Market around Tc39 Atlas

An MCP server and REST API for searching and browsing TC39 ECMAScript proposals, including Chinese translations, proposal stages, version data, and change history. The MCP package is prepared but not yet published to npm.

Visit bosens-china.github.io ↗Pricing page ↗

Explore the market

Prices and medians update for the tier you select.

Compare at

Tc39 Atlas · Pro

No Pro plan

—

Pro-MCP server median

$89.5

across 6 priced MCP servers

vs Pro MCP servers

No comparison

Tc39 Atlas doesn't sell Pro

ⓘ Comparisons are same provider type (MCP server) and same buyer tier (Pro). Never across tiers.

Market density

2nd pctile

1 competing vendors

Comparable listings · 30d

—

MCP servers · Pro median

$89.5/mo

6 priced · $41.75–$99 mid 50%

Price spectrum · Pro plans · 6 of 8 providers priced · log scale · $20 → $99/mo

MCP servers◻ shaded = middle 50% · line = median (all types)Tc39 Atlas has no comparable Pro price — not plotted

Products in this market

Ranked by how closely each one matches Tc39 Atlas's job. Prices show each provider's Pro state; entry prices are labelled as such. Unpriced products still belong to the market.

MMCP servers4Ranked by similarity

Tc39 Atlasthis listing

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.