"Optimism" matching MCP tools:

• product_apiA

  1inch MCPA

  [Requires authentication] Call the authenticate tool first to start or confirm 1inch Business login (initialize 200 is still anonymous). If authenticate or this tool returns HTTP 401, complete OAuth, then retry. Call any 1inch product API endpoint using the authenticated user's credentials (base URL is the unified gateway, e.g. https://api.1inch.com). Call authenticate first. Anonymous sessions get HTTP 401 (OAuth), not x402. After a real org login, quota-exhausted routes may return a PaymentRequired tool result; retry with a signed payment in _meta["x402/payment"] (batch-settlement scheme only — see file://1inch-mcp/guides/x402-payments). Do not treat PaymentRequired as login. Optional: if your client can read MCP resources, file://1inch-mcp/guides/api-index has live Swagger links and extra gateway notes (mirrors business.1inch.com/portal/llms.txt). Common chain IDs: Ethereum=1, BNB=56, Polygon=137, Arbitrum=42161, Optimism=10, Base=8453, Avalanche=43114, Gnosis=100, zkSync=324, Linea=59144, Sonic=146, Unichain=130, Cronos=25, Monad=10143, Solana=501 (where applicable). Gateway products (use these path prefixes with this tool): - Portfolio: /portfolio/portfolio/v5.0/... — example path="/portfolio/portfolio/v5.0/general/current_value", query={"addresses":"0x..."}; token metrics path="/portfolio/portfolio/v5.0/tokens/metrics", query={"addresses":"0x...","timerange":"1year"} - Balance: /balance/v1.2/{chainId}/... — example path="/balance/v1.2/1/balances/0x..." - Spot Price: /price/v1.1/{chainId} — example path="/price/v1.1/1", method="POST", body={"tokens":["0x..."],"currency":"USD"} - Token: /token/v1.4/{chainId}/... — example path="/token/v1.4/1/search", query={"query":"USDC"} (prefer v1.4; older v1.2 chain search is deprecated in OpenAPI) - Token Details: /token-details/v1.0/details/{chain}/{tokenAddress} — example path="/token-details/v1.0/details/1/0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48" - Gas Price: /gas-price/v1.6/{chainId} — example path="/gas-price/v1.6/1" - Swap (Classic): /swap/v6.1/{chainId}/... — example path="/swap/v6.1/1/quote", query={"src":"0x...","dst":"0x...","amount":"..."} (exact query names per OpenAPI) - Orderbook: /orderbook/v4.1/{chainId}/... — example path="/orderbook/v4.1/1/all", query={"page":"1","limit":"10"} - Fusion (Intent): /fusion/orders/v2.0/..., /fusion/quoter/v2.0/..., /fusion/relayer/v2.0/... — example path="/fusion/quoter/v2.0/1/quote/receive" with required query params from spec - Fusion+ (Cross-chain): /fusion-plus/orders/..., /fusion-plus/quoter/..., /fusion-plus/relayer/... — example path="/fusion-plus/quoter/v1.2/quote/receive" with required params; equivalent routes also exist under /cross-chain/orders|quoter|relayer - History: /history/v2.0/history/{address}/events — example path="/history/v2.0/history/0x.../events", query={"chainId":"1","limit":"50","tokenAddress":"0x..."} (optional tokenAddress filters by contract; response shape uses items[].details.txHash — not raw event logs) - Traces: /traces/v1.0/chain/{chainId}/block-trace/{blockNumber}/tx-hash/{txHash} — example path="/traces/v1.0/chain/1/block-trace/18000000/tx-hash/0x..." (not /transaction/{hash}) - NFT: /nft/v2/... — example path="/nft/v2/byaddress", query={"chainIds":"1","address":"0x..."} - Charts: /charts/v1.0/chart/line/{token0}/{token1}/{period}/{chainId} — example path="/charts/v1.0/chart/line/0x.../0x.../24H/1" (period: 24H, 1W, 1M, 1Y, AllTime; not a separate timerange query) - Domains: /domains/... — example path="/domains/v2.0/lookup", query={"name":"vitalik.eth"} - Aqua (strategy analytics): /aqua/v1.0/strategies/... — example path="/aqua/v1.0/strategies/opened", query={"limit":"100"}; maker stats path="/aqua/v1.0/strategies/makers/0x.../stats". Prefer the dedicated "aqua" tool when Unleash flag mcp-service.tool.aqua is enabled; otherwise use product_api for raw HTTP. - Tx Gateway: /tx-gateway/... — example path="/tx-gateway/v1.1/1/broadcast", method="POST", body={...} - Web3 RPC: /web3/{chainId}/... — JSON-RPC over HTTP POST to an EVM (or Solana 501) node; Gateway exposes e.g. 1,10,25,56,100,130,137,143,146,324,501,8453,42161,43114,59144 — confirm availability for your org/plan. Example path="/web3/1", method="POST", body={"jsonrpc":"2.0","id":1,"method":"eth_blockNumber","params":[]} Gotchas: Portfolio gateway path repeats "portfolio" (/portfolio/portfolio/v5.0/...) because the gateway strips the first segment. Spot Price returns WEI in native currency unless you set currency. Token list responses are large; prefer search. Token Details does not support native ETH pseudo-address 0xeeee...eeee; use WETH. Balance responses may include zero balances—filter client-side. For limit order flows (build, sign, create, cancel), prefer the "orderbook" tool. For swap execution, prefer the "swap" tool. Use product_api for direct REST access to any endpoint.

  Connector

  Destructive

  No auth

• dex_tokenA

  fingersA

  LIVE price, 24h change, volume and liquidity for ANY token trading on a DEX, across ~all chains INCLUDING SOLANA and ROBINHOOD CHAIN (ethereum, base, arbitrum, optimism, polygon, bsc, solana, robinhood), by contract address or by name/ticker. This is the tool for tokens CoinGecko does NOT list, the DEX microcaps and memecoins (token_price only covers CoinGecko-listed coins, and does not cover Solana or Robinhood Chain). Give a contract address WITH its chain for an exact match, or a name to search every chain at once. If the result is marked ambiguous (the same name on several chains), do NOT pick one, tell the asker which chains it exists on and ask for the chain or contract. Use for 'price / is this real / how much liquidity / how's it moving' on any small, new, or non-Ethereum token.

  ConnectorNo auth

• gas_nowA

  MCPFax On-Chain ToolkitA

  Live gas price on Ethereum, Base, Arbitrum, Optimism or Polygon — in wei and gwei, plus what a plain 21,000-gas transfer would cost in the native token, which is the number you actually budget with. Pass several chains comma-separated to compare where to execute. Call this immediately before sending a transaction: gas moves every block, so the answer is good for seconds, not minutes. Costs $0.005 USDC per call via x402 on Base.

  ConnectorNo auth

• prepare_withdrawalA

  MetaLendA

  Build the EIP-712 typed-data payload to sign for withdrawing from a specific pool, without signing anything. Looks up the exact withdrawRequest domain/types/value MetaLend expects from your current balances, fills in amount and a short-lived deadline, and returns it ready to sign with your own wallet. Pass the resulting signature to submit_withdrawal. Omit `amount` (or pass "MAX") to withdraw the pool's entire balance — this uses the maxUint256 convention rather than the exact current balance, which avoids stale-balance/rounding failures. `chain` is required: the same pool contract address can exist on multiple chains (e.g. Aave reuses one address across Polygon/Arbitrum/Avalanche/Optimism), so poolContract alone cannot disambiguate a wallet holding balance in that pool on more than one of those chains. Also refuses to build typedData when the pool's live liquidity (see list_pools' poolLiquidity) does not exceed the amount being withdrawn (this also applies to MAX, using the pool's own balance) — the backend would reject the signed request either way, so this catches it before a wallet signs. A fixed on-behalf gas fee (see `fee` in the response, also available standalone via get_transaction_costs) is deducted from the withdrawn amount before it reaches your wallet — the response's `expectedReceivedAmountRaw` is what will actually arrive, not the full `amount` being withdrawn from the pool. Rate limited to 5 calls/minute per caller, no more than one call every 12s.

  ConnectorNo auth

• get_freeze_eventsA

  BlockchainAnalysisA

  Query the canonical stablecoin freeze ledger — the HISTORY of freeze / unfreeze / destroy events by Tether (USDT), Circle (USDC/EURC), Paxos (USDP) and First Digital (FDUSD), sourced from the issuers' own on-chain blacklist events across Ethereum, Polygon, Optimism, TRON and more. Filter by frozen address, chain, kind, or time; omit all filters for the most recent events. This is the EVENT HISTORY — to check whether an address is frozen right now, use check_stablecoin_freeze instead. Each row is a verifiable on-chain fact (issuer acted on address at block/time); it never states the cause. Free.

  ConnectorNo auth

• onchain_token_balancesA

  US Economic, SEC EDGAR & On-Chain Data (x402)A

  Read an ERC-20 token balance for up to 500 wallet addresses in a SINGLE call. Doing this yourself means issuing hundreds of eth_call requests, batching them, handling per-provider rate limits and partial failures, then scaling raw integers by token decimals. This does all of that and returns clean, ready-to-use numbers plus the block height the snapshot was taken at. Supported chains: base (default), ethereum, optimism, arbitrum, polygon. Defaults to canonical USDC on the selected chain when no token is given. When to use: portfolio or treasury roll-ups, airdrop and eligibility checks, holder analysis, reconciling a list of wallets. When NOT to use: you need native ETH balances (this reads ERC-20 contracts) or balances at a historical block. Args: - addresses (string[], required): 1-500 EVM addresses. Duplicates removed, order preserved. - chain (string, optional, default "base"): base | ethereum | optimism | arbitrum | polygon. - token (string, optional): ERC-20 contract address. Defaults to USDC on the chosen chain. Returns structuredContent: { "chain": "base", "chainId": 8453, "blockNumber": 34567890, "token": { "address": "0x8335...", "symbol": "USDC", "decimals": 6 }, "requested": 3, "queried": 3, "failed": 0, "totalBalance": "1234.56", "holders": [ { "address": "0x...", "raw": "1234560000", "balance": "1234.56" } ] } A read that fails at the provider returns null for that address rather than a misleading 0, and "failed" counts them. If every read fails the call errors and is not billed.

  ConnectorNo auth

• onchain_cross_chain_balancesA

  US Economic, SEC EDGAR & On-Chain Data (x402)A

  The same token's balance for one address across multiple EVM chains, in a single call. USDC (and similar assets) has a DIFFERENT contract address on every chain; checking a wallet's total position means resolving each chain's canonical address and querying it separately. This does that and sums the total, so a multi-chain treasury view does not require N separate calls. Supported chains: base, ethereum, optimism, arbitrum, polygon. Supported tokens: USDC (more may be added over time). When to use: totaling a stablecoin position spread across chains, treasury reporting for a multi-chain operation, checking where a wallet's funds actually sit. When NOT to use: you only care about one chain (use onchain_token_balances, which is cheaper), or a token not in the supported set. Args: - address (string, required): the wallet address to check. - token (string, optional, default "USDC"): which token to check across chains. - chains (string[], optional): which chains to include. Defaults to all five supported chains. Returns structuredContent: { "address": "0x...", "token": { "symbol": "USDC", "decimals": 6 }, "totalBalance": "1234.56", "chains": [ { "chain": "base", "chainId": 8453, "raw": "1000000000", "balance": "1000", "failed": false }, { "chain": "ethereum", "chainId": 1, "raw": "234560000", "balance": "234.56", "failed": false } ] } A chain that could not be read reports failed: true with null balances rather than a misleading 0; if every chain fails the call errors and is not billed.

  ConnectorNo auth

• onchain_gasA

  US Economic, SEC EDGAR & On-Chain Data (x402)A

  Current gas price across multiple EVM chains in a single call. Reads eth_gasPrice on every requested chain in parallel and returns gwei, so you do not have to query each chain's RPC separately and convert units yourself. Supported chains: base, ethereum, optimism, arbitrum, polygon. When to use: choosing the cheapest chain to transact on right now, cost estimation before submitting a transaction, monitoring for a low-gas window. When NOT to use: you need an EIP-1559 fee breakdown (base fee vs priority fee) rather than a single legacy gas price, or historical gas data. Args: - chains (string[], optional): which chains to check. Defaults to all five supported chains. Returns structuredContent: { "chains": [ { "chain": "base", "chainId": 8453, "gasPriceGwei": 0.006 }, { "chain": "ethereum", "chainId": 1, "gasPriceGwei": 0.0986 }, { "chain": "polygon", "chainId": 137, "gasPriceGwei": 278.97 } ], "source": "Live RPC eth_gasPrice, each chain's public network" } A chain whose RPC could not be reached returns gasPriceGwei null rather than a stale or fabricated value; if every requested chain fails the call errors and is not billed.

  ConnectorNo auth

• get_gas_pricesA

  Vibe SpringsA

  Real-time gas price oracle for Base, Ethereum, Arbitrum, and Optimism. Returns slow/standard/fast fee tiers, estimated costs for common operations, and network congestion status. [PAID: $0.001 USDC per call via x402 on Base. First call without payment_signature returns the payment requirements.]

  ConnectorNo auth

• bridge_quoteA

  aeX402 — Cross-Chain DeFi MCP: LINQ, AMM, Bridge, AIB

  Bridge/swap ANY asset across ANY chain via LI.FI (the engine behind Jumper) — e.g. Arbitrum USDC → Robinhood Chain (4663) USDG, or bridge into ETH for gas. Returns the best route (estimated output, fees, bridge used, duration) PLUS an unsigned transactionRequest (to/data/value/gasLimit) that the CALLER signs and submits on the fromChain — no keys are held here. Chains by id or key (1 Ethereum, 42161 Arbitrum, 8453 Base, 10 Optimism, 137 Polygon, 999 HyperEVM, 4663 Robinhood Chain). Tokens by symbol or 0x address.

  ConnectorNo auth

• ava_lend_executeA

  avaA

  Execute a REAL lend against one of your mandates. Routes Ava has already settled a mainnet transaction on: Morpho Blue on Base, and Aave v3 on Monad, BNB Chain and Avalanche. Aave v3 on Arbitrum One is wired through the identical pipeline and address-verified, but nothing has ever settled there, so do not describe it as proven. Aave v3 on Optimism and Base, and Compound v3 on Base and Arbitrum, are wired and address-verified but operator-disabled until each settles a real transaction, so calls on those routes refuse at the capability gate. This is the only MCP tool that moves live capital. Two-phase by design: call it once WITHOUT previewHash to receive the exact artifact a human must approve plus its hash, show that to the human, then call again WITH that previewHash. Your call is never treated as the human's confirmation, because you are not the person whose money moves. Only a settlement verified against the venue's own on-chain event returns a txHash; anything else has no txHash field at all, so a draft can never be narrated as a fill.

  ConnectorNo auth

• get_bridge_quoteA

  Crank ProtocolB

  Cross-chain bridge quote via deBridge DLN (FREE read, no execution). Quote moving ``amount`` (source-token base units) of ``src_token`` on ``src_chain`` into ``dst_token`` on ``dst_chain``. Supported chains: ethereum, arbitrum, base, optimism, polygon, bnb, avalanche, linea, solana (one side must be solana). Returns estimated destination amount, per-leg USD values, and DLN protocol costs. Use before bridge_in / bridge_out. Nothing is charged and no order is created.

  ConnectorNo auth

• x711_tx_simulateA

  x711 — Universal Agent Gas StationB

  Simulate an on-chain transaction on Base, Ethereum, Arbitrum, Optimism, Polygon, BNB Smart Chain (bnb/bsc), or opBNB L2 BEFORE broadcasting. Uses public RPC eth_call + eth_estimateGas — no wallet or API key needed. Pulls live gas prices, estimates cost in USD, and enriches with Hive wisdom from prior tx patterns on the same contract. Always simulate before calling x711_tx_broadcast. Returns: { success: bool, simulation.result, gas.estimate, gas.cost_usd, hive_wisdom, next_step }. Free tier: 3 sims/day (no API key needed).

  ConnectorNo auth

• list_chainsA

  BlockscoutB

  List all EVM chain slugs and Blockscout host URLs supported by this pack (20+ chains: eth, polygon, arbitrum, base, optimism, bnb, gnosis, zksync-era, etc.). Use to discover valid chain values for other tools.

  ConnectorNo auth

• build_orderA

  Ophis MCPA

  Build a bounded, ready-to-sign CoW order on Ophis. Returns { order, signing:{domain,types,primaryType}, fullAppData, appDataHash, partnerFee, next }. The receiver is ALWAYS PINNED to the owner (proceeds cannot leave the account); this public endpoint exposes no custom-receiver option. Uses the correct per-chain settlement contract (Optimism, Unichain, and Robinhood Chain are non-canonical) and applies the canonical Ophis fee policy. Apply slippage to the LIMIT side by kind: for kind 'sell' lower buyAmount (your minimum out); for kind 'buy' raise sellAmount (your maximum in). slippageBips is capped at 5000 (50%); when omitted, the enforced backstop defaults to 100 bps (1%). ENFORCED: build_order fetches a live quote and REJECTS the call if the limit is worse than slippageBips vs that quote (or if a quote cannot be fetched; retry). Sign `order` as EIP-712 with `signing`, then call submit_order.

  ConnectorNo auth

• list_chainsA

  Ophis MCPA

  List Ophis chains, split into `tradeable` (orderbook host is live, only route get_quote/build_order to these) and `paused` (settlement deployed but no live orderbook yet, so these throw). Each tradeable chain includes its orderbook host, GPv2Settlement contract (Optimism, Unichain, and Robinhood Chain are non-canonical), and canonical Ophis fee config. No input.

  ConnectorNo auth

• evm_swapA

  swaptitanA

  Build a NON-CUSTODIAL EVM DEX swap via KyberSwap aggregator on eth/base/bsc/arbitrum/polygon/optimism/avax: returns UNSIGNED calldata {to,data,value} — sign with YOUR OWN wallet. Server never touches funds. 0.3% routing fee. ERC20 input needs prior approval.

  ConnectorNo auth

• wallet_report_previewA

  crypto-mcpA

  Free PREVIEW of a wallet portfolio snapshot for any public address. Returns total USD value, number of holdings, and the single largest holding. The FULL itemized holdings breakdown is available from the paid HTTP endpoint in `full_report`. chain: e.g. 'base', 'ethereum', 'optimism', 'polygon', 'solana'. address: a public wallet address (read-only; no keys needed).

  ConnectorNo auth

• payment.infoA

  Agent402.Tools: pay-per-call web toolsA

  How paying for Agent402 tools works and how to manage a wallet. This hosted connector holds NO wallet: 165 pure-CPU tools run free here (or solve a proof-of-work puzzle), the rest - including search/answer and the /v1 OpenAI-compatible LLM gateway - settle in USDC via x402. Covers: the free vs paid split, how to configure a funded wallet + per-call and budget spend caps, the rails (USDC on Base, Solana, Polygon, Arbitrum, Monad, Celo, Avalanche, Sei, Optimism, Stellar, or Algorand - or USDG on Robinhood Chain), and checking a wallet's balance/transaction history via catalog.call on wallet-balances / wallet-transactions. Returns { connector, freeTier, pay, spendControls, balanceAndHistory }.

  ConnectorNo auth

• onchain_oracle_priceA

  US Economic, SEC EDGAR & On-Chain Data (x402)A

  Read any Chainlink price feed directly on-chain — a named pair or a raw feed address. Calls latestRoundData on the feed contract itself, so there is no price-API vendor, no rate limit, and no key. Includes the feed's last-updated timestamp and its age in seconds, so you can judge staleness yourself rather than trusting an unlabeled number. Known named pairs on Base: ETH/USD, BTC/USD, USDC/USD. Any other feed address on any supported chain also works. When to use: getting a specific asset's price without depending on a centralized price API, verifying a feed is fresh before using it, cross-checking a price from another source. When NOT to use: you need a token that has no Chainlink feed (use onchain_portfolio's covered set, or a DEX quote instead), or historical/point-in-time prices. Args: - pair (string, required): a named pair (e.g. "ETH/USD") or a raw feed contract address (0x...). - chain (string, optional, default "base"): base | ethereum | optimism | arbitrum | polygon. Returns structuredContent: { "chain": "base", "feed": "0x71041dddad3595F9CEd3DcCFBe3D1F4b0a16Bb70", "pair": "ETH/USD", "price": 1877.86, "decimals": 8, "updatedAt": "2026-08-14T12:00:00.000Z", "ageSeconds": 120, "source": "Chainlink on-chain price feed" }

  ConnectorNo auth

• prepare_withdrawalA

  metalendA

  Build the EIP-712 typed-data payload to sign for withdrawing from a specific pool, without signing anything. Looks up the exact withdrawRequest domain/types/value MetaLend expects from your current balances, fills in amount and a short-lived deadline, and returns it ready to sign with your own wallet. Pass the resulting signature to submit_withdrawal. Omit `amount` (or pass "MAX") to withdraw the pool's entire balance — this uses the maxUint256 convention rather than the exact current balance, which avoids stale-balance/rounding failures. `chain` is required: the same pool contract address can exist on multiple chains (e.g. Aave reuses one address across Polygon/Arbitrum/Avalanche/Optimism), so poolContract alone cannot disambiguate a wallet holding balance in that pool on more than one of those chains. Also refuses to build typedData when the pool's live liquidity (see list_pools' poolLiquidity) does not exceed the amount being withdrawn (this also applies to MAX, using the pool's own balance) — the backend would reject the signed request either way, so this catches it before a wallet signs. A fixed on-behalf gas fee (see `fee` in the response, also available standalone via get_transaction_costs) is deducted from the withdrawn amount before it reaches your wallet — the response's `expectedReceivedAmountRaw` is what will actually arrive, not the full `amount` being withdrawn from the pool. Rate limited to 5 calls/minute per caller, no more than one call every 12s.

  ConnectorNo auth