SERVER

OpenSDR

Rank #25,664

io.github.arif-js/opensdr-mcp

Open-source AI SDR: B2B prospecting, email enrichment, buying signals and safe outreach staging.

2 versions

by arif-js (2 servers)View repository ↗

Listed & last published

Oct 15, 2026

PURPOSE

What you can do with OpenSDR

OpenSDR is a Model Context Protocol (MCP) server published by arif-js. It ranks #25,664 of 144,396 active servers on MCP Toplist. OpenSDR is listed across 2 registries — Official MCP and Glama, with 2 tracked versions. It was first listed on Oct 15, 2026 and most recently updated on Oct 15, 2026.

Not verifiedMCP Toplist has not yet written a checked profile for this server, so the paragraph above is assembled from registry data only. The repository README is the authority on what it does.

CAPABILITIES AND LIMITATIONS

What OpenSDR can and cannot do

Not verifiedMCP Toplist has not catalogued this server's tools or limitations. The repository README lists them.

REQUIREMENTS

What you need before using OpenSDR

DeclaredNo credentialsNo credentials declared

The registry listing declares no required environment variables or authentication. This is declared metadata, not a verified install — the repository README is the authority.

Declared by Glama, last synced Oct 16, 2026. Not independently verified by MCP Toplist.

Declared in the registry install config

APOLLO_API_KEY · optional
HUNTER_API_KEY · optional
EXA_API_KEY · optional
TAVILY_API_KEY · optional
INSTANTLY_API_KEY · optional
HUBSPOT_ACCESS_TOKEN · optional
OPENSDR_READ_ONLY · optional
OPENSDR_MAX_CREDITS_PER_CALL · optional
OPENSDR_DATA_DIR · optional

INSTALLATION AND FIRST TASK

Connect OpenSDR and confirm it works

npm package

claude mcp add opensdr-mcp -e "APOLLO_API_KEY=<your APOLLO_API_KEY>" -e "HUNTER_API_KEY=<your HUNTER_API_KEY>" -e "EXA_API_KEY=<your EXA_API_KEY>" -e "TAVILY_API_KEY=<your TAVILY_API_KEY>" -e "INSTANTLY_API_KEY=<your INSTANTLY_API_KEY>" -e "HUBSPOT_ACCESS_TOKEN=<your HUBSPOT_ACCESS_TOKEN>" -e "OPENSDR_READ_ONLY=<your OPENSDR_READ_ONLY>" -e "OPENSDR_MAX_CREDITS_PER_CALL=<your OPENSDR_MAX_CREDITS_PER_CALL>" -e "OPENSDR_DATA_DIR=<your OPENSDR_DATA_DIR>" -- npx -y opensdr-mcp

Replace each placeholder with your own value before saving.

npm package

[mcp_servers.opensdr-mcp]
command = "npx"
args = ["-y", "opensdr-mcp"]

[mcp_servers.opensdr-mcp.env]
APOLLO_API_KEY = "<your APOLLO_API_KEY>"
HUNTER_API_KEY = "<your HUNTER_API_KEY>"
EXA_API_KEY = "<your EXA_API_KEY>"
TAVILY_API_KEY = "<your TAVILY_API_KEY>"
INSTANTLY_API_KEY = "<your INSTANTLY_API_KEY>"
HUBSPOT_ACCESS_TOKEN = "<your HUBSPOT_ACCESS_TOKEN>"
OPENSDR_READ_ONLY = "<your OPENSDR_READ_ONLY>"
OPENSDR_MAX_CREDITS_PER_CALL = "<your OPENSDR_MAX_CREDITS_PER_CALL>"
OPENSDR_DATA_DIR = "<your OPENSDR_DATA_DIR>"

Add to ~/.codex/config.toml. Replace each placeholder with your own value before saving.

npm package

{
  "mcpServers": {
    "opensdr-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "opensdr-mcp"
      ],
      "env": {
        "APOLLO_API_KEY": "<your APOLLO_API_KEY>",
        "HUNTER_API_KEY": "<your HUNTER_API_KEY>",
        "EXA_API_KEY": "<your EXA_API_KEY>",
        "TAVILY_API_KEY": "<your TAVILY_API_KEY>",
        "INSTANTLY_API_KEY": "<your INSTANTLY_API_KEY>",
        "HUBSPOT_ACCESS_TOKEN": "<your HUBSPOT_ACCESS_TOKEN>",
        "OPENSDR_READ_ONLY": "<your OPENSDR_READ_ONLY>",
        "OPENSDR_MAX_CREDITS_PER_CALL": "<your OPENSDR_MAX_CREDITS_PER_CALL>",
        "OPENSDR_DATA_DIR": "<your OPENSDR_DATA_DIR>"
      }
    }
  }
}

Add to claude_desktop_config.json (Settings → Developer → Edit Config). Replace each placeholder with your own value before saving.

npm package

{
  "mcpServers": {
    "opensdr-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "opensdr-mcp"
      ],
      "env": {
        "APOLLO_API_KEY": "<your APOLLO_API_KEY>",
        "HUNTER_API_KEY": "<your HUNTER_API_KEY>",
        "EXA_API_KEY": "<your EXA_API_KEY>",
        "TAVILY_API_KEY": "<your TAVILY_API_KEY>",
        "INSTANTLY_API_KEY": "<your INSTANTLY_API_KEY>",
        "HUBSPOT_ACCESS_TOKEN": "<your HUBSPOT_ACCESS_TOKEN>",
        "OPENSDR_READ_ONLY": "<your OPENSDR_READ_ONLY>",
        "OPENSDR_MAX_CREDITS_PER_CALL": "<your OPENSDR_MAX_CREDITS_PER_CALL>",
        "OPENSDR_DATA_DIR": "<your OPENSDR_DATA_DIR>"
      }
    }
  }
}

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (per project). Replace each placeholder with your own value before saving.

npm package

{
  "servers": {
    "opensdr-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "opensdr-mcp"
      ],
      "env": {
        "APOLLO_API_KEY": "<your APOLLO_API_KEY>",
        "HUNTER_API_KEY": "<your HUNTER_API_KEY>",
        "EXA_API_KEY": "<your EXA_API_KEY>",
        "TAVILY_API_KEY": "<your TAVILY_API_KEY>",
        "INSTANTLY_API_KEY": "<your INSTANTLY_API_KEY>",
        "HUBSPOT_ACCESS_TOKEN": "<your HUBSPOT_ACCESS_TOKEN>",
        "OPENSDR_READ_ONLY": "<your OPENSDR_READ_ONLY>",
        "OPENSDR_MAX_CREDITS_PER_CALL": "<your OPENSDR_MAX_CREDITS_PER_CALL>",
        "OPENSDR_DATA_DIR": "<your OPENSDR_DATA_DIR>"
      }
    }
  }
}

Save as .vscode/mcp.json in your workspace. Replace each placeholder with your own value before saving.

npm package

{
  "mcpServers": {
    "opensdr-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "opensdr-mcp"
      ],
      "env": {
        "APOLLO_API_KEY": "<your APOLLO_API_KEY>",
        "HUNTER_API_KEY": "<your HUNTER_API_KEY>",
        "EXA_API_KEY": "<your EXA_API_KEY>",
        "TAVILY_API_KEY": "<your TAVILY_API_KEY>",
        "INSTANTLY_API_KEY": "<your INSTANTLY_API_KEY>",
        "HUBSPOT_ACCESS_TOKEN": "<your HUBSPOT_ACCESS_TOKEN>",
        "OPENSDR_READ_ONLY": "<your OPENSDR_READ_ONLY>",
        "OPENSDR_MAX_CREDITS_PER_CALL": "<your OPENSDR_MAX_CREDITS_PER_CALL>",
        "OPENSDR_DATA_DIR": "<your OPENSDR_DATA_DIR>"
      }
    }
  }
}

Add to ~/.codeium/windsurf/mcp_config.json. Replace each placeholder with your own value before saving.

npm package

{
  "mcpServers": {
    "opensdr-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "opensdr-mcp"
      ],
      "env": {
        "APOLLO_API_KEY": "<your APOLLO_API_KEY>",
        "HUNTER_API_KEY": "<your HUNTER_API_KEY>",
        "EXA_API_KEY": "<your EXA_API_KEY>",
        "TAVILY_API_KEY": "<your TAVILY_API_KEY>",
        "INSTANTLY_API_KEY": "<your INSTANTLY_API_KEY>",
        "HUBSPOT_ACCESS_TOKEN": "<your HUBSPOT_ACCESS_TOKEN>",
        "OPENSDR_READ_ONLY": "<your OPENSDR_READ_ONLY>",
        "OPENSDR_MAX_CREDITS_PER_CALL": "<your OPENSDR_MAX_CREDITS_PER_CALL>",
        "OPENSDR_DATA_DIR": "<your OPENSDR_DATA_DIR>"
      }
    }
  }
}

Replace each placeholder with your own value before saving.

First successful task

After adding the config, ask your client to list this server's tools. A tool list confirms the connection; an empty list or an error means the server did not start or needs credentials.

ALTERNATIVES

When to choose another server

Other servers by arif-js

Citepath#16,944

View all arif-js servers →

No task-specific alternatives are catalogued for OpenSDRyet; the list above is its publisher's other servers.

MAINTENANCE AND EVIDENCE

What changed, and when this was checked

First listed: Oct 15, 2026
Latest version published: Oct 15, 2026
Version history: 2 versions tracked (below)
Requirements evidence: Declared by Glama, last synced Oct 16, 2026. Not independently verified by MCP Toplist.
Profile checked: Not yet — purpose, capabilities and requirements above come from registry data only
Ranking data as of: Oct 16, 2026

Registry sightings

Official MCP ↗listed since Oct 16, 2026 · still listed
Glama ↗listed since Oct 16, 2026 · still listed

Do you maintain OpenSDR? to correct or enrich this profile.

VERSIONS

Available versions (2)

Version	Published
1.0.1	Oct 15, 2026
1.0.0	Oct 15, 2026

STANDING

#25,664of 144,396 active serversTop 25%

Ranks ahead of 118,732 of 144,396 servers on MCP Toplist.

BADGE

Show your rank

Maintain this server? Add the live rank badge to your README — it updates automatically as the leaderboard changes.

Markdown

[![MCP Toplist](https://mcptoplist.com/badge/io.github.arif-js%2Fopensdr-mcp.svg)](https://mcptoplist.com/server/io.github.arif-js%2Fopensdr-mcp)

HTML

<a href="https://mcptoplist.com/server/io.github.arif-js%2Fopensdr-mcp"><img src="https://mcptoplist.com/badge/io.github.arif-js%2Fopensdr-mcp.svg" alt="MCP Toplist: Top 25% of 144,396" /></a>

Variants: append ?metric=score or ?metric=stars to the image URL.

FAQ

Frequently asked questions

Who maintains OpenSDR?: OpenSDR is maintained by arif-js, which publishes 2 MCP servers (4 total versions) tracked on MCP Toplist.
Is OpenSDR listed on the Official MCP Registry?: Yes — OpenSDR is listed on the Official MCP Registry, alongside Glama.
How many versions does OpenSDR have?: MCP Toplist tracks 2 versions of OpenSDR, most recently published on Oct 15, 2026.
Where can I find the source code for OpenSDR?: The source code for OpenSDR is hosted at github.com/arif-js/opensdr-mcp.

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