Changelog

Notable user-facing changes per release.

v0.1.0

The first documented release. merido is a local-first, OpenAI-compatible AI gateway in Rust that ships as a single binary serving the API, the dashboard, a landing page, and these docs on one port.

Gateway & request path

• OpenAI-compatible data plane: /v1/chat/completions, /v1/messages (Anthropic), /v1/responses, /v1/embeddings, /v1/images/generations, /v1/audio/*, /v1/models, and more — all translated through one canonical representation.
• Routing to 40+ upstream providers via API key or OAuth, with encryption at rest.

Routing & reliability

• Virtual models with failover, load_balance, weighted, cost_optimized, and latency_based strategies.
• Cost/latency/health-aware target selection, fallback across accounts → targets → tiers, and a circuit breaker with cooldowns.

Token saving & caching

• Automatic tool_result compression filters and opt-in Caveman output-compression mode.
• A savings ledger (/api/savings, merido gain).
• Exact request dedup and an opt-in semantic cache with a precision guard and revalidation sampling.

The Token-Optimization Advisor

• Usage analysis with recommendations (merido advise / discover, /api/advisor).
• An apply engine with a probation window and auto-rollback.

Deploy & operate

• Profiles: local (SQLite, single-user) and cloud (Postgres, multi-tenant).
• Docker and Fly.io deployment; production hardening via a dashboard password hash and required API keys.
• Opt-in self-serve multi-tenancy and Redis-backed high availability.
• merido migrate to move data between SQLite and Postgres; Helicone import.