Explore APIs

Read current gas price and base fee, live from Base mainnet, for a fraction of a cent. No API key, no account — a wallet is the only requirement, and you are charged only if the read succeeds. Plain unsigned data; the attested version of chain reads is /v1/oracle/onchain. Answers are read at the moment of the call and stamped with the block they came from where applicable.

A short plain-text summary of one Wikipedia article, with its image and last update. Content is CC BY-SA 4.0.

Hash text, strings, or UTF-8 payload data with SHA256, SHA384, or SHA512. Compute a cryptographic hash, checksum, or digest for payload integrity, content fingerprinting, cache keys, and verifying that data has not changed.

Current mid price for every Hyperliquid asset (perps + spot) in one call — a fast whole-venue price snapshot.

Use first to see which venues list a ticker and get the exact symbol before /quote, /funding or /gaps. Every stock perp and tokenized stock agents can trade: trade.xyz, Aster, Lighter and OKX perps plus xStocks and Ondo tokens (2,400+ markets), with venue, symbol or mint, underlying, type, live and tradable-now flags. Same data free at GET /catalog. Errors: 400 unknown venue, 402, 502. Data, not a

Verdix standard ($0.10): call before larger or repeated payments to an EVM address on Base, when an address-age read is not enough. Sanctions, scam/phishing lists, address poisoning and contract/deployer signals, plus on-chain behaviour analysis. Returns safe/caution/danger with reasons.

Seller wash risk and wallet reputation for a Solana x402 merchant: wash label, fleet %, payer count, plus tier + score. 0.001 USDC. No signed V7 receipt (use GET /v1/intel/trust for the portable proof). Free preflight is allow|warn|block only. Sponsored Solana accepts require a payment client that honors accepts[].extra.feePayer (for example @x402/svm ExactSvmScheme); AgentCash cannot settle that

Deutschland auf Bundeslandebene inklusive der Gemeinde-Sonderfälle, Österreich auf Bundeslandebene, die Schweiz auf Kantonsebene. Bewegliche Feste werden aus dem Osterdatum gerechnet, nicht aus einer Tabelle gelesen.

Split an IPv4 or IPv6 CIDR block into subnets of a longer prefix, in order, at most 256 at a time; a larger split is refused before anything is computed. Offline. Use when an agent must plan an address layout or hand out subnets. Input: ?cidr=192.0.2.0/24&prefix=26.

Block header lookup: number, hash, timestamp, miner, tx count, gas used/limit and base fee. Latest by default, or any block number, safe or finalized.

Verify that an agent wallet can complete an x402 v2 payment using USDC on Base mainnet before purchasing production art data.

US direct primary care (DPC), concierge and cash-pay doctor directory with published adult monthly membership prices. Search by ZIP code, city and state, or latitude/longitude within a radius. Filter by language, telehealth, home visits, accepting new patients, specialty, credential, board certification, practice model and maximum monthly price. Returns practice, clinician, address, phone, website

Extract article text and metadata from a URL

Semantic content moderation, not a word list: profanity (even disguised, any language), harassment, hate, sexual content, threats, self-harm, scams. Per-category scores, allow/review/block, configurable ignore list.

Pay $0.01 for an instant verifiable random number backed by a Wesolowski VDF chain with on-chain Merkle anchor. For the free commit-reveal protocol: POST /v1/rng/commit (free), then GET the reveal_url returned — reveal is always free. Bias-resistant; do not construct reveal paths yourself.

Chess Daily answer check — legally validates a complete UCI principal line against the pinned daily puzzle.

Checksum tier (deterministic, no LLM): verifies the exact bytes served at a public URL hash to a claimed sha256, by independent double re-fetch. Use it to confirm a download or artifact matches its published checksum. Bodies up to 3 MB; dynamic pages return unverifiable, never a guess. sha256 only. First 100 checks per client are free: resend with header X-Use-Free-Allowance: yes and no payment to

Current temperature and wind for a city from Open-Meteo (live forecast data)

Payment integration check for 0.001 USDC; no external data lookup. Returns time, rail, network mode and free/paid capabilities. HTTP payment options can include Base, Polygon, Arbitrum and XDC; the challenge lists currently available networks for each transport. The receipt identifies the paid network and transaction. Business/professional use only. Terms: https://402rates.com/data-terms/

DNS A record lookup — resolve any hostname or domain to its IPv4 addresses, returned as a clean JSON list. For host resolution, connectivity and uptime checks, IP-reputation enrichment and infrastructure mapping.

Polymarket prediction market odds — live prices for any market by free-text search or slug: outcomes, prices, spread, 24h volume, liquidity, resolution date.

Notarize AI output: a signed Ed25519 attestation of the model response plus sha256 content hash, receipt token, and Merkle anchor status for one AI inference — a cryptographic receipt for inference that lets you prove an AI said X and verify model output authenticity, checkable free by anyone, anytime.

Query official FEC historical U.S. presidential popular-vote results for 2016, 2020 and 2024 by state, DC or nation. Preserves named major-party candidates and a labeled all-others bucket. Supports future sourced unofficial snapshots with explicit status and timestamps; unavailable contests are rejected before payment. Free coverage: /elections/catalog.

UK procurement notices. Public procurement notices from the official Find a Tender OCDS feed, flattened to one queryable schema. Blind Mode: no contact or personal data. One call returns one page of matching records as JSON (25 by default, per_page up to 100) with the total count and the last refresh time; the query parameters filter the records.

Payment flow verification for agents integrating x402: confirms your wallet and payment channel work before you spend on a real endpoint. Category: infra.

Aggregate insider-trading market statistics: total Form 4 trades tracked, trades in the last 24h, top 20 most-traded tickers and top 20 most-active insiders by filing count and dollar volume. A one-call overview of where insider activity is concentrated right now. Returns JSON.

Raw RDAP registration record for a domain, returned as structured JSON.

Status of any transaction on 7 EVM chains: pending / success / reverted, confirmations, block time, from/to, value and the all-in fee (including the OP-stack L1 data fee on Base and Optimism). Use it to confirm a payment or deployment landed. You only pay for successful reads: invalid input, not-found and upstream errors cancel settlement.

Break a braille string into its cells and the raised-dot numbers (1–8) of each cell.

Return an advisory ALLOW, DENY, or ESCALATE decision by comparing a bounded action request with authority, constraints, and evidence supplied by the caller. The service does not execute or legally authorize the action, access a wallet, validate identity, or independently observe facts.