# Gas fee for price update on TON **URL:** \ **Category:** Price Feeds\ **Created:** [September 18, 2025, 10:47am UTC](https://dev-forum.pyth.network/t/gas-fee-for-price-update-on-ton/409 "2025-09-18T10:47:56Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![murka](https://yyz2.discourse-cdn.com/flex034/user_avatar/dev-forum.pyth.network/murka/32/130_2.png) [@murka](https://dev-forum.pyth.network/u/murka)\ **Post date:** [September 18, 2025, 10:47am UTC](https://dev-forum.pyth.network/t/gas-fee-for-price-update-on-ton/409/1 "2025-09-18T10:47:56Z")
• 🔗 **Chain** : TON testnet • ⏱ **Timestamp** : BlockID: (0,6000000000000000,37318914) • Contact Telegram: @shaymurzin Hi there, I cannot update more than 4 feeds, I got gas out error, the impl based on docs 4 feeds: [TON Explorer: Transaction · a7ec…bd4f](https://testnet.tonviewer.com/transaction/a7ece4b627318d12f43852cbac1b49b80810d6bf9c3d7954f93b21cd9b81bd4f) 5 feeds: [TON Explorer: Transaction · bbbd…414c](https://testnet.tonviewer.com/transaction/bbbdbedeb59167e27de69cd5759bc1c11407b5a7feccc0b8846eab41b2d5414c) Gas prediction calculates on contract methods: ```javascript const updateFee = await contract.getUpdateFee(updateData); console.log(“Update fee:”, updateFee); const totalFee = calculateUpdatePriceFeedsFee(BigInt(updateFee)) + BigInt(updateFee); console.log(“Total fee:”, totalFee); ``` but if I sent 1 TON all of updates works: [TON Explorer: Transaction · 747d…c82b](https://testnet.tonviewer.com/transaction/747d7b6ab1a9624937e92f0f3c5f5d10cbaf49a2b6072e15285bee8bc46fc82b) I also cannot update more than 6 feeds with more tons for gas instead of calculateUpdatePriceFeedsFee: 6 feeds: [TON Explorer: Transaction · f0de…880f](https://testnet.tonviewer.com/transaction/f0dee040a52c12b1cf91cbb52ba9342213f204fd5ed93f54ed08c20d69e1880f) 7 feeds: [TON Explorer: Transaction · 9541…cede](https://testnet.tonviewer.com/transaction/9541c16b54d1baba7047ae00d9ba0c9fa3dcfcd2318577920407e069dfd0cede) So, my question: 1. the `calculateUpdatePriceFeedsFee` is correctly works? 2. Can I update more than 6 feeds per one `sendUpdatePriceFeeds`? ---
**Author:** ![ali](https://avatars.discourse-cdn.com/v4/letter/a/8c91f0/32.png) [@ali](https://dev-forum.pyth.network/u/ali)\ **Post date:** [September 22, 2025, 12:18pm UTC](https://dev-forum.pyth.network/t/gas-fee-for-price-update-on-ton/409/2 "2025-09-22T12:18:04Z")
Hi @murka , Yeah due to gas limits you cannot update more than 6 feeds at the moment. An upgrade is being rolled out that lets you update 7 feeds at once. I suspect the estimation on the `calculateUpdatePriceFeedsFee` is inaccurate (see [here](https://github.com/pyth-network/pyth-crosschain/blob/main/target_chains/ton/sdk/js/src/index.ts#L340-L346)). Would appreciate it if you could contribute to us by fixing it. ---
**Author:** ![murka](https://yyz2.discourse-cdn.com/flex034/user_avatar/dev-forum.pyth.network/murka/32/130_2.png) [@murka](https://dev-forum.pyth.network/u/murka)\ **Post date:** [September 22, 2025, 4:13pm UTC](https://dev-forum.pyth.network/t/gas-fee-for-price-update-on-ton/409/4 "2025-09-22T16:13:32Z")
Hi @ali, Thanks you for reply! What about the date of upgrade on mainnet? It is a critical update for [EVAA Main pool](https://tonviewer.com/EQC8rUZqR_pWV1BylWUlPNBzyiTYVoBEmQkMIQDZXICfnuRr). Can you deploy upgraded smartcontract separate of actual smartcontract? It is will be useful for testing. ---
**Author:** ![murka](https://yyz2.discourse-cdn.com/flex034/user_avatar/dev-forum.pyth.network/murka/32/130_2.png) [@murka](https://dev-forum.pyth.network/u/murka)\ **Post date:** [October 1, 2025, 8:19am UTC](https://dev-forum.pyth.network/t/gas-fee-for-price-update-on-ton/409/5 "2025-10-01T08:19:46Z")
hi there, do you have any updates?