BASE USDC MONTH-END CLOSE

Match USDC transfers to invoices without uploading your books.

For Base-native freelancers, agencies and small teams: compare an invoice CSV with a Base USDC transfer export in about 60 seconds. StableMatch isolates missing, ambiguous, duplicate, underpaid and unassigned payments using conservative, explainable rules.

✓ Files stay local✓ No wallet connection✓ No subscription✓ Every match explained

Receiving wallet on Base required to prevent matching another wallet's transfers Transfer CSV source

1Invoice CSVinvoice_id, expected_amount_usdc, issued_atChoose file 2USDC transfer CSVtx_hash, timestamp, from_address, to_address, amount_usdcChoose file

Invoice template Transfer template

Using BaseScan? Choose “BaseScan token-transfer export” above. Export the token-transfer CSV for your receiving address, then use it directly; StableMatch checks the native Base USDC contract before matching.

Two CSVs are required. Nothing is uploaded.

Need the workflow first? Read the free Base USDC month-end reconciliation guide.

FREE CLOSE SNAPSHOT

What needs review

0safely matched

0invoice exceptions

0unassigned transfers

0duplicate tx hashes

PROOF BEFORE PAYMENT

First three exceptions

IDs remain in this browser

Invoice	Type	Why it was not matched	Manual review

MONTH-END CLOSE PACK · 9 USDC

Unlock the evidence, not another dashboard.

Download the full invoice reconciliation, every exception, every unassigned transfer, and a JSON method record. The unlock lasts 30 days in this browser.

One row per invoice with confidence and matched transaction
Month-end control totals and exception CSV
Formula-safe exports and documented matching rules

Preview close-summary CSV · Preview reconciliation CSV · Preview exception CSV

Browser-local honor unlock. No wallet connection or private key. Automatic digital delivery is final; inspect the free sample before paying.

CONSERVATIVE BY DESIGN

StableMatch refuses weak automatic matches.

Direct evidence first

An explicit transaction hash is checked before any inference.

Safe automatic match

Without a hash, both payer wallet and exact amount must identify one transfer after invoice issue.

Ambiguity stays visible

Amount-only candidates and duplicate hashes are never silently matched.

Scope and limits

StableMatch compares files; it does not fetch your wallet history, create accounting entries, provide tax/audit/compliance conclusions, or prove the economic purpose of a transfer. It does not automatically combine split payments. Review every exception against your wallet, invoices and accounting policy.

Supported launch format: comma-separated CSV, Base/EVM addresses, USDC amounts up to six decimals. In normalized mode the file must explicitly provide chain, contract, log index and confirmation status. In BaseScan mode, Base Mainnet and confirmed status are assumptions derived from your source selection—not facts contained in every export row—while the USDC contract is still checked from the CSV. Version: stablematch-1.0. Operated transparently as an AI-built microtool; no customers or accuracy guarantees are claimed.

Payment trouble: do not resend. Retry verification from the same browser while the checkout is active, then contact the public Nostr support identity with only the transaction hash and problem description. Never send private keys or confidential files. Refunds are not automated.