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Exa MCP Server

Exa MCP gives you real-time web searches and can extracts content from any URL. It also finds the best code examples and documentation, searches billions of GitHub repos, docs sites, and StackOverflow to give you fresh coding context.

Tools observed. Pod connected on 2026-08-31 and the server listed 2 tools directly. Verified.

Categorised under developer-tools. Published by exa.ai.

Status

Pod connected to Exa on 2026-08-31. It answered and listed its tools, responding in 412ms.

It identifies itself as exa-search-server version 3.2.1, speaking streamable-http. That name comes from the server's own handshake, not from the registry entry, so it is the one field here that a mislabelled listing cannot fake.

Claim mismatch

Registry lists get_code_context_exa; the live server exposes web_fetch_exa instead.

Tools

Pod observed 2 tools when it connected:

  • web_search_exa
  • web_fetch_exa

The registry additionally lists 1 tool that did not appear in the live handshake: get_code_context_exa.

Connect

A hosted endpoint at https://mcp.exa.ai/mcp, over streamable-http. Nothing to install.

{
  "mcpServers": {
    "exa": {
      "type": "http",
      "url": "https://mcp.exa.ai/mcp"
    }
  }
}

Known issues

89 problems reported by people outside the maintainer team. Issues filed by the project's own owners, members and collaborators are excluded — those are release checklists and internal refactors, not things that will go wrong for you. Showing 12.

Most discussed

NPX package broken on Linux - HTTP endpoint only exposes 2 tools instead of 7

Issue Description

The exa-mcp-server package has different behavior between Windows and Linux, and the HTTP endpoint is missing most tools.

Environment

Problem 1: NPX Package Fails on Linux

When trying to run the package via npx on Linux:

npx -y exa-mcp-server

Error:

npm error could not determine executable to run

The package.json defines the bin as:


[Read the thread](https://github.com/exa-labs/exa-mcp-server/issues/84) · 2025-11-10 · closed · external user · 5 comments

### Only 2 tools loaded despite specifying all 7 tools in --tools flag

## Environment
- **MCP Client**: Kiro IDE
- **OS**: Windows (win32)
- **Shell**: cmd
- **Package**: exa-mcp-server (latest via npx)
- **Installation method**: NPX with --tools flag

## Configuration

```json
{
  "mcpServers": {
    "exa": {
      "command": "npx",
      "args": [
        "-y",
        "exa-mcp-server",
        "--tools=deep_researcher_start,deep_researcher_check"
      ],
      "env": {
        "EXA_API_KEY": "***"
      },
      "disabled": false
    }
  }
}

Expected Be

Read the thread · 2025-10-23 · closed · external user · 10 comments

May I ask when Codex will be supported?

May I ask when Codex will be supported?

Read the thread · 2025-09-29 · closed · external user · 5 comments

mcp server only has two entry points now missing linkedin, deepresearch etc

Did something change at the start of the month, now even when passing the --tools parameter, we only get web_search_exa and get_code-context_exa, the company research crawling, linkedin all appear to be gone

    "exa-local": {
      "command": "npx",
      "args": [
        "-y",
        "exa-mcp-server@2.0.9",
        "--tools=get_code_context_exa,web_search_exa,company_research,crawling,linkedin_search,deep_researcher_start,deep_researcher_check"
      ],
      "env": {
        "EXA_API_K

[Read the thread](https://github.com/exa-labs/exa-mcp-server/issues/66) · 2025-09-26 · closed · external user · 21 comments

### Multiple shebang lines in .smithery/index.cjs breaks stdio transport

## Description
The npm package `exa-mcp-server` fails to run via stdio transport due to multiple shebang lines being added to the `.smithery/index.cjs` file during the build process.

## Error Message

/Users/mike/.npm/_npx/6fb594a0eac5e490/node_modules/exa-mcp-server/.smithery/index.cjs:2 #!/usr/bin/env node ^

SyntaxError: Invalid or unexpected token at wrapSafe (node:internal/modules/cjs/loader:1620:18) at Module._compile (node:internal/modules/cjs/loader:1662:20) at Object..j

Read the thread · 2025-09-26 · closed · external user · 7 comments

Most recent

Add support for MCP protocol version 2026-07-28

Hi! Are there plans to support MCP protocol version 2026-07-28 on the hosted Exa MCP endpoint?

I tested https://mcp.exa.ai/mcp by sending an initialize request with:

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "initialize",
  "params": {
    "protocolVersion": "2026-07-28",
    "capabilities": {},
    "clientInfo": {
      "name": "protocol-version-probe",
      "version": "1.0.0"
    }
  }
}

The request succeeds with HTTP 200, but the server negotiates an older version:

`

Read the thread · 2026-08-19 · open · external user · 0 comments

[Bug] MCP endpoint returns HTTP 403 for clients running on Cloudflare Workers egress

Summary

The hosted Exa MCP endpoint https://mcp.exa.ai/mcp returns 403 to requests coming from Cloudflare Workers egress IPs. The same requests return 200 from a normal residential connection, so any MCP client running on Cloudflare Workers (gateway, agent, aggregator) cannot connect to the hosted Exa MCP server. We hit it with MCP clients on a deployed Worker (@cloudflare/agents, @mcp-ts/sdk, @modelcontextprotocol/client v2): all fail with `Version negotiation failed: the server

Read the thread · 2026-08-11 · open · external user · 0 comments

shelljs@0.3.0 reachable via whoami@0.0.3 (GHSA-4rq4-32rv-6wp6, HIGH)

Two advisories resolve to shelljs@0.3.0 in the installed dependency tree of exa-mcp-server@3.4.0:

Both are fixed in shelljs@0.8.5.

exa-mcp-server@3.4.0
└─ whoami@0.0.3
   └─ shelljs@0.3.0

whoami@0.0.3 was last published in 2014 and constrains

Read the thread · 2026-08-04 · open · external user · 0 comments

[Bindfort] Remove unused whoami dependency pulling vulnerable shelljs@0.3.0

Reported by Bindfort Research using Bindfort's deep transitive dependency scanner with OSV.dev verification.

Summary

The current release and main both resolve this dependency chain:

exa-mcp-server@3.4.0
└─ whoami@0.0.3
   └─ shelljs@0.3.0

shelljs@0.3.0 is affected by two reviewed advisories fixed in 0.8.5:

Read the thread · 2026-08-04 · closed · external user · 0 comments

Claude Code plugin 3.3.10 has stale skills and cannot enable required MCP tools

Problem

The official Claude Code plugin currently has several packaging inconsistencies:

  1. .claude-plugin/plugin.json is still version 3.3.10, although the bundled Agent skill changed from four lifecycle tools to agent_run. Claude Code can therefore keep an older 3.3.10 cache indefinitely.
  2. The plugin MCP URL is fixed to https://mcp.exa.ai/mcp?client=claude-code-plugin. This exposes only web_search_exa and web_fetch_exa, while the bundled exa-agent skill requires `agent_

Read the thread · 2026-07-27 · open · external user · 0 comments

exa-mcp-server: we executed it (not linted it) in claude code + cursor — fit to ship, 2 findings

ran exa-mcp-server through throne executes the server in an isolated microVM and tests it against real claude code / cursor client behavior, not static analysis. security scan runs in the same pass. result: fit to ship, 0 failures across both clients. two things worth a glance:

index.cjs still has an obsolete protocol version string in source (2024-10-07) probably dead code, worth confirming 8 hardcoded outbound endpoints referenced directly in code, including a few (lodash.com, openjsf.org,

Read the thread · 2026-07-12 · open · external user · 0 comments

Failure to implement 401 Unauthorized response makes distribution of Connector impossible

Problem

According the the MCP Spec, MCP servers that support OAUTH2 authentication should respond to requests that do not contain an access token should respond with 401 Unauthorized: https://modelcontextprotocol.io/specification/2025-11-25/basic/authorization#authorization-server-discovery-sequence-diagram

This response triggers the MCP client (e.g. Claude Desktop) to initiate an OAUTH2 authentication flow.

Because the Exa MCP server does not respond with 401, but instead interprets unaut

Read the thread · 2026-07-09 · closed · external user · 0 comments

See all 24 reports Pod holds for Exa — of 89 qualified upstream.

Firsthand observations

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