An observability and verification platform for x402 machine payments on Base, providing public payment metrics, endpoint catalogs, payer-quality checks, signed reports, and APIs for inspecting payment infrastructure.
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SmartFlow Observatory · Pro
No Pro plan
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Pro-platform median
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insufficient comparable pricing
vs Pro platforms
No comparison
SmartFlow Observatory doesn't sell Pro
ⓘ Comparisons are same provider type (platform) and same buyer tier (Pro). Never across tiers.
Market density
22nd pctile
20 competing vendors
Comparable listings · 30d
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Price spectrum · Pro plans · 3 of 6 providers priced · log scale · $4.99 → $99/mo
MCP servers APIs◻ shaded = middle 50% · line = median (all types)SmartFlow Observatory has no comparable Pro price — not plotted
Products in this market
Ranked by how closely each one matches SmartFlow Observatory'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.