um-dsh-websearch

When a web search backend goes down, runs out of quota, or rejects a request, a single-provider setup in DeepSeek Harness leaves you without any search at all. um-dsh-websearch mounts both Exa and Parallel under one umbrella provider, turning primary-to-failover switching from a code change into a one-line config, so a single point of failure no longer stalls your connected experience.

Inside each backend, two channels work as mutual backups: authenticated REST and keyless anonymous MCP. If one channel hits a 401, 429, or 5xx, the other takes over automatically; cross-backend fallback works the same way, so a total rejection on the primary seamlessly routes to the secondary. In keyless mode, public MCP endpoints return results without any API key, making quick validation and lightweight deployment painless. The global toggle ships disabled, flips on with one click in settings (hot, no restart), and every field change takes effect on the next search.

If you want a redundancy layer for DeepSeek web search—multi-backend failover, zero-key lightweight access, or a bilingual settings card where priority and fallback policy are visible at a glance—this plugin consolidates scattered configuration into a single card. Install it and it takes over the default search; uninstall it and the original backend is restored, with no manual profile edits required.