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Market around Seiso

An open-source Markdown convention and linter for project documentation written by AI and read by humans or coding agents. Provides diagnostics, rule explanations, parsing, and integrations for Claude Code, pre-commit, and CI.

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Explore the market

Prices and medians update for the tier you select.

Compare at
Seiso · Pro
No Pro plan
—
Pro-provider median
—
insufficient comparable pricing
vs Pro providers
No comparison
Seiso doesn't sell Pro
ⓘ Comparisons are same provider type (provider) and same buyer tier (Pro). Never across tiers.
Market density
8th pctile
4 competing vendors
Comparable listings · 30d
—
MCP servers · Pro median
$29/mo
3 priced · $19.5–$39 mid 50%
Price spectrum · Pro plans · 4 of 5 providers priced · log scale · $10 → $49/mo
MCP servers APIs◻ shaded = middle 50% · line = median (all types)Seiso has no comparable Pro price — not plotted

Products in this market

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

OOther2Ranked by similarity
Seisothis listing
● OTHER
no public price
Markdown Gatekeeper
● OTHER72% similar
no public price
AAgents1Ranked by similarity
alson_annotation
● AGENT71% similar
no public price
MMCP servers1Ranked by similarity
ctxlint
● MCP71% 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.