Postern

Postern connects your Money, Health, Calendar, Mail, Contacts, and Home to any AI agent or harness through one self-hosted gateway. No glue code, no credentials handed to the agent, no guessing endpoints or schemas. Most of the information is served from the local cache, while the agents can fetch any information live. Access is granted per sector, per agent, is easily revocable, and all access by agents is audited and logged.