Market around Changelog State API

Machine-payable API that monitors release notes and changelogs for 42 vendors and projects, providing release history and source-quoted breaking-change tracking for AI agents. Paid structured queries use x402 and USDC on Base.

Visit changelog-state-api.replit.app ↗

Explore the market

Prices and medians update for the tier you select.

Compare at

Changelog State API · Pro

No Pro plan

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Pro-provider median

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insufficient comparable pricing

vs Pro providers

No comparison

Changelog State API doesn't sell Pro

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

Market density

11th pctile

6 competing vendors

Comparable listings · 30d

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MCP servers · Pro median

$19/mo

3 priced · —–— mid 50%

Price spectrum · Pro plans · 4 of 4 providers priced · log scale · $12 → $35/mo

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

Products in this market

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

OOther1Ranked by similarity

Changelog State APIthis listing

● OTHER

no public price

MMCP servers3Ranked by similarity

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.