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Access the exclusive horror story collection (pay-per-read).

Speech-to-text for one immutable audio or video artifact, returning normalized text and timed segments for audio-to-text or video transcription workflows.

Extract normalized forms, tables, signatures, or layout from a document.

Agent-ready satellite observations for any coordinates. Returns PNG image URLs and scene metadata for true color, vegetation, water, thermal, or radar analysis.

+3 more from Satellite & GeoRisk x402 API

Get today's curated Word of the Day (definition + part of speech).

Pay for a lighthearted developer roast generated on-demand.

Get a random interesting joke. Secured with x402 payment protocol on Base mainnet.

Academic and scientific paper search API. Search research papers and scholarly literature across arXiv, PubMed, OpenAlex, Crossref, and Semantic Scholar in one call, deduplicated into a ranked result set: title, authors, year, venue, abstract, citation count, DOI, and direct PDF link. Query by keyword or restrict to one source; filter by year range; sort by relevance, recency, or citations. Keyless.

Weather forecast and air quality for any location worldwide. Returns current conditions plus a 16-day daily weather forecast - temperature highs and lows, precipitation, and wind - alongside air-quality readings including AQI, PM2.5, PM10, and ozone, for any latitude and longitude. Daily forecast resolution. Keyless, via Open-Meteo.

Multi-chain EVM gas price oracle for AI agents — 17 chains (Ethereum, Base, Arbitrum, Optimism, Polygon, BNB, Avalanche…). One x402 call returns slow/standard/fast EIP-1559 tiers as DROP-IN maxFeePerGas + maxPriorityFeePerGas in wei (plug straight into a viem/ethers tx, no conversion, exact even on sub-gwei L2s), plus base fee, head block, and fullness, from a live eth_feeHistory call. Pass ?chain= to switch chains.

Historical token price time series by ticker symbol, CoinGecko id, or chain:address (BTC, ETH, SOL, or base:0x…): a dated array of prices for up to 20 coins, with selectable span (number of points) and period (1d, 1h, 1w). For charting, backtesting, and trend analysis. Pairs with /v1/crypto/price for the live spot. Sourced from DefiLlama.

ENS name resolution in both directions on Ethereum mainnet. Pass name to resolve an ENS name to its address (forward), or pass address to get that address's primary ENS name (reverse, forward-verified so spoofed reverse records are rejected). Read straight from the ENS registry. Use it to turn vitalik.eth into an address, or to label a raw address with a human-readable name.

+11 more from Onchain Query API

Crypto token price and market data. Returns the live price of one or many tokens by coin id or ticker symbol, in a chosen vs-currency, with market cap, 24-hour volume, and 24-hour price change. For crypto price lookups, portfolio valuation, and market data feeds. Keyless, via CoinPaprika.

Compute cryptographic digests and HMACs deterministically: MD5, SHA-1, SHA-256, SHA-384, SHA-512, output as hex, base64, or base64url. Add a "key" for HMAC. Built for checksums, content addressing, and signature verification. Inputs are hashed and discarded. POST a JSON body like: {"text":"hello world","algorithm":"sha256","encoding":"hex"}

Gives you official United States inflation numbers from the government's BLS Consumer Price Index. Ask for the newest reading, a specific month in the past, or a whole range of months, and get back clear percentages for overall inflation and 'core' inflation (which ignores food and energy prices), plus a plain-English summary sentence.

Discover DeFi yield opportunities across 80+ networks — 3,300+ staking, lending, vault, and RWA yields from Lido, Aave, Morpho, and more. Filter by token, network, yield type, or provider and sort by APY or TVL. Returns yield IDs (needed by every other tool) with APY, TVL, lock-up/cooldown periods, and KYC gating. Start here.

+11 more from Yield.xyz MCP

Currency conversion API for AI agents — convert an amount between currencies using official ECB reference-rate data; one-shot x402 call with optional volume credits.

+20 more from SCRIPTMASTERLABS

Paste-ready bid draft (0.01 USDC cheapest). Free radar first: GET /v0/sample-radar then POST {brief}.

+4 more from Agent Utilities

Deterministic JSON repair for agent tool outputs, with optional JSON Schema validation. Built for tight agent loops at micropayment prices.

+2 more from Hermes Commerce

Rich market data for one or more cryptocurrencies: rank, 24h high/low, volume, ATH, and more

Latest-day breakdown of composite signal trigger stats: per-composite triggered_asset_count, breadth %, top-triggering assets. Snapshot of where the 9 composites are actually firing across 200+ assets right now. Complements /signals/composite/breadth (universe-wide) with per-composite drill-down.

+64 more from CRYPTYX

Entry tier of the multifamily deals feed: every active listing at card level — address, price, units, advertised cap rate, listing URL, freshness — without the computed underwriting or scoring. Same coverage, cheapest way to evaluate the feed. Same query filters as the full feed. Every field typed; a query that matches nothing returns free — you never pay for a blank.

+3 more from dwelldata.io

The Anthropic Messages wire priced from the request itself: the 402 quotes this exact body, from $0.001, with upto buyers settling actual usage under the quote. Use it when an agent built on the Anthropic SDK, or Claude Code, needs any supported model paid per call with no account.

BTC Volatility Risk Premium — DVOL minus Parkinson realized vol (72h). Positive = sell-vol opportunity, negative = buy-vol. Response includes regime classification (LOW/MID/HIGH), raw inputs for audit (DVOL, RV_72h, RV_6h, spot), timestamp, and open methodology URL.

+3 more from regimeshift.xyz

Render a page in a real headless Chromium browser (JavaScript executed) and return its main content as clean markdown. Use it for single-page apps and JS-heavy sites where a plain fetch returns an empty shell.

Fetch any public web page and return its main readable content as clean Markdown or plain text plus metadata (title), stripping nav/ads/boilerplate (trafilatura). Optional JS rendering via headless browser for SPAs; markdown or text output. Robots-respecting, public content only — the reader/scraper building block for RAG and agent pipelines.

Top DeFi yield pools with APY/TVL, filterable by chain (DefiLlama).

+1 more from Crypto Data Agent

Search for upcoming concerts. Supports city, date range, genre, and artist filtering.

+4 more from mechamanda.com

Describe a task in plain language (or name a tool slug) and the Smart Order Router resolves the best-matching tool across this catalog and the open x402/MPP seller index, then runs it in the same call and returns the result with a receipt. Flat price covers any tool listed at $0.005 or less. Use it when an agent wants one paid request that both finds and executes the right capability.

Solana priority fee estimates via x402: micro-lamports per compute unit for global, Jupiter, Raydium or custom account keys. Lookback 1-150 slots (default 50), 20-second cache. Network fee evidence, not a wallet check; no transaction inclusion guarantee.

+5 more from scry.solanahub.de