; every classification includes the exact thresholds used.

Current Ethereum mainnet gas price, in Gwei

Look up an ENS name or an Ethereum address and get back the matching one, automatically figuring out which direction you need.

Airdrop Eligibility Verifier analyses only the evidence supplied by the caller. It does not claim to query a chain, identify a legal status or replace an independent audit. Missing signals lower confidence and are listed explicitly; every classification includes the exact thresholds used.

Check whether a domain's TLS/SSL certificate is valid, trusted, and not expiring before connecting to it. Performs a live handshake and returns a 0–100 score and tier (VALID/WEAK/EXPIRING/EXPIRED/UNTRUSTED/INVALID) with chain trust, days-to-expiry, signature algorithm, TLS version, and cipher quality. Use before submitting credentials, posting to a webhook, or following a payment link, to catch ex