{"uid":"cap_8qgOxoBZylmaEXDe_Ku3G","slug":"verigrace-on-chain-tax-report-0448ea11","name":"VeriGrace On-Chain Tax Report","description":"On-chain realized PnL + FIFO tax cost-basis report for any Base wallet. Per-asset holdings, FIFO realized gain/loss with event-time price interpolation, taxable event ledger, mark-to-market USD. Structured JSON for accountants. Pay-per-report: 1.00 USDC on Base via x402. Source: Blockscout + CoinGecko (public data only).","url":"https://api.verigrace.com:4450/api/tax-report?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":null,"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"1","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":"$1/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"1","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"1","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_dMYwdnWFFd-SVfL29erOh","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"1","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Generates a FIFO cost-basis and realized PnL tax report for any Base wallet address, structured as JSON for accountants.","exampleAgentPrompt":"Pull a FIFO realized gain/loss tax report for my Base wallet 0xAbC123...def456 — I need the full taxable event ledger with per-asset cost basis and mark-to-market USD values for my accountant.","exampleUseCases":[{"title":"Crypto tax season filing prep","prompt":"I need to file my crypto taxes and my accountant wants a structured breakdown of all realized gains and losses from my Base wallet 0x742d35Cc6634C0532925a3b8D4C9B8e1F2d3E4F5 — can you pull the FIFO cost-basis report with the full taxable event ledger?"},{"title":"DeFi portfolio PnL audit","prompt":"Can you run a realized PnL report for my Base chain wallet 0x1A2B3C4D5E6F7890abcdef1234567890ABCDEF12? I want to see per-asset holdings, how much I actually made or lost, and the event-by-event breakdown."},{"title":"Accountant-ready tax document export","prompt":"My accountant needs a JSON tax report for my Base wallet 0xDeAdBeEf1234567890abcdef1234567890AbCdEf showing all taxable events with FIFO gain/loss calculations and mark-to-market USD pricing — can you generate that?"}],"resultDescription":"A structured JSON report containing: per-asset on-chain holdings, FIFO-calculated realized gain/loss for each taxable event with interpolated event-time USD prices, a full taxable event ledger, and mark-to-market USD valuations — formatted for use by accountants or tax software.","failureModes":["Invalid or non-existent Base wallet address returns an error","Payment failure via x402 (insufficient USDC or wrong network) blocks report generation","Wallet with no transaction history may return empty ledger","Rate limits or upstream Blockscout/CoinGecko data unavailability may cause partial or failed reports","Non-Base chain addresses (e.g. Ethereum mainnet) are not supported"],"whenToPreferThis":"Choose this endpoint when you need a structured, accountant-ready FIFO tax cost-basis report specifically for a Base chain wallet. It is ideal when you need taxable event granularity, event-time price interpolation, and mark-to-market USD values in a single JSON payload. Prefer this over manual on-chain data aggregation or generic portfolio trackers when the output must be suitable for tax filing purposes.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-16T18:39:10.598Z","isFirstParty":false,"canonicalSlug":"verigrace-on-chain-tax-report-0448ea11"}