Market around Carl

An open-source MCP-oriented tool that helps AI agents search, collect, compare, and evaluate used items on Facebook Marketplace, preserving listings, photos, research, sources, and decisions for later review.

Visit github.com ↗Pricing page ↗

Explore the market

Prices and medians update for the tier you select.

Compare at

Carl · Pro

No Pro plan

—

Pro-MCP server median

$39

across 7 priced MCP servers

vs Pro MCP servers

No comparison

Carl doesn't sell Pro

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

Market density

30th pctile

53 competing vendors

Comparable listings · 30d

—

MCP servers · Pro median

$39/mo

7 priced · $18.5–$39 mid 50%

Price spectrum · Pro plans · 7 of 10 providers priced · log scale · $4.99 → $149/mo

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

Products in this market

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

MMCP servers19Ranked by similarity