{"uid":"cap_3PK3qxMhdDu2fv-HqRRmL","slug":"glassnode-mempool-total-transaction-size-a8d757c3","name":"Glassnode Mempool Total Transaction Size","description":"Mempool Total Size of Transactions — The total size of all transactions waiting in the mempool, denoted in virtual bytes (vByte). Data by Glassnode.","url":"https://x402.glassnode.com/v1/metrics/mempool/txs_size_sum","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["a"],"properties":{"a":{"enum":["BTC"],"type":"string","description":"Asset symbol, e.g. BTC, ETH"},"c":{"enum":["native"],"type":"string","description":"Currency for denominated values, e.g. usd, native"},"f":{"enum":["csv","json"],"type":"string","description":"Response format: json or csv"},"i":{"enum":["24h"],"type":"string","description":"Time interval / resolution, e.g. 24h, 1w, 1month"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"array","items":{"type":"object","properties":{"t":{"type":"number"},"v":{"type":"number"}}}}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.05","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":"$0.05/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_ijXEKi1BKRCrm-BE2Bbip","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.05","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns the total size of all Bitcoin transactions currently waiting in the mempool, measured in virtual bytes (vByte), as a time series.","exampleAgentPrompt":"Pull the total mempool transaction size for Bitcoin from Glassnode — I want the 24-hour interval data in JSON so I can see how congested the mempool has been.","exampleUseCases":null,"resultDescription":"An array of time-stamped data points, each containing a Unix timestamp ('t') and the total mempool size value in virtual bytes ('v'), representing daily snapshots of all pending Bitcoin transactions in the mempool.","failureModes":["Missing required 'a' query parameter (asset) returns 400 error","Invalid asset symbol other than BTC returns validation error","Payment not included or insufficient USDC (x402 payment required) returns 402 Payment Required","Invalid interval or format enum value returns 400 error","Upstream Glassnode data unavailable returns 503 or timeout"],"whenToPreferThis":"Use this endpoint when you need historical or current Bitcoin mempool congestion data measured in virtual bytes, specifically sourced from Glassnode's on-chain analytics platform. Prefer this over generic blockchain explorers when you need structured time series data for quantitative analysis or trend monitoring of mempool load.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T01:07:11.575Z","isFirstParty":false}