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Goar

Goar is an Apache-2.0-licensed Go SDK and HTTP client that connects Go applications to the Arweave blockchain. It combines an Arweave client for network, transaction and block queries with wallet, signer and utility packages for creating, signing, sending and verifying transactions. The repository documents AR and Winston transfers, data uploads, tags, bundles, chunked uploads, GraphQL access and RSA threshold-signat

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Independent OpenViST project profile, based on linked sources.

Goar — OpenViST project profile in Developer Tools.
OpenViST project illustration. See the linked sources for product details.
Understand the project

Practical overview

When it fits

Use Goar when a Go application needs programmatic access to Arweave wallet, transaction, data-upload or query functions rather than a general-purpose blockchain interface.

Who it is for

  • Go developers integrating Arweave into applications or services.
  • Teams building wallet, transaction or data-upload tooling for Arweave.
  • Developers creating CLI, server, cloud or self-hosted integrations.

Documented uses

  • Query Arweave transactions, blocks, balances and network data.
  • Create wallets from keyfiles and sign Arweave transactions.
  • Send AR, Winston or data transactions to Arweave.
  • Upload larger data with chunking and resume an interrupted upload.
  • Create and verify signatures, bundles and RSA threshold signatures.
Before you choose

Requirements & limits

The repository is public and identifies an Apache-2.0 license. The README provides Go installation and usage examples. It also states that maintenance has migrated to the PermaDAO goar repository.

  • Go is required for the documented SDK and examples.
  • A wallet keyfile is required for the wallet and transfer examples.
  • The client and wallet are initialized against an Arweave node URL.
  • The package documents chunked uploads for larger data and resumable transfers.
  • The repository supports Arweave transaction format 2 for the documented chunk-transaction flow.

Check current requirements in the official documentation. Source-based guidance does not mean OpenViST has run or independently tested this project.

Source-based practical guide

Set up a Go wallet for an Arweave transfer

Create a wallet from a keyfile and prepare a documented AR or Winston transfer.

Before you start

  • Go project using the Goar package.
  • An Arweave wallet keyfile.
  • An Arweave node URL, such as https://arweave.net.
  • A target Arweave address and transfer amount.

Steps

  1. Install the package with the command below.

    Documented command
    go get github.com/everFinance/goar

  2. Create a wallet with NewWalletFromPath, providing the keyfile path and Arweave node URL.

  3. Call SendAR with an amount, target address and tags; the README also documents SendWinston for Winston-denominated transfers.

  4. Read the returned transaction ID and error value.

Expected outcome

The documented example returns a transaction object and transaction ID after the wallet submission call.

Guide limitations

  • The example does not establish that a transfer will succeed on a live network.
  • Private-key handling, funding and transaction confirmation procedures are not covered in the supplied material.
  • The repository README directs users to the maintained PermaDAO repository for the latest version.
Documentation 1 ↗
Evidence and transparency

Sources & review

Official repository ↗
Source record details
Source availability
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Sources checked
3 October 2026
Original website title
everFinance/goar · Official homepage title · retained in its source language
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