Mintlify raises $45M Series B led by Andreessen Horowitz (a16z) and Salesforce Ventures to scale AI knowledge infrastructure

50% of Mintlify's docs traffic already comes from AI agents — that number justifies the $500M valuation more than the 20k customer headcount. a16z led both the A and B rounds, which tells you they're not betting on "better docs" but on docs-as-infrastructure becoming the chokepoint for agentic workflows. MCP support is the key bet: structured, machine-readable context is becoming the interface layer between AI agents and every software product, and whoever owns that layer owns the toll road.

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More coverage

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