// scoped email for agents
Extrovert mints a persistent mailbox on a domain we own — sends and receives, with SPF, DKIM, and DMARC already correct. Each one lives behind a per-agent key that expires and revokes on its own.
# mint a real mailbox in one call
curl -X POST https://api.extrovert.dev/v1/inboxes \
-H "authorization: Bearer pk_agent_3kf9c2_…" \
-d '{"username":"agent7"}'
# ← 201 created
{
"address": "agent7@x4p.mszazu.com",
"status": "live"
}// hosted MCP — scoped key, never an org-wide one
tool: create_inbox {}
→ agent7@x4p.mszazu.com
tool: wait_for_email { from: "*stripe.com", timeout: 120 }
→ { code: "418302",
link: "https://…/verify" }box, _ := extrovert.CreateInbox(ctx, &extrovert.New{})
msg, _ := extrovert.WaitForEmail(ctx, box.Address,
extrovert.Match{From: "*stripe.com"})
fmt.Println(msg.OTP) // 418302The same one-call creation across curl, MCP, and Go.
// why extrovert
Owned domains, DNS authority, authenticated sending, and a real IMAP inbox — fused behind a per-agent key. Not an email wrapper. The gate.
// real mailboxes
Each call mints a live mailbox on a domain we run end-to-end — DNS, authenticated sending, and a full IMAP inbox. SPF, DKIM, and DMARC are already correct. It's the agent's to use for sign-ups, OTPs, replies, and outreach alike.
agent@x4p.mszazu.com · live in one POST // scoped identity
Issue an enrollment key that mints up to N mailboxes and nothing else. Set the per-mailbox send-rate limit on it — 75/24h by default, your call per token. Expires on its own, revokes in isolation, and writes a per-agent audit line for every action.
expires in 24h · 75 sends/24h · revokes instantly // stateful inbox
Not a webhook firehose to re-statefully reconstruct — an actual persistent IMAP mailbox with threading. Block on the next matching message and get the OTP code or verification link back as a structured result.
wait_for_email(from, match, timeout) → { code, link } // mcp-first
A hosted MCP server with create_inbox, send, threaded reply, read, search, and the standout blocking wait_for_email. Each sub-agent provisions its own scoped inbox. Connect over a scoped key — never an org-wide one.
hosted + stdio · scoped-key auth // one record
Delegate a subdomain with a single NS record and our authoritative DNS serves MX, SPF, DKIM, and DMARC — and rotates DKIM for you. Or let us register and wire a fresh domain for you. No 48-hour DNS slog.
mail.theirco.com NS ns1.extrovert.dev // agent payments
Paid actions answer with HTTP 402; the agent signs an EIP-3009 transfer and retries — no human billing account in the loop. Provisioning is gated on settlement, which doubles as the economic answer to spam.
402 → sign → settle → provision · Base Sepolia // vs agentmail
AgentMail set the bar on speed. Extrovert wins on the 7 things that actually make a mailbox yours.
Competitive states summarized from public docs and market research, June 2026. A Extrovert inbox is a real mailbox the agent controls — transactional, agentic, and outreach mail alike — with a per-mailbox 75/24h send-rate limit you set per token.
// how it works
Three moves from nothing to a live, sending, receiving mailbox — with a per-agent audit line behind every one of them.
From the console or one admin call, mint a key scoped to a few mailboxes that expires on its own. The secret is shown once.
pk_enroll_3kf9c2_… · 5 mailboxes · 24h POST /v1/enroll trades the enrollment key for a per-agent key — idempotent on the agent handle, scoped to exactly what it needs.
POST /v1/enroll → { agentKey, agentId } One POST creates a live mailbox with sending already authenticated. Send, receive, and block on wait_for_email for the reply.
POST /v1/inboxes → agent7@x4p.mszazu.com // pricing
The whole V1 platform, no card, while we warm it up with you. Billing is wired later — you set the per-mailbox send-rate limit, we enforce it per mailbox.
while we're in early access
Everything in V1, no card. The whole platform, on the house, while we warm it up with you.
Billing wired later. You set the per-mailbox send-rate limit; we enforce it.
Get an enrollment keyBase Sepolia · no signup
Pay per mailbox the agent-native way today, with testnet funds — the same rail real billing rides on later.
ops-assisted upsell
Cohorts on isolated spring* domains, or your own registered-and-wired domain. Real domain-level separation, not an IP pool.
// open the gate
Issue a scoped enrollment key, redeem it, and your agent has a real mailbox in the next call. Free while we're in early access.