StreamingFast October 2025 Update

Research & Development Core Team Updates
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StreamingFast October 2025 Update

Hey everyone, I’m excited to share this month’s Firehose and Substreams updates!

October was another strong month of progress across The Graph’s infrastructure stack — from new mainnet launches to developer experience upgrades that make Substreams even easier to use. On the product side, we introduced Substreams RPC v3, which now accepts .spkg packages directly, simplifying deployments and integrations. SQL Sink gained nested message support, unlocking more complex schema mappings for downstream analytics. And Injective EVM Mainnet is now live, marking another expansion for Firehose and Substreams coverage across ecosystems.

These milestones further our goal of improving data accessibility and developer workflows while expanding The Graph’s reach across chains and use cases.

Looking back

  • SQL Sink Nested Message Support – Added support for one-level-deep nested messages, enabling richer schema definitions in downstream databases.

  • Substreams RPC v3 – Introduced support for uploading full .spkg Substreams packages directly, streamlining deployment and simplifying developer workflows.

  • Injective EVM Mainnet Launch – Released full Firehose and Substreams support for Injective EVM Mainnet, expanding The Graph’s multi-chain reach.

Looking ahead

As we head into the final stretch of the year, here’s what’s next on the roadmap:

  • NEAR Support in substreams init – Expanding Substreams initialization to natively support NEAR projects, giving NEAR developers a path to get their data streaming in minutes.

  • Foundational Store Improvements – Polishing performance, reliability, and documentation for Substreams Foundational Stores. Blog post can be found here.

  • Store Size Forecasting – Delivering better visibility and reporting tools for forecasting Substreams Store size and resource needs.

  • Flashblocks Support – Work has begun toward integrating Flashblocks support, with a target release in Q1 2026.

  • Token API Plans – Rolling out new pricing and plan options for the Token API on thegraph.market.

  • Worldchain Support – Beginning work to add Firehose and Substreams coverage for Worldchain.

  • Unified Substreams Sink in CLI – Integrating the Substreams Sink directly into the CLI to provide a unified developer experience.