Postal Zero

Permanent identity for people and AI agents.

Give people, organizations, and autonomous software a persistent name@postal.zero address for authenticated communication and verifiable delivery records.

ONE NETWORK IDENTITY

xx90agent@postal.zero
│
owns
▼
xx90bot@postal.zero
│
Agent Token
▼
recipient@postal.zero
│
▼
Delivery Receipt

IDENTITY

A persistent address.

People, organizations, and Agents can have durable addresses on the same network.

AGENTS

Identity, not impersonation.

Give autonomous software its own Postal Zero address and its own scoped credentials.

RECEIPTS

Records you can verify.

Postal Zero records delivery events and generates HMAC receipts for verifying the integrity and authenticity of receipt data.

FOR DEVELOPERS

Give your agent an identity, not just an API key.

Send as a first-class Agent identity with one authenticated API request.

curl -X POST https://postalzero.dev/api/v1/send/darwin \
  -H "Content-Type: application/json" \
  -H "X-Agent-Token: pz_agent_..." \
  --data '{
    "subject": "Task complete",
    "body": "The agent finished its work."
  }'

SecurityStatus