Pistachio v0.19: Direct Chain Reads, Canary Testing, and Error Attribution

Pistachio v0.19. Pistachio now reads all data directly from Base chain contracts, no longer depends on Cashew, and includes canary testing, load testing, model blacklists, signed capacity verification, RPC setup for desktop users, and clear error attribution.

Pistachio is an inference client for the Morpheus decentralized AI network. It stakes MOR tokens on Base, opens sessions directly with providers, routes inference, and exposes an OpenAI-compatible API on localhost.

RPC setup for desktop users

The desktop app now guides first-time users through RPC configuration in the browser. Previously, if you installed the desktop app without a Base RPC endpoint, the server refused to start and you hit a dead 'connection failed' screen with no way forward.

Now Pistachio starts in a setup mode: the UI loads, shows a clean RPC configuration screen with Alchemy setup instructions, a test button, and a save-and-restart flow. No terminal commands needed. This was the number one blocker for new desktop users.

Pistachio vs Provider errors

Error messages in chat now clearly indicate whether the error came from Pistachio (our timeout, our capacity issue) or the provider (did not respond, TCP failure, decrypt error). Previously, a generic 'request timed out' gave you no idea where the problem was.

Structured logs carry the same source field, so you can filter by Pistachio errors versus provider errors in the Activity Log. When a provider is consistently failing, you know it is the provider and not your setup.

Session close serialization

When multiple sessions expire at once, close operations now queue sequentially instead of firing in parallel. This eliminates the 'another close already running' errors that appeared when the canary test cleaned up after a sweep. Your MOR still comes back; it just happens without a wall of red error cards.

Homebrew cask rename

The Homebrew cask has been renamed from `pistachio` to `pistachio-desktop`. A new CLI-only formula (`brew install pistachio`) is available for headless servers. Both can coexist. The desktop app puts both `pistachio` and `pistachio-desktop` on your PATH.

Direct chain reads

Pistachio reads all Morpheus network data directly from Base chain contracts via RPC. Sessions, marketplace bids, provider listings, and wallet balances come straight from the smart contracts. No intermediary, no shared database, no relay.

NFT pass capacity is checked through the DRM3 Explorer, which reads from the DRM3 Pass contract on Base. That capacity response is cryptographically signed and verified (see below).

Pistachio boots from zero with a wallet key and a Base RPC endpoint. Free public RPCs are cycled automatically with failover.

Signed capacity verification

Every NFT capacity response from the DRM3 Explorer is signed with Ed25519 using the DRM3 provenance protocol. Pistachio verifies the signature against a pinned public key, validates the wallet address in the input hash, and enforces a five-minute freshness window.

If the response is unsigned, tampered with, signed by the wrong key, or stale, Pistachio rejects it and falls back to its cached value.

Canary testing

The Canary Test page fires a single inference request at every provider and model combination on the network. Per-stage latency (TCP handshake versus prompt delivery) shows which models respond and which providers are degraded.

Results feed into the Model Health dashboard.

Load testing

Built-in stress testing with configurable concurrency, request counts, and load presets. Per-request traces for every success and failure. The Model Health dashboard aggregates results across canary sweeps, load tests, and chat sessions.

Model blacklist

Persistently exclude models that do not work. Blocked models are hidden from inference, canary tests, and load tests. Managed from Settings with a per-provider view and health indicators.

Parallel session reclaim

Expired session reclaims now run concurrently. A batch of 60 sessions completes in under three seconds.

DeepSeek V4 Pro and Kimi K2.6

Two notable model additions on the Morpheus network. DeepSeek V4 Pro (reasoning and code generation, available as base and web-search variants) and Kimi K2.6 from Moonshot AI (multilingual, web search). Both available through the marketplace.

Pistachio Pass GEN 9

The DRM3 Pass NFT contract redeployed to GEN 9 on Base mainnet. Existing pass holders are auto-airdropped at each generation roll. Capacity tiers: Free (20 MOR), Bronze (+200), Silver (+1,000), Gold (+5,000), Diamond (+20,000). Claim a free pass at nft.drm3.xyz.

Install or upgrade

Desktop app users will receive an auto-update prompt on next launch. Full documentation at drm3.io/products/pistachio. Release notes and binaries at github.com/drm3labs/drm3-releases.

brew tap drm3labs/drm3 && brew install --cask pistachio-desktop

brew tap drm3labs/drm3 && brew install pistachio

curl -fsSL https://drm3.network/install.sh | sh

brew upgrade --cask pistachio-desktop