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Parallel

Parallel provides hosted MCP tools for web search and URL fetching.

Add the parallel_search capability to an agent or harness. It works for free without any connection.

To use a Parallel API key, add a Parallel connection in Settings > Connections, then configure the capability with auth: "connection".

To use Parallel’s OAuth-compatible MCP endpoint, configure the capability with endpoint: "oauth". This mode requires the Parallel connection because the endpoint rejects anonymous requests.

ToolPurpose
mcp_parallel__web_searchSearch the web and return ranked URLs with excerpts.
mcp_parallel__web_fetchFetch and extract focused content from known URLs.

Agents should reuse one stable session_id across Parallel tool calls in the same conversation.

Operators can separately enable Parallel’s paid search, extraction, and task tools with FEATURE_MACHINE_PAYMENTS=true. This deployment flag is off by default in every environment. When it is off, Everruns does not expose Settings > Payments or the payment account, policy, and attempt APIs, so the deployment does not ask organization owners to entrust wallet keys for a capability that cannot spend.