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ContextStream MCP Server

by contextstreamio·io.github.contextstreamio/mcp-server·v0.4.81
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ContextStream MCP server for code context, memory, search, and AI tools.

C62/100grade C
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Safety scan
C62/100

full report

Adoption
Established

43 stars588 downloads/wk

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Nobody has reviewed ContextStream MCP Server yet.

If you have run it, two minutes of your experience saves the next person an afternoon.

ContextStream MCP Server tools (7, 3 write)

write = sends, deletes, buys or posts

Read from the package source without running it. The installed server may list more.

  • batch_operationswrite action

    Execute multiple independent read-only operations in one call. Rejects write or destructive operations.

  • contextstreamwrite action

    Execute any ContextStream operation. Use contextstream_help to see available operations. Example: contextstream({ op: "session_init", args: { folder_path: "/path/to/project" } }) This single tool replaces 50+ individual tools, dramatically reducing token overhead. All ContextStream functionality is accessible through this dispatcher.

  • contextstream_help

    Get help on available ContextStream operations or schema for a specific operation. Examples: - contextstream_help({}) - List all operations by category - contextstream_help({ op: "session_init" }) - Get schema for session_init - contextstream_help({ category: "Memory" }) - List memory operations only

  • contextstream_setup

    ContextStream is not configured. Call this tool for setup instructions.

  • execute_operationwrite action

    Execute an operation returned by operations or tool_search.

  • operations

    List available operations. Use execute_operation to run them.

  • tool_search

    Search available tools and hidden operations, then call direct tools or use execute_operation for deferred capabilities.

Public scan report

scanner v0.1.9 · 2026-09-25 · same rubric, same numbers if you re-run it

2 medium
  • Code scan26 source files scanned15/25
  • –Live reliabilityno gateway calls yet and no remote to proben/a
  • –Tool poisoningtools not inspected (local package is not executed); not countedn/a
  • Auth qualitystatic API keys via environment variables6/15
  • Maintenancelast push 1 days ago15/15
  • Maintainer identitynamespace and repository owner differ4/10

Findings (2)

  • mediumnpm install lifecycle script presentinstall.script
  • mediumnpm install lifecycle script presentinstall.script
    package.json: … "prepublishOnly": "npm run build", "postinstall": "node scripts/postinstall.js" }, "d…
Overall 62/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

What the publisher says

From the ContextStream MCP Server repository's README, as published. We do not edit it. Read it on GitHub

<!-- mcp-name: io.github.contextstream/mcp-server -->

ContextStream MCP Server

Persistent memory. Millisecond code search.

Your agent knows code. Give it the decisions behind yours.

Connect your code, docs, and conversations so your agents can find the right files, recall saved decisions, and build on past work across sessions and tools.

Start free with MCP

10,000 monthly credits. No credit card required.

Works with Claude Code, Cursor, Codex, and other supported MCP clients. Create your account or sign in during MCP onboarding. No separate website signup needed.

macOS and Linux

bash -o pipefail -c 'curl -fsSL https://contextstream.io/scripts/mcp.sh | bash'

Windows PowerShell

irm https://contextstream.io/scripts/mcp.ps1 | iex

Paste the command into your terminal and follow onboarding to connect your project and supported editor. Restart your editor after setup.

What gets installed and indexed? · Setup guide · Prefer to start on the web?

Make the next session useful

Ask your connected agent:

Use ContextStream to find the files relevant to my next change. Cite the

sources and retrieve any saved project decisions that should guide the work.

Then ask it to save a real decision and its reason. Start a new session and retrieve that decision without explaining it again. Indexing supplies code context; it cannot recover every undocumented decision.

Proof and data controls

95 ms median code search in our published benchmark. This is the measured successful-response median for the disclosed configuration, not a latency guarantee. See results, methodology, and limitations.

Scoped access. Traceable sources. Configurable capture. Indexing sends eligible source contents to ContextStream for hosted search. Transcript saving and local Git metadata capture are on by default and can be turned off. Review data handling and controls before connecting sensitive projects.

Other installation options and troubleshooting

npm (Node.js 20+)

npx -y @contextstream/mcp-server@latest setup

The npm launcher downloads the native Rust binary for your platform and verifies its SHA-256 checksum. Pin an exact package version for production automation.

Hosted MCP without a local process

For clients supporting Streamable HTTP and OAuth, the hosted endpoint is:

https://mcp.contextstream.io/mcp

Use the MCP documentation for your client's configuration and stdio alternatives. A hosted connection alone does not sync your local checkout.

Preview or diagnose setup

contextstream-mcp setup --dry-run
contextstream-mcp doctor --scope=all --only-configured

Scripted and CI setup

pipefail makes the install command fail when the download fails, instead of reporting success after installing nothing. setup --yes reads the key from CONTEXTSTREAMAPIKEY or saved credentials, and needs --workspace-id when the account has more than one workspace:

export CONTEXTSTREAM_API_KEY=...   # or: printf %s "$KEY" | contextstream-mcp configure --api-key-stdin
contextstream-mcp setup --yes --editors=claude --workspace-id=<UUID> --project-path=.

Open source and contributing

Shortened. The full README is on GitHub.

Nothing above is checked by us. What we check is on the safety report.

Install directly

Runs npx -y @contextstream/mcp-server on your machine. Read the scan report first; the gateway never runs local packages.

claude mcp add mcp-server -- npx -y @contextstream/mcp-server
Add to Cursor

ContextStream MCP Server: common questions

Is ContextStream MCP Server safe?
With care: it is graded C, so read the findings first (62/100). Read the ContextStream MCP Server safety report
How do I install ContextStream MCP Server?
It runs on your machine. Copy the Claude Code, Claude Desktop or Cursor config from the install section.
Does ContextStream MCP Server need an API key?
Yes. The registry entry asks for CONTEXTSTREAM_API_KEY.
Is ContextStream MCP Server maintained?
The last commit was in the last day (2026-09-25). The latest release is v0.4.81.
What can I use instead of ContextStream MCP Server?
Servers from other publishers that do the same job: Misakanet MCP server, Marm MCP server and M3 Memory MCP server. Compare all ContextStream MCP Server alternatives.

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