> ## Documentation Index
> Fetch the complete documentation index at: https://docs.privy.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Chain support

> Supported blockchains, support tiers, and integration guides for Privy wallets

Privy wallets support multiple blockchain ecosystems across **three tiers**. Each tier builds on the one before it. The higher the tier, the more Privy manages on your app's behalf.

## Capabilities by tier

| Capability                | Tier 1 | Tier 2 | Tier 3 |
| ------------------------- | :----: | :----: | :----: |
| Create and export wallets |    ✓   |    ✓   |    ✓   |
| Sign hashes and messages  |    ✓   |    ✓   |    ✓   |
| Sign transactions         |    —   |    ✓   |    ✓   |
| Send transactions         |    —   |    —   |    ✓   |

Additional capabilities — policies, gas sponsorship, observability, wallet actions — vary independently by chain and are not part of the tier model. Some still require a minimum tier. See [Additional capabilities](#additional-capabilities).

## Supported chains

### Tier 3: Send transactions

Privy signs, broadcasts, and tracks transactions on these chains.

<CardGroup cols={3}>
  <Card title="Ethereum" href="/wallets/using-wallets/ethereum/send-a-transaction">
    Includes EVM-compatible networks
  </Card>

  <Card title="Solana" href="/wallets/using-wallets/solana/send-a-transaction">
    Includes SVM-compatible networks
  </Card>

  <Card title="Tempo" href="/wallets/using-wallets/tempo/send-a-transaction">
    Includes Tempo mainnet and Tempo Moderato
  </Card>

  <Card title="Tron" href="/wallets/using-wallets/tron/send-a-transaction">
    TRC-20 assets including USDT
  </Card>
</CardGroup>

<Tip>
  Learn more about configuring your app for different
  [EVM](/basics/react/advanced/configuring-evm-networks) and
  [Solana](/basics/react/advanced/configuring-solana-networks) networks.
</Tip>

### Tier 2: Sign transactions

Privy decodes and signs transactions.

<CardGroup cols={3}>
  <Card title="Sui" href="/wallets/using-wallets/other-chains/sui">
    Move-based layer 1
  </Card>

  <Card title="Stellar" href="/recipes/tier-2-wallet-integration#stellar">
    Payment-focused layer 1
  </Card>

  <Card title="Aptos" href="/recipes/tier-2-wallet-integration#aptos">
    Move-based layer 1
  </Card>

  <Card title="Near" href="/recipes/tier-2-wallet-integration#near">
    Sharded layer 1
  </Card>
</CardGroup>

### Tier 1: Sign

Privy creates wallets and produces cryptographic signatures.

<CardGroup cols={3}>
  <Card title="Bitcoin" href="/wallets/using-wallets/bitcoin/sign-transaction-inputs">
    Segwit and taproot transaction inputs
  </Card>

  <Card title="Cosmos" href="/recipes/tier-1-wallet-integration#cosmos">
    Cosmos SDK app chains
  </Card>

  <Card title="Ton" href="/recipes/tier-1-wallet-integration#ton">
    The Open Network
  </Card>

  <Card title="Starknet" href="/recipes/tier-1-wallet-integration#starknet">
    Starknet curve wallets
  </Card>

  <Card title="Pearl" href="/wallets/using-wallets/other-chains">
    HD-derived Pearl wallets
  </Card>

  <Card title="Other Ed25519 and secp256k1 chains" href="/wallets/using-wallets/other-chains">
    Any chain on a supported curve
  </Card>
</CardGroup>

### Specialized integrations

Some managed integrations do not map directly to the transaction lifecycle represented by the tier model.

<CardGroup cols={3}>
  <Card title="Spark" href="/recipes/spark-btc-guide">
    Managed Spark transfers, Lightning payments, and Bitcoin deposits
  </Card>
</CardGroup>

## Tier definitions

### Tier 3: Send transactions

* **Transaction construction** — Privy constructs supported transactions from higher-level inputs and resolves chain-dependent fields when required.
* **Managed submission** — Privy signs, broadcasts, and tracks transactions, with [transaction-status webhooks](/wallets/gas-and-asset-management/assets/transaction-event-webhooks) for lifecycle updates.

Tier 3 is the minimum threshold for anything that acts at broadcast time, such as fee payment, bundler routing, batching, and lifecycle tracking.

### Tier 2: Sign transactions

* **Transaction-aware signing** — Privy decodes and validates the transaction before signing.

Tier 2 is the minimum threshold for transaction-level policy controls, because Privy must decode a transaction before it can evaluate conditions on the transaction's contents.

### Tier 1: Sign

Privy provides these capabilities across supported chains, through the signing interface that each chain exposes.

* **Wallet creation** — generate a new keypair for a supported curve (secp256k1, Ed25519, or Starknet)
* **Private key export** — retrieve the raw private key for non-custodial use or migration
* **HD seed export** — export the seed phrase for HD-derived wallets (Ethereum, Solana, Bitcoin Taproot, and Pearl only)
* **Import** — bring an existing [private key](/wallets/wallets/import-a-wallet/private-key) or [HD seed](/wallets/wallets/import-a-wallet/hd-wallets) under Privy management, on a narrower set of chains than export
* **Low-level signing** — produce signatures appropriate to the wallet type

## Additional capabilities

A capability that depends on Privy decoding, building, or submitting a transaction is unavailable below the tier that provides it. Reaching that tier does not by itself make the capability available.

| Feature                                            | Description                                                                                                                                                                                                                                    |    Minimum tier    |
| -------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | :----------------: |
| Gas sponsorship, smart wallets, and batching       | Chain-dependent managed transaction features. See [gas management](/wallets/gas-and-asset-management/gas/overview) and [EVM smart wallets](/wallets/using-wallets/evm-smart-wallets/overview).                                                 |       Tier 3       |
| Wallet actions                                     | Managed [transfer, swap, and earn flows](/wallets/actions/overview). Cross-chain availability depends on provider coverage and liquidity; see the dynamically maintained [supported routes](/wallets/actions/swap/overview#cross-chain-swaps). |       Tier 3       |
| Transaction policies                               | [Controls](/controls/policies/overview) based on decoded transaction fields. Available conditions vary by chain and method.                                                                                                                    |       Tier 2       |
| Balances, history, and deposit/withdrawal webhooks | [Coverage](/wallets/gas-and-asset-management/assets/overview) varies by network and event.                                                                                                                                                     |       Varies       |
| Fiat funding                                       | [Provider-, region-, and configuration-dependent](/financial-flows/payments).                                                                                                                                                                  | Outside tier model |

<Info>
  Privy is continuously adding new chains and expanding capabilities on existing chains. Contact
  [support@privy.io](mailto:support@privy.io) with questions about current coverage or to request
  that Privy prioritize a chain or capability.
</Info>