Explore APIs

Topic ranking. Ranked social topics for a window. Returns topics + window_hours.

Leaderboard / ranking of autonomous AI trading bots, ordered by verifiable alpha vs a HODL 50/50 BTC+ETH benchmark. Each bot stakes USDC and pre-commits its strategy on-chain, so its track record and PnL are provable, not self-reported — built for agents deciding which bot to copy-trade or allocate to. Returns ranked bots plus registry-wide totals (stake, volume, trades).

Base gas price: base fee, priority fee p25/p50/p90 over the last 20 blocks, ready-to-sign maxFeePerGas and maxPriorityFeePerGas for slow, normal and fast inclusion, an L1 data-fee upper bound, and the estimated total cost in wei of an ETH transfer and an ERC-20 transfer, live from Base mainnet RPC with the block number. Required: none; optional blocks (5 to 50). $0.0015 USDC on Base. Failed read,

Hacker News user profile: karma, account creation date and age, about text (HTML stripped), number of submissions and the 10 most recent submission ids.

Fewest land border crossings between two countries, with the countries passed through, or NO_LAND_ROUTE.

Checks whether a signature was made by a claimed EVM address: EIP-191 personal_sign messages, EIP-712 typed data or a raw 32-byte digest, verified by ecrecover for wallets or ERC-1271 isValidSignature for smart-contract wallets (Safe, Coinbase Smart Wallet) on Ethereum, Base, Arbitrum, Optimism or Polygon. Returns validity, method, recovered signer and digest. Free sample: https://onchain-health.m

Social handle availability check

Returns Company.

Seller-side check that an Allowance vault receipt on NEAR paid a given account at least a given amount, bound to the seller request hash, at final finality. Returns valid or the reason (not paid yet, wrong payee, amount, asset or request, unknown receipt, not a vault) and the vault code hash read at the same block.

Returns verified, citation-backed facts about new AI model releases, benchmark scores, and protocol changes, each with source URLs and confidence.

Find a UK company by name. Returns the top 5 matches from the Companies House register with number, name, status and incorporation date. Taster tier - cheap enough to try on a whim before paying for a full profile or verdict.

Returns matching company names with IDs plus links to their profile and intelligence endpoints — use it to resolve a search into specific companies before paying for deeper data

DeFi copy-trading vault discovery on Hyperliquid, GMX, dYdX and Gains Network — TVL, APR, risk profile and smart-contract assessment. For on-chain investing agents.

Rank up to 6 countries on one indicator (GDP, growth, inflation, unemployment...) with the year of each value.

Country profile from Wikidata: capital, population, area, languages, currency, leaders, ISO codes, borders, with property ids.

Profile a Base address in one call instead of four to six lookups. Returns contract or externally owned plus code size, proxy detection across all seven slot layouts including the legacy OpenZeppelin slot Base USDC uses, the resolved implementation, ERC-165 and behavioural ERC-20 detection, token metadata, requested ERC-20 balances, and denylist hits. Answers unknown rather than guessing, and null

Scholarship search for student and scholarship agents. Returns matched scholarships by academic profile, major, country, and level.

Agent profile lookup. Returns trust score, component breakdown, feedback counts, and metadata for any ERC-8004 agent.

Find the SaaS tools and APIs an AI agent can use on its own for a task, such as "send an invoice". Each result gives the tool's agent level (0 to 5), whether an agent gets in without a person, what our agent got done in it and where it stopped, from a real drive of the product. $0.01 a search.

Look up SEC EDGAR company information by ticker, CIK, or company name. Returns company profile and recent filings.

Fragrance note-profile lookup — note pyramid (top/middle/base), accord breakdown, molecule-level odor descriptors, who it suits, and occasion/climate fit for any perfume or cologne, grounded in fragrance community consensus and The Good Scents Company ingredient data.

Agent intents: verify signup email · is disposable? · check DMARC before outreach · role-account risk. One call returns syntax, MX, SPF, DKIM, DMARC, disposable, role, provider, score 0-100, light domain enrichment, and recommend accept|challenge|reject with reasons. Production 0.10 USDC; demo free rate-limited. x402 on Base for AI agents.

Detailed profile for a single AI agent (by chain + agentId)

Board-game recommendations by group profile — player count, complexity tolerance, theme, playtime, budget, and ages, grounded in current web reviews/discussion (never BoardGameGeek data). Returns a ranked shortlist with fit reasoning, honorable mentions, and honest avoid-list.

Which free Sentinel-1/2, ASTER, and Landsat scenes cover a target area, plus a geological remote-sensing guide, for exploration and geology agents. Returns scene availability and which sensor maps which alteration mineral.

Macro dashboard in one call: 13w/5y/10y/30y Treasury yields, dollar index, gold, WTI crude, VIX. JSON.

Biomarker / blood test interpretation (lab result analysis) for longevity and health agents. Reads any lab value (ApoB, hs-CRP, HbA1c, IGF-1, Lp(a), testosterone, ferritin) through the lens of longevity science: what it means for biological aging and disease risk, and how to improve it. 50+ key longevity biomarkers, worldwide. Health intelligence, not medical advice.

Tip amount, total, and per-person split for a restaurant bill.

PhoneAgent — full directory of services with rentable SMS phone numbers for AI agents. Returns 1,000+ service aliases: Telegram, WhatsApp, Google, Facebook, Instagram, Twitter/X, Discord, Apple, PayPal, OpenAI/ChatGPT, Claude, plus crypto/Web3 onboarding (Alchemy, Coinbase, Binance, Bybit, OKX, Kraken, Robinhood, ...). Use `other` for any platform not separately listed. Each entry shows the alias

Find a person's verified work email from first name, last name and company domain. Live SMTP check against the company's mail server, catch-all detection. Charged only when a mailbox is verified; misses return 4xx and are not charged.