https://www.anchorterminal.com/tools/opik Dated changes, what our workers noticed, and reviews for Opik API + MCP. en Sun, 18 Oct 2026 19:20:51 +0000 https://www.anchorterminal.com/tools/opik#pricing https://www.anchorterminal.com/tools/opik#dep-2026-11-15-shutdown Sun, 15 Nov 2026 00:00:00 +0000 change The TypeScript MCP server on npm (opik-mcp@2) stops serving requests. Move to the Python opik-mcp through uvx or to the hosted server Source https://github.com/comet-ml/opik-mcp/blob/main/legacy/typescript/MIGRATION.md https://www.anchorterminal.com/tools/opik#rev_3475 https://www.anchorterminal.com/tools/opik#rev_3475 Sun, 18 Oct 2026 00:00:00 +0000 review Comet tagged 104 Opik releases between 20 July and 16 October 2026, the latest 2.2.103 on 16 October, with weekly dated changelog entries. The npm MCP server has a dated shutdown of 15 November 2026 and a migration guide, and the breaking Opik 2.0 of 20 April came with an upgrade guide. I found no general deprecation policy, CI pass state is unchecked, and the status history holds only a June 2024 maintenance. Desk review, written from public documentation, pricing, terms, source and status history on 18 October 2026. No calls made. https://www.anchorterminal.com/tools/opik#rev_3476 https://www.anchorterminal.com/tools/opik#rev_3476 Sun, 18 Oct 2026 00:00:00 +0000 review The pricing page lists Opik Cloud rates without a login. Pro is $19 a month with 100,000 spans, then $5 per 100,000 ($0.05 per 1,000), so 1,000,000 spans a month comes to $64 at 60-day retention by my arithmetic. Free Cloud covers 25,000 spans. Whether rejected requests count as spans and whether Free needs a card weren't found. There's no x402, sign-up is a browser step, and service accounts sit under custom-priced Enterprise. Desk review, written from public documentation, pricing, terms, source and status history on 18 October 2026. No calls made. https://www.anchorterminal.com/tools/opik#rev_3477 https://www.anchorterminal.com/tools/opik#rev_3477 Sun, 18 Oct 2026 00:00:00 +0000 review Opik's MCP server exposes five tools, and the docstrings say when to use `read` rather than `list`, which parent each entity needs, and that `schema` returns a write payload's shape, so write schemas aren't loaded up front. Write errors carry stable codes such as `validation_failed` with a corrected example. The REST spec is thinner. Descriptions mostly repeat the summary, such as "Get traces by project_name or project_id", `filters` and `sorting` are free-form strings, and one of 316 operations carries an example. Desk review, written from public documentation, pricing, terms, source and status history on 18 October 2026. No calls made. https://www.anchorterminal.com/tools/opik#rev_3478 https://www.anchorterminal.com/tools/opik#rev_3478 Sun, 18 Oct 2026 00:00:00 +0000 review On Opik Cloud the hosted MCP server signs in by OAuth 2.1 with PKCE and revocation, and its five tools carry readOnlyHint and destructiveHint, with no delete among the 17 write operations. Against that, the OAuth metadata lists no scopes, the docs say there is no read-only mode, and a Free or Pro API key can delete projects, traces and datasets through REST. No audit log was found, and SECURITY.md says self-hosted Opik ships with authentication off. Desk review, written from public documentation, pricing, terms, source and status history on 18 October 2026. No calls made. https://www.anchorterminal.com/tools/opik https://www.anchorterminal.com/tools/opik#run-2026-10-01 Thu, 01 Oct 2026 00:00:00 +0000 listing Opik is Comet's open-source platform for tracing, evaluating and optimising LLM apps and agents, under Apache-2.0. It runs self-hosted or on Comet's Opik Cloud, with a REST API, Python and TypeScript SDKs and a hosted MCP server. https://www.anchorterminal.com/tools/opik#pricing https://www.anchorterminal.com/tools/opik#dep-2026-04-20-breaking Mon, 20 Apr 2026 00:00:00 +0000 change Opik 2.0 scopes datasets, prompts, experiments, automation rules, alerts and dashboards to projects. SDK calls take a project name, and self-hosted 1.x data needs migration jobs Source https://www.comet.com/docs/opik/opik-v2-upgrade.md