{"name":"47620-multichain","title":"47620 Multichain Data","description":"Pay-per-call on-chain data for Solana, Base and Polygon from one MCP server (52 tools). Neutral tools (health, balance, tx, token, gas, trending, contract, snapshot, risk_check, token_report, trust_check) take an explicit `chain` param; should_pay covers EVM. Also live crypto market data (price, batch prices, analytics, OHLCV, RSI/EMA/SMA, funding, open interest, order book), CPU utilities (decode JWT, convert units, QR, unix timestamp, SHA-256) and live x402 ecosystem adoption stats. Legacy solana_* names still work. Settles over x402 (USDC on any of the three chains), no accounts or API keys.","version":"1.2.0","provider":{"organization":"47620","url":"https://47620.xyz"},"documentation":"https://47620.xyz/agents","transports":{"streamable-http":{"url":"https://47620.xyz/mcp/multichain"},"stdio":{"install":"npx -y 47620-solana-mcp"}},"registry":"xyz.47620/multichain","remote_config":{"mcpServers":{"47620-multichain":{"url":"https://47620.xyz/mcp"}}},"config":{"mcpServers":{"47620-multichain":{"command":"npx","args":["-y","47620-solana-mcp"],"env":{"X402_BASE_URL":"https://47620.xyz"}}}},"tools":[{"name":"gas_multichain","description":"gas price (multichain) — Gas price for a chain (base|polygon|solana): eth_gasPrice + slow/standard/fast tiers. Solana returns the per-signature base fee. From 0.002 USDC."},{"name":"tx_receipt","description":"transaction receipt (multichain) — Normalized receipt for a transaction hash on Solana, Base or Polygon: status, block/slot, from/to, gas. Auto-detects chain by hash shape. From 0.005 USDC."},{"name":"tx_history","description":"transaction history (multichain) — Recent transactions for an EVM address on Base and Polygon: hash, block, from/to, value, timestamp. Query: limit (default 25). From 0.010 USDC."},{"name":"token_risk_evm","description":"token risk score (EVM) — Static risk read for an ERC-20 on Base/Polygon: liquidity depth (DexScreener), pair count and a 0-100 risk score. From 0.010 USDC."},{"name":"dex_spread","description":"cross-DEX price spread — Cross-DEX price spread for a token: best bid/ask across all DEX pairs (DexScreener), spread %, liquidity-weighted mid and where the price is cheapest/dearest. Useful for arbitrage and fair-price checks on Base/Polygon/Solana. From 0.010 USDC."},{"name":"nft_holdings","description":"NFT holdings (multichain) — NFT holdings for a wallet on Base and Polygon via the public Reservoir/Alchemy-free route: collections owned, estimated counts and floor where available. One call across chains. From 0.010 USDC."},{"name":"portfolio_multichain","description":"multichain portfolio (USD) — Unified portfolio across Solana + Base + Polygon for one address: native balance with USD value and per-chain totals. One call instead of three chain-specific reads. From 0.010 USDC."},{"name":"wallet_balances_multichain","description":"wallet balances (multichain) — Token balances for an address in one call: native + ERC-20 (USDC/USDT/DAI) on Base and Polygon plus all Solana SPL holdings. Keyless, no API key. From 0.005 USDC."},{"name":"wallet_reliability_json","description":"wallet reliability as JSON — Agent-readable JSON reliability read for a wallet or contract before paying it: does the account exist, does it have code, transaction nonce, native balance and a 0-100 reliability score with reasons. Base, Polygon or Solana. Machine-parseable JSON, no HTML and no scraping. From 0.005 USDC."},{"name":"defi_yields","description":"DeFi lending yields — Best DeFi lending/staking yields for a token symbol (e.g. USDC, ETH, SOL) across chains: top pools by APY (total + base + reward), TVL and project. Keyless, from DefiLlama. From 0.010 USDC."},{"name":"stablecoin_peg","description":"stablecoin peg health — Peg health for a stablecoin (e.g. USDC, USDT, DAI): current USD price, peg deviation (bps), 24h/7d change, market cap and a depeg-risk band. Keyless, from DefiLlama + CoinGecko. From 0.005 USDC."},{"name":"token_research","description":"token research summary — One-call research summary for a token (EVM 0x or Solana base58): price/liquidity/volume (DexScreener), market cap/rank/supply (CoinGecko), pair count, and key risk flags. Aggregated from keyless sources. From 0.015 USDC."},{"name":"wallet_security","description":"wallet security score (EVM) — Security/risk report for an EVM address: GoPlus address security flags (sanctioned, phishing, money laundering, mixer usage, honeypot exposure) rolled into a 0-100 score and verdict. Keyless, from GoPlus. From 0.010 USDC."},{"name":"payment_evidence","description":"payment evidence (multichain) — Given a transaction hash (EVM 0x 64-hex or Solana base58 signature), returns on-chain payment evidence: status, confirmations, sender, receiver, value, fee and chain. Auto-detects chain from the hash. Keyless. From 0.010 USDC."},{"name":"defi_arbitrage","description":"cross-DEX arbitrage (multichain) — Best cross-DEX/cross-chain spread for a token symbol (e.g. ETH, SOL, USDC): cheapest buy venue vs highest sell venue with gross spread %, liquidity, volume and chains. Keyless, from DexScreener. From 0.020 USDC."},{"name":"payment_verify","description":"payment verification (multichain) — Verify an on-chain payment: confirmations, finality, sender/receiver and value, plus optional expected-match checks (query ?to=, ?minAmount=). Returns a boolean verified verdict. EVM 0x or Solana signature. From 0.010 USDC."},{"name":"opportunity_feed","description":"agent marketplace opportunity feed — Live marketplace gaps for a domain (e.g. crypto, security, agent, finance): unhealthy/underserved x402 categories with total vs healthy endpoints, provider counts and a reliability score. Keyless, from 402index. From 0.005 USDC."},{"name":"health","description":"Network health for a chosen chain. chain=solana|base|polygon resolves /x/solana/health, /x/base-fac/health, /x/polygon-fac/health. From $0.001 USDC."},{"name":"balance","description":"Native + stablecoin balances for an address on any chain. From $0.002 USDC."},{"name":"token","description":"Live price, liquidity, 24h volume + DEX pairs for a token on any chain. From $0.002 USDC."},{"name":"tx","description":"Transaction status + transfer summary on any chain (Solana signature or EVM 0x hash). From $0.003 USDC."},{"name":"gas","description":"Current gas price + estimated transfer cost (Base, Polygon). From $0.001 USDC."},{"name":"contract","description":"Is an address a contract? Bytecode size + ERC-20 metadata (Base, Polygon)."},{"name":"trending","description":"Trending DEX pairs by 24h volume on any chain. From $0.005 USDC."},{"name":"trust_check","description":"Pre-payment payee verdict safe|review|avoid from re-verifiable on-chain facts. Solana, Base, Polygon. From $0.02 USDC."},{"name":"snapshot","description":"Whole-network picture in one call on any chain. chain=solana|base|polygon resolves /x/solana/snapshot, /x/base-fac/snapshot, /x/polygon-fac/snapshot. From $0.01 USDC."},{"name":"risk_check","description":"Pre-payment address risk score (0-100) + proceed/review verdict on any chain. chain=solana|base|polygon. From $0.02 USDC."},{"name":"should_pay","description":"Pay-vs-do-not-pay decision for a payee from re-verifiable on-chain facts (Base, Polygon). From $0.02 USDC."},{"name":"token_report","description":"Full token due-diligence in one call on any chain. chain=solana|base|polygon. From $0.01 USDC."},{"name":"crypto_price","description":"Live crypto spot price in USD (btc, eth, sol, bnb, xrp, ada, doge, avax, link, matic, arb, op): price + 24h change/high/low/volume. From $0.002 USDC."},{"name":"crypto_ohlcv","description":"OHLCV candle history for a crypto coin: interval (1m,5m,15m,1h,4h,1d) + limit (<=500). From $0.005 USDC."},{"name":"crypto_indicators","description":"Technical indicators for a crypto coin: RSI(14) + signal, EMA(20/50), SMA(20/50/200). From $0.005 USDC."},{"name":"crypto_derivatives","description":"Perpetual funding rate + mark/index price + open interest for a coin. From $0.005 USDC."},{"name":"crypto_orderbook","description":"Order-book top-of-book: best bid/ask, spread (abs + bps), depth and imbalance. From $0.005 USDC."},{"name":"crypto_deep","description":"Full decision pack in one call: spot + candle + indicators + funding/OI + order book. From $0.02 USDC."},{"name":"crypto_prices","description":"Batch spot prices for many coins in one call: comma-separated list (btc,eth,sol). From $0.01 USDC."},{"name":"crypto_analytics","description":"Analytics snapshot for a coin: realized volatility, trend direction, relative volume, range position. From $0.005 USDC."},{"name":"jwt_decode","description":"Decode a JWT and extract claims (sub/iss/aud/exp, alg, kid). Decode-only. From $0.002 USDC."},{"name":"unit_convert","description":"Convert units: length, mass, area, temperature (incl. Russian verst/sazhen/pood). From $0.001 USDC."},{"name":"qr_generate","description":"Generate a QR code for any text/URL as inline SVG + base64 data URI. From $0.002 USDC."},{"name":"unix_timestamp","description":"Convert between unix epoch (s/ms) and human time in any timezone. From $0.001 USDC."},{"name":"sha256_fingerprint","description":"SHA-256 fingerprint of a string: hex, colon-hex, short id, base64. From $0.001 USDC."},{"name":"x402_ecosystem_stats","description":"LIVE sourced x402 adoption stats: indexed service count, networks, assets, categories, USD price stats. From $0.01 USDC."},{"name":"x402_ecosystem_networks","description":"Network/asset histogram of the live x402 ecosystem. From $0.005 USDC."}]}