Crypto market tools for agents. Free prices and Fear & Greed; paid tools in USDC on Base via x402.
Scored across 6 tools
Each tool targets a distinct data product (sentiment index, funding rates, spot prices, narrative brief, rug score, movers), so misselection is unlikely. The only soft overlap is market_brief, which repackages data also available via get_price, top_movers, funding_rates, and fear_greed, so an agent must decide between raw data and a written summary.
All names are snake_case and readable, but the convention is mixed: five are bare noun phrases (fear_greed, funding_rates, market_brief, rug_risk, top_movers) while only get_price uses a verb_noun form. Predictable enough to use, but not a single consistent pattern.
Six tools is well within the ideal 3-15 range and each covers a genuinely different facet of crypto market data. Nothing looks redundant or padded; every tool earns its place.
The surface covers sentiment, funding, spot prices, movers, token safety, and a synthesized brief, which handles most agent workflows without dead ends. Gaps remain for historical/OHLC data, token-level detail (liquidity, market cap lookup by name), and exchange-level metrics, but these are workable omissions.
Current Crypto Fear & Greed Index (0-100) from alternative.me. Free, no payment.
Inputs: no named parameters.
Perpetual futures funding rates. Pass tickers such as BTC,ETH,SOL. Tries Binance, then Bybit, then OKX, and reports which source answered. Paid tool: $0.005 USDC per call via x402 on eip155:8453. The first few calls each UTC day are free; after that an unpaid call returns PaymentRequired and does not charge.
Inputs: symbols.
Live USD prices and 24-hour changes from CoinGecko. Pass tickers as a comma-separated string, for example BTC,ETH,SOL. CoinGecko ids such as bitcoin also work. Free, no payment.
Inputs: symbols.
Short plain-English brief from live prices, filtered movers, funding, and Fear & Greed. InferHub writes 5-8 sentences (max_tokens 800). Needs INFERHUB_API_KEY. Returns the brief and the raw data. Paid tool: $0.03 USDC per call via x402 on eip155:8453. The first few calls each UTC day are free; after that an unpaid call returns PaymentRequired and does not charge.
Inputs: symbols.
Rug-pull / honeypot score from 0 to 100 using GoPlus, DexScreener, and RugCheck on Solana. chain is ethereum, bsc, base, or solana (eth, bnb, and sol also work). Trusted tokens still list issuer-style flags but those flags do not add points. include_summary adds an InferHub paragraph. Paid tool: $0.02 USDC per call via x402 on eip155:8453. The first few calls each UTC day are free; after that an unpaid call returns PaymentRequired and does not charge.
Inputs: chain (required), token_address (required), include_summary.
Biggest 24-hour gainers and losers from CoinGecko's top 250 by market cap. Coins under min_volume_usd, with a tiny volume-to-market-cap ratio, or with an extreme move on low liquidity are marked suspicious and, by default, listed in filtered_out instead of the headline lists. Duplicate listings of the same symbol at nearly the same price are merged. Set include_suspicious to keep them in. Paid tool: $0.005 USDC per call via x402 on eip155:8453. The first few calls each UTC day are free; after that an unpaid call returns PaymentRequired and does not charge.
Inputs: limit, min_volume_usd, include_suspicious.
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Pay-per-call web, Base onchain and crypto-alert tools for agents. USDC on Base via x402, no API key.
Pay-per-call crypto market intelligence for AI agents. USDC on Base via x402.
Market data and web intelligence for AI agents, paid per call in USDC on Base via x402.
Crypto market context, BSC alerts & token verdicts for agents. x402 on Base.
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