o3 SearchSAFE
MCP server for OpenAI o3 web search
Overview
From the repository's own README, as read at the audited commit. Badges and raw HTML are left out.
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[](https://mseep.ai/app/810f04ea-e685-4840-ae20-6a70deb7407a)
MCP server that enables the use of OpenAI's high-end models and their powerful web search capabilities. By registering it with any AI coding agent, the agent can autonomously consult with OpenAI models to solve complex problems.
Use Cases
(Although called o3 to match the MCP name, you can specify gpt-5 or o4-mini via env for the model to use)
🐛 When you're stuck debugging
o3's web search can scan a wide range of sources, including GitHub issues and Stack Overflow, significantly increasing the chances of resolving niche problems. Example prompts:
> I'm getting the following error on startup, please fix it. If it's too difficult, ask o3. > [Paste error message here]
> The WebSocket connection isn't working. Please debug it. If you don't know how, ask o3.
📚 When you want to reference the latest library information
You can get answers from the powerful web search even when there's no well-organized documentation. Example prompts:
> I want to upgrade this library to v2. Proceed while consulting with o3.
> I was told this option for this library doesn't exist. It might have been removed. Ask o3 what to specify instead and replace it.
🧩 When tackling complex tasks
In addition to sear
e689c3114063OBSERVED · 2026-10-05Connect
Built from this server's own package name, version and transport as found in its source — not copied from anyone's documentation, so it cannot drift against a page we do not control. Replace the environment placeholders with a token scoped to the least it needs.
claude mcp add o3-search-mcp --env OPENAI_API_KEY=${OPENAI_API_KEY} -- npx -y [email protected]{
"mcpServers": {
"o3-search-mcp": {
"command": "npx",
"args": [
"-y",
"[email protected]"
],
"env": {
"OPENAI_API_KEY": "${OPENAI_API_KEY}"
}
}
}
}Exposed tools (1)
1 read · 0 write · 0 destructive.
| Tool | Risk | Description |
|---|---|---|
o3-search | read | An AI agent with advanced web search capabilities. Useful for finding the latest information, troubleshooting errors, and discussing ideas or design challenges. Supports natural language queries. |
Trust audit
SAFEgrade B · trust 89/100 Nothing in the source contradicts what it says it does. Grade A is reserved for packages that have also passed the behavioural sandbox.
| Layer | What it checks | Result |
|---|---|---|
| L0 | Provenance & inventory | PASS |
| L1 | Static analysis of the code | PASS |
| L2 | Instruction surface (what it tells the agent) | PASS |
| L3 | Class-specific surface | PASS |
| L4 | Behavioural (sandbox) | SKIPPED |
What the source does
- Filesystem
- none-observed
- Network
- none-observed
- Shell
- none-observed
- Dependencies
- not all pinned
- Secrets in source
- none-found
Findings (1)
@modelcontextprotocol/sdk, openai, zod, @types/node, typescript
Gates applied: no_behavioural_pass.
e689c3114063full audit observations/trust-audit/mcp-server/yoshiko-pg__o3-search.json · Report an issue / request a re-scanAudit history
Every audit this server has had. A grade with a past is a grade somebody is still checking.
| Date | Source | Verdict | Grade | Score | Change |
|---|---|---|---|---|---|
| 2026-10-05 | e689c3114063 | SAFE | B | 89 | first audit |
Questions
What is the o3 Search MCP server?
MCP server for OpenAI o3 web search
What tools does o3 Search expose?
1 in total: 1 read-only, 0 that write, and 0 that can delete or overwrite. Every one is listed on this page with its risk.
Is o3 Search safe to connect to an agent?
The audit found nothing in the source that contradicts what it says it does, and graded it B (89/100). Grade A is held back for packages that have also passed a sandboxed behavioural run, which is why a clean server reads B.
What credentials does o3 Search need?
It reads OPENAI_API_KEY from the environment. Give it a token scoped to the least it needs — an agent that can be talked into calling a tool can be talked into calling it with your credentials.
How does o3 Search run?
It speaks stdio, so it runs as a local process your client starts. It is published on npm as o3-search-mcp at 0.0.9.
How current is this page?
The grade is for one exact copy of the source (e689c3114063), read on 2026-10-05. The repository is watched and re-audited when it changes.