{"license":"CC-BY-4.0","licenseUrl":"https://creativecommons.org/licenses/by/4.0/","attribution":"ChainChoice (https://chainchoice.io)","category":"block_explorers","evidenceReadAt":"2026-11-03","generatedAt":"2026-11-12","criteria":[{"id":"freeUsability","label":"What works without paying","weight":30},{"id":"dataQuality","label":"Data completeness & indexing lag","weight":26},{"id":"verification","label":"Contract verification support","weight":24},{"id":"independence","label":"Independence from the chain","weight":20}],"providers":{"etherscan":{"freeUsability":{"s":4,"q":"Free tier usage is capped at the daily limit, with no overage. Once you reach it, requests are blocked until the limit resets.","u":"https://docs.etherscan.io/rate-limits.md","d":"2026-11-03"},"dataQuality":{"s":4,"q":"Token transfers on BscScan are currently indexing behind. Some transfers may appear missing or outdated on the website and API. Other data is unaffected.","u":"https://status.etherscan.io/api/v2/incidents.json","d":"2026-11-03"},"verification":{"s":8,"q":"Verify by calling the API directly, or with the verify support built into Hardhat, Foundry, and Remix.","u":"https://docs.etherscan.io/contract-verification.md","d":"2026-11-03"},"independence":{"s":8,"q":"Built and launched in 2015 by Matthew Tan (CEO & Founder), Etherscan is one of the earliest and longest-running independent projects built around Ethereum and its community","u":"https://etherscan.io/aboutus","d":"2026-11-03"}},"blockscout":{"freeUsability":{"s":6,"q":"At the default 20-credit cost per call, the free tier’s 100K daily credits is roughly 5,000 standard requests a day before the counter resets at midnight UTC.","u":"https://docs.blockscout.com/rate-limits","d":"2026-11-03"},"dataQuality":{"s":5,"q":"\"name\":\"BlockScout ETH Indexer Health\" | \"90dRatio\":{\"ratio\":\"99.960\",\"label\":\"excellent\",\"color\":\"green\"}","u":"https://status.blockscout.com/api/getMonitorList/6Y03kfonO7?page=1","d":"2026-11-03"},"verification":{"s":8,"q":"Verify deployed smart contracts on Blockscout using source code, standard JSON input, Sourcify, Hardhat, Foundry, Remix, and other methods.","u":"https://docs.blockscout.com/devs/verification.md","d":"2026-11-03"},"independence":{"s":7,"q":"Blockscout powers explorers for 100+ L2s and scaling projects.","u":"https://docs.blockscout.com/devs/blockscout-api","d":"2026-11-03"}},"routescan":{"dataQuality":{"s":5,"q":"Current status by service Operational Explorer as a Service 100% uptime Maintenance Report 2/2026 Under maintenance for 2 hours and 30 minutes Aug 19, 2026","u":"https://status.routescan.io/","d":"2026-11-03"},"freeUsability":{"s":8,"q":"Developers start self-serve: the APIs have a free tier that needs no account, and the MCP server connects AI agents.","u":"https://routescan.io/llms.txt","d":"2026-11-03"},"verification":{"s":7,"q":"**How do I verify a smart contract?** At https://routescan.io/verifycontract — supports Solidity and Vyper, including Hardhat/Foundry standard-JSON uploads.","u":"https://routescan.io/llms-full.txt","d":"2026-11-03"},"independence":{"s":3,"q":"**Which explorers does Routescan run?** Among others, Snowtrace (snowtrace.io) for Avalanche C-Chain | Routescan also runs Managed Block Explorers (white-label, run as a service) for chain teams on their own domains","u":"https://routescan.io/llms-full.txt","d":"2026-11-03"}},"solscan":{"freeUsability":{"s":3,"q":"The Free and Lite Plans are licensed for Personal and Research Use only.","u":"https://docs.solscan.io/solscan-api/solscan-api-terms-and-services.md","d":"2026-11-03"},"dataQuality":{"s":3,"q":"The Solscan Pro API delivers token price and Market Cap data with a 3-minute delay.","u":"https://docs.solscan.io/solscan-api/solscan-pro-api-faq.md","d":"2026-11-03"},"verification":{"s":2,"q":"Solscan Support Verifed \"Anchor\" Status. Clicking on the badge will allow you to redirect to the program code page on Anchor site.","u":"https://docs.solscan.io/transaction-details/anchor-verified-programs.md","d":"2026-11-03"},"independence":{"s":7,"q":"2024 January Acquired Solscan, a block explorer for Solana | Etherscan is one of the earliest and longest-running independent projects built around Ethereum and its community","u":"https://etherscan.io/aboutus","d":"2026-11-03"}},"subscan":{"freeUsability":{"s":2,"q":"Only new free-key creation has been discontinued on the direct platform; new free integrations should use a PubFi API key and the PubFi Gateway instead.","u":"https://support.subscan.io/doc-735188","d":"2026-11-03"},"dataQuality":{"s":3,"q":"Subscan Autonomys Network Outdated","u":"https://subscan.statuspage.io/api/v2/incidents.json","d":"2026-11-03"},"verification":{"s":3,"q":"Subscan's \"Standard JSON\" verification method requires the full source code within the JSON file. However, the default metadata.json generated by Remix often contains URLs (IPFS/Swarm) instead of the actual source code content . You must manually edit this JSON file to inject the source code.","u":"https://support.subscan.io/doc-2182693","d":"2026-11-03"},"independence":{"s":2,"q":"Subscan Enterprise Explorer License - Polkadot 2026 Milestone-Based Service","u":"https://polkadot-api.subsquare.io/gov2/referendums/1906","d":"2026-11-03"}},"mempool_space":{"freeUsability":{"s":9,"q":"Note that we enforce rate limits. If you exceed these limits, you will get an HTTP 429 error. If you repeatedly exceed the limits, you may be banned from accessing the service altogether. Consider an enterprise sponsorship if you need higher API limits.","u":"https://mempool.space/docs/api/rest","d":"2026-11-03"},"verification":{"s":1,"q":"We have extended industry standard REST endpoints to provide comprehensive access to bitcoin data.","u":"https://mempool.space/enterprise","d":"2026-11-03"},"independence":{"s":8,"q":"are operated by Mempool Holdings S.A. de C.V. in El Salvador (\"Mempool\", \"We\", or \"Us\") and self-hosted from AS142052","u":"https://mempool.space/terms-of-service","d":"2026-11-03"},"dataQuality":{"s":4,"q":"99.9% uptime guarantee across 6 globally distributed data centers ensure your application runs smoothly. | \"99.99% SLA\"","u":"https://mempool.space/main.1abc68321ff065da.js","d":"2026-11-03"}},"arkham":{"freeUsability":{"s":3,"q":"When a free trial reaches its cap, API access is paused until you upgrade.","u":"https://arkm.com/llms/guides/credit-pricing.md","d":"2026-11-03"},"verification":{"s":1,"q":"Returns contract metadata for the specified chain and address, including deployer information, proxy status, block timestamp, creation bytecode, and function selectors.","u":"https://arkm.com/llms/get-intelligence-contract-chain-address.md","d":"2026-11-03"},"dataQuality":{"s":2,"q":"Retrieves the current status for all supported blockchain networks, including price, 24h price change, volume, market cap, latest block (tip), total transfers, and gas/fee information. | Each network includes an \"asOf\"","u":"https://arkm.com/llms/get-networks-status.md","d":"2026-11-03"},"independence":{"s":5,"q":"ARKHAM INTELLIGENCE, INC. TERMS OF SERVICE Date of Last Revision: July 15, 2025 | Arkham Intelligence, Inc. (“Arkham,” “Company,” “we,” “us,” or “our”) | Exchange Terms of Services","u":"https://info.arkm.com/terms-of-service","d":"2026-11-03"}}}}