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Weekly updates to the Dispatch network and tooling.

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Week of April 20, 2026

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New features

  • Batch JSON-RPC support. Dispatch now accepts standard JSON-RPC batch requests, letting you send multiple calls in a single HTTP round-trip for lower latency and fewer connections.
  • dispatch-proxy: a drop-in local JSON-RPC server. Run a local proxy that speaks plain JSON-RPC and transparently routes requests through the decentralised network. Point any existing wallet, library, or tool at http://localhost:<port> and use Dispatch without integrating an SDK. See the Consumers guide.
  • Auto-generated consumer keys for dispatch-proxy. On first run, the proxy creates a consumer key and prints a direct dashboard funding link, so you can go from install to a funded escrow in a couple of clicks.
  • On-chain escrow pre-check. The proxy now verifies your GRT escrow balance before forwarding requests and returns clear 402 Payment Required responses with funding hints when you’re underfunded — no more silent failures. See Payments.
  • Per-consumer credit limit. A 0.1 GRT unconfirmed-spend cap is now enforced per consumer, protecting providers from freeloaders while still allowing trial usage.
  • Method tracking in TAP receipts and a receipt feed API. Receipts now record which RPC method was paid for, and a new feed endpoint lets providers and consumers stream their receipt history for accounting and analytics.
  • Lightweight /block/{chain_id} probe endpoint. The gateway uses this to health-check providers without consuming a TAP receipt, keeping discovery fast and free.
  • Versioned Docker images. Releases now publish tagged Docker images so you can pin to a specific Dispatch version in production deployments.

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Updates

  • X-Consumer-Address is now required on every gateway request. All requests to the public gateway must include the X-Consumer-Address header identifying the consumer’s Ethereum address. This enables per-consumer billing and rate-limiting, and replaces the previous unauthenticated free-query path. See the Consumers guide.
  • Gateway prefers static endpoint overrides. When a configured static endpoint matches a discovered provider address, the gateway uses the override — making local and staging setups predictable.
  • Service and gateway ports bind to localhost by default. Default deployments no longer expose ports on all interfaces, reducing the chance of accidental public exposure.

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Bug fixes

  • Corrected EIP-712 domain name to GraphTallyCollector. Receipt signatures now match the on-chain verifier; signatures generated against the previous (incorrect) domain are no longer needed.
  • Fixed EIP-712 domain and verifying contract in example configs. The shipped example configurations now sign and verify against the correct on-chain contract out of the box.
  • Consumer SDK now appends /rpc/{chainId} to provider endpoints. Direct SDK usage routes to the right path automatically; no manual URL construction required.
  • Proxy returns clearer 402 funding hints when the consumer’s escrow is empty or below the active credit limit.