SERVER

Primary Sources

Rank #44,356

io.github.simonmak-ascent/primary-sources-mcp

Free primary-source APIs across 8 categories, with provenance envelopes.

Versions unknown

by simonmak-ascent (7 servers)View repository ↗

First listed

Oct 2, 2026

Last publish date

—

PURPOSE

What you can do with Primary Sources

Primary Sources is a Model Context Protocol (MCP) server published by simonmak-ascent. It ranks #44,356 of 144,396 active servers on MCP Toplist. Primary Sources is listed on Glama; no version information is available from the registries that list it or from its repository. It was first listed on Oct 2, 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 Primary Sources 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 Primary Sources

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.

MCP Toplist probed the public endpoint on Oct 14, 2026 and could not complete the MCP handshake (jsonrpc error). Requirements remain unverified.

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

Declared in the registry install config

RESEARCH_CONTACT · optional
COMPANIES_HOUSE_API_KEY · optional
FRED_API_KEY · optional
NCBI_API_KEY · optional
NASA_API_KEY · optional

Hosted endpoint declared as public.

INSTALLATION AND FIRST TASK

Connect Primary Sources and confirm it works

Remote · HTTP

claude mcp add --transport http primary-sources-mcp https://primary-sources-mcp.vercel.app/mcp

npm package

claude mcp add primary-sources-mcp -e "RESEARCH_CONTACT=<your RESEARCH_CONTACT>" -e "COMPANIES_HOUSE_API_KEY=<your COMPANIES_HOUSE_API_KEY>" -e "FRED_API_KEY=<your FRED_API_KEY>" -e "NCBI_API_KEY=<your NCBI_API_KEY>" -e "NASA_API_KEY=<your NASA_API_KEY>" -- npx -y @simonmak-ascent/primary-sources-mcp

Replace each placeholder with your own value before saving.

Remote · HTTP

[mcp_servers.primary-sources-mcp]
url = "https://primary-sources-mcp.vercel.app/mcp"

Add to ~/.codex/config.toml.

npm package

[mcp_servers.primary-sources-mcp]
command = "npx"
args = ["-y", "@simonmak-ascent/primary-sources-mcp"]

[mcp_servers.primary-sources-mcp.env]
RESEARCH_CONTACT = "<your RESEARCH_CONTACT>"
COMPANIES_HOUSE_API_KEY = "<your COMPANIES_HOUSE_API_KEY>"
FRED_API_KEY = "<your FRED_API_KEY>"
NCBI_API_KEY = "<your NCBI_API_KEY>"
NASA_API_KEY = "<your NASA_API_KEY>"

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

Remote · HTTP

https://primary-sources-mcp.vercel.app/mcp

Settings → Connectors → “Add custom connector”, then paste this URL.

npm package

{
  "mcpServers": {
    "primary-sources-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@simonmak-ascent/primary-sources-mcp"
      ],
      "env": {
        "RESEARCH_CONTACT": "<your RESEARCH_CONTACT>",
        "COMPANIES_HOUSE_API_KEY": "<your COMPANIES_HOUSE_API_KEY>",
        "FRED_API_KEY": "<your FRED_API_KEY>",
        "NCBI_API_KEY": "<your NCBI_API_KEY>",
        "NASA_API_KEY": "<your NASA_API_KEY>"
      }
    }
  }
}

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

Remote · HTTP

{
  "mcpServers": {
    "primary-sources-mcp": {
      "url": "https://primary-sources-mcp.vercel.app/mcp"
    }
  }
}

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (per project).

npm package

{
  "mcpServers": {
    "primary-sources-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@simonmak-ascent/primary-sources-mcp"
      ],
      "env": {
        "RESEARCH_CONTACT": "<your RESEARCH_CONTACT>",
        "COMPANIES_HOUSE_API_KEY": "<your COMPANIES_HOUSE_API_KEY>",
        "FRED_API_KEY": "<your FRED_API_KEY>",
        "NCBI_API_KEY": "<your NCBI_API_KEY>",
        "NASA_API_KEY": "<your NASA_API_KEY>"
      }
    }
  }
}

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

Remote · HTTP

{
  "servers": {
    "primary-sources-mcp": {
      "type": "http",
      "url": "https://primary-sources-mcp.vercel.app/mcp"
    }
  }
}

Save as .vscode/mcp.json in your workspace.

npm package

{
  "servers": {
    "primary-sources-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@simonmak-ascent/primary-sources-mcp"
      ],
      "env": {
        "RESEARCH_CONTACT": "<your RESEARCH_CONTACT>",
        "COMPANIES_HOUSE_API_KEY": "<your COMPANIES_HOUSE_API_KEY>",
        "FRED_API_KEY": "<your FRED_API_KEY>",
        "NCBI_API_KEY": "<your NCBI_API_KEY>",
        "NASA_API_KEY": "<your NASA_API_KEY>"
      }
    }
  }
}

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

Remote · HTTP

{
  "mcpServers": {
    "primary-sources-mcp": {
      "serverUrl": "https://primary-sources-mcp.vercel.app/mcp"
    }
  }
}

Add to ~/.codeium/windsurf/mcp_config.json.

npm package

{
  "mcpServers": {
    "primary-sources-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@simonmak-ascent/primary-sources-mcp"
      ],
      "env": {
        "RESEARCH_CONTACT": "<your RESEARCH_CONTACT>",
        "COMPANIES_HOUSE_API_KEY": "<your COMPANIES_HOUSE_API_KEY>",
        "FRED_API_KEY": "<your FRED_API_KEY>",
        "NCBI_API_KEY": "<your NCBI_API_KEY>",
        "NASA_API_KEY": "<your NASA_API_KEY>"
      }
    }
  }
}

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

Remote · HTTP

{
  "mcpServers": {
    "primary-sources-mcp": {
      "url": "https://primary-sources-mcp.vercel.app/mcp"
    }
  }
}

npm package

{
  "mcpServers": {
    "primary-sources-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@simonmak-ascent/primary-sources-mcp"
      ],
      "env": {
        "RESEARCH_CONTACT": "<your RESEARCH_CONTACT>",
        "COMPANIES_HOUSE_API_KEY": "<your COMPANIES_HOUSE_API_KEY>",
        "FRED_API_KEY": "<your FRED_API_KEY>",
        "NCBI_API_KEY": "<your NCBI_API_KEY>",
        "NASA_API_KEY": "<your NASA_API_KEY>"
      }
    }
  }
}

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 simonmak-ascent

View all simonmak-ascent servers →

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

MAINTENANCE AND EVIDENCE

What changed, and when this was checked

First listed: Oct 2, 2026
Version history: Unavailable — no registry exposes versions and no release tags were found
Requirements evidence: MCP Toplist probed the public endpoint on Oct 14, 2026 and could not complete the MCP handshake (jsonrpc error). Requirements remain unverified.
Profile checked: Not yet — purpose, capabilities and requirements above come from registry data only
Ranking data as of: Oct 16, 2026

Registry sightings

Glama ↗listed since Oct 3, 2026 · still listed

Do you maintain Primary Sources? to correct or enrich this profile.

VERSIONS

Version information unavailable

The registry that lists this server does not expose version metadata, and no release tags were found on the linked repository. MCP Toplist cannot say how, or whether, this server is versioned.

STANDING

#44,356of 144,396 active serversTop 50%

Ranks ahead of 100,040 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.simonmak-ascent%2Fprimary-sources-mcp.svg)](https://mcptoplist.com/server/io.github.simonmak-ascent%2Fprimary-sources-mcp)

HTML

<a href="https://mcptoplist.com/server/io.github.simonmak-ascent%2Fprimary-sources-mcp"><img src="https://mcptoplist.com/badge/io.github.simonmak-ascent%2Fprimary-sources-mcp.svg" alt="MCP Toplist: Top 50% of 144,396" /></a>

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

FAQ

Frequently asked questions

Who maintains Primary Sources?: Primary Sources is maintained by simonmak-ascent, which publishes 7 MCP servers (4 total versions) tracked on MCP Toplist.
Is Primary Sources listed on the Official MCP Registry?: Primary Sources is not on the Official MCP Registry. It is listed on Glama.
How many versions does Primary Sources have?: Version information is unavailable for Primary Sources: no registry that lists it exposes version metadata, and no release tags were found on its repository.
Where can I find the source code for Primary Sources?: The source code for Primary Sources is hosted at github.com/simonmak-ascent/primary-sources-mcp.

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