# h402

> Equip your agent with any capability. Pick a route's current default provider once,
> keep that provider pinned until you choose another one, and pay per call from one wallet.
> No keys, no plans, no subscriptions.

h402 is a curated catalog of 159 production-tested APIs an AI agent can pay for by
the call over x402 from a single wallet — one integration, 159 capabilities, pay per
call, zero API keys. Every capability below is listed inline with what it does, what it costs,
and which provider serves it, so this file alone is enough to choose a route. When you are
ready to construct the call, its parameter schema lives in the OpenAPI spec linked below.

## How a call works

Every executable path is provider-pinned:

    /routes/{provider}/{category}/{action}

1. Pick a capability below and read its default provider (or choose an alternate).
   Persist that provider; it never changes underneath you.
2. Call the pinned path with the route's method. GET routes take query parameters;
   POST routes take a JSON body (parameter schemas live in the OpenAPI spec).
   Free routes respond directly. Paid routes first answer HTTP 402 with a
   `PAYMENT-REQUIRED` header describing the exact USDC charge.
3. Sign that charge with your wallet and retry the same path with the
   `PAYMENT-SIGNATURE` header. h402 settles the payment and forwards the call.
4. Every successful response is `{ data, meta?, h402 }`: `data` is the provider's
   native body (never rewritten), `meta` is reserved optional envelope metadata, and
   `h402` carries the receipt. `paidBy` and `upstreamStatus` are always present;
   `ledgerEntryId` is added when the call was actually charged (credit or x402);
   `paymentTransaction` is added only when an on-chain x402 payment settled.
   Send an `idempotency-key` header and reuse it on retries; h402 never
   double-charges a key.
5. Async capabilities return a job handle from the paid submit call; `h402.followUp`
   carries the exact status path to poll (the "async — poll …" routes below).

The fastest client is the CLI (Node 22+):

    npm i -g @h402/cli
    h402 wallet create            # non-custodial local wallet; fund it with Base USDC
    h402 search "web search"      # find capabilities (JSON out)
    h402 quote web/search --provider tempo-firecrawl
    h402 call web/search --provider tempo-firecrawl --json '{"query":"h402 agent payments"}'

Raw HTTP works the same way from any x402-capable client: quote, sign, retry.

## Pricing and payment

- Prices below are the full per-call charge in USD (provider price + the h402 fee,
  the same number the live 402 quotes). "free" routes need no wallet at all.
- Each route's listed price is its default provider's. An alternate provider that
  charges differently shows its own price next to its name.
- Dynamic-priced routes (shown as a range) quote their exact price in the 402
  before you sign anything; nothing is charged until you sign that quote.
- Payment is Base USDC over the x402 protocol from one wallet. There are no
  accounts, API keys, plans, or minimums. An x402 payment settles per call and
  its response carries the on-chain transaction reference.
- A failed provider response is not charged: an upstream error — including
  documented in-body failure signals a provider returns with HTTP 200 — stops
  settlement, so you pay only for calls that actually answered.

## Capabilities

### Crypto (41)
- crypto/network-info: Fetch Ethereum network metadata, current block height, and gas price in one cheap batched call. (GET · $0.00105/call · default provider onesource)
- crypto/contract-info: Inspect an Ethereum contract for token metadata and ERC interface support via read-only calls. (GET · $0.00525/call · default provider onesource)
- crypto/token-balance: Fetch an ERC20 token balance for a wallet through OneSource live Ethereum RPC. (GET · $0.00315/call · default provider onesource)
- crypto/token-holders: Return top holders for a token with provider-native balances and metadata. (POST · $0.021/call · default provider ting, also nansen ($0.0525/call))
- crypto/token-traders: Find addresses that bought or sold a token over a time window, with trade volume and smart-money filters. (POST · $0.0105/call · default provider nansen)
- crypto/token-screener: Screen tokens across supported chains using Nansen market and smart-money filters. (POST · $0.0105/call · default provider nansen)
- crypto/smart-money-holdings: Find tokens held by Nansen smart-money segments across supported chains. (POST · $0.0525/call · default provider nansen)
- crypto/defi-tvl: Fetch TVL, chain breakdown, and history for a DeFi protocol by slug. (GET · $0.00735/call · default provider blockrun-defillama)
- crypto/fear-greed: Fetch the crypto Fear & Greed index history. (GET · $0.00315/call · default provider 2sio)
- crypto/news: Fetch a crypto news feed from the selected provider with its native article fields. (GET · free · default provider news800)
- crypto/funding-rates: Fetch current perpetual funding rates across markets or for a specific asset. (GET · $0.00105/call · default provider ottoai)
- crypto/kimchi-premium: Fetch the Korean exchange premium (kimchi premium) for a crypto asset versus global venues. (GET · $0.0021/call · default provider printmoneylab)
- crypto/token-logo: Resolve the logo image URL for a token by chain id and contract address. (GET · $0.00105/call · default provider hunt-town)
- crypto/price: Spot prices for coins by symbol, name, or market-data ID. (GET · $0.00315/call · default provider 2sio, also coingecko ($0.0105/call), coinmarketcap-x402 ($0.0105/call))
- crypto/market-listings: List and rank cryptocurrencies with current quotes, supply, volume, and market-cap data. (GET · $0.0105/call · default provider coinmarketcap-x402)
- crypto/token-price: Fetch a token's USD price and optional market fields by EVM contract address. (POST · $0.0105/call · default provider coingecko)
- crypto/token-market-data: Fetch token supply, price, valuation, liquidity, volume, and optional top pools by contract address. (GET · $0.0105/call · default provider coingecko)
- crypto/trending-pools: Rank trending decentralized-exchange pools on a network using activity, engagement, liquidity, and security signals. (GET · $0.0105/call · default provider coingecko)
- crypto/dex-pool-search: Search decentralized-exchange pools across networks by pool address, token address, name, or symbol. (GET · $0.0105/call · default provider coingecko)
- crypto/dex-pair-quotes: Fetch current price, liquidity, volume, change, pool, and optional risk data for specific DEX pairs. (GET · $0.0105/call · default provider coinmarketcap-x402)
- crypto/swap-quote: Get a firm 0x swap quote — a signable transaction plus Permit2 typed data and fees — for an ERC-20 swap on an EVM chain. (GET · free · default provider blockrun-zerox)
- crypto/market-stress: Fetch Mycelia Signal's signed market-wide stress index for structural crypto market risk. (GET · $0.0525/call · default provider mycelia-signal)
- crypto/rpc: Send a standard JSON-RPC call to 130+ chains (Ethereum, Base, Solana, Polygon, Arbitrum, Optimism and more) through one paid endpoint. (POST · $0.00105/call · default provider quicknode, also blockrun-tatum ($0.0042/call))
- crypto/gas-prices: Return provider-native EVM gas pricing for a chain. (POST · $0.002625/call · default provider 2sio, also onchainexpat ($0.0105/call))
- crypto/wallet-balances: Get current token balances for wallet addresses or provider-supported entities on supported chains. (POST · $0.0105/call · default provider nansen, also allium)
- crypto/wallet-balance-history: Get historical token balance snapshots for wallet addresses or provider-supported entities over a date range. (POST · $0.0105/call · default provider nansen, also allium)
- crypto/wallet-pnl: Get a realized profit/loss summary (win rate, traded tokens, top performers) for a wallet or entity. (POST · $0.0105/call · default provider nansen)
- crypto/wallet-pnl-details: Get per-token realized and unrealized profit/loss detail for a wallet address or named entity. (POST · $0.0105/call · default provider nansen)
- crypto/wallet-transactions: Get transaction history for wallet addresses on supported chains. (POST · $0.0105/call · default provider nansen, also allium ($0.0315/call))
- crypto/wallet-counterparties: Get the addresses or entities a wallet has transacted with, with interaction counts and volume. (POST · $0.0525/call · default provider nansen)
- crypto/wallet-related: Find wallets related to a given address through shared on-chain activity, with the linking transaction. (POST · $0.0105/call · default provider nansen)
- crypto/perp-screener: Screen perpetual futures markets by volume, buy/sell pressure, open interest and funding over a date range. (POST · $0.0105/call · default provider nansen)
- crypto/perp-leaderboard: Get the perpetual futures trading leaderboard (top traders by PnL, ROI and account value) for a date range. (POST · $0.0525/call · default provider nansen)
- crypto/wallet-perp-positions: Get open perpetual futures positions and margin summary for a Hyperliquid wallet address. (POST · $0.0105/call · default provider nansen)
- crypto/wallet-perp-trades: Get the perpetual futures trade history for a Hyperliquid wallet address over a date range. (POST · $0.0105/call · default provider nansen)
- crypto/smart-money-flows: Get smart-money net token flows across selected chains, showing where smart money is accumulating or exiting. (POST · $0.0525/call · default provider nansen)
- crypto/token-flow-intelligence: Get net flow intelligence for a token by cohort (whales, smart traders, public figures, exchanges, fresh wallets). (POST · $0.0105/call · default provider nansen)
- crypto/token-flows: Get token inflow/outflow time series across DEX and CEX venues over a date range, optionally filtered by label. (POST · $0.0105/call · default provider nansen)
- crypto/token-price-stats: 24h and 1h price high/low and percentage-change statistics for a token. (POST · $0.021/call · default provider allium)
- crypto/token-info: Token metadata and market attributes — name, symbol, decimals, type, price, and supply — by contract address. (POST · $0.021/call · default provider allium)
- crypto/token-search: Search tokens by name or symbol across chains, ranked by volume, trade count, or valuation. (GET · $0.0105/call · default provider coinmarketcap-x402, also allium ($0.0315/call))

### Web (10)
- web/search: Search the web with the selected provider and return its native result fields. (POST · $0.0042/call · default provider tempo-firecrawl, also stableenrich-exa ($0.0105/call), stableenrich-firecrawl ($0.02646/call), you ($0.00525/call), locus-brave ($0.03675/call), exa ($0.00735–$0.02625/call), auorio-tavily ($0.021/call), blockrun-grok ($0.02625–$1.3125/call), sponge-perplexity ($0.0105/call))
- web/contents: Extract clean content from one or more URLs at lower cost for bulk reads. (POST · $0.0021/call · default provider stableenrich-exa, also exa ($0.00105–$0.315/call))
- web/answer: Get a search-grounded answer for a question. (POST · $0.0105/call · default provider stableenrich-exa, also blockrun-grok ($0.02625–$1.3125/call))
- web/scrape: Scrape a single URL and return the selected provider's native content fields. (POST · $0.0021/call · default provider tempo-firecrawl, also stableenrich-firecrawl ($0.01323/call), parallel ($0.0105/call))
- web/site-map: Discover URLs on a website through Firecrawl's direct map endpoint. (POST · $0.0021/call · default provider tempo-firecrawl)
- web/screenshot: Capture a screenshot of any public URL, returned as a base64 JPEG or PNG. (GET · $0.021/call · default provider hugen)
- web/url-to-pdf: Render any public URL into a clean, print-quality A4 PDF. (GET · $0.021/call · default provider hugen)
- web/github-repository-search: Search GitHub repositories for open-source projects, developer tools, and competitive intelligence. (GET · $0.0105/call · default provider scout)
- web/npm-package-search: Search npm packages for JavaScript and TypeScript libraries, frameworks, and developer tools. (GET · $0.0105/call · default provider scout)
- web/pypi-package-search: Search PyPI packages for Python libraries, frameworks, and developer tools. (GET · $0.0105/call · default provider scout)

### Maps (9)
- maps/places-search: Search places by text query with basic fields. (POST · $0.021/call · default provider stableenrich-googlemaps)
- maps/places-search-enriched: Search map places with full details from the selected provider. (POST · $0.042/call · default provider auorio-googlemaps, also stableenrich-googlemaps ($0.084/call))
- maps/nearby-search: Search places near a geographic location with basic fields. (POST · $0.021/call · default provider stableenrich-googlemaps)
- maps/nearby-search-enriched: Search places near a geographic location with ratings, reviews, contact info, and atmosphere data. (POST · $0.084/call · default provider stableenrich-googlemaps)
- maps/place-details: Get basic details for a specific Google Maps place ID. (GET · $0.021/call · default provider stableenrich-googlemaps)
- maps/place-details-enriched: Get full details for a specific Google Maps place ID, including ratings, reviews, contact info, and atmosphere data. (GET · $0.0525/call · default provider stableenrich-googlemaps)
- maps/ip-geolocation: Look up geolocation, network type, and country metadata for an IPv4 or IPv6 address. (GET · $0.00105/call · default provider auorio-ipstack)
- maps/geocode: Convert a place name into latitude/longitude coordinates. (POST · $0.00525/call · default provider locus-openweather)
- maps/reverse-geocode: Convert latitude/longitude coordinates into nearby place names. (POST · $0.00525/call · default provider locus-openweather)

### People (4)
- people/people-search: Search professionals by role, location, industry, or provider-native query, including business contact data when available. (POST · $0.294–$29.4/call, exact price quoted in the 402 · default provider stablepeopledata-pdl)
- people/person-resolve: Resolve a person identity to Minerva identifiers and LinkedIn profile hints from an email or phone. (POST · $0.021/call · default provider stableenrich-minerva)
- people/email-verify: Verify whether an email address is deliverable. (POST · $0.0084/call · default provider locus-hunter, also stableenrich-hunter ($0.0315/call))
- people/phone-lookup: Look up carrier, line type, and country for a phone number. (POST · $0.0126/call · default provider blockrun-twilio)

### Business (1)
- business/company-enrich: Enrich company records with firmographics, industry, funding, location, and social profile data. (POST · $0.105/call · default provider stablepeopledata-pdl)

### Social (14)
- social/x-user-profile: Look up a public X/Twitter user profile by username. (GET · $0.00105/call · default provider glim-sh, also twit-sh ($0.00525/call))
- social/x-following: Return public accounts followed by a given X/Twitter user. (GET · $0.0042/call · default provider glim-sh, also twit-sh ($0.0105/call))
- social/x-followers: Return public accounts that follow a given X/Twitter user. (GET · $0.0042/call · default provider glim-sh, also twit-sh ($0.0105/call))
- social/x-user-tweets: Return the latest public tweets from a given X/Twitter user timeline. (GET · $0.0042/call · default provider glim-sh, also twit-sh ($0.0105/call))
- social/x-tweet-search: Search public X/Twitter tweets with keyword, account, hashtag, and date filters. (GET · $0.00525/call · default provider glim-sh, also twit-sh ($0.0063/call))
- social/tiktok-profile-async: Fetch a TikTok creator profile by handle: bio, stats, and verification. (POST · $0.063/call · default provider stablesocial · async — poll social/scrape-status)
- social/tiktok-search-async: Search TikTok posts by keywords with engagement metadata. (POST · $0.063/call · default provider stablesocial · async — poll social/scrape-status)
- social/instagram-profile-async: Fetch an Instagram profile by handle: bio, follower counts, and recent activity. (POST · $0.063/call · default provider stablesocial · async — poll social/scrape-status)
- social/reddit-search-async: Search Reddit posts by keywords with scores and subreddit context. (POST · $0.063/call · default provider stablesocial · async — poll social/scrape-status)
- social/instagram-search-async: Search Instagram posts by keywords with engagement metadata. (POST · $0.063/call · default provider stablesocial · async — poll social/scrape-status)
- social/reddit-subreddit-async: Fetch posts from a subreddit by name. (POST · $0.063/call · default provider stablesocial · async — poll social/scrape-status)
- social/tiktok-posts-async: List a TikTok creator’s posts by handle with engagement metadata. (POST · $0.063/call · default provider stablesocial · async — poll social/scrape-status)
- social/instagram-posts-async: List an Instagram user’s posts by handle with engagement metadata. (POST · $0.063/call · default provider stablesocial · async — poll social/scrape-status)
- social/scrape-status: Poll a StableSocial scrape job (TikTok, Instagram, Reddit) until it completes and returns the data. Free relay — the proxy signs the provider's wallet-identity challenge for you. (GET · free · default provider stablesocial · follow-up for social/tiktok-profile-async, social/tiktok-search-async, social/tiktok-posts-async, social/instagram-profile-async, social/instagram-search-async, social/instagram-posts-async, social/reddit-search-async, social/reddit-subreddit-async)

### Weather (4)
- weather/current: Fetch current weather conditions by coordinates from the selected provider. (GET · $0.00105/call · default provider auorio-google-weather, also locus-openweather ($0.0063/call))
- weather/forecast: Fetch daily weather forecasts by coordinates from the selected provider. (GET · $0.00105/call · default provider auorio-google-weather, also locus-openweather ($0.0084/call))
- weather/air-quality: Fetch the air quality index and pollutant concentrations for a latitude and longitude. (GET · $0.0063/call · default provider locus-openweather)
- weather/overview: Get a human-readable weather summary for a latitude and longitude (today or tomorrow). (GET · $0.0105/call · default provider locus-openweather)

### Finance (15)
- finance/sec-filings-search: Search SEC EDGAR filings by query, form type, date range, and entity. (POST · $0.0084/call · default provider locus-edgar)
- finance/stock-quote: Fetch a current stock quote for a US-listed public equity ticker. (POST · $0.004725/call · default provider 2sio, also locus-alpha-vantage ($0.0084/call))
- finance/exchange-rates: Fetch current or timestamped currency exchange rates. (GET · $0.00315/call · default provider 2sio)
- finance/global-stock-quote: Fetch a current stock quote for international markets (KR, JP, GB, HK, DE, FR and more) from Pyth feeds. (GET · $0.00315/call · default provider blockrun-pyth)
- finance/fx-quote: Fetch the latest institutional bid/ask quote for a currency pair. (GET · $0.00525/call · default provider hugen-tick)
- finance/stock-snapshot: Snapshot multiple US-listed tickers in one call: price, change, and intraday metrics for each. (GET · $0.021/call · default provider x402stock)
- finance/insider-trades: Aggregated SEC Form 4 corporate-insider buy/sell activity for a public company by ticker. (GET · $0.0105/call · default provider smartmoney)
- finance/congress-trades: Recent US House/Senate periodic-transaction-report stock trades, optionally filtered by lookback window. (GET · $0.0105/call · default provider smartmoney)
- finance/stock-movers: The day's biggest US equity gainers or losers with price and percent change. (GET · $0.021/call · default provider x402stock)
- finance/treasury-yields: The daily US Treasury par yield curve (Constant Maturity Treasury rates). (GET · $0.0105/call · default provider x402stock)
- finance/fund-holdings: Latest 13-F portfolio snapshot for a tracked hedge fund manager: current positions and changes. (GET · $0.0105/call · default provider smartmoney)
- finance/risk-alerts: Run BlackSwan Flare for current market risk alerts and signal explanations. (POST · $0.0105/call · default provider blackswan-flare)
- finance/systemic-risk: Run BlackSwan Core for a macro-style risk environment assessment and key factors. (POST · $0.0315/call · default provider blackswan-core)
- finance/research-async: Submit an agentic financial research job and poll for the cited report. (POST · $0.1155–$0.525/call, exact price quoted in the 402 · default provider you · async — poll finance/research-async-status)
- finance/research-async-status: Poll a You.com financial research job until the cited report is ready. (GET · free · default provider you · follow-up for finance/research-async)

### Domains (7)
- domains/dns-lookup: Look up DNS records (A, AAAA, MX, TXT, NS, CNAME) for a hostname. (GET · $0.002625/call · default provider 2sio, also robtex ($0.00525/call))
- domains/check: Check domain availability and current registration price. (POST · $0–$0.105/call, exact price quoted in the 402 · default provider stabledomains)
- domains/whois: WHOIS registration lookup for a domain: registrar, creation/expiry/updated dates, and status. (GET · $0.0105/call · default provider hugen)
- domains/technology-profile: Analyze the technology stack detected on a domain with BuiltWith. (POST · $0.05775/call · default provider locus-builtwith)
- domains/company-url: Find likely website domains for a company name using BuiltWith. (POST · $0.05775/call · default provider locus-builtwith)
- domains/related-websites: Find websites related to a domain using BuiltWith relationship data. (POST · $0.05775/call · default provider locus-builtwith)
- domains/domain-seo-stats: Get a domain's latest SEO and PPC stats (organic keywords, traffic, ad spend, rankings). (GET · $0.0105/call · default provider tempo-spyfu)

### Security (4)
- security/ip-reputation: Check an IP address against blocklists and network reputation signals. (GET · $0.00525/call · default provider robtex)
- security/domain-trust: Analyze website trust using WHOIS, SSL, domain pattern, and recommendation signals. (POST · $0.042/call · default provider onchainexpat)
- security/domain-signals: Fetch BuiltWith domain signals such as indexing, live technologies, ecommerce, payment options, and parked-domain status. (POST · $0.03675/call · default provider locus-builtwith)
- security/token-scan: Scan a token contract across 60+ chains for honeypot, buy/sell/transfer tax, ownership renouncement, mint/blacklist/pause, proxy, and scam-pattern risk — a pre-trade safety check. (POST · $0.0315/call · default provider quickintel)

### Utilities (3)
- utilities/random-integer: Generate a cryptographically secure random integer within a caller-provided range. (GET · $0.0105/call · default provider sociologic-rng)
- utilities/image-to-svg: Vectorize a raster image (PNG or JPEG) into a clean, editable SVG — pass the image by URL or base64, priced per conversion. (POST · $0.021/call · default provider svgsmith)
- utilities/upload-slot: Buy a one-shot upload slot: get a presigned URL to upload a single file and the public URL it will be served from. (POST · $0.00525–$2.1/call, exact price quoted in the 402 · default provider stableupload)

### Research (5)
- research/compute: Get a short computed answer from Wolfram|Alpha for math, science, unit, and factual queries. (GET · $0.0105/call · default provider sponge-wolfram)
- research/web-task-async: Start an autonomous multi-hop web research task; returns a run id to poll for the report. (POST · $0.105/call · default provider parallel · async — poll research/web-task-async-status)
- research/web-task-async-status: Poll a web research task by run id; returns the report once the task is complete. (GET · free · default provider parallel · follow-up for research/web-task-async)
- research/x-research: Run adaptive, citation-grounded research over X (Twitter) with a high-reasoning agent and return evidenced posts, accounts, and optional prediction-market context. (POST · $1.05/call · default provider quotient)
- research/x-account-research: Build an adaptive, citation-grounded profile of one X (Twitter) account: interests, beliefs, risk posture, and reasoning style over a trailing window. (POST · $1.05/call · default provider quotient)

### AI (14)
- ai/chat-completions: Call OpenAI-compatible chat completion models through a request-priced paid API. (POST · $0–$5.25/call, exact price quoted in the 402 · default provider blockrun)
- ai/image-generate-async: Submit an async StableStudio image-generation job from a text prompt; poll ai/image-generate-async-status with the returned jobId for the completed image assets. (POST · $0.021–$0.525/call, exact price quoted in the 402 · default provider stablestudio · async — poll ai/image-generate-async-status)
- ai/image-generate: Generate one image synchronously from a text prompt with fal.ai FLUX schnell over Tempo MPP; returns final image URLs inline. (POST · $0.00315/call · default provider tempo-fal)
- ai/video-generate-async: Generate a short video from a text prompt with StableStudio Grok Video, then poll the returned job id until completion. (POST · $0.1575–$0.7875/call, exact price quoted in the 402 · default provider stablestudio-video · async — poll ai/video-generate-async-status)
- ai/image-generate-async-status: Poll a StableStudio image-generation job from ai/image-generate-async until it completes and returns image asset URLs. Free relay — the proxy signs the provider's wallet-identity challenge for you. (GET · free · default provider stablestudio · follow-up for ai/image-generate-async)
- ai/video-generate-async-status: Poll a StableStudio video generation job until it completes and returns video asset URLs. Free relay — the proxy signs the provider wallet-identity challenge for you. (GET · free · default provider stablestudio-video · follow-up for ai/video-generate-async)
- ai/text-to-speech: Synthesize natural speech audio from text with a choice of ElevenLabs voice and model, via BlockRun. (POST · $0.00105–$2.205/call, exact price quoted in the 402 · default provider blockrun-elevenlabs)
- ai/pdf-to-markdown: Parse a PDF, image, or office document into clean Markdown chunks with layout and tables preserved (OCR included) — ready for RAG and embeddings. (POST · $0.0525/call · default provider sponge-reducto)
- ai/pdf-ocr: OCR a scanned or image-only PDF into text, page by page. Use for documents with no embedded text layer (scans, photos, faxes). (GET · $0.0525/call · default provider hugen)
- ai/pdf-extract: Extract text, tables, and metadata directly from a digital PDF's text layer — no OCR, fastest and lowest cost. Use for natively generated or exported PDFs. (GET · $0.021/call · default provider hugen)
- ai/news: Fetch the AI-filtered Open News feed (latest 50) from news.800.works. (GET · free · default provider news800)
- ai/math-ocr: Extract LaTeX, Mathpix Markdown, and text from an image of math, science, or chemistry content. (POST · $0.00525/call · default provider locus-mathpix)
- ai/music-generate-async: Submit a full-length multi-section song job and poll for the finished audio; supports vocals or instrumental-only prompts. Suno — higher-fidelity songs (~3 min, returns 2 variations). (POST · $0.11025/call · default provider locus-suno · async — poll ai/music-generate-async-status)
- ai/music-generate-async-status: Poll a Suno music-generation job by job id; returns the audio URLs once ready. Companion to ai/music-generate-async. (POST · $0.00525/call · default provider locus-suno · follow-up for ai/music-generate-async)

### Travel (8)
- travel/flight-deals: Search Google Flights for cash-price offers between airports, including provider-native flight arrays, price insights, and short-lived booking_token or departure_token values. (GET · $0.021/call · default provider stabletravel-google)
- travel/airline-lookup: Search AviationStack airline records by airline name, IATA code, or ICAO code. (GET · $0.00525/call · default provider tempo-aviationstack)
- travel/aircraft-type-lookup: Search AviationStack aircraft type records, such as IATA/ICAO aircraft model codes. (GET · $0.00525/call · default provider tempo-aviationstack)
- travel/airplane-lookup: Search AviationStack registered-airplane records by registration, model, or aircraft code. (GET · $0.00525/call · default provider tempo-aviationstack)
- travel/airport-directory: Search AviationStack airport records by airport name, city, IATA code, or ICAO code. (GET · $0.00525/call · default provider tempo-aviationstack)
- travel/flight-board: Look up the current-day live arrivals or departures board for an airport. (GET · $0.00525/call · default provider tempo-aviationstack)
- travel/flight-schedule: Look up future planned flight schedules for an airport by date and arrival/departure direction. (GET · $0.00525/call · default provider tempo-aviationstack)
- travel/flight-routes: Search AviationStack airline route records by departure/arrival airport, airline, or flight number. (GET · $0.00525/call · default provider tempo-aviationstack)

### Predictions (14)
- predictions/prediction-markets: Search cross-venue prediction markets across Polymarket, Kalshi, Limitless, Opinion, and Predict.Fun. (GET · $0.009975/call · default provider blockrun-predexon, also quotient ($0.0105/call))
- predictions/polymarket-leaderboard: Rank the top-performing Polymarket wallets (smart money) by realized profit. (GET · $0.009975/call · default provider blockrun-predexon)
- predictions/polymarket-pnl: Fetch the profit-and-loss summary and time series for a Polymarket wallet. (GET · $0.009975/call · default provider blockrun-predexon)
- predictions/polymarket-positions: List the open and historical market positions held by a Polymarket wallet. (GET · $0.00525/call · default provider quotient, also blockrun-predexon ($0.009975/call))
- predictions/market-forecast: Fetch a calibrated YES probability, thesis, and citations for one covered prediction market, with optional prior-forecast history. (GET · $0.0105/call · default provider quotient)
- predictions/market-intelligence: Look up full forecast intelligence for up to ten covered prediction markets by market key, slug, or condition ID in one call. (GET · $0.00525/call · default provider quotient)
- predictions/mispriced-markets: Rank covered prediction markets where the calibrated forecast diverges from the verified live venue price by at least a minimum spread. (GET · $0.021/call · default provider quotient)
- predictions/trade-signals: List published prediction-market trade signals with side, lifecycle status, conviction, capacity, and the latest calibrated probability. (GET · $0.0105/call · default provider quotient)
- predictions/market-sources: Fetch the cited articles and X posts behind up to ten covered prediction markets within a lookback window. (GET · $0.00525/call · default provider quotient)
- predictions/asset-markets: Resolve a company, commodity, crypto asset, index, or fund and list its linked prediction markets with venue odds and calibrated probabilities. (GET · $0.0105/call · default provider quotient)
- predictions/asset-price-outlook: Read calibrated price outlooks (p10-p90 bands, bear/base/bull scenarios, and a directional take) for commodities, crypto assets, and equities by horizon. (GET · $0.0105/call · default provider quotient)
- predictions/latest-forecasts: Chronological feed of new forecasts and newly associated articles and X posts across all covered prediction markets, up to six hours back. (GET · $0.021/call · default provider quotient)
- predictions/covered-markets: List every active prediction market with a recent forecast or a published signal, with venue quotes, tags, and forecast recency, filterable by topic and venue. (GET · $0.00525/call · default provider quotient)
- predictions/featured-signal: Fetch the single trade signal currently featured: an operator pin when set, otherwise a deterministic pick over active, live-priced signals with a recent forecast update. (GET · $0.00525/call · default provider quotient)

### Real Estate (6)
- real-estate/property-search: Search US property records by address, city+state, zip, or coordinates. (POST · $0.03465/call · default provider locus-rentcast)
- real-estate/value-estimate: Estimate a property's market value (AVM) with supporting comparable sales. (POST · $0.03465/call · default provider locus-rentcast)
- real-estate/rent-estimate: Estimate a property's long-term rent (AVM) with supporting comparable rentals. (POST · $0.03465/call · default provider locus-rentcast)
- real-estate/sale-listings: Search active for-sale property listings by area or coordinates. (POST · $0.03465/call · default provider locus-rentcast)
- real-estate/rental-listings: Search active for-rent property listings by area or coordinates. (POST · $0.03465/call · default provider locus-rentcast)
- real-estate/market-statistics: Get aggregate sale and rental market statistics for a zip code. (POST · $0.03465/call · default provider locus-rentcast)

## Machine-readable catalog
- [OpenAPI 3.1 spec](https://h402.hunt.town/openapi.json): every capability with parameter schemas, prices, and x402 payment info.
- [Catalog JSON API](https://h402.hunt.town/api/catalog): live capability list with usage stats.
- [Catalog search](https://h402.hunt.town/api/catalog/search): find a task by keyword (`?q=`).
- [Agent capability registry](https://h402.hunt.town/.well-known/ai-catalog.json): the full catalog as an Agentic Resource Discovery (ARD) manifest.
- [ARD browse](https://h402.hunt.town/api/ard/agents): the same entries as a JSON list, filterable by `?category=` and `?tag=` (`?limit=` up to 500, default 100).

## Start here
- [Agent skill (SKILL.md)](https://raw.githubusercontent.com/Steemhunt/h402-cli/main/SKILL.md): point your agent at this to onboard end-to-end — it creates a wallet, funds it with Base USDC, and starts calling tools on its own.
- [h402 CLI on GitHub](https://github.com/Steemhunt/h402-cli): source, README, and issues for the `@h402/cli` client.
- [Docs](https://h402.hunt.town/docs): human quickstart.

## Optional
- [Full machine-readable catalog](https://h402.hunt.town/openapi.json): all 159 capabilities with input schemas — fetch when you are ready to construct a specific call.