# MCP Server 1.0: now backed by the Agent API

By Steven Van · 2026-07-01

The Perplexity MCP Server v1.0.0 moves its model-backed tools from the legacy Sonar models to Agent API presets: perplexity\_ask uses the fast preset…

The [Perplexity](<https://creatorstoolbox.com/tools/perplexity>) MCP Server has moved to version 1.0, switching its model-backed tools from the legacy Sonar models to Agent API presets. Tool names and response shapes are unchanged, and all three tools are faster and cheaper on average than their Sonar predecessors.

- **perplexity\_ask** now uses the fast preset, **perplexity\_reason** uses medium, and **perplexity\_research** uses high.

- Long-running research now streams progress to MCP clients that request it, and cancelling an MCP request cancels the underlying run.

- The strip\_thinking and reasoning\_effort parameters have been removed from the tool schemas, since the Agent API emits no think tags and presets manage reasoning effort themselves. Clients that still send these parameters are ignored gracefully.

Details are in the [changelog](<https://docs.perplexity.ai/changelog#july-2026>).

[![](<https://perplexity.mintlify.app/mintlify-assets/_next/image?url=%2F_mintlify%2Fapi%2Fog%3Fdivision%3DResources%26title%3DChangelog%26theme%3D820be4ec62923f2d29093b0d&w=1200&q=100>)](<https://docs.perplexity.ai/changelog#july-2026>)

![Perplexity](<https://www.google.com/s2/favicons?domain=perplexity.ai&sz=128>)

Perplexity

AI-powered answer engine — ask anything and get cited, real-time answers from across the web.

[View Perplexity →](<https://creatorstoolbox.com/tools/perplexity>)

Sources

[Original source](<https://docs.perplexity.ai/changelog#july-2026>)

[Read MCP Server 1.0: now backed by the Agent API on Creators Toolbox](<https://creatorstoolbox.com/blog/perplexity-mcp-server-1-0-now-backed-by-the-agent-api>)

---
Canonical source: https://creatorstoolbox.com/blog/perplexity-mcp-server-1-0-now-backed-by-the-agent-api