AgentStamp creates immutable, cryptographic proofs of AI-generated files. Prove when a file was created, verify it was never altered, and build an audit trail for every AI session.
SHA-256 hash + Cloudflare timestamp. Tamper-evident by design.
stamp_file, stamp_text, verify_proof. No config, no friction.
Audit trail for AI-generated code. Share proofs with clients or regulators.
Add AgentStamp to Claude Code as an MCP server. One line in your config.
Run stamp_file on any file. It's hashed locally, then stored with a timestamp.
Anyone can verify the file matches the proof via a public link.
The AgentStamp MCP server (TypeScript), a Claude Code plugin config, and a landing page. Connects to any TimeStamp Vault-compatible API.
Yes. No subscription, no per-proof fee, no seat limit.
Yes. It's an MCP server, so any MCP-compatible harness (Claude Code, Cursor, custom agents) can use it.
Proofs are stored on Cloudflare (Pages + Workers + R2 + Neon). Files are stored in R2; hashes and metadata in Postgres.
$5 one-time. Yours forever.