Blockrazor

Use POST /blockrazor with the same request shape described in the official BlockRazor docs. Bifrost supports both official BlockRazor HTTP contracts:

• v1 JSON body: /sendTransaction

• v2 low-latency plain text body: /v2/sendTransaction

Reference:

• https://blockrazor.gitbook.io/blockrazor/transaction-submission/fast/solana/send-transaction

• https://blockrazor.gitbook.io/blockrazor/transaction-submission/fast/solana/send-transaction-v2

Tip Addresses

Current BlockRazor tip addresses recognized by this Bifrost deployment:

• FjmZZrFvhnqqb9ThCuMVnENaM3JGVuGWNyCAxRJcFpg9

• 6No2i3aawzHsjtThw81iq1EXPJN6rh8eSJCLaYZfKDTG

• A9cWowVAiHe9pJfKAj3TJiN9VpbzMUq6E4kEvf5mUT22

• Gywj98ophM7GmkDdaWs4isqZnDdFCW7B46TXmKfvyqSm

• 68Pwb4jS7eZATjDfhmTXgRJjCiZmw1L7Huy4HNpnxJ3o

• 4ABhJh5rZPjv63RBJBuyWzBK3g9gWMUQdTZP2kiW31V9

• B2M4NG5eyZp5SBQrSdtemzk5TqVuaWGQnowGaCBt8GyM

• 5jA59cXMKQqZAVdtopv8q3yyw9SYfiE3vUCbt7p8MfVf

• 5YktoWygr1Bp9wiS1xtMtUki1PeYuuzuCF98tqwYxf61

• 295Avbam4qGShBYK7E9H5Ldew4B3WyJGmgmXfiWdeeyV

• EDi4rSy2LZgKJX74mbLTFk4mxoTgT6F7HxxzG2HBAFyK

• BnGKHAC386n4Qmv9xtpBVbRaUTKixjBe3oagkPFKtoy6

• Dd7K2Fp7AtoN8xCghKDRmyqr5U169t48Tw5fEd3wT9mq

• AP6qExwrbRgBAVaehg4b5xHENX815sMabtBzUzVB4v8S

v1 JSON Contract

Send Content-Type: application/json and the upstream JSON body:

{
  "transaction": "<base64-transaction>",
  "mode": "fast",
  "safeWindow": 3,
  "revertProtection": false
}

Fields:

• transaction: required, signed transaction string

• mode: optional, fast or sandwichMitigation

• safeWindow: optional, 3-13

• revertProtection: optional boolean

• Auth: upstream v1 uses the apikey HTTP header

Example:

curl -X POST https://your-bifrost-endpoint/blockrazor \
  -H "Content-Type: application/json" \
  -H "apikey: your-blockrazor-api-key" \
  -d '{
    "transaction": "your-base64-transaction",
    "mode": "fast",
    "revertProtection": false
  }'

v2 Plain Text Contract

Send Content-Type: text/plain and put request parameters in the query string, exactly as BlockRazor v2 expects.

curl -X POST 'https://your-bifrost-endpoint/blockrazor?mode=fast&revertProtection=true' \
  -H "Content-Type: text/plain" \
  -d 'your-base64-transaction'

Notes:

• Upstream v2 expects Base64 transaction text in the body

• Upstream v2 only permits Content-Type: text/plain

• Query params such as mode, safeWindow, revertProtection, and auth are forwarded upstream

• If your Bifrost deployment already has BlockRazor credentials configured, you can usually omit auth

Response

• For v1, BlockRazor returns JSON with a signature field.

• For v2, BlockRazor returns standard HTTP status codes as documented upstream.