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SEDA: programmable oracle pipelines for external data

SEDA provides programmable data retrieval and computation for applications and smart contracts, with Oracle Programs, private-source connectors and distinct execution paths.

3.5/ 5Editorial ratingEditorial assessment
Read SEDA documentationdocs.seda.xyz
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Introduction to the program and data-proxy components.

What is SEDA?

An Oracle Program defines deterministic retrieval and transformation logic for an external-data pipeline. Developers build the program to WASM, test locally, deploy it to the SEDA network and retain its program ID. Data Proxies provide a dedicated connector for private or proprietary APIs, keeping provider-key access in that layer rather than distributing the key to every caller. Private-source credentials and usage rights are still required.

Deployment and execution are separate tasks. Fast executes an existing program through API-oriented delivery; it does not upload a new one. On-chain consumption uses Core and a supported prover deployment, with a documented Hardhat path for EVM integration. The documentation covers API/WebSocket interfaces, WASM and smart contracts. For a prediction-market data pipeline, define the source, timeout and resolution logic explicitly and check prover availability on the target chain.

Who it is for

  • Builders designing pipelines for external event data.
  • Developers connecting private or licensed data providers.
  • Agent teams integrating structured oracle results into applications.

Features and coverage

  • Oracle Programs

    Package deterministic data retrieval and transformation logic.

  • Source connections

    Connect public or private data feeds, APIs and documented source paths.

  • Data Proxies

    Keep API-key access in a dedicated connector for the private source.

  • Local build and testing

    Compile the starter program to WASM and test it before deployment.

  • Program deployment

    Upload the program to the SEDA network and obtain its ID.

  • Fast execution

    Execute an already deployed program through API-oriented delivery.

  • On-chain results

    Use Core and a prover deployment supported on the target chain.

  • EVM integration

    Follow the documented Hardhat integration route.

  • Agent runbooks

    Use task-specific fetching, deployment and execution guides.

Workflows with SEDA

Build an outcome-data pipeline

Define the source and output schema, test edge cases locally and deploy the Oracle Program.

Connect a licensed API

Create a proxy route and retain the provider credential in the documented proxy layer, with the required data usage entitlement.

Consume the result

Choose Fast for application delivery, or verify target-chain prover support before on-chain consumption.

Pricing and total cost

The reviewed documentation does not give a universal flat subscription for oracle integration. Costs depend on the execution path, network usage and any separate data-provider subscription.

Getting started

Before you start: Fast does not deploy a new program.

  1. Choose the source type you need.
  2. Read the relevant developer or agent module.
  3. Build and locally test a minimal Oracle Program.
  4. Configure a proxy if private-source access requires one.
  5. Deploy the program and keep its ID.
  6. Choose Fast or the on-chain result-consumption path.

Fast executes existing programs; deployment is a separate step.

Read SEDA agent modules

Useful links

    What to check

    • Fast does not deploy a new program.
    • Private APIs still require their own credentials and usage rights.
    • On-chain integration depends on prover availability for the target chain.
    • Prediction-market use needs explicit source, timeout and resolution logic.
    • Network and upstream-data costs are specific to the integration.

    A closer look

    Ratings & reviews

    Editorial rating
    3.5/ 5
    0 user reviews
    PredictionToolkit editorial

    Our take on SEDA

    Programmable retrieval, dedicated proxies and deterministic processing offer useful oracle components. Deployment differs from execution, and network and upstream-data costs depend on the chosen integration.

    Based on documented features, setup and access terms. How we rate

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    The main score switches to user ratings after 5 published reviews.

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    Frequently asked questions about SEDA

    What does a Data Proxy do?

    It connects a private or proprietary source using that provider’s access key.

    Can Fast upload a program?

    No. Deploy the program separately before executing it through Fast.

    Can I test before deployment?

    Yes. The runbooks describe local build and test steps.

    Is SEDA a retail trading terminal?

    No. It is developer infrastructure for data and oracle workflows.