Deadsimple Email
Dead Simple Email provides an Email API designed for AI agents, offering programmable inboxes, sending and receiving messages, and real‑time webhooks. It eliminates Gmail suspensions, SMTP complexity, and per‑seat pricing, with plans starting at 100 inboxes for $29 per month. The service targets developers building autonomous agents that need reliable email handling without traditional email infrastructure headaches.
Solid contracts, transparent operations, and an easy start — typically complete on four or five facets with one clear soft spot.
API Evangelist profiles Deadsimple Email the way a machine reads it — 38 machine-readable artifacts across 1 API, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.
Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — Deadsimple Email scores 56.9/100 (strong), with a separate agent-readiness read of 54/100 (agent native). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
Kin Score
This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance. Every facet and dimension name is a link: it opens that measurement's page on APIs.io, where the rating runs across the whole catalog — the exact checks that feed it, how every profiled provider distributes on it, and who is at the top of it.
Kin Score
How this is scored →scored 2026-11-06 · rubric v0.27.0
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title="Deadsimple Email on API Evangelist — API profile and Kin Score">
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title="Deadsimple Email on API Evangelist — API profile and Kin Score">
<img src="https://apis.io/badge/deadsimple-email/card.svg"
alt="Deadsimple Email Kin Score — API readiness rating by API Evangelist" width="340" height="120" loading="lazy">
</a>More shapes, themes and sizes → · Score as JSON · How badges work
How we profile Deadsimple Email
Each block below is one kind of artifact we hold for Deadsimple Email. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.
APIs 24
Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.
Individual APIs this provider publishes, each with its own machine-readable definition.
Deadsimple Email Aliases API
The Aliases API from Deadsimple Email — 2 operation(s) for aliases.
Deadsimple Email API Keys API
The API Keys API from Deadsimple Email — 2 operation(s) for api keys.
Deadsimple Email Auth API
The Auth API from Deadsimple Email — 10 operation(s) for auth.
Deadsimple Email Calendar API
The Calendar API from Deadsimple Email — 8 operation(s) for calendar.
Deadsimple Email Contacts API
The Contacts API from Deadsimple Email — 2 operation(s) for contacts.
Deadsimple Email Domains API
The Domains API from Deadsimple Email — 6 operation(s) for domains.
Deadsimple Email Drafts API
The Drafts API from Deadsimple Email — 3 operation(s) for drafts.
Deadsimple Email Events API
The Events API from Deadsimple Email — 2 operation(s) for events.
Deadsimple Email Filters API
The Filters API from Deadsimple Email — 4 operation(s) for filters.
Deadsimple Email Guardrails API
The Guardrails API from Deadsimple Email — 1 operation(s) for guardrails.
Deadsimple Email Identity API
The Identity API from Deadsimple Email — 8 operation(s) for identity.
Deadsimple Email Identity Provider API
The Identity Provider API from Deadsimple Email — 7 operation(s) for identity provider.
Deadsimple Email Inboxes API
The Inboxes API from Deadsimple Email — 4 operation(s) for inboxes.
Deadsimple Email Messages API
The Messages API from Deadsimple Email — 13 operation(s) for messages.
Deadsimple Email OAuth API
The OAuth API from Deadsimple Email — 6 operation(s) for oauth.
Deadsimple Email Suppressions API
The Suppressions API from Deadsimple Email — 2 operation(s) for suppressions.
Deadsimple Email System API
The System API from Deadsimple Email — 1 operation(s) for system.
Deadsimple Email Team API
The Team API from Deadsimple Email — 4 operation(s) for team.
Deadsimple Email Templates API
The Templates API from Deadsimple Email — 2 operation(s) for templates.
Deadsimple Email Threads API
The Threads API from Deadsimple Email — 4 operation(s) for threads.
Deadsimple Email Tracking API
The Tracking API from Deadsimple Email — 3 operation(s) for tracking.
Deadsimple Email Usage API
The Usage API from Deadsimple Email — 3 operation(s) for usage.
Deadsimple Email Webhooks API
The Webhooks API from Deadsimple Email — 10 operation(s) for webhooks.
Deadsimple Email Workspaces API
The Workspaces API from Deadsimple Email — 2 operation(s) for workspaces.
Scroll within the panel for all 24 ·
Pricing Plans 1
Pricing is part of the interface. Machine-readable plans tell you what a tier costs and includes before you commit — one of the things the Kin Score reads for access clarity — renamed from commercial clarity in rubric 0.12, because a free statutory interface has access terms and no commercial ones.
Published pricing tiers and plan structures.
Event Specifications 1
Not every API is request/response. AsyncAPI describes the event-driven and streaming side — the webhooks and channels — so the asynchronous half of the interface is documented the same way the synchronous half is.
AsyncAPI definitions for this provider's event-driven and streaming APIs.
Deadsimple Email Webhooks
ASYNCAPISemantic Vocabularies 1
JSON-LD contexts give the data shared meaning across APIs. We profile them because semantics are what let a machine reconcile 'customer' here with 'customer' somewhere else.
JSON-LD contexts and semantic vocabularies used across these APIs.
Deadsimple Email Context
JSON-LDSpectral Rules 1
Governance rulesets we run against this provider's specs — the automated checks behind parts of the score. Profiling them makes the quality bar explicit and re-runnable, not a matter of opinion.
Deadsimple Email API Rules
SPECTRALJSON Schema 6
Standalone JSON Schema definitions describe the data models behind the API. We profile them so the shapes are validatable on their own — useful long after a single request is forgotten.
Standalone JSON Schema definitions for this provider's data models.
CalendarEventInput
JSON SCHEMACalendarEvent
JSON SCHEMACalendarInvite
JSON SCHEMAIdentityClaims
JSON SCHEMAIdentityClientRegistration
JSON SCHEMAWebhook
JSON SCHEMASecurity Posture 2
Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Scopes 1
OAuth scopes are the vocabulary of least-privilege access. Profiling them shows exactly what an integration — or an agent acting on a user's behalf — is allowed to do.
OAuth scopes governing access to this provider's APIs.
Agentic Access 1
An x-agentic-access contract marks which operations are safe for an agent to run on its own and which need a human in the loop. It is the difference between an API an agent can use and one it can use safely.
Recommended x-agentic-access execution contracts for AI agents.
Resources
Every other property we hold for Deadsimple Email — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.
Get Started 3
Portal, sign-up, and the first successful call
Documentation 2
Reference material describing how the API behaves
Agent Surfaces 3
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 9
Pagination, idempotency, versioning, errors, and events
Scroll within the panel for all 9 ·
Build 3
SDKs, sample code, and the tooling you integrate with
Access & Security 4
Authentication, authorization, and security posture
Commercial 4
Pricing, plans, and the legal terms of use
Company 2
The organization behind the API
Other 2
Properties that don't map to a standard resource type
← All providers · Data indexed from github.com/api-evangelist/deadsimple-email · machine-readable index on apis.io
This is an independent, third-party profile of Deadsimple Email, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.
The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.
Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.
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