{"uid":"cap_Xw6U77JmyASq32M4fKbNv","slug":"synthora-erc-20-token-holder-transfer-counters-d1248019","name":"SYNTHORA ERC-20 Token Holder & Transfer Counters","description":"Returns holder count and cumulative transfer count for any ERC-20/ERC-721 token via public Blockscout, plus circulating market cap, total supply and exchange rate on the token detail path. Feeds autonomous token-screening agents and agent-to-agent due-diligence flows that gauge holder distribution, concentration risk and token adoption before trading. First 3 calls FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream failure.","url":"https://blockscout-token-holder-counters.hergertsynthora.com/service","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"keys":{"type":"string","description":"keys"},"caller":{"type":"string","description":"caller"},"payload":{"type":"string","description":"payload"},"provides":{"type":"string","description":"provides"}}},"responseSchema":{"type":"json","example":{"ok":true,"niche":"blockscout-token-holder-counters","result":{"transfers_count":"336385388","token_holders_count":"8204366"},"provenance":{"url":"https://eth.blockscout.com/api/v2/tokens/0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48/counters","source":"ERC-20 Token Holder & Transfer Counters"}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","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":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_9MjEsHpDhh1J1v4nqxF6d","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns holder count and cumulative transfer count for any ERC-20 or ERC-721 token contract address, sourced from public Blockscout APIs.","exampleAgentPrompt":"How many holders and total transfers does USDC (contract 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48) have on Ethereum right now — I want to check its adoption and concentration risk before including it in a portfolio strategy.","exampleUseCases":[{"title":"Token concentration risk screening","prompt":"Before we add this new DeFi token at contract 0x6B175474E89094C44Da98b954EedeAC495271d0F to the portfolio, can you pull its holder count and total transfer volume so I can assess how concentrated ownership is?"},{"title":"Automated pre-trade due diligence","prompt":"Run a quick due diligence check on the token at 0x1f9840a85d5aF5bf1D1762F925BDADdC4201F984 — I need its holder count, transfer count, and circulating market cap to decide if it's liquid enough to trade."},{"title":"Token adoption growth monitoring","prompt":"I'm tracking user adoption for the token at 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48 — can you fetch the current holder count and cumulative transfers so I can compare it against last week's numbers?"}],"resultDescription":"A JSON object containing the token's total holder count (number of unique addresses holding the token) and cumulative transfer count (total number of on-chain transfer events), plus optionally circulating market cap, total supply, and exchange rate when queried via the token detail path.","failureModes":["Invalid or non-existent contract address returns an error or empty result","Token not indexed by Blockscout returns no data","Rate limiting or Blockscout API downtime causes lookup failure","Non-ERC-20/ERC-721 contract addresses may return unexpected results","Network mismatch (querying wrong chain for contract) returns null or error"],"whenToPreferThis":"Choose this endpoint when you need fast, on-chain holder and transfer count data for any ERC-20 or ERC-721 token without running your own Blockscout node. It is ideal for autonomous agent workflows performing token screening, concentration risk assessment, or adoption analysis before a trade or investment decision. Prefer it over generalized blockchain explorers when you need a structured JSON response suitable for agent-to-agent due-diligence pipelines.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T18:37:55.035Z","isFirstParty":false}