Jina AIBLOCK
Official Jina AI Remote MCP Server
Overview
From the repository's own README, as read at the audited commit. Badges and raw HTML are left out.
A remote Model Context Protocol (MCP) server for the Jina Reader, Search, Embeddings and Reranker APIs:
Usage
[!WARNING] Some clients do not support env variable, so you may need to replace${JINA_API_KEY}below to a hardcoded real API keyjina_xxx.
For client that supports remote MCP server:
{
"mcpServers": {
"jina-mcp-server": {
"url": "https://mcp.jina.ai/v1",
"headers": {
"Authorization": "Bearer ${JINA_API_KEY}" // optional
}
}
}
}For Claude Code:
claude mcp add -s user --transport http jina https://mcp.jina.ai/v1 \
--header "Authorization: Bearer ${JINA_API_KEY}"For OpenAI Codex: find ~/.codex/config.toml and add the following:
[mcp_servers.jina-mcp-server]
command = "npx"
args = [
"-y",
"mcp-remote",
"https://mcp.jina.ai/v1",
"--header",
"Authorization: Bearer ${JINA_API_KEY}"]For client that does not support remote MCP server yet, you need `mcp-remote` a local proxy to connect to the remote MCP server.
{
"mcpServers": {
"jina-mcp-server": {
"command": "npx",
"args": [
"mcp-remote",
"https://mcp.jina.ai/v1",
"--header",
"Authorization: Bearer ${JINA_API_KEY}"
]
}
}
}Available tools
13e1725e225dOBSERVED · 2026-09-27Connect
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.
claude mcp add jina-mcp -- npx -y [email protected]
{
"mcpServers": {
"jina-mcp": {
"command": "npx",
"args": [
"-y",
"[email protected]"
]
}
}
}Exposed tools (12)
12 read · 0 write · 0 destructive.
| Tool | Risk | Description |
|---|---|---|
capture_screenshot_url | read | Screenshot a page as base64 JPEG. Use when the page must be seen rather than read. |
deduplicate_strings | read | Select the top-k semantically distinct strings from a list, dropping near-duplicates. |
extract_pdf | read | Extract figures, tables and equations from a PDF as images, by arXiv id or URL. |
guess_datetime_url | read | Guess when a page was published or last updated, with a confidence score. Checks HTTP headers, metadata, Schema.org, visible dates, feeds and sitemaps. |
primer | read | Current time, user location and network environment for the session. Use before answering anything time- or location-dependent. |
read_url | read | Fetch a URL (page or PDF) as clean markdown. Pass |
search_arxiv | read | Search arXiv preprints (physics, maths, CS, quantitative biology and finance). |
search_images | read | Search the web for images. Returns base64 JPEGs by default. |
search_jina_blog | read | Search Jina AI |
search_ssrn | read | Search SSRN working papers (social science, economics, law, finance, management). |
search_web | read | Search the web. Returns titles, URLs and search-engine snippets. |
sort_by_relevance | read | Rerank documents by relevance to a query, using Jina Reranker. |
Trust audit
BLOCKgrade D · trust 69/100 Do not install this without reading the findings. The audit found something that could harm you or your machine.
| Layer | What it checks | Result |
|---|---|---|
| L0 | Provenance & inventory | PASS |
| L1 | Static analysis of the code | FAIL |
| 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
- declared (5 observation(s))
- Shell
- declared (2 observation(s))
- Dependencies
- not all pinned
- Secrets in source
- none-found
Findings (6)
exec(input?: (string | URLPatternInit), baseURL?: string): URLPatternResult | null;
exec(query: string): Promise<D1ExecResult>;
atob(data: string): string;
declare function atob(data: string): string;
@modelcontextprotocol/sdk, agents, yaml, zod, @biomejs/biome, @types/node, wrangler
- **Inline code loses tokens.** `curl -fsSL https://bun.sh/install | bash` came back as `curl -fsSL | bash`. Never run a command copied out of a passage without checking the source.
Gates applied: no_behavioural_pass.
13e1725e225dfull audit observations/trust-audit/mcp-server/jina-ai__jina-ai-4.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 |
|---|---|---|---|---|---|
| 2026-09-27 | 13e1725e225d | BLOCK | D | 69 | first audit |
Questions
What is the Jina AI MCP server?
Official Jina AI Remote MCP Server
What tools does Jina AI expose?
12 in total: 12 read-only, 0 that write, and 0 that can delete or overwrite. Every one is listed on this page with its risk.
Is Jina AI safe to connect to an agent?
No — not without reading the findings first. The audit graded it D (69/100) and found 2 critical or high issues in the source. Each one is listed on this page with the file and line it is on.
What credentials does Jina AI need?
No credential environment variables were found in its source, so it appears to need none.
How current is this page?
The grade is for one exact copy of the source (13e1725e225d), read on 2026-09-27. The repository is watched and re-audited when it changes.