{"uid":"cap_rpjd50MbRzOU0n8P7vAW0","slug":"nimbus-onchain-data-api-base-stablecoin-volume-908479b7","name":"Nimbus Onchain Data API – Base Stablecoin Volume","description":"x402 pay-per-call. Payments are per request in USDC and are final. No refunds on-chain. Service is provided as-is and may change or stop without notice. Informational data only, not financial, investment, legal, or tax advice. Metrics such as net transfer volume estimates and wallet clusters are algorithmic estimates from public blockchain data and may be wrong or delayed. Provided as-is with no warranty. Methodology: https://crypto-data-api-zo95.onrender.com/methodology.","url":"https://crypto-data-api-zo95.onrender.com/v1/base/stablecoin-volume?utm_source=zero.xyz","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":[],"properties":{"window":{"enum":["1h","6h","24h"],"type":"string","default":"1h","description":"Rolling window"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","properties":{"checks_run":{"type":"array"},"disclaimer":{"type":"string"},"gross_volume":{"type":"number","description":"Net token movement per transaction, counted once: net on-chain transfer volume, which includes lending, bridge and exchange flows and is not DEX trading volume."},"transfer_volume":{"type":"object","description":"Summary block (market-check, stablecoin-volume, snapshots): gross_volume, non_circular_volume_estimate, non_circular_share_estimate and USD values. net on-chain transfer volume, which includes lending, bridge and exchange flows and is not DEX trading volume."},"generated_at_utc":{"type":"string"},"volume_definition":{"type":"string","description":"Plain-text definition of the volume figures in this response."},"raw_transfer_volume":{"type":"number","description":"Diagnostic only: sum of every Transfer leg (router hops, flash loans and LP moves included). Not a volume measure."},"circular_share_estimate":{"type":"number","description":"circular_volume_estimate / gross_volume (0-1). Heuristic estimate."},"circular_volume_estimate":{"type":"number","description":"Part of gross_volume matched as circular across transactions (round-trips, high-frequency bot churn, 3-hop cycles). Heuristic estimate."},"intra_tx_round_trip_volume":{"type":"number","description":"Amount that cancels out within single transactions (pass-through hops, repaid flash loans). Excluded from gross_volume."},"liquidity_add_remove_volume":{"type":"number","description":"Transfers into/out of a pool in a tx where that pool added/removed liquidity. Excluded from gross_volume."},"non_circular_share_estimate":{"type":"number","description":"non_circular_volume_estimate / gross_volume (0-1): the non-circular share of net on-chain transfer volume."},"non_circular_volume_estimate":{"type":"number","description":"gross_volume minus circular_volume_estimate: the non-circular part of net on-chain transfer volume. This is net on-chain transfer volume, which includes lending, bridge and exchange flows and is not DEX trading volume."},"non_circular_volume_usd_estimate":{"type":"number","description":"non_circular_volume_estimate valued in USD (stablecoins at $1.00; WETH via on-chain price)."}}}}}}},"responseSchema":{"type":"json","example":{"window":"1h","per_token":{"USDC":{"transfers":210000,"gross_volume":123456789.12,"circular_share_estimate":0.109,"non_circular_volume_estimate":110000000.5}},"checks_run":[{"id":"pipeline_fresh","ran":true,"passed":true,"description":"Ingested data lag under 300s"}],"disclaimer":"Informational data only, ...","generated_at_utc":"2026-09-29T19:40:00.000Z"}},"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_qu3RAdXKsRtdNzg-lmp6S","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":"Returns rolling-window on-chain stablecoin transfer volume metrics for the Base blockchain, including gross volume, circular volume estimates, and per-token breakdowns.","exampleAgentPrompt":"What's the on-chain stablecoin transfer volume on Base right now — can you pull the last hour's gross and non-circular volume estimates broken down by token?","exampleUseCases":[{"title":"Real-time Base stablecoin activity dashboard","prompt":"Pull the last hour of stablecoin transfer volume on Base for me, including how much is circular versus genuine economic activity, so I can update our live dashboard."},{"title":"Bot churn analysis for Base stablecoins","prompt":"What share of stablecoin volume on Base over the past 6 hours looks like bot round-trips or circular flows rather than real transfers?"},{"title":"24-hour stablecoin volume trend report","prompt":"Give me the full 24-hour stablecoin transfer volume on Base, including gross volume, the non-circular estimate, and a per-token breakdown, so I can include it in today's DeFi report."}],"resultDescription":"A JSON object containing the requested time window, per-token metrics (transfer count, gross_volume, circular_share_estimate, non_circular_volume_estimate), a summary transfer_volume block, pipeline freshness checks (checks_run array), a plain-text volume_definition, a generated_at_utc timestamp, and a disclaimer. Diagnostic fields like raw_transfer_volume and intra_tx_round_trip_volume are also included.","failureModes":["Payment not submitted or rejected — endpoint returns HTTP 402 requiring USDC payment via x402 protocol","Invalid window value (not 1h, 6h, or 24h) — likely returns a 400 or validation error","Data pipeline lag exceeds 300 seconds — checks_run will show pipeline_fresh as failed","Service unavailability (hosted on Render free tier) — possible cold-start latency or 503 errors","Stale or delayed data — algorithmic estimates may not reflect real-time chain state"],"whenToPreferThis":"Choose this endpoint when you need current or recent on-chain stablecoin transfer volume specifically for the Base blockchain, with circular-flow deduplication built in. It is distinct from DEX trading volume APIs and is best suited for DeFi analysts, dashboard builders, or agents that need economic transfer activity (not swap volume) at 1h, 6h, or 24h granularity. Prefer alternatives if you need Ethereum mainnet, Solana, or other chains, or if you need historical time-series beyond the rolling window.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T18:39:48.742Z","isFirstParty":false,"canonicalSlug":"nimbus-onchain-data-api-base-stablecoin-volume-908479b7"}