SERVER

One

Rank #4,037

ai.withone/mcp

Find, document and execute authenticated API calls across 700+ apps via one MCP server

7 versions

12 GitHub stars

by withoneai (3 servers)View repository ↗

First listed

Mar 21, 2026

Last publish date

Sep 30, 2026

PURPOSE

What you can do with One

One is a Model Context Protocol (MCP) server published by withoneai. It ranks #4,037 of 171,126 active servers on MCP Toplist, and its repository has 12 GitHub stars. One is listed across 4 registries — Official MCP, PulseMCP, Glama and mcp.so, with 7 tracked versions. It was first listed on Mar 21, 2026 and most recently updated on Sep 30, 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 One 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 One

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 Nov 3, 2026 and could not complete the MCP handshake (jsonrpc error). Requirements remain unverified.

Declared by the Official MCP Registry, last synced Nov 7, 2026. Not independently verified by MCP Toplist.

Declared in the registry install config

ONE_SECRET · required
ONE_PERMISSIONS · optional
ONE_CONNECTION_KEYS · optional
ONE_ACTION_IDS · optional
ONE_KNOWLEDGE_AGENT · optional
ONE_IDENTITY · optional
ONE_IDENTITY_TYPE · optional

Hosted endpoint declared as public.

INSTALLATION AND FIRST TASK

Connect One and confirm it works

Remote · HTTP

claude mcp add --transport http withone https://mcp.withone.ai/mcp

npm package

claude mcp add withone -e "ONE_SECRET=<your ONE_SECRET>" -e "ONE_PERMISSIONS=<your ONE_PERMISSIONS>" -e "ONE_CONNECTION_KEYS=<your ONE_CONNECTION_KEYS>" -e "ONE_ACTION_IDS=<your ONE_ACTION_IDS>" -e "ONE_KNOWLEDGE_AGENT=<your ONE_KNOWLEDGE_AGENT>" -e "ONE_IDENTITY=<your ONE_IDENTITY>" -e "ONE_IDENTITY_TYPE=<your ONE_IDENTITY_TYPE>" -- npx -y @withone/mcp

Replace each placeholder with your own value before saving.

Remote · HTTP

[mcp_servers.withone]
url = "https://mcp.withone.ai/mcp"

Add to ~/.codex/config.toml.

npm package

[mcp_servers.withone]
command = "npx"
args = ["-y", "@withone/mcp"]

[mcp_servers.withone.env]
ONE_SECRET = "<your ONE_SECRET>"
ONE_PERMISSIONS = "<your ONE_PERMISSIONS>"
ONE_CONNECTION_KEYS = "<your ONE_CONNECTION_KEYS>"
ONE_ACTION_IDS = "<your ONE_ACTION_IDS>"
ONE_KNOWLEDGE_AGENT = "<your ONE_KNOWLEDGE_AGENT>"
ONE_IDENTITY = "<your ONE_IDENTITY>"
ONE_IDENTITY_TYPE = "<your ONE_IDENTITY_TYPE>"

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

Remote · HTTP

https://mcp.withone.ai/mcp

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

npm package

{
  "mcpServers": {
    "withone": {
      "command": "npx",
      "args": [
        "-y",
        "@withone/mcp"
      ],
      "env": {
        "ONE_SECRET": "<your ONE_SECRET>",
        "ONE_PERMISSIONS": "<your ONE_PERMISSIONS>",
        "ONE_CONNECTION_KEYS": "<your ONE_CONNECTION_KEYS>",
        "ONE_ACTION_IDS": "<your ONE_ACTION_IDS>",
        "ONE_KNOWLEDGE_AGENT": "<your ONE_KNOWLEDGE_AGENT>",
        "ONE_IDENTITY": "<your ONE_IDENTITY>",
        "ONE_IDENTITY_TYPE": "<your ONE_IDENTITY_TYPE>"
      }
    }
  }
}

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

Remote · HTTP

{
  "mcpServers": {
    "withone": {
      "url": "https://mcp.withone.ai/mcp"
    }
  }
}

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

npm package

{
  "mcpServers": {
    "withone": {
      "command": "npx",
      "args": [
        "-y",
        "@withone/mcp"
      ],
      "env": {
        "ONE_SECRET": "<your ONE_SECRET>",
        "ONE_PERMISSIONS": "<your ONE_PERMISSIONS>",
        "ONE_CONNECTION_KEYS": "<your ONE_CONNECTION_KEYS>",
        "ONE_ACTION_IDS": "<your ONE_ACTION_IDS>",
        "ONE_KNOWLEDGE_AGENT": "<your ONE_KNOWLEDGE_AGENT>",
        "ONE_IDENTITY": "<your ONE_IDENTITY>",
        "ONE_IDENTITY_TYPE": "<your ONE_IDENTITY_TYPE>"
      }
    }
  }
}

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

Remote · HTTP

{
  "servers": {
    "withone": {
      "type": "http",
      "url": "https://mcp.withone.ai/mcp"
    }
  }
}

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

npm package

{
  "servers": {
    "withone": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@withone/mcp"
      ],
      "env": {
        "ONE_SECRET": "<your ONE_SECRET>",
        "ONE_PERMISSIONS": "<your ONE_PERMISSIONS>",
        "ONE_CONNECTION_KEYS": "<your ONE_CONNECTION_KEYS>",
        "ONE_ACTION_IDS": "<your ONE_ACTION_IDS>",
        "ONE_KNOWLEDGE_AGENT": "<your ONE_KNOWLEDGE_AGENT>",
        "ONE_IDENTITY": "<your ONE_IDENTITY>",
        "ONE_IDENTITY_TYPE": "<your ONE_IDENTITY_TYPE>"
      }
    }
  }
}

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

Remote · HTTP

{
  "mcpServers": {
    "withone": {
      "serverUrl": "https://mcp.withone.ai/mcp"
    }
  }
}

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

npm package

{
  "mcpServers": {
    "withone": {
      "command": "npx",
      "args": [
        "-y",
        "@withone/mcp"
      ],
      "env": {
        "ONE_SECRET": "<your ONE_SECRET>",
        "ONE_PERMISSIONS": "<your ONE_PERMISSIONS>",
        "ONE_CONNECTION_KEYS": "<your ONE_CONNECTION_KEYS>",
        "ONE_ACTION_IDS": "<your ONE_ACTION_IDS>",
        "ONE_KNOWLEDGE_AGENT": "<your ONE_KNOWLEDGE_AGENT>",
        "ONE_IDENTITY": "<your ONE_IDENTITY>",
        "ONE_IDENTITY_TYPE": "<your ONE_IDENTITY_TYPE>"
      }
    }
  }
}

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

Remote · HTTP

{
  "mcpServers": {
    "withone": {
      "url": "https://mcp.withone.ai/mcp"
    }
  }
}

npm package

{
  "mcpServers": {
    "withone": {
      "command": "npx",
      "args": [
        "-y",
        "@withone/mcp"
      ],
      "env": {
        "ONE_SECRET": "<your ONE_SECRET>",
        "ONE_PERMISSIONS": "<your ONE_PERMISSIONS>",
        "ONE_CONNECTION_KEYS": "<your ONE_CONNECTION_KEYS>",
        "ONE_ACTION_IDS": "<your ONE_ACTION_IDS>",
        "ONE_KNOWLEDGE_AGENT": "<your ONE_KNOWLEDGE_AGENT>",
        "ONE_IDENTITY": "<your ONE_IDENTITY>",
        "ONE_IDENTITY_TYPE": "<your ONE_IDENTITY_TYPE>"
      }
    }
  }
}

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 withoneai

One Agent Plugin#25,534

View all withoneai servers →

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

MAINTENANCE AND EVIDENCE

What changed, and when this was checked

First listed: Mar 21, 2026
Latest version published: Sep 30, 2026
Version history: 7 versions tracked (below)
Requirements evidence: MCP Toplist probed the public endpoint on Nov 3, 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: Nov 7, 2026

Registry sightings

PulseMCP ↗listed since May 22, 2026 · still listed
Official MCP ↗listed since Aug 13, 2026 · still listed
Glama ↗listed since Aug 13, 2026 · still listed
mcp.so ↗listed since Aug 26, 2026 · still listed

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

VERSIONS

Available versions (7)

Version	Published
2.0.0	Sep 30, 2026
1.4.1	Sep 25, 2026
1.4.0	Sep 24, 2026
1.2.4	Aug 20, 2026
1.2.3	Aug 17, 2026
1.2.2	Aug 12, 2026
1.2.1	Aug 12, 2026

STANDING

#4,037of 171,126 active serversTop 5%

Ranks ahead of 167,089 of 171,126 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/ai.withone%2Fmcp.svg)](https://mcptoplist.com/server/ai.withone%2Fmcp)

HTML

<a href="https://mcptoplist.com/server/ai.withone%2Fmcp"><img src="https://mcptoplist.com/badge/ai.withone%2Fmcp.svg" alt="MCP Toplist: Top 5% of 171,126" /></a>

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

FAQ

Frequently asked questions

Who maintains One?: One is maintained by withoneai, which publishes 3 MCP servers (10 total versions) tracked on MCP Toplist.
Is One listed on the Official MCP Registry?: Yes — One is listed on the Official MCP Registry, alongside PulseMCP, Glama and mcp.so.
How many versions does One have?: MCP Toplist tracks 7 versions of One, most recently published on Sep 30, 2026.
Where can I find the source code for One?: The source code for One is hosted at github.com/withoneai/pica-mcp.

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