Explore APIs

Ethereum mainnet ERC-20 verdict: AI grade and on-chain facts for one token contract. Not financial advice. Returns: a rule-graded token verdict on one token contract: grade (BASED/MID/COOKED/RADIOACTIVE, a stated rule over the contract's own state), a one-liner and a roast, and the facts read: code size, name, symbol, decimals, supply, owner(), proxy slots; plus the deepest Uniswap V3 pool's USD

A Hyperliquid account's perpetuals state — open positions, margin summary and withdrawable balance, for any 0x address.

Official public holidays by country and year, with regional subdivisions, localized names and normalized dates.

The catalog of Hyperliquid prediction-market outcomes and their metadata.

On-chain spot price of ETH or BTC in USDC from the deepest Uniswap v3 pools on Ethereum mainnet, read from a full node at the latest block (no third-party price feed). Pairs: ETH-USDC, BTC-USDC. Use it as an independent, verifiable price reference; it reflects the pool price, not an exchange average.

Is the stock market open right now? Deterministic market-status and trading-hours for the major global exchanges — NYSE, NASDAQ, LSE, Xetra, Euronext, TSE/JPX, HKEX, SSE, ASX, TSX, SIX, NSE/BSE. Returns is_open plus why it is shut (weekend, holiday, lunch break, pre/after-hours), the exchange local time, and the next open and close as ISO timestamps. Pass ?at= for any past or future moment. Zero e

mcp.digest, sold by Taifoon: 9 sellers behind this wall, the best-ranked one answers; code checks the answer before you are charged (a failed answer is not charged), Jev grades it after. Price 0.006795 USDC.

Live EIP-1559 gas on Ethereum, Base, Arbitrum, Optimism, Polygon or BNB: base fee, slow/standard/fast priority tiers from the last 20 blocks, ready-to-use maxFeePerGas values, and estimated cost of an ETH transfer, ERC-20 transfer, approve and Uniswap swap.

Who is this company, officially? Global LEI lookup and legal-entity search against GLEIF, the ISO 17442 registry behind KYB, MiFID and EMIR reporting. Verify an LEI's checksum and registration status, or search 2.9M+ entities by name and country to find the right identifier. Flags LAPSED, DUPLICATE and RETIRED registrations that a naive first-hit lookup would wire into a KYB record. Deterministic:

Real-time L2 sequencer health across 12 chains (Base, Arbitrum, Optimism, zkSync, Blast, Linea, Mantle, Mode, Scroll, Taiko, Polygon zkEVM, Casper). Returns kernel-level P99/P95 RTT from eBPF probes, revert ratios (Base and Arbitrum via eth_getBlockReceipts), gas pressure, and execution recommendation.

Check a counterparty before paying: OFAC SDN, phishing and drainer feeds, a live watch of drainer infrastructure, transaction simulation and injected-instruction analysis. Returns a score and a signed ES256 attestation.

Find US court cases, opinions and dockets naming a business, with case name, court, date, citation, docket number and nature of suit.

Solana Program Derived Address (PDA) calculator — derive the canonical off-curve address and bump from bounded public seeds offline, without RPC or key handling.

Supported perpetual-futures trading pairs — the list of symbols (BTCUSDT, ETHUSDT, …) the funding-rate scanner and signals cover, as a clean snake_case envelope.

Scan untrusted text (a web page, email, tool output or document) for prompt-injection and agent-hijacking patterns before it reaches an LLM. Returns a risk level, score, findings with offsets and a sanitized copy. Deterministic, sub-50ms.

Use when an agent is about to pay another agent and needs one finished answer first: should you pay this payee? PayCheck ($0.50) runs Flow's whole checker stack on the payee — payee verdict (kind, activity, contract safety), wallet approval-exposure audit, and recent USDC settlement history on Base — returning one grade (ALLOW / REVIEW / BLOCK, 0-100), a verify_status, all checks, the evidence, an

Why did my transaction fail? Give a chain and tx hash; get status, decoded method, gas used vs limit, fee, token transfers, events and, for failed transactions, the decoded revert reason (Error(string), Panic codes, custom errors resolved by signature) with a plain-language fix. Pending transactions get a stuck-transaction diagnosis (nonce gap, underpriced fee) and the replace/cancel recipe. Chain

Home battery storage ROI and payback calculator — Powerwall vs alternatives, backup-power value, with the IRA 30% tax credit and state incentives applied. For homeowner and solar agents.

Goldsky Edge RPC — prepaid balance, funds ~1000 requests at 5 atomic units each

Detects the likely real file format from filename, file creation time, file size, and the first 200 bytes of the file. Identifies common formats such as PDF, DOCX, XLSX, CSV, JPG/JPEG, PNG, WEBP, HEIC, TXT, HTML, MP3, WAV, MP4, AVI, MPEG, and WEBM, as well as about 15,000 other file types.

Current space-weather conditions — normalized NOAA SWPC Kp, solar wind, magnetic field, and X-ray flux used for solar-flare monitoring, with observation times and freshness.

Tavily web search — POST { query, max_results?: 5 } on search.gedx402.com; ranked results via Tavily API. $0.042 USDC per request. AM-winning shape at /v1/search. Agent search: tavily, web search, serp, search lite, semantic search.

US federal regulations in the pipeline — documents on public inspection at the Federal Register, filed by agencies and scheduled to publish, with type, agencies, filing time and the scheduled date. Use to see tomorrow's rules, notices and executive orders before they are published.

Top up $0.1 USDC and get $0.11 of agentsvc.io credit (10% bonus), valid 180 days. Returns a bearer token: send "Authorization: Bearer <token>" with any /api/v1/proxy/{slug} call or MCP request instead of an x402 payment. Calls are then paid from the balance without an on-chain step (a few milliseconds). Failed calls are refunded. To add to an existing token, send it in the Authorization header wit

Live USGS river-gauge tick, deterministic. Answers "what is the flow at this gauge right now", "is this river high or low vs this week". Returns the latest streamflow (discharge, cfs) and gage height (ft) for one USGS site plus the 7-day min/max range, reading count, site name and coordinates, straight from USGS instantaneous values. Unknown sites 404 before payment. No LLM, no key, public domain.

Use when an agent needs any web page as clean LLM-ready markdown (no ads, nav, or scripts) for RAG, research, or summarizing. Example input: GET /x402/v1/web-extract?url=https://example.com/article. Example output: {"url":"https://example.com/article","title":"…","markdown":"# Title\n\nBody text…","wordCount":812}

FuelScout cheapest-fuel query (station-level where open data exists, regional averages otherwise)

Weighted interval scheduling solver — exact maximum-weight compatible job scheduling with half-open intervals and a complete dynamic-programming certificate.

IP risk check (beta) for logins and checkouts: is a public IPv4 address on the Spamhaus ZEN blocklist (spam, botnets, hijacked networks) or a Tor exit node? Includes the network owner. Returns a low, medium or high risk level.

Global news article search by GDELT — normalized fulltext search across worldwide media (query syntax: phrases, OR, sourcecountry, theme, tone) returned as a clean snake_case envelope.