Openperplex for AI agents
Openperplex provides web search and content analysis built for AI applications, returning structured answers and page content. Developers use it to give agents up-to-date web knowledge. Connect it once through Arc0, and your agent, or Claude, ChatGPT and Cursor, can use it through one MCP endpoint, limited to what each user approved.
What agents do in Openperplex.
Run a search query for an answer
Ask a question and get a synthesized answer sourced from current web search results.
Get a page as clean markdown
Fetch a webpage's content converted to markdown for easier summarization.
Capture a website screenshot
Grab a screenshot of a page to accompany a research summary or citation.
8 Openperplex actions, graded by risk.
Every Openperplex action is tagged read, write or destructive, so one policy covers the whole app and new actions inherit the right default.
read
6Look things up. Allowed by default.
- openperplex.search_streamSearch Stream
- openperplex.query_from_urlQuery from URL
- openperplex.get_website_textGet Website Text
- openperplex.get_website_markdownGet Website Markdown
- openperplex.get_website_screenshotGet Website Screenshot
- openperplex.searchSearch Documents
write
2Create and change things. Allow, or ask the user first.
- openperplex.custom_searchCustom Search
- openperplex.custom_search_streamCustom Search Stream
destructive
0Delete, cancel or archive. Ask first, or deny outright.
- No destructive actions.
Openperplex in three steps.
- 01Your users connect OpenperplexThey add their Openperplex api key on Arc0 Connect, under your brand. It goes straight into the vault.
- 02You set the rulesReads run, and writes like “custom Search” can wait for the user to approve.
- 03Any agent can actYour agent calls Openperplex through the Arc0 SDK or MCP, and so can Claude, ChatGPT and Cursor. Every call lands on the audit log.
await arc0.policies.set('openperplex', { read: 'allow', write: 'ask', // custom_search destructive: 'deny', }) # Claude Code: the same connection, one URL $ claude mcp add --transport http arc0 \ https://mcp.arc0.ai/u/u_8f2
How Openperplex connects.
Users add their Openperplex api key on Arc0 Connect. It is encrypted in the vault, never shown to the model, and each user can rotate or revoke it at any time.
The same Openperplex connection serves your agent over MCP and your own backend over REST and the proxy, so a user connects once. How Arc0 handles credentials →
- AUTH
- API key
- CREDENTIALS
- Per-tenant encrypted vault
- MODEL SEES
- Results only, never credentials
- AUDIT LOG
- Every call, on every plan
Use Openperplex from any agent.
Openperplex and Arc0, answered.
Can I use Openperplex with Claude, ChatGPT or Cursor?
Yes. Connect Openperplex to Arc0 once, then add your Arc0 MCP URL to Claude, ChatGPT, Cursor, Claude Code or any other remote-MCP client. Each assistant only gets the Openperplex actions you allow.
How do users connect Openperplex?
Users add their Openperplex api key on Arc0 Connect. It is encrypted in the vault, never shown to the model, and each user can rotate or revoke it at any time.
Which Openperplex actions can my agent take?
8 in total: 6 read, 2 write and 0 destructive, such as “custom Search”. Your policies decide which of them each agent may call.
Can I make my agent read-only in Openperplex?
Yes. Allow read actions and deny writes in the Openperplex policy. Your agent can still look things up, and any write it attempts is blocked and logged.
Can my own backend call Openperplex too?
Yes. The same Openperplex connection is available over REST and through the Arc0 proxy, so your product and your agent share one connection per user.
Plug Openperplex into your agent.
Your users connect Openperplex once, under your brand. Your agent gets 8 actions behind your policies, with every call on the record.
Free to build · MCP + REST · Audit log on every plan