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TRON API method that adds liquidity to an existing exchange trading pair on the TRON decentralized exchange.
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Parameters

  • owner_address — the address providing liquidity (base58 with visible: true, or hex with visible: false).
  • exchange_id — unique identifier of the exchange pair to add liquidity to.
  • token_id — TRC10 token ID; use _ to denote TRX.
  • quant — integer amount to add (token base units; if TRX, specify in sun).
  • permission_id — optional permission ID for multi‑signature accounts.

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Response

Returns a transaction object containing:
  • txID — unique transaction identifier
  • raw_data — raw transaction data including contract details
  • raw_data_hex — hexadecimal representation of raw transaction data

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Use case

The wallet/exchangeinject method is used for:
  • Adding liquidity to existing trading pairs to earn trading fees
  • Increasing the depth and stability of token markets
  • Participating in liquidity mining and yield farming programs
  • Providing capital to support decentralized exchange operations

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curl example

Shell
curl --request POST \
  --url 'https://tron-mainnet.core.chainstack.com/95e61622bf6a8af293978377718e3b77/wallet/exchangeinject' \
  --header 'Content-Type: application/json' \
  --data '{
  "owner_address": "TLyqzVGLV1srkB7dToTAEqgDSfPtXRJZYH",
  "exchange_id": 1,
  "token_id": "1000001",
  "quant": 500000000000,
  "visible": true
}'
  • balances must be integers (do not quote numbers). When injecting TRX (using token_id: "_"), provide quant in sun (1 TRX = 1,000,000 sun).
  • the call returns an unsigned transaction; sign and broadcast it to finalize.
  • on mainnet, the exchange must exist, the token must match the pair, and the account must hold sufficient balance.