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Market around Penholder

Approval gate for AI agent writes to governed spreadsheets, Postgres, and MySQL. Agent proposals remain pending until a human approves them, with per-cell controls, fail-closed commits, provenance, and a tamper-evident operation log.

Visit penholder.ai ↗Pricing page ↗
Pricing (3 buyer tiers · 5 plans)
Free plan available Free
As parsed from penholder.ai/pricing.html on 2026-10-10.

Explore the market

Prices and medians update for the tier you select.

Compare at
Penholder · Individual
$20/mo
Personal plan
Individual-provider median
—
insufficient comparable pricing
vs Individual providers
Insufficient
comparable pricing
ⓘ Comparisons are same provider type (provider) and same buyer tier (Individual). Never across tiers.
Market density
46th pctile
79 competing vendors
Comparable listings · 30d
—
Price spectrum · Individual plans · 1 of 6 providers priced · log scale · $20 → $20/mo
Other◻ shaded = middle 50% · line = median (all types)large ringed dot = Penholder ($20/mo)

Products in this market

Ranked by how closely each one matches Penholder's job. Prices show each provider's Individual state; entry prices are labelled as such. Unpriced products still belong to the market.

OOther8Ranked by similarity
Penholderthis listing
● OTHER
$20/mo Individual
Squelette
● OTHER76% similar
no public price
Countersign
● OTHER74% similar
no public price
Agent Effect Gate
● OTHER74% similar
no public price
AC
ACP
● OTHER71% similar
no public price
Midplane
● OTHER70% similar
no public price
Collaborative Human-Agent Protocol
● OTHER70% similar
no public price
Civitas
● OTHER70% similar
no public price
MMCP servers20Ranked by similarity
Approval-Gated MCP
● MCP78% similar
no public price
MCP Interactive Editor
● MCP75% similar
no public price
AgentSQL
● MCP75% similar
no public price
Safe MCP Server
● MCP74% similar
no public price
Ccmcp
● MCP74% similar
no Individual plan
entry $19/mo
PA
Pandaone Guard
● MCP74% similar
no public price
Marrow AI MCP Server
● MCP73% similar
no public price
Mainspring
● MCP73% similar
no public price
bq-guard-mcp
● MCP72% similar
no public price
The Nervous System
● MCP72% similar
no public price
Catalyst - AI Agent Governance
● MCP72% similar
no public price
SQ
Sqlguard
● MCP72% similar
no Individual plan
entry $99/mo
Database Gateway
● MCP71% similar
no public price
data-agent-rules
● MCP71% similar
no public price
ActionDock
● MCP71% similar
no Individual plan
entry $49/mo
CreditDelta MCP Guardian
● MCP71% similar
no public price
Arroway
● MCP71% similar
no public price
PreSQL
● MCP70% similar
no public price
mcpcut
● MCP70% similar
no public price
arifOS MCP
● MCP70% similar
no public price
PPlatforms3Ranked by similarity
Satgate
● PLATFORM73% similar
custom quote Individual
not monthly-comparable
Lunar
● PLATFORM72% similar
no public price
Fyllocode
● PLATFORM72% similar
no public price
FFrameworks5Ranked by similarity
Decapod
● FRAMEWORK73% similar
no public price
Thumbgate
● FRAMEWORK73% similar
no Individual plan
entry $19/mo
MREA Framework
● FRAMEWORK71% similar
no public price
Agentic Os
● FRAMEWORK70% similar
no public price
Sidclaw
● FRAMEWORK70% similar
no public price
AAgents4Ranked by similarity
Laya-OCR-Guard
● AGENT72% similar
no public price
Openbox
● AGENT72% similar
no public price
handup
● AGENT72% similar
no public price
Agentgrc Ai
● AGENT71% similar
no public price

Market = the products most similar to this one by capability; prices are median / quartiles over its priced members, separated by provider type and buyer tier.