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Postfleet

Parses inbound email into typed JSON for AI agents, screening out hidden text and prompt-injection payloads first.

AgentsAPIFor developersFree tier
postfleet.ai ↗
At a glanceswept 2026-10-12

not read yet

Use

For
Developers and teams whose AI agents must read inbound email without exposure to prompt injection
Price
Free plan · From $7/mopricing page, read 2026-10-13 ↗
Trial & discounts
30-day money backpricing page ↗
Activity
Actively maintainedsite updated 3 weeks ago
Company
Domain since 2026domain registered
Runs as
API
AlternativesSet it up for my teamIs Postfleet yours? Claim the card →
What people do with itread off postfleet.ai on 2026-10-13
  • Turn inbound invoices into typed JSON fields
  • Screen inbound email for hidden prompt injection before the agent reads it
  • Let an agent block until a reply arrives
The companyeach fact with its source · read 2026-10-13
  • Domain since2026domain registered
Your datawhat they publish, each line with its page · read 2026-10-13

“We do not train models on your mail.”

privacy policy ↗

These are Postfleet's own statements, read from its pages. We did not audit them. A line that is missing was not found on the pages we read; it does not mean the practice is absent.

How a program reaches itfound, not claimed · read 2026-10-13
  • MCP serverai.postfleet/postfleetverified in the MCP registry
  • Stateanswers, requires sign-inchecked 2026-10-13
  • Address to connectapi.postfleet.ai/api/mcp
  • OpenAPI spec10 pathsthe spec ↗

MCP server details →

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.

Alternatives in Agentsby use, among tools still maintained

Figure and bar: visits/mo, estimate · year: online since

All Agents tools →

Questions this page answers
  • What is Postfleet?

    Parses inbound email into typed JSON for AI agents, screening out hidden text and prompt-injection payloads first. It is listed in the Atlas under Agents.

  • Who is Postfleet for?

    Developers and teams whose AI agents must read inbound email without exposure to prompt injection

  • How much does Postfleet cost?

    Postfleet has a free plan; paid plans start at $7/mo, per its pricing page on 2026-10-13.

  • Is Postfleet free?

    Yes, Postfleet has a free plan, per its pricing page on 2026-10-13.

  • Do people use Postfleet?

    Little sign of use.

  • Is Postfleet still maintained?

    Actively maintained: site updated 3 weeks ago.

  • Does Postfleet train AI on your data?

    No, per its privacy policy (2026-10-13): “We do not train models on your mail.”

  • Is Postfleet safe?

    We do not audit vendors. What Postfleet publishes, read 2026-10-13: on training with your data, “We do not train models on your mail.”.

  • What are alternatives to Postfleet?

    In Agents, by use: AI Email API & Infrastructure for AI Agents, Korely, VulpineOS, OpenMail, Cloudflare, Claude.

Not quite it? Describe the job

beta

Five tools from the Atlas that fit it, each judged against what you wrote.

How we read a tool

No votes, no reviews, no vendor claims. Every week a crawler reads each tool's own site and a few public registries, and the words on the card are bands over what it read.

  • Use: visits to the site (estimated), installs from npm and PyPI, presence in Chrome's usage report.
  • Activity: the newest release on GitHub, npm or PyPI; the newest dated page on the site; open roles on a public jobs board.
  • Price: the vendor's own pricing page, read with the date. A figure is printed only when it is on that page.
  • The line and the use cases are written by us from the homepage, one tool at a time, and refused when they repeat the vendor's marketing.

How AI assistants read each site — the reading vendors ask us about — is on each tool's own visibility page.