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Tempo is a general-purpose blockchain optimized for payments. Tempo is designed to be a low-cost, high-throughput blockchain with user and developer features targeting modern payment systems including first-class stablecoin support. More on Tempo here.

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Address derivation

Turnkey supports Tempo address derivation with ADDRESS_TYPE_ETHEREUM.

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Transaction construction and signing

Turnkey supports both transaction types on Tempo:
  • Ethereum legacy transactions with full parsing & policy support
  • Tempo transactions with full parsing & policy support via the tempo.tx namespace
Tempo transactions natively support batched calls — multiple calls can be sent atomically in a single transaction. See the policy language reference and Tempo policy examples for details on governing Tempo transactions.

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Examples

We have an example repository that demonstrates how to construct and sign Tempo transactions:
  • examples/with-tempo: demonstrates single and batched (multicall) transaction construction and broadcast on Tempo, including fee sponsorship.
Legacy Ethereum transactions on Tempo can be utilized on Turnkey with viem and ethers.

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Tempo network support

Turnkey supports:
  • Tempo Mainnet
  • Tempo Testnet (Moderato)

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Key features for Tempo

  • Full policy engine support: Govern Tempo transactions with granular policies using the tempo.tx namespace — control call destinations, function selectors, gas limits, fee tokens, and more
  • Batch call support: Write policies over Tempo’s native batch calls using tempo.tx.calls with list quantifiers (all, any, count)
  • Raw calldata inspection: Inspect ABI-encoded arguments in call input data using slicing (e.g. tempo.tx.calls[0].input[34..74])
  • Out of the box Legacy EVM TX support: Turnkey fully supports the legacy transaction type on Tempo
  • Native gas sponsorship: Our example repository provides a reference implementation for building transactions with Tempo’s native gas sponsorship

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Benefits of using Turnkey with Tempo

  • Secure Key Management: Private keys are securely stored in Turnkey’s infrastructure
  • Policy Controls: Apply custom policies to authorize transactions based on criteria including call destinations, function selectors, and calldata contents
  • Developer-Friendly: Integrate with existing Tempo development workflows
  • Multi-environment Support: Use the same code across testnet and mainnet environments
If you’re building on Tempo and need assistance with your Turnkey integration, feel free to contact us at hello@turnkey.com, on X, or on Slack.