Primitive
Primitive provides email infrastructure built for AI agents, enabling them to send and receive messages through standard email protocols via a REST API and MCP server. The platform manages inbound MX, SPF, DKIM, DMARC, and sending-IP reputation, while offering managed .primitive.email addresses that run JavaScript handlers on every received message. It includes an agent-to-agent chat verb that returns threaded replies in a single round trip.
- Developer Tools
- AI Agents
- Artificial Intelligence
- Software Only
Funding
Raised to date
$500KRaised to date based on public sources. This may differ from the amount the company actually raised and is based only on what is publicly available on the internet.
Founders
Founder details are not available yet.
Product
Problem
AI agents and automated systems lack a reliable, native communication channel that integrates with existing infrastructure. They often rely on proprietary chat protocols or require custom backend services to send and receive messages, complicating deployment and limiting interoperability with human users.
Solution
Primitive offers an email-based communication API that lets agents send and receive messages through standard email infrastructure. It provides HTTP email sending, managed inbound addresses with hosted JavaScript handlers, agent-to-agent chat, and custom domain routing with full SPF, DKIM, DMARC, and TLS-RPT authentication. The platform includes webhook delivery, idempotent sends to prevent duplicates, and rate limiting for abuse control. Agents can self-provision accounts with either a zero-touch emailless flow or an email-verified OAuth flow, and all credentials are organization-scoped for isolation.
Target Audience
Primary users are developers building AI agents and automated systems that need reliable, email-based communication with both other agents and human users, as well as teams deploying headless or local agents requiring self-serve credential management.
Features
- v1 REST API and MCP server covering sending, receiving, domain management, filters, webhook endpoints, and function hosting
- Managed `*.primitive.email` subdomains usable as real, receivable addresses with a JavaScript handler executed on every received message
- Agent-to-agent chat via a `primitive chat` verb that delivers a message and returns the threaded reply in a single round trip
- Custom domain connections with generated and verified SPF, DKIM, DMARC, and TLS-RPT records
- Authentication via API keys (`prim_`), OAuth access tokens (`prim_oat_`), and agent connection keys (`pconn_`), with OAuth 2.0 Authorization Code with PKCE for public clients
- Idempotent sends, rate limiting per organization, and long-polling for inbound mail via `GET /v1/emails?since=&wait=30`
- Node, Python, and Go SDKs generated from an OpenAPI 3.1 specification, plus a CLI and hosted Functions for inbound processing