{"uid":"cap_HQYviU3gM0Q6GzMi5E7VA","slug":"synapse-api-mantle-rpc-endpoint-3f3a5de2","name":"Synapse API — Mantle RPC Endpoint","description":"High-speed API suite for AI processing, web scraping, and smart data utilities across 57+ blockchain networks. Pay-per-call via x402.","url":"https://synapse-api-brown.vercel.app/api/mantle/rpc","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"method":{"type":"string"},"params":{"type":"array","items":{}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_5jVx178ifdfrLhEQTBHYV","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Proxies JSON-RPC calls to the Mantle blockchain network, enabling agents to query chain state, submit transactions, and interact with Mantle smart contracts.","exampleAgentPrompt":"What's the current ETH balance of wallet 0xAbC...123 on the Mantle network? Use eth_getBalance with block tag 'latest'.","exampleUseCases":[{"title":"Check wallet balance on Mantle","prompt":"Look up the current balance of the wallet address 0x1234abcd... on the Mantle network and tell me how much MNT it holds."},{"title":"Fetch latest Mantle block info","prompt":"Get me the latest block number and its timestamp from the Mantle blockchain right now."},{"title":"Call Mantle smart contract","prompt":"Call the balanceOf function on the ERC-20 contract at 0xDEAD... on Mantle for address 0xBEEF... and return the token balance."}],"resultDescription":"Returns a standard JSON-RPC response object with 'id', 'jsonrpc', and 'result' fields. The result content depends on the method called — e.g. a hex balance string for eth_getBalance, a block object for eth_getBlockByNumber, or a transaction receipt for eth_getTransactionReceipt.","failureModes":["Invalid RPC method name returns error code -32601 (method not found)","Malformed params array returns -32602 (invalid params)","Network congestion or Mantle node downtime may cause timeouts","Payment failure (402) if USDC balance is insufficient","Submitting transactions to wrong chain ID may result in rejected transactions"],"whenToPreferThis":"Use this endpoint when you specifically need to interact with the Mantle L2 blockchain via standard Ethereum JSON-RPC calls. Prefer this over generic Web3 providers when you need pay-per-call pricing with no subscription commitment, or when operating across multiple chains via the same Synapse API surface.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T07:03:54.121Z","isFirstParty":false}