# \#docs **URL:** https://community.fireblocks.com/tag/docs/1.md [Latest](https://community.fireblocks.com/latest.md) · [Categories](https://community.fireblocks.com/categories.md) · [Tags](https://community.fireblocks.com/tags.md) --- ## [API User Role for Transaction Initiation Only (No Approval) - Finance Ops Workspace](https://community.fireblocks.com/t/api-user-role-for-transaction-initiation-only-no-approval-finance-ops-workspace/3184)
**Author:** [@bulapu](https://community.fireblocks.com/u/bulapu)\ **Replies:** 2\ **Last updated:** [July 16, 2026, 11:02pm UTC](https://community.fireblocks.com/t/api-user-role-for-transaction-initiation-only-no-approval-finance-ops-workspace/3184 "2026-07-16T23:02:01Z")
Hi Fireblocks Support, I want to set up an API user on our Finance Ops workspace. (my user id : bulapu@ripple.com) The API user will be called from an external automation tool (Tines) and should only be able to submit/… --- ## [EIP-7702 set\_code with Fireblock Wallet](https://community.fireblocks.com/t/eip-7702-set-code-with-fireblock-wallet/2928)
**Author:** [@ccosnett](https://community.fireblocks.com/u/ccosnett)\ **Replies:** 4\ **Last updated:** [April 14, 2026, 9:16am UTC](https://community.fireblocks.com/t/eip-7702-set-code-with-fireblock-wallet/2928 "2026-04-14T09:16:37Z")
Fireblocks internally uses EIP-7702 internally for gasless transactions. We would like to take advantage of EIP-7702 on our Fireblocks account too. How can we 7702-set\_code to an arbitrary contract of our choosing? Pl… --- ## [Fireblocks V2 signature validation on PHP](https://community.fireblocks.com/t/fireblocks-v2-signature-validation-on-php/3083)
**Author:** [@ssj4maiko](https://community.fireblocks.com/u/ssj4maiko)\ **Replies:** 0\ **Last updated:** [January 21, 2026, 7:39pm UTC](https://community.fireblocks.com/t/fireblocks-v2-signature-validation-on-php/3083 "2026-01-21T19:39:02Z")
I was previously helped by a post here to get Fireblocks signature validation on PHP, so with V2 coming, I had to get it work by myself now, took some time until I got it to work fully, use Firebase\\JWT\\JWT; use Firebas… --- ## [Request to list new TON asset in Sandbox](https://community.fireblocks.com/t/request-to-list-new-ton-asset-in-sandbox/3004)
**Author:** [@luxeave](https://community.fireblocks.com/u/luxeave)\ **Replies:** 0\ **Last updated:** [October 28, 2025, 1:18pm UTC](https://community.fireblocks.com/t/request-to-list-new-ton-asset-in-sandbox/3004 "2025-10-28T13:18:39Z")
Hi, Fireblocks team, I want to request help to list new JIDR\_TON\_TEST\_V4 in sandbox. The new contract address is : kQALFpBRkcNnpeXb12PDjo-7IcweFL2k14F5WqpCLBEb0vYO Tonviewer: https://testnet.tonviewer.com/kQALFpBRkcN… --- ## [Bug on XRP description](https://community.fireblocks.com/t/bug-on-xrp-description/2998)
**Author:** [@regisbsb](https://community.fireblocks.com/u/regisbsb)\ **Replies:** 0\ **Last updated:** [October 20, 2025, 3:45pm UTC](https://community.fireblocks.com/t/bug-on-xrp-description/2998 "2025-10-20T15:45:29Z")
I think it broke because of the html like description. maybe change to square brackets? For XRP, use \:\, for all other assets --- ## [Help with correct sequence for real estate tokenization](https://community.fireblocks.com/t/help-with-correct-sequence-for-real-estate-tokenization/2847)
**Author:** [@basit](https://community.fireblocks.com/u/basit)\ **Replies:** 0\ **Last updated:** [August 29, 2025, 11:38am UTC](https://community.fireblocks.com/t/help-with-correct-sequence-for-real-estate-tokenization/2847 "2025-08-29T11:38:40Z")
hey everyone I am new here testing the sandbox and I hit a bump on the road. I am building a MVP to fractionalize real estate into ERC20F tokens, I want to confirm the correct sequence for tokenization and contract inte… --- ## [Bug in documentation](https://community.fireblocks.com/t/bug-in-documentation/2706)
**Author:** [@michaldo](https://community.fireblocks.com/u/michaldo)\ **Replies:** 2\ **Last updated:** [August 26, 2025, 3:07am UTC](https://community.fireblocks.com/t/bug-in-documentation/2706 "2025-08-26T03:07:36Z")
Hi, there is bug in webhook documentation Transaction events In documentation: transaction.approval.status.updated In real: transaction.approval\_status.updated --- ## [Webhook V2 options not available in Sandbox + 403 error with TS-SDK](https://community.fireblocks.com/t/webhook-v2-options-not-available-in-sandbox-403-error-with-ts-sdk/2643)
**Author:** [@bilal](https://community.fireblocks.com/u/bilal)\ **Replies:** 4\ **Last updated:** [August 19, 2025, 5:30pm UTC](https://community.fireblocks.com/t/webhook-v2-options-not-available-in-sandbox-403-error-with-ts-sdk/2643 "2025-08-19T17:30:32Z")
Hi everyone, I’m working with the Fireblocks Sandbox environment, and trying to set up Webhook V2 using the TypeScript SDK. I’m logged in as a non-signing admin, and I can successfully use basic SDK operations like: co… --- ## [Mismatch between /exchange\_accounts/paged API response and documented schema](https://community.fireblocks.com/t/mismatch-between-exchange-accounts-paged-api-response-and-documented-schema/2667)
**Author:** [@clandast](https://community.fireblocks.com/u/clandast)\ **Replies:** 1\ **Last updated:** [August 14, 2025, 6:48am UTC](https://community.fireblocks.com/t/mismatch-between-exchange-accounts-paged-api-response-and-documented-schema/2667 "2025-08-14T06:48:19Z")
Hi, In the API docs, GET /v1/exchange\_accounts/paged is described as returning an array of objects, each containing exchangeAccount (array), paging (object), prevUrl, and nextUrl. However, when I call this endpoint in … --- ## [Using Python-SDK could not create new transaction](https://community.fireblocks.com/t/using-python-sdk-could-not-create-new-transaction/2435)
**Author:** [@dishant-infi](https://community.fireblocks.com/u/dishant-infi)\ **Replies:** 3\ **Last updated:** [May 25, 2025, 2:28pm UTC](https://community.fireblocks.com/t/using-python-sdk-could-not-create-new-transaction/2435 "2025-05-25T14:28:06Z")
I am using Latest fireblock Python SDK to integrate with fireblocks api. With some trial and error i successfully created new vault account and BTC\_TEST asset wallet. But when i tried to create a Transfer transaction fr… --- ## [Fireblocks SDK error: "Creating addresses for the provided asset is not supported" for BNB\_TEST and ETH\_TEST networks](https://community.fireblocks.com/t/fireblocks-sdk-error-creating-addresses-for-the-provided-asset-is-not-supported-for-bnb-test-and-eth-test-networks/2401)
**Author:** [@Osiz](https://community.fireblocks.com/u/Osiz)\ **Replies:** 1\ **Last updated:** [April 29, 2025, 2:15am UTC](https://community.fireblocks.com/t/fireblocks-sdk-error-creating-addresses-for-the-provided-asset-is-not-supported-for-bnb-test-and-eth-test-networks/2401 "2025-04-29T02:15:53Z")
I’m currently working with a Fireblocks sandbox account that includes multiple networks such as BTC\_TEST and XRP\_TEST, both functioning properly with updated balances and transfers. However, I encounter an error when tr… --- ## [Message: 'Unauthorized: Token was not accepted.',](https://community.fireblocks.com/t/message-unauthorized-token-was-not-accepted/2387)
**Author:** [@rishi33785](https://community.fireblocks.com/u/rishi33785)\ **Replies:** 1\ **Last updated:** [April 29, 2025, 2:00am UTC](https://community.fireblocks.com/t/message-unauthorized-token-was-not-accepted/2387 "2025-04-29T02:00:52Z")
code async createApiUser(){ const projectRoot = join(\_\_dirname, ‘..’); const secretKeyPath = join(projectRoot, ‘src’, ‘fireblocks\_secret.key’); try { const data = await this.fireblocks.apiUser.createApiUser({ creat… --- ## [Lacking permissions](https://community.fireblocks.com/t/lacking-permissions/2386)
**Author:** [@rishi33785](https://community.fireblocks.com/u/rishi33785)\ **Replies:** 1\ **Last updated:** [April 25, 2025, 8:21am UTC](https://community.fireblocks.com/t/lacking-permissions/2386 "2025-04-25T08:21:02Z")
My Logs message: ‘Lacking permissions’, staus: 403 my code async getApiUser(){ try{ const data = await this.fireblocks.apiUser.getApiUsers() console.log(“api users”,JSON.stringify(data,null,2)) }catch(err){ cons… --- ## [End-User Transaction Approval Process in Fireblocks NCW Implementation](https://community.fireblocks.com/t/end-user-transaction-approval-process-in-fireblocks-ncw-implementation/2268)
**Author:** [@xls](https://community.fireblocks.com/u/xls)\ **Replies:** 1\ **Last updated:** [March 15, 2025, 12:52am UTC](https://community.fireblocks.com/t/end-user-transaction-approval-process-in-fireblocks-ncw-implementation/2268 "2025-03-15T00:52:01Z")
Hi Fireblocks Team, I am currently implementing Fireblocks’ Non-Custodial Wallet (NCW) solution for our application and have questions regarding the Transaction Authorization Policy (TAP) as it relates to end-user appro… --- ## [Problem in linking contract to fireblocks after deploying through hardhat](https://community.fireblocks.com/t/problem-in-linking-contract-to-fireblocks-after-deploying-through-hardhat/2291)
**Author:** [@aishna](https://community.fireblocks.com/u/aishna)\ **Replies:** 2\ **Last updated:** [March 10, 2025, 5:02am UTC](https://community.fireblocks.com/t/problem-in-linking-contract-to-fireblocks-after-deploying-through-hardhat/2291 "2025-03-10T05:02:43Z")
When im trying to hit the link contract API it is getting linked but im getting this error while trying to get a response from it : Unexpected IOException (of type java.io.IOException): Failed deserialization for TokenL… --- ## [Can't create Solana connection via FireblocksConnectionAdapter in example with Sanbox account](https://community.fireblocks.com/t/cant-create-solana-connection-via-fireblocksconnectionadapter-in-example-with-sanbox-account/2243)
**Author:** [@himitsuko](https://community.fireblocks.com/u/himitsuko)\ **Replies:** 1\ **Last updated:** [February 27, 2025, 6:39pm UTC](https://community.fireblocks.com/t/cant-create-solana-connection-via-fireblocksconnectionadapter-in-example-with-sanbox-account/2243 "2025-02-27T18:39:30Z")
I try to use GitHub - fireblocks/solana-web3-adapter: Fireblocks Solana Web3.js Connection Adapter to send Solana transaction via sandbox api. But no luck, the error happen as below: Error: Failed to initialize Fireblo… --- ## [Resend Webhook Interval](https://community.fireblocks.com/t/resend-webhook-interval/1726)
**Author:** [@hisyamdarwis](https://community.fireblocks.com/u/hisyamdarwis)\ **Replies:** 0\ **Last updated:** [November 20, 2024, 3:58am UTC](https://community.fireblocks.com/t/resend-webhook-interval/1726 "2024-11-20T03:58:47Z")
Currently, I use the resend API when certain conditions are met. Can i get the best recommendation for the best interval to calling the resend API again? --- ## [Resend Webhook Body Param](https://community.fireblocks.com/t/resend-webhook-body-param/1622)
**Author:** [@hisyamdarwis](https://community.fireblocks.com/u/hisyamdarwis)\ **Replies:** 4\ **Last updated:** [November 19, 2024, 2:13am UTC](https://community.fireblocks.com/t/resend-webhook-body-param/1622 "2024-11-19T02:13:18Z")
Currently, I’m using the webhooks/resend/{txId} API, but after I set the boolean values for the body parameters, it only sends once. I want this API to keep resending until it meets certain conditions. I’m considering se… --- ## [NCW Backup and Recover ambiguity](https://community.fireblocks.com/t/ncw-backup-and-recover-ambiguity/1506)
**Author:** [@sidd](https://community.fireblocks.com/u/sidd)\ **Replies:** 0\ **Last updated:** [October 8, 2024, 1:11pm UTC](https://community.fireblocks.com/t/ncw-backup-and-recover-ambiguity/1506 "2024-10-08T13:11:30Z")
Hi, So I have integrated Non custodial wallet and while backing up and recovering the keys I need clarification in respect to how the documentation is there. It is stated that while recovering you should initialize th… --- ## [Need help in deploying ERC-721F with template id: 8321416b-682d-4557-99d8-8eb61829f6ba using API](https://community.fireblocks.com/t/need-help-in-deploying-erc-721f-with-template-id-8321416b-682d-4557-99d8-8eb61829f6ba-using-api/1436)
**Author:** [@Taimoor](https://community.fireblocks.com/u/Taimoor)\ **Replies:** 2\ **Last updated:** [September 19, 2024, 2:00pm UTC](https://community.fireblocks.com/t/need-help-in-deploying-erc-721f-with-template-id-8321416b-682d-4557-99d8-8eb61829f6ba-using-api/1436 "2024-09-19T14:00:10Z")
Hi, I can deploy the simple NFT Collection By Fireblocks using the API. But I need to deploy the ERC-721F with proxy now with the API. In Fireblocks UI, I can create the contract without any problem and what I have seen … --- ## [Webhooks - Java](https://community.fireblocks.com/t/webhooks-java/205)
**Author:** [@moza](https://community.fireblocks.com/u/moza)\ **Replies:** 4\ **Last updated:** [August 26, 2024, 11:37am UTC](https://community.fireblocks.com/t/webhooks-java/205 "2024-08-26T11:37:31Z")
I translated the Python Webhook code on the site into Java and my code is below. Any thoughts on why this isn’t pulling values from Fireblocks? Is my public key correct? I am using the https://api.fireblocks.io/v1 instan… --- ## [Is there a way to waitForTransactionReceipt like Wagmi in fireblocks](https://community.fireblocks.com/t/is-there-a-way-to-waitfortransactionreceipt-like-wagmi-in-fireblocks/1269)
**Author:** [@adityapadekar](https://community.fireblocks.com/u/adityapadekar)\ **Replies:** 1\ **Last updated:** [August 2, 2024, 7:00pm UTC](https://community.fireblocks.com/t/is-there-a-way-to-waitfortransactionreceipt-like-wagmi-in-fireblocks/1269 "2024-08-02T19:00:47Z")
I am looking for a way to wait and block the execution till the transaction either goes through of failed and further operation is dependent on the success status --- ## [Best way to fetch an ERC20 asset ID by its contract address](https://community.fireblocks.com/t/best-way-to-fetch-an-erc20-asset-id-by-its-contract-address/1257)
**Author:** [@jkraut](https://community.fireblocks.com/u/jkraut)\ **Replies:** 1\ **Last updated:** [July 31, 2024, 7:04pm UTC](https://community.fireblocks.com/t/best-way-to-fetch-an-erc20-asset-id-by-its-contract-address/1257 "2024-07-31T19:04:00Z")
I want to fetch the asset ID of an asset by its ERC20 contract address. One way to do this would be to hit v1/supported\_assets and filter through all the contract\_address fields on the client. This is very slow given th… --- ## [Sporadic occurrence of error 1444](https://community.fireblocks.com/t/sporadic-occurrence-of-error-1444/1219)
**Author:** [@trever\_mwr](https://community.fireblocks.com/u/trever_mwr)\ **Replies:** 1\ **Last updated:** [July 24, 2024, 12:11pm UTC](https://community.fireblocks.com/t/sporadic-occurrence-of-error-1444/1219 "2024-07-24T12:11:29Z")
I use the Fireblocks API to fetch all withdrawals for our wallets. Most of the time this works correctly. However, I occasionally find the following response in our server logs: “message”: “Failed getting transaction lis… --- ## [fireblocksSecretKey not registering](https://community.fireblocks.com/t/fireblockssecretkey-not-registering/1201)
**Author:** [@vadneyk](https://community.fireblocks.com/u/vadneyk)\ **Replies:** 3\ **Last updated:** [July 17, 2024, 1:47am UTC](https://community.fireblocks.com/t/fireblockssecretkey-not-registering/1201 "2024-07-17T01:47:03Z")
I am going through the tutorial here and have the following settings but when I run the “List Vault Accounts” I get the following error: There was an error in evaluating the Pre-request Script:Error: Selected enviro… --- ## [Unable to see the NCW details](https://community.fireblocks.com/t/unable-to-see-the-ncw-details/1170)
**Author:** [@Chethan.KV](https://community.fireblocks.com/u/Chethan.KV)\ **Replies:** 1\ **Last updated:** [July 8, 2024, 5:44pm UTC](https://community.fireblocks.com/t/unable-to-see-the-ncw-details/1170 "2024-07-08T17:44:19Z")
We have created a wallet and account using the demo application, also used our Sandbox credentials. In the Sandbox, I can able to see the transaction lists but unable to see the Wallet and Account details. Do we need to … --- ## [No Gas Price for Tron / TRX USDT?](https://community.fireblocks.com/t/no-gas-price-for-tron-trx-usdt/1142)
**Author:** [@tobi.reap](https://community.fireblocks.com/u/tobi.reap)\ **Replies:** 3\ **Last updated:** [July 1, 2024, 8:06pm UTC](https://community.fireblocks.com/t/no-gas-price-for-tron-trx-usdt/1142 "2024-07-01T20:06:12Z")
For transaction webhook data for Polygon, the gas price amount is present under feeInfo field. However, when we’re receiving webhook data for Tron USDT, it doesn’t have gas price? Is there a reason for this or there’s an… --- ## [Problem with creating new API user in Sandbox](https://community.fireblocks.com/t/problem-with-creating-new-api-user-in-sandbox/1080)
**Author:** [@Abigail](https://community.fireblocks.com/u/Abigail)\ **Replies:** 4\ **Last updated:** [May 31, 2024, 7:46pm UTC](https://community.fireblocks.com/t/problem-with-creating-new-api-user-in-sandbox/1080 "2024-05-31T19:46:10Z")
Hello, I’m having a problem with creating new API user in Sandbox. According to sandbox quickstart(Developer Sandbox Quickstart Guide), I can choose a ‘Non-signing Admin’ with ‘Automatic CSR’ but I can’t see this in my… --- ## [How to integrate wallet as a service?](https://community.fireblocks.com/t/how-to-integrate-wallet-as-a-service/982)
**Author:** [@Maulikbk](https://community.fireblocks.com/u/Maulikbk)\ **Replies:** 5\ **Last updated:** [May 6, 2024, 1:46am UTC](https://community.fireblocks.com/t/how-to-integrate-wallet-as-a-service/982 "2024-05-06T01:46:16Z")
I need to integrate Wallet as a service in my project but I have no idea about Fireblock wallet system --- ## [Data: { message: ‘invalid signature’, code: -1 }](https://community.fireblocks.com/t/data-message-invalid-signature-code-1/743)
**Author:** [@Akash](https://community.fireblocks.com/u/Akash)\ **Replies:** 3\ **Last updated:** [February 28, 2024, 5:07pm UTC](https://community.fireblocks.com/t/data-message-invalid-signature-code-1/743 "2024-02-28T17:07:56Z")
"I am currently in the process of setting up the ncw-backend-demo repository to test the APIs. On the frontend side, I have a Flutter setup. When the login event is triggered from the frontend, three consecutive routes a… [Next page](https://community.fireblocks.com/tag/docs/1.md?match_all_tags=true&page=1&tags%5B%5D=docs)