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POST
/
api
/
v3
/
message
Send Message
curl --request POST \
  --url https://ton-mainnet.core.chainstack.com/f2a2411bce1e54a2658f2710cd7969c3/api/v3/api/v3/message \
  --header 'Content-Type: application/json' \
  --data '{
  "boc": "te6ccgEBAgEAqwAB4YgBVbC7Hu+g3htYXzst8L5ucV76NMzeBK3URJKebN2Y1kwADRfFu/r0HxgrOp/Iml8Li5x4gR10J5XYFS8z0fMWJ6JPeUF5xNSLrSDGFIqhJqkW1SEYQF8Dw5p4dI3oaFs4LCmpoxdkfKw0AAAAGAAcAQBoQgAwwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAL68="
}'
{
  "message_hash": "<string>"
}

​
Send Message

The message endpoint sends an external message to the TON network. This is the v3 API method for submitting signed transactions to the blockchain.
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Parameters

  • boc (string, required) — The serialized bag-of-cells in base64 format containing the signed external message.

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Response

  • message_hash (string) — The hash of the sent message, which can be used to track the transaction.

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Use case

The message endpoint is essential for any application that needs to send transactions via the v3 API:
  1. Wallet applications broadcasting user-signed transactions.
  2. Smart contract deployment and interaction.
  3. DApps submitting user transactions to the network.
  4. Automated systems executing on-chain operations.
  5. Token transfer services sending Jetton or NFT transfers.
Here’s an example of sending a transaction: 
curl -X POST \
  'https://ton-mainnet.core.chainstack.com/f2a2411bce1e54a2658f2710cd7969c3/api/v3/message' \
  -H 'accept: application/json' \
  -H 'Content-Type: application/json' \
  -d '{
  "boc": "te6ccgEBAgEAqwAB4YgBVbC7Hu+g3htYXzst8L5ucV76NMzeBK3URJKebN2Y1kwADRfFu/r0HxgrOp/Iml8Li5x4gR10J5XYFS8z0fMWJ6JPeUF5xNSLrSDGFIqhJqkW1SEYQF8Dw5p4dI3oaFs4LCmpoxdkfKw0AAAAGAAcAQBoQgAwwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAL68="
}'
Use the returned message_hash with the transactions or traces endpoints to track transaction status and execution results.

Body

application/json
​
boc
string
default:te6ccgEBAgEAqwAB4YgBVbC7Hu+g3htYXzst8L5ucV76NMzeBK3URJKebN2Y1kwADRfFu/r0HxgrOp/Iml8Li5x4gR10J5XYFS8z0fMWJ6JPeUF5xNSLrSDGFIqhJqkW1SEYQF8Dw5p4dI3oaFs4LCmpoxdkfKw0AAAAGAAcAQBoQgAwwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAL68=
required

The serialized bag-of-cells in base64 format

Response

200 - application/json

Successful response

​
message_hash
string

Hash of the sent message