O

One

withoneai/one · v1.2.4 · Tools & Integrations

by withoneaiOwner verifiedScan grade: Good

MCP server: connects agents to 1000+ apps such as Gmail, Slack, Stripe and HubSpot to find, document and execute authenticated API actions, hosted at https://mcp.withone.ai/mcp over OAuth or run locally over stdio with npx @withone/mcp

InstallSource
Follow0
Trust Score80Security scan83Components1
Protect this install with HOL Guard

Guard checks the skills and MCP servers a plugin adds on your machine and asks you before a risky action runs. The scores above are free, and no plan changes them.

Is One a fit?

From the plugin's manifest and HOL's scan. Anything the plugin does not declare is shown as not declared.

Works with

  • Antigravity CLI
  • MCP
  • 1 MCP server

Before you install

Sign-in
Not declared
Declared access
Not declared
License
Not declared

Check before relying on it

  • No license declared in the manifest.

What is One?

One is a published tools & integrations plugin for AI coding agents that works with Antigravity CLI and MCP, developed by withoneai and distributed through the HOL AI plugin registry. MCP server: connects agents to 1000+ apps such as Gmail, Slack, Stripe and HubSpot to find, document and execute authenticated API actions, hosted at https://mcp.withone.ai/mcp over OAuth or run locally over stdio with `npx @withone/mcp`.

Canonical slug
withoneai/one
Version
v1.2.4 · updated Nov 2, 2026

Registry snapshot

Owner verification
Verified on HOL as @paulkr
Scanner
HOL plugin scanner
Security result
Needs review
Digest verified
Yes

Trust and security

Trust & reputation

On-Chain Verified
80

HOL Trust Score

Per-metric points (0–100 each) combined via a weighted average into the overall score.

Installability
100/100
Maintenance
100/100
MCP server setup
100/100
Plugin Security
83/100
Provenance
80/100
Publisher Quality
100/100

Provenance

Plugin root
.
Source repo
https://github.com/withoneai/mcp
Source commit
b4b4a1a1e85d…
Publisher verified
Yes
Owner verified
@paulkr
Agent Plugins 1.0
Not detected

Continuous scanner CI not detected

This plugin remains listed. Its overall trust score is reduced by 10% because security checks are not maintained in the source repository's CI.

Optional: maintain the scanner in the source repository's CI to receive the full trust score. Listing does not require that change.

README badge not detected

Plugin owners can add the HOL badge to the repository README from Guard Plugins. Distribution, not security evidence. It adds a 2% engagement adjustment to the overall trust score and never changes the security result.

Security posture

See how the Trust Score is computed
Needs review
Security result
83
Security score
0
High findings
Provider
codex-plugin-scanner
Grade
B · Good
Version
3.24.2
codex:hol-plugin-scanner-c6UmZ8 / cisco-skill-scanner: skippedcodex:hol-plugin-scanner-c6UmZ8 / cisco-mcp-scanner: skipped

[codex:.] Manifest Validation

21/31

9 checks

[codex:.] Security

16/16

9 checks

[codex:.] Operational Security

3/6

5 checks

[codex:.] Best Practices

6/9

5 checks

[codex:.] Marketplace

N/A

3 checks · not applicable

[codex:.] Skill Security

N/A

3 checks · not applicable

[codex:.] Code Quality

10/10

2 checks

[gemini:.] Gemini Extension

10/10

3 checks

[gemini:.] Security

16/16

6 checks

[gemini:.] Operational Security

3/6

5 checks

[gemini:.] Code Quality

10/10

2 checks

Published advisories

None matched in GitHub security advisories, checked . This covers published advisories only, not problems nobody has reported.

GitHub security advisories are those the source repository has published.

Findings

lowoperational-securityDEPENDABOT_MISSINGReported 2 times

Automation or dependency surfaces exist, but .github/dependabot.yml is missing.

Add Dependabot updates for GitHub Actions and dependency manifests.

infomanifest-validationPLUGIN_JSON_RECOMMENDED_AUTHOR

The manifest is missing the documented recommended field "author".

Add "author" to strengthen the plugin manifest metadata.

infomanifest-validationPLUGIN_JSON_RECOMMENDED_HOMEPAGE

The manifest is missing the documented recommended field "homepage".

Add "homepage" to strengthen the plugin manifest metadata.

infomanifest-validationPLUGIN_JSON_RECOMMENDED_LICENSE

The manifest is missing the documented recommended field "license".

Add "license" to strengthen the plugin manifest metadata.

infomanifest-validationPLUGIN_JSON_RECOMMENDED_KEYWORDS

The manifest is missing the documented recommended field "keywords".

Add "keywords" to strengthen the plugin manifest metadata.

infomanifest-validationPLUGIN_JSON_INTERFACE_SHORTDESCRIPTION

The interface object is missing a valid "shortDescription" value.

Add a valid "shortDescription" field to the interface metadata.

infomanifest-validationPLUGIN_JSON_INTERFACE_LONGDESCRIPTION

The interface object is missing a valid "longDescription" value.

Add a valid "longDescription" field to the interface metadata.

infomanifest-validationPLUGIN_JSON_INTERFACE_CATEGORY

The interface object is missing a valid "category" value.

Add a valid "category" field to the interface metadata.

infomanifest-validationPLUGIN_JSON_INTERFACE_CAPABILITIES

The interface object is missing a valid "capabilities" value.

Add a valid "capabilities" field to the interface metadata.

infomanifest-validationPLUGIN_JSON_INTERFACE_ASSET_WEBSITEURL

The interface field "websiteURL" must use HTTPS or point to a safe in-repo asset.

Update "websiteURL" to use HTTPS or an existing relative asset path.

infomanifest-validationPLUGIN_JSON_INTERFACE_ASSET_PRIVACYPOLICYURL

The interface field "privacyPolicyURL" must use HTTPS or point to a safe in-repo asset.

Update "privacyPolicyURL" to use HTTPS or an existing relative asset path.

infomanifest-validationPLUGIN_JSON_INTERFACE_ASSET_TERMSOFSERVICEURL

The interface field "termsOfServiceURL" must use HTTPS or point to a safe in-repo asset.

Update "termsOfServiceURL" to use HTTPS or an existing relative asset path.

infomanifest-validationPLUGIN_JSON_INTERFACE_ASSET_COMPOSERICON

The interface field "composerIcon" must use HTTPS or point to a safe in-repo asset.

Update "composerIcon" to use HTTPS or an existing relative asset path.

infomanifest-validationPLUGIN_JSON_INTERFACE_ASSET_LOGO

The interface field "logo" must use HTTPS or point to a safe in-repo asset.

Update "logo" to use HTTPS or an existing relative asset path.

infomanifest-validationPLUGIN_JSON_INTERFACE_ASSET_SCREENSHOTS

The interface field "screenshots" must use HTTPS or point to a safe in-repo asset.

Update "screenshots" to use HTTPS or an existing relative asset path.

infobest-practicesCODEXIGNORE_MISSING

A .codexignore file helps prevent accidental inclusion of local artifacts and secrets.

Add a .codexignore file with generated assets, local state, and secret paths.

Install guidance

Install in Antigravity CLI

Install the bundled skills into Antigravity CLI with the open Skills CLI.

Skills CLI docs
  1. 1

    Install with the Skills CLI

    The open Skills CLI detects installed agents and installs this plugin's skills for Antigravity CLI.

    shell
  2. 2

    Restart and verify

    Start a new Antigravity CLI session and confirm the skill is listed before relying on it. The Skills CLI lists what it installed.

    shell

To remove it later, run npx [email protected] remove withoneai/mcp.

Did setup work in Antigravity CLI?

No setup reports for Antigravity CLI yet. Self-reported by signed-in visitors. Copying a command is not counted, and most installs are never reported.

Attested installs: Fewer than 10 attested installs of this plugin in week 2026-W44, so no number is shown. Counted from opt-in HOL Guard install reports, once per machine and runtime, and never mixed with the answers above. How install reports work.

Loading reviews

Plugin manifest

{
  "name": "one",
  "version": "1.2.4",
  "description": "Connect Gemini CLI to 1000+ apps (Gmail, Slack, Stripe, Shopify, HubSpot, Notion, Linear, Salesforce, QuickBooks and more) through One's hosted MCP server. Four tools: list connected integrations, search a platform's actions, read an action's real API documentation, and execute it. OAuth sign-in, nothing to install.",
  "mcpServers": "./.registry/mcp.json",
  "repository": "https://github.com/withoneai/mcp",
  "interface": {
    "displayName": "one",
    "developerName": "withoneai"
  },
  "holManifestOrigin": "repository",
  "registryIndexVersion": 9
}

Marketplace source

Repo URL
https://github.com/withoneai/mcp
Marketplace path
Unknown
Source path
.
Install policy
Unspecified

File inventory

.codex-plugin/plugin.json

plugin-manifest

570 bytes

70d6cba31087155e…

.registry/mcp.json

mcp-config

123 bytes

0e362547f7dcee33…

gemini-extension.json

file

518 bytes

afed05842327a30c…

LICENSE

file

1,432 bytes

18b5a27863cdeead…

package-lock.json

file

63,822 bytes

a9fcb53631476c5d…

package.json

file

1,050 bytes

c7734e4f48ff8610…

README.md

file

11,469 bytes

d81546664020b93b…

SECURITY.md

file

420 bytes

30ed72d574eb88d8…

tsconfig.json

file

355 bytes

f3f58e8d82389cac…

One — Frequently asked questions

What is One?
One is an AI plugin in the HOL registry. MCP server: connects agents to 1000+ apps such as Gmail, Slack, Stripe and HubSpot to find, document and execute authenticated API actions, hosted at https://mcp.withone.ai/mcp over OAuth or run locally over stdio with npx @withone/mcp.
How do I install One?
Install One in your harness: Antigravity CLI — npx [email protected] add withoneai/mcp; MCP — git clone https://github.com/withoneai/mcp; Any agent — npx [email protected] add withoneai/mcp. Full step-by-step guidance is on the HOL plugin page.
How do I install One in Antigravity CLI?
To install One in Antigravity CLI, start with npx [email protected] add withoneai/mcp. The complete step-by-step install guide for Antigravity CLI is on the HOL plugin page.
How do I install One in MCP?
To install One in MCP, start with git clone https://github.com/withoneai/mcp. The complete step-by-step install guide for MCP is on the HOL plugin page.
How is the Trust Score for One computed?
One has a HOL Trust Score of 80 out of 100. The score is a weighted sum of six components from a static scan of the source, capped for high-severity findings and adjusted by two disclosed policies. Memberships and payments are not inputs, and a scan is not a safety guarantee. Full breakdown: https://hol.org/registry/plugins/withoneai%2Fone/trust
Who publishes One?
One is published by withoneai and listed on HOL.

Directory acceptance

Listed in 0 of 5 directory lists

Read from the list each directory publishes on GitHub. Being listed means the directory accepted the plugin; it is not a HOL security rating.

Lists last read . HOL re-reads them every day.

Submitting it? Check it against each directory's rules

Install signal

HOL cannot see every install. These are separate signals from different sources, so they are not added together. Counts under each floor show as <N.

Install commands issued here
<5
HOL Guard install commands issued from this listing, last 28 days.
Opt-in install reports
<10
Machines that reported installing it through HOL Guard in week 2026-W44. Reporting is opt-in, so most installs are not counted.
HOL Guard workspaces
<5
Workspaces that approved it or include it in an approved-plugin feed, as of today.

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