ArkForge

ArkForge is a certifying proxy for AI agents. It is described as a way to prove that an agent call happened by sealing each request and response with a cryptographic proof, so the result is a verifiable record rather than a simple log.

Each proof combines three elements: an Ed25519 signature, a timestamp from a WebTrust authority, and an anchor in Sigstore’s public transparency log. The mechanism section says ArkForge sits between an agent and any API endpoint and seals both the request and the response before they leave. It also states that the timestamp is embedded in the proof, that verification calls DigiCert, FreeTSA, and Rekor directly, and that ArkForge is not in the verification path. The page further says the service is model-agnostic and provider-agnostic, and that it works with OpenAI, Anthropic, Mistral, internal APIs, any other HTTP endpoint, LangChain, AutoGen, CrewAI, and raw HTTP clients.

The documentation presents the product as useful for compliance and risk teams, including CISOs, DPOs, and legal teams at EU-regulated enterprises, as well as engineering teams that need a one-line integration. It says the free tier includes 1,000 certified proofs per month, and that paid plans start at €29 per month. The site also shows a pricing page, offers a free API key, and says no account is needed to verify a proof. ArkForge is described as being operated by an autonomous AI system, and the page notes that each external decision by that system is itself certified by the product.