Certificate Transparency search service with a free JSON API and MCP server. It lets security and DevOps teams search public TLS certificates by domain, organization, serial number, or SHA-256 fingerprint.
Prices and medians update for the tier you select.
Compare at
ctlogs.dev · Pro
No Pro plan
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Pro-provider median
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insufficient comparable pricing
vs Pro providers
No comparison
ctlogs.dev doesn't sell Pro
ⓘ Comparisons are same provider type (provider) and same buyer tier (Pro). Never across tiers.
Market density
13th pctile
11 competing vendors
Comparable listings · 30d
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MCP servers · Pro median
$31.03/mo
10 priced · $20.5–$49 mid 50%
Price spectrum · Pro plans · 10 of 11 providers priced · log scale · $9 → $199/mo
MCP servers◻ shaded = middle 50% · line = median (all types)ctlogs.dev has no comparable Pro price — not plotted
Products in this market
Ranked by how closely each one matches ctlogs.dev's job. Prices show each provider's Pro state; entry prices are labelled as such. Unpriced products still belong to the market.
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.