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Penholder

Holds every agent write in a governed spreadsheet until a human approves each cell, with optional writeback to Postgres or MySQL.

DataAgentsWorkflow automationCompliance
penholder.ai ↗
At a glanceswept 2026-10-12

not read yet

Use

For
Teams letting AI agents write to spreadsheets or production databases and needing human approval first.
Price
From $20/mopricing page, read 2026-10-13 ↗
Activity
Actively maintainedsite updated 7 weeks ago
Company
Domain since 2026domain registered
AlternativesSet it up for my teamIs Penholder yours? Claim the card →
What people do with itread off penholder.ai on 2026-10-13
  • hold agent spreadsheet edits until a human approves
  • review proposed database writes cell by cell
  • write approved changes back to Postgres or MySQL
The companyeach fact with its source · read 2026-10-13
  • Domain since2026domain registered
Your datawhat they publish, each line with its page · read 2026-10-13

“We hold as little of your data as possible, we never sell it, and we never use it to train models.”

privacy policy ↗

These are Penholder's own statements, read from its pages. We did not audit them. A line that is missing was not found on the pages we read; it does not mean the practice is absent.

How a program reaches itfound, not claimed · read 2026-10-13
  • MCP serverai.penholder/penholderverified in the MCP registry
  • Stateanswers, requires sign-inchecked 2026-10-13
  • Address to connectapi.penholder.ai/mcp
  • MCP docspenholder.ai/mcp-write-governance-elicitation-vs-write-gate.htmlthe vendor's page ↗

MCP server details →

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.

Alternatives in Databy use, among tools still maintained

Figure and bar: visits/mo, estimate · year: online since

All Data tools →

Questions this page answers
  • What is Penholder?

    Holds every agent write in a governed spreadsheet until a human approves each cell, with optional writeback to Postgres or MySQL. It is listed in the Atlas under Data.

  • Who is Penholder for?

    Teams letting AI agents write to spreadsheets or production databases and needing human approval first.

  • How much does Penholder cost?

    Paid plans start at $20/mo, per Penholder's pricing page on 2026-10-13.

  • Is Penholder free?

    No. Its pricing page showed no free plan on 2026-10-13.

  • Do people use Penholder?

    Little sign of use.

  • Is Penholder still maintained?

    Actively maintained: site updated 7 weeks ago.

  • Does Penholder train AI on your data?

    No, per its privacy policy (2026-10-13): “We hold as little of your data as possible, we never sell it, and we never use it to train models.”

  • Is Penholder safe?

    We do not audit vendors. What Penholder publishes, read 2026-10-13: on training with your data, “We hold as little of your data as possible, we never sell it, and we never use it to train models.”.

  • What are alternatives to Penholder?

    In Data, by use: Yugabyte, Stroke, Autonoly, Granter, Oasis, SmartVerify DataExchange.

Not quite it? Describe the job

beta

Five tools from the Atlas that fit it, each judged against what you wrote.

How we read a tool

No votes, no reviews, no vendor claims. Every week a crawler reads each tool's own site and a few public registries, and the words on the card are bands over what it read.

  • Use: visits to the site (estimated), installs from npm and PyPI, presence in Chrome's usage report.
  • Activity: the newest release on GitHub, npm or PyPI; the newest dated page on the site; open roles on a public jobs board.
  • Price: the vendor's own pricing page, read with the date. A figure is printed only when it is on that page.
  • The line and the use cases are written by us from the homepage, one tool at a time, and refused when they repeat the vendor's marketing.

How AI assistants read each site — the reading vendors ask us about — is on each tool's own visibility page.