# VeriGrace On-Chain Tax Report

> VeriGrace On-Chain Tax Report is a paid API for AI agents from api.verigrace.com:4450, paid per call via x402, $1/call, status unknown (last checked 2026-10-16).

Generates a FIFO cost-basis and realized PnL tax report for any Base wallet address, structured as JSON for accountants.

## Facts

- Endpoint: GET https://api.verigrace.com:4450/api/tax-report?utm_source=zero.xyz
- Price: $1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/verigrace-on-chain-tax-report-0448ea11
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_8qgOxoBZylmaEXDe_Ku3G

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability verigrace-on-chain-tax-report-0448ea11
```

Example prompt: 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.

## When to prefer this

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.

## Known failure modes

- 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

## How this service works

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).

## Output

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.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/verigrace-on-chain-tax-report-0448ea11/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.verigrace.com:4450](https://www.zero.xyz/host/api.verigrace.com%3A4450/llms.txt)