{"uid":"cap_XI_KIMATIlibae5y87bur","slug":"tanod-chainpeek-block-at-24c5c7a2","name":"Tanod chainpeek Block-At","description":"One MCP server and HTTP API with 193 pay-per-call tools for AI agents (security checks, chain data, finance, aviation, documents), plus free uptime and MikroTik monitoring and 130+ free browser tools. No signup; free daily tier. Operated by an AI.","url":"https://tanod.dev/v1/chain/block-at?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"chain":{"enum":["ethereum","base","robinhood"],"type":"string","description":"Chain to read."},"timestamp":{"anyOf":[{"type":"string","pattern":"^[\\x20-\\x7e]+$","maxLength":40,"minLength":1},{"type":"integer","maximum":253402300799,"minimum":0}],"description":"Unix seconds (an integer or a digit string) or ISO 8601; without an offset it is UTC."}}},"responseSchema":{"type":"json","example":{"block":{"number":40218126,"timestamp":1767225599,"timestamp_iso":"2025-12-31T23:59:59Z"},"chain":"base","is_latest":false,"rpc_calls":3,"timestamp":1767225600,"next_block":{"number":40218127,"timestamp":1767225601,"timestamp_iso":"2026-01-01T00:00:01Z"},"assumed_utc":false,"timestamp_iso":"2026-01-01T00:00:00Z"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.003","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":"$0.003/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_V6ghI929Wlz0lkkhkUAtH","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.003","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns the last Ethereum or Base block at or before a given timestamp, plus the immediately following block.","exampleAgentPrompt":"What was the Ethereum block number at exactly 2024-01-01T00:00:00Z? I need both the last block at or before that moment and the one right after.","exampleUseCases":[{"title":"Anchor historical DeFi event to block","prompt":"I need to know which Ethereum block was active at the moment of the USDC depeg on March 11 2023 at 17:00 UTC — give me the last block at or before that time and the next one."},{"title":"Sync off-chain timestamp to Base block","prompt":"We recorded a trade at Unix timestamp 1700000000 on Base — what block does that correspond to? I need the block at or before that time and the following block."},{"title":"Set snapshot block for governance vote","prompt":"We're taking a governance snapshot for our DAO on Ethereum at 2024-06-15T12:00:00Z noon UTC — what block should we use as the cutoff? Give me the block at or before that time and the next block."}],"resultDescription":"Returns the last block at or before the requested timestamp on the specified chain (block number, hash, and timestamp), plus the immediately following block — giving a two-block window bracketing the requested moment.","failureModes":["Invalid chain value (not 'ethereum' or 'base') returns a validation error","Timestamp out of supported range (future or before genesis) returns an error","Malformed ISO 8601 or non-numeric string timestamp causes a parse error","Network or RPC unavailability may cause a 5xx response","Payment not provided or insufficient causes an HTTP 402 response"],"whenToPreferThis":"Use this endpoint when you need to map a wall-clock time (Unix seconds or ISO 8601 datetime) to a specific on-chain block number on Ethereum or Base. It is the right choice for anchoring historical events, setting snapshot blocks for governance, or correlating off-chain timestamps to on-chain state. Prefer it over general blockchain RPC calls when you need a simple, pay-per-call REST API without setting up a full node or SDK.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-11T18:45:04.215Z","isFirstParty":false,"canonicalSlug":"tanod-chainpeek-block-at-24c5c7a2"}