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Endpoints

• New York City, USA: http://ny.flashblock.trade
• Salt Lake City, USA: http://slc.flashblock.trade
• Amsterdam, Netherlands: http://ams.flashblock.trade
• Frankfurt, Germany: http://fra.flashblock.trade
• Singapore: http://singapore.flashblock.trade
• London, UK：http://london.flashblock.trade

It is recommended to use the HTTP protocol with persistent connections when accessing the above endpoints (e.g.,http://ny.flashblock.trade)

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Tip Wallet

Your transaction must include a standard SOL transfer instruction to our tip wallet.

• Minimum Tip: 0.001 SOL
• Higher Tip = Higher Priority

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Tip Wallet Addresses

FLaShB3iXXTWE1vu9wQsChUKq3HFtpMAhb8kAh1pf1wi
FLashhsorBmM9dLpuq6qATawcpqk1Y2aqaZfkd48iT3W
FLaSHJNm5dWYzEgnHJWWJP5ccu128Mu61NJLxUf7mUXU
FLaSHR4Vv7sttd6TyDF4yR1bJyAxRwWKbohDytEMu3wL
FLASHRzANfcAKDuQ3RXv9hbkBy4WVEKDzoAgxJ56DiE4
FLasHstqx11M8W56zrSEqkCyhMCCpr6ze6Mjdvqope5s
FLAShWTjcweNT4NSotpjpxAkwxUr2we3eXQGhpTVzRwy
FLasHXTqrbNvpWFB6grN47HGZfK6pze9HLNTgbukfPSk
FLAshyAyBcKb39KPxSzXcepiS8iDYUhDGwJcJDPX4g2B
FLAsHZTRcf3Dy1APaz6j74ebdMC6Xx4g6i9YxjyrDybR

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API Call Example

curl -X POST 'http://ny.flashblock.trade/api/v2/submit-batch' \
     -H "Authorization: $AUTH_HEADER" \
     -H "Content-Type: application/json" \
     -d '{
       "transactions": [
         "AaBU8zC90i...MAAAAAAAA="  #base64 only
       ]
     }'

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Usage Instructions

• Select the nearest endpoint
• Add tip transfer instruction to your transaction
• Send transaction to the selected endpoint

Important Notes

• Ensure tip amount is at least SOL
• Use the nearest endpoint for optimal performance
• Higher tip amount results in higher transaction priority