DocImprint is MCP-native verifiable document memory for AI agents. One POST /v1/extract turns PDFs and URLs into tamper-evident evidence bundles — SHA-256 manifests, Merkle citations, free offline verify. Pay per call with x402 USDC on Base, or use API keys. Built for legal, finance, and compliance agents that must prove what they read — beyond logs.The verifiable document layer for AI agents — tamper-evident evidence bundles, cryptographic proofs, MCP-native, and x402 USDC pay-per-call on Base.