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Aomi applies the same execution model to EVM and SVM requests, while preserving the transaction rules of each virtual machine. On Solana, the runtime routes a request by cluster, assembles instructions into a legacy or versioned transaction, applies the App’s guards, requests the permitted signature, and submits through the selected broadcaster. providers.toml connects each recognized Solana cluster to an RPC endpoint. It also defines an optional fallback for transient transport failures. This configuration controls network access. It does not choose who may sign, change an App’s program allowlist, or select the broadcaster for a transaction. Read Solana bundle for the instruction assembly, simulation, signing, and submission lifecycle. This page focuses on provider configuration and the network-specific boundaries around that lifecycle.

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Configure Solana providers

Declare one [solana.<cluster>] table for each cluster you want to configure. rpc_url is required. The remaining fields have defaults.
providers.toml
The fields have direct effects:
  • rpc_url selects the primary RPC for the cluster. It supports {ENV_VAR} placeholders.
  • fallback_urls supplies ordered alternatives. With the current single_fallback policy, Aomi tries only the first URL after a transient transport failure.
  • retry_policy should remain single_fallback.
  • local marks a developer endpoint. It defaults to true for localnet and false for the public clusters.
  • kind should remain rpc.
Aomi resolves placeholders and canonicalizes cluster names when it loads the file. Missing environment variables, unknown clusters, and duplicate aliases are startup errors. For example, [solana.mainnet] and [solana.mainnet-beta] refer to the same cluster, so you cannot declare both. Pass a specific file with --providers <path> or set PROVIDERS_TOML. Without either option, Aomi searches for providers.toml from the current directory upward.

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Add or change a Solana cluster

Use these steps to point Aomi at another provider:
  1. Choose one of the recognized clusters: mainnet-beta, devnet, testnet, or localnet.
  2. Add or update its [solana.<cluster>] table.
  3. Set rpc_url to the primary endpoint. Use an environment placeholder for any credential in the URL.
  4. Add one fallback_urls entry if the cluster needs provider failover.
  5. Restart the process that loads providers.toml.
providers.toml can change the provider for a recognized cluster. It cannot define a fifth SVM network. Supporting another SVM network requires a new cluster implementation so parsing, wallet routing, guards, and transaction submission agree on its identity. When a cluster has no explicit table, Aomi resolves its RPC in this order:
  1. The legacy SOLANA_<CLUSTER>_RPC_URL environment variable.
  2. A Helius URL derived from HELIUS_API_KEY for mainnet or devnet.
  3. The public cluster default.
A non-empty rpc_url in [solana.<cluster>] always takes priority. A blank value falls through to the same resolution order instead of creating an unusable RPC client.

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Supported clusters

Every wallet request carries a canonical cluster identifier. Aomi rejects an unknown label instead of silently routing the request to a different network. The hosted wallet selector and MCP endpoint expose mainnet, devnet, and testnet. Localnet remains available to a locally configured runtime.

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Stage a Solana transaction

An App can stage Solana work in two forms:
  • svm_stage_ix accepts instructions composed by the App. Aomi can inspect each program ID and instruction discriminator before it creates the wallet request.
  • svm_stage_tx accepts a venue-built base64 transaction, such as a VersionedTransaction returned by a swap service.
Solana and EVM pending transactions use separate identifiers. A selector such as svm:tx-1 cannot resolve to an EVM request.

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Request kinds

The request kind determines what the wallet does after review: Aomi accepts legacy and versioned Solana transactions. In the browser, a connected Solana wallet handles attended requests. In the CLI, aomi tx sign can use a local Solana keypair.

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Choose the broadcaster

The staged transaction records who submits it. The model cannot change this choice after assembly:
  • wallet asks the connected wallet to sign and submit. This is the standard attended flow.
  • venue returns the signed bytes to the App’s submit tool so the venue can broadcast them.
  • aomi lets the runtime submit through the configured cluster RPC after it verifies the signed bytes and expected wallet.
Pending Solana transactions execute sequentially. A transaction that reaches confirmed remains committed even if a later transaction fails. Solana does not roll back an earlier transaction across a multi-transaction sequence.

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Guards

A guarded App can restrict three parts of a Solana request:
  • Programs. Every instruction’s program_id must be allowed.
  • Instruction discriminators. Each inspectable Anchor discriminator must be allowed.
  • Clusters. The request must name an allowed cluster.
The guard fails closed when it cannot inspect required data. A venue-built transaction staged through svm_stage_tx cannot be checked against program and discriminator allowlists. Guarded Apps should compose instructions through svm_stage_ix when those checks are required.

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Simulation boundaries

Aomi can simulate a staged Solana transaction against cloned accounts and programs, with cluster RPC simulation as a fallback. Solana simulation is a tool result rather than a universal wallet-request gate. Your wallet remains the final review surface for an attended request. Provider failover also has a narrow scope. Aomi retries the first fallback RPC only for a transport-class failure. A structured RPC error, invalid transaction, signing error, or decoding error returns immediately because a different endpoint should not change its meaning.

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Next

Solana bundle

Follow instruction assembly, simulation, signing, and submission.

EVM

Configure EVM providers and understand fork simulation and broadcast routing.

Permission model

See how wallet policy controls who may sign on either virtual machine.
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Last modified on August 17, 2026