MailBridgeAPI
MailBridgeAPI provides a programmable email API that connects to SMTP and IMAP mailboxes, offering endpoints to send, receive, search and manage email without exposing mailbox passwords. It supports integrations with Gmail, Microsoft 365, Yahoo, Zoho, Apple iCloud, and custom mail servers, featuring AI-powered auto-reply, mobile app control, and detailed analytics. Developers can quickly test connections via a free trial, and companies gain secure, auditable email handling for critical communications.
Real signal across most facets with visible, nameable gaps — the contract exists but is thin, or the portal is good while governance and commercial terms are absent.
API Evangelist profiles MailBridgeAPI the way a machine reads it — 14 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 — MailBridgeAPI scores 42.3/100 (developing), with a separate agent-readiness read of 31/100 (agent ready). 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 2026-10-31 · rubric v0.25.0
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<!-- Kin Score · API Evangelist -->
<a href="https://providers.apievangelist.com/providers/mailbridgeapi/"
title="MailBridgeAPI on API Evangelist — API profile and Kin Score">
<img src="https://apis.io/badge/mailbridgeapi.svg"
alt="MailBridgeAPI Kin Score — API readiness rating by API Evangelist" width="150" height="150" loading="lazy">
</a>[](https://providers.apievangelist.com/providers/mailbridgeapi/)<!-- Kin Score · API Evangelist -->
<a href="https://providers.apievangelist.com/providers/mailbridgeapi/"
title="MailBridgeAPI on API Evangelist — API profile and Kin Score">
<img src="https://apis.io/badge/mailbridgeapi/card.svg"
alt="MailBridgeAPI 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 MailBridgeAPI
Each block below is one kind of artifact we hold for MailBridgeAPI. 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 7
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.
MailBridgeAPI Email API
Turn your own mailbox into a secure email API.
MailBridgeAPI Activity API
Search messages and build delivery or usage reporting.
MailBridgeAPI Compliance API
Read unsubscribe information for your own contact workflows.
MailBridgeAPI Mailbox API
Inspect mailbox readiness and operational health.
MailBridgeAPI Receiving API
Read incoming messages from the mailbox or the normalized received-message API.
MailBridgeAPI Sending API
Send and validate email through the selected mailbox.
MailBridgeAPI Service API
Public service availability.
Scroll within the panel for all 7 ·
Agent Skills 1
An agent skill packages the how-to for driving these APIs from an assistant — the prompts, the sequence, the guardrails — so the knowledge to use the API travels with it.
Packaged agent skills for driving this provider's APIs from an AI assistant.
mailbridgeapi-send-email
AGENT SKILLSemantic 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.
Mailbridgeapi 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.
MailBridgeAPI API Rules
SPECTRALSecurity Posture 3
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.
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 MailBridgeAPI — 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 2
Portal, sign-up, and the first successful call
Documentation 1
Reference material describing how the API behaves
Agent Surfaces 4
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 6
Pagination, idempotency, versioning, errors, and events
Access & Security 5
Authentication, authorization, and security posture
Commercial 3
Pricing, plans, and the legal terms of use
Company 1
The organization behind the API
Other 1
Properties that don't map to a standard resource type
← All providers · Data indexed from github.com/api-evangelist/mailbridgeapi · machine-readable index on apis.io
This is an independent, third-party profile of MailBridgeAPI, 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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