Deterministic static pattern scan of Solidity smart-contract source text - a fixed ruleset flagging tx.origin authentication, delegatecall, selfdestruct, unchecked low-level calls, unchecked .send(), floating pragmas, block-timestamp dependence, weak block-derived randomness, value-call reentrancy surface, inline assembly, ecrecover, and missing SPDX headers. Returns line-anchored findings with severities.

Look up one X (Twitter) account by username: id, display name, bio, account creation date, verification status and type, location, link, protected flag, and public metrics (followers, following, tweet count, listed count).

Bridge exploit track record: for one bridge, its hack history (incidents, total USD lost, funds returned, worst technique); with no bridge, a ranked leaderboard of every bridge hack by USD lost. Sourced from DefiLlama's hack dataset, joined and normalized by us.

Market-intelligence aggregate over a normalized RWA sub-category: total TVL, the top products ranked with their TVL share, issuer concentration and the leading product's growth trend. Called without a category it returns a market-wide roll-up of every sub-category's TVL and product count. Cited to the open-data source.

Neural (embedding-based) web search over a curated web index, which finds pages by meaning rather than keyword overlap. Use it when a keyword engine returns the wrong thing: conceptual questions, 'pages like this one', or niche technical writing. Returns up to 10 results with title, URL, published date and author. Complements the keyword web search rather than replacing it.

Ask a question and get a written answer with the sources it was drawn from. The engine searches its index, reads the pages and composes the answer, returning the citation list (title, URL, published date) alongside it so every claim can be checked. Model-backed: the answer text is generated, the citations are retrieved.

Live news search as clean JSON: recent articles ranked with title, URL, snippet, age, source and a breaking flag, with a freshness filter. Use it for current events and headlines where a general web index lags.

Insider buying/selling activity for a stock: Form 4 trades, the latest close, and recent SEC filings in one call. Insider alert skill pack: one x402 payment runs 3 underlying tools (edgar-insider-trades, stock-quote, edgar-filings); partial-success per step.

Google's native generateContent wire on the auto tier. Send Gemini's own request shape (contents, systemInstruction, generationConfig, function declarations) and get Gemini's own response shape (candidates, usageMetadata) back. Point a Google GenAI SDK at this gateway and pay per request with USDC, no account. Also answers the Google-shaped path /v1beta/models/<model>:generateContent. Omit the model and the auto tier routes the prompt.

Normalized company financials from SEC EDGAR XBRL filings. Give a ticker or CIK and get income statement, balance sheet and cash flow lines mapped to one clean schema, each value cited to its real XBRL tag and filing. Compact cited JSON instead of megabytes of raw XBRL.

Mint a signed JSON Web Token (HMAC: HS256 default, HS384, HS512) from a payload + secret. Pairs with jwt-decode/jwt-verify to complete the trio. Deterministic - same payload, secret, and alg always produce the same token.

Decode a JWT without verification: header (algorithm), payload claims (subject, issuer, expiration), expiry status, and time remaining. (Decoding only - signatures are NOT verified.)

All token balances for any address in one call, from an indexed chain-data API - ERC-20 + native on EVM, SPL on Solana; no per-token contract calls, no RPC wrangling. Networks: base, ethereum, base-sepolia, solana, solana-devnet. Symbols/decimals populated for whitelisted tokens (USDC always included).

Anthropic Messages API over x402 - point the Anthropic SDK (or Claude Code / the Agent SDK) at base_url https://agent402.tools/v1/auto and pay $0.01 per call in USDC, no API key, no signup. Same models, caps and price as this tier's /chat/completions route; any model here is served through the Messages wire (Claude natively, others translated). Depth: `effort` (low..max) on Claude 4.7+ and Haiku 5.5, thinking.budget_tokens on older Claude.

Contract-test a JSON payload in one call: validate it against your schema, infer the schema the payload actually implies, diff the two to expose drift, and return a normalized pretty-print. Schema guard skill pack: one x402 payment runs 4 underlying tools (json-validate, json-schema-infer, json-diff, json-format); partial-success per step.

One issuer of tokenized real-world assets by id: aggregate tokenized market cap, 24h cap change and 24h volume, plus every token it issues with symbol, name and contract address per platform (e.g. Coinbase's Base-chain tokenized Apple, Nvidia, Meta, Alphabet). Use rwa-issuers for ids. Cached in-process for 5 minutes. Data provided by CoinGecko.

Spot quote for swapping through a Uniswap V3 pool at the current tick. amountIn is in human units (not wei). zeroForOne=true sends token0 → token1; false sends token1 → token0. Returns amountOut net of the pool's fee tier. NOTE: this is a single-tick spot quote - slippage from depleting concentrated liquidity is NOT modeled. Use for indicative pricing; for production swaps quote against the Uniswap SDK.

"Can I reach this counterparty this week?" - country facts, this year's public holidays, working days remaining this week, and what time it is there right now, in one call. Locale brief skill pack: one x402 payment runs 4 underlying tools (country-info, public-holidays, business-days, timezone-convert); partial-success per step.

Domain ranking snapshot: observed keywords, positions, ranking URLs and search volume for one domain and selected location/language. Save the JSON for a later, separately requested comparison; no automatic monitoring.

Aggregated market snapshot: Ethereum mainnet gas price (Gwei), ETH/USD spot price, and the latest Base mainnet block number and timestamp — combined into one call. Optional ?ref=<address> pays that wallet a 20% referral cut, sent as a separate on-chain transfer after settlement.