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API · 5-10 min · Spot · Deposits · Withdrawals · 100+ countries

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What’s covered

Spot trades

Buy, sell, and conversions.

Euro transactions

EUR deposits and fiat transactions.

Deposits and Withdrawals

On-chain deposits and withdrawals.

Trading Fees and Rebates

Fee records and trading rebates.

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Before you start

BL3P account

Active account with transaction history.

KoinX account

Free account - no credit card needed.

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Connect BL3P to KoinX

API Key syncs your full BL3P transaction history automatically - no file exports needed.

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Generate your BL3P API key

1

Log in to BL3P

Go to bl3p.eu and sign in to your account.
2

Open Security settings

Click on the Security section.
3

Name your API and request a new key

Under API Access, enter a name for your API key and click Request New Key.
4

Select Read Only and generate

Select Read Only and click Generate Key.
Select Read Only only. Never enable trading or withdrawal permissions on an API key connected to a third-party service.
5

Copy your API key and Secret Key

Copy both your API Key and Secret Key and store them securely. The Secret Key is shown only once.

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Connect BL3P to KoinX

1

Open KoinX Integrations

Log in to app.koinx.com -> Integrations -> Add Integration.
2

Select BL3P

Search for BL3P and select it.
3

Paste your keys and import

Paste your API Key and Secret Key into the respective fields and click Import Now.
Done. KoinX begins syncing your BL3P history. Large accounts may take a few minutes.
Once your BL3P data is in, head over to Tax Reports on KoinX - your capital gains, income breakdown, and country-specific crypto tax report are ready for you there.

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API key notes

  • Read Only is required - keys with broader permissions may be rejected by KoinX as a security measure.
  • Secret Key is shown once only - copy it immediately at the time of creation and store it securely.
  • Sync from account creation date - transaction history must cover the full period from when you opened your BL3P account with no gaps.

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Frequently asked questions

Read Only permissions only. This gives KoinX access to your full transaction history without the ability to place trades or move funds. Never generate an API key with broader permissions for a third-party service.
No. BL3P displays the Secret Key only once at the time of creation. Copy it immediately and store it securely. If lost, delete the key from Security -> API Access and generate a new one.
Yes. Tax filing is required if you have a BL3P account and are using it for transactions and generating profits. Follow the rules and regulations set by the relevant authority in your region.
No. BL3P does not provide tax-ready reports. By connecting your BL3P account to KoinX via API key, your full transaction history is imported automatically and a compliant, country-specific tax report is generated within minutes.
Yes. KoinX supports 100+ countries with dedicated report formats for India, the US, UK, Australia, Canada, Germany, and more. After importing your BL3P data, select your country to generate the correct report.

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Troubleshooting

Confirm the key was generated with Read Only permission in BL3P -> Security -> API Access. Delete the credentials in KoinX and re-enter both values carefully - copy directly from BL3P to avoid invisible characters.
Ensure the transaction history covers the full period from your BL3P account creation date with no gaps. Trigger a manual re-sync from KoinX -> Integrations -> BL3P. If records are still missing, disconnect and reconnect with a fresh API key.
Check the BL3P platform for ongoing maintenance. If the platform is operational, verify the key is still active under Security -> API Access. Regenerate if expired, re-enter credentials in KoinX, and trigger a fresh sync.
BL3P API keys can become inactive following account security changes. Log in to BL3P, check the key status under Security -> API Access, and regenerate if inactive. Update the new credentials in KoinX under Integrations -> BL3P -> Edit.
Delete the existing key from BL3P -> Security -> API Access, generate a new key with Read Only permission only, and reconnect in KoinX with the new credentials.
Check KoinX -> Integrations for duplicate BL3P connections and remove any extras. If a file was previously uploaded for the same period, delete those transactions before re-syncing via API.

Bybit Integration

Connect Bybit via API key or file upload.

Binance - File Upload

Export Binance CSVs for Spot, P2P, Earn, and Options.

Bitget - API Upload

Connect Bitget via Tax API Key or Normal API Key.

OKX Integration

Sync OKX trades and earn history via API or CSV.

Ready to generate your BL3P crypto tax report?

Create a free KoinX account - no credit card required. Import your BL3P transactions and generate a country-specific tax report in minutes.
Last modified on June 18, 2026