433 services carry this tag in their source record. Tags come from the provider, not from us — a tag is a claim about what the service does, not proof that it does it well.
A deterministic Base chain identity and official USDC contract-presence check. No request body. Not a token-risk report, transaction simulation, or payment proof.
Approx expected log bankroll growth for a binary bet fraction. Call when comparing bet sizes by growth rate under true_prob (advisory). Returns expected log growth as deterministic JSON for $0.001 USDC via x402 on Base....
Lookup country name from a static ISO3166-1 alpha-2 table subset. Call when labeling country codes offline. Returns name and code as deterministic JSON for $0.001 USDC via x402 on Base. First-party local math only—no RPC...
Normalize multi-outcome prices into a probability simplex. Call when turning raw multi-outcome quotes into probs that sum to 1. Returns normalized probs and sum as deterministic JSON for $0.001 USDC via x402 on Base. Fir...
Deduplicate a list preserving order. Call when you unique agent keys without sorting. Returns unique items and count for $0.001 USDC via x402 on Base. No network, no keys, no retention; first-party local JSON only. Resul...
Absolute value of a number. Call when you need magnitude from signed deltas or balances. Returns absolute numeric value for $0.001 USDC via x402 on Base. No network, no keys, no retention; first-party local JSON only. Re...
Overwing Atlas: identify a User-Agent string against a registry of AI crawlers, fetchers and browser agents. Returns the claimed agent, operator, purpose, verification method (Web Bot Auth vs spoofable) and a trust note....
Semantic search over an agent's own persistent memories (wallet-scoped). Free with a valid x-api-key.
Full knowledge unit content (query param: id). Digital content, delivered in full on payment: it cannot be withdrawn once delivered unless it differs from its listing (WITAN terms, section 4).
Exuvia: buy an already-solved answer instead of re-deriving it. Find answer ids for free at GET /search?q=<question>. Payment goes directly to the seller.
Search the text files this box's owner published. Pay $0.002 per result returned, at most $0.02 per call. Devnet test money.
Return the latest or a subject-selected recipe-bound, source-hashed proposal lifecycle fact.
Debug an x402 payment integration: target challenge + optional payment header structure, exact fixes. Unpaid HTTPS GET only; never replay, verify or settle the supplied header.
Before hiring or paying another agent: its ERC-8004 identity on Base (owner, registration file, services, how many agents the owner registered), its Virtuals ACP jobs in 30 days (requesters, repeat requesters, offerings)...
Single crypto price: send one ticker symbol (BTC, ETH, SOL) and get the current USD price from the existing market data pipeline
White-label reseller kit: terms, margin examples and x402 endpoints to resell or rebrand ScanPay APIs; pay list price and keep all markup
White-label x402 reseller kit: resell or rebrand 100 ScanPay APIs, pay list price and keep 100% margin, no contract/API key
Single-prompt LLM chat: send one prompt string and get one assistant reply (OpenAI-compatible backend), simple JSON in/out
Searches the x402 services indexed by AgentsMap by keyword and returns operators, endpoints and recent paid activity.
Crypto news summary: latest headlines from Cointelegraph and Decrypt with links and summaries, filterable by keyword
Base block explorer search: look up a Base block by number or hash and get timestamp, tx count, gas used/limit, base fee and explorer link; no input gets the latest block
Stablecoin peg monitor: live USDC/USDT/DAI USD prices, deviation from $1 in basis points and depeg flags
SEC filings search: full-text search of EDGAR filings by keyword/company, with form type, filing date, accession number and filing URL
Base gas price history: base fee, gas used/limit, utilization and transaction counts for the last N Base blocks, plus average/min/max, trend and suggested max fee