Install Jentic One Beta

Connect the MailGlyph API to your agent

Jentic One is a self-hosted execution layer for AI agents. It lets your agent call the MailGlyph API, or any other public or private API you need. You set the rules, the agent never sees your credentials, and every call is logged.

Two steps, two machines. Install the instance in a safe environment, then register your agent from wherever it runs.

Step 1: Jentic One Host machine

# On the machine that will host your Jentic One instance:
curl -fsSL "https://jentic.com/install.sh?src=apis&api=%2Fapis%2Fmailglyph.com%2Fmailglyph" | sh

Step 2: Agent machine

# On the machine where your agent runs (keep this separate from the instance):
curl -fsSL "https://jentic.com/install.sh?src=apis&api=%2Fapis%2Fmailglyph.com%2Fmailglyph" | sh
jentic register       # connects your agent to your Jentic One instance

Jentic One is in public beta. The setup above keeps your agent separate from the instance, which is what you want before using real credentials: an agent running as the same OS user as Jentic One can read its stored keys directly. Just evaluating? A single local install is fine to start. See the secure deployment guide for the tiers.

Capabilities

What an agent can do with MailGlyph API.

Send a transactional email to a single recipient with a stored template or inline content

Create and schedule marketing campaigns, then read their delivery and open statistics

Validate a single email address in real time and run bulk verification jobs against uploaded lists

Group contacts into segments and add or remove members for targeted sends

GET STARTED

Start building with MailGlyph API

Explore with Jentic One

View OpenAPI Document

Use Cases

Patterns agents use MailGlyph API for, with concrete tasks.

★ AI Agent Email Automation

Connect an AI agent to MailGlyph so it can send transactional messages, launch campaigns, and validate addresses on demand. The agent discovers the send and campaign operations through Jentic, stores the MailGlyph key once, and triggers email without hand-written SDK wiring. Delivery events flow back so the agent can confirm each message landed.

Send a transactional welcome email to a new contact using a stored template and confirm the delivery event was recorded

Transactional Email Delivery

Send password resets, receipts, and notifications straight from your application. MailGlyph accepts a template id or inline HTML, records each delivery event, and exposes event names for filtering. Public tracking keys let client-side code report engagement without exposing the secret key.

Send a receipt email to a customer address and poll the events list until the delivery event appears

Email List Verification

Clean large mailing lists before a campaign to cut bounces. MailGlyph validates single addresses in real time and runs bulk verification jobs that consume prepaid credits, with a downloadable results file and a credit ledger for tracking usage. A paused job can be continued to finish an oversized list.

Create a bulk email validation job for an uploaded address list and download the results when the job completes

Campaign Management

Build, test, and schedule marketing campaigns to targeted segments. MailGlyph sends test copies before launch, schedules or cancels a send, and reports per-campaign statistics so you can measure open and delivery performance across segments.

Create a campaign targeting a contact segment, send a test email, then schedule the campaign and retrieve its stats

Key Endpoints

48 endpoints — the mailglyph api sends transactional and marketing email, runs multi-step campaigns, and validates recipient addresses before delivery.

METHOD

PATH

DESCRIPTION

POST

/v1/send

Send a transactional email

POST

/campaigns

Create a campaign

POST

/campaigns/{id}/send

Send or schedule a campaign

POST

/v1/verify

Validate a single email address

POST

/v1/verify/files

Create a bulk email validation job

GET

/contacts

List contacts

POST

/segments/{id}/members

Add members to a segment

POST

/v1/send

Send a transactional email

POST

/campaigns

Create a campaign

POST

/campaigns/{id}/send

Send or schedule a campaign

POST

/v1/verify

Validate a single email address

POST

/v1/verify/files

Create a bulk email validation job

GET

/contacts

List contacts

POST

/segments/{id}/members

Add members to a segment

Why Jentic?

What agents get from Jentic-routed access to this vendor.

Setup

Wiring MailGlyph by hand means learning its bearer-token auth, separating secret from public keys, and polling delivery events yourself. Through Jentic you install once, import MailGlyph from the API Directory, store the key, and your agent calls the operation it needs.

Permission scoping

You decide which MailGlyph operations your agent may call. A rule can grant the transactional send and address-validation operations while withholding domain deletion and contact removal, and because the recipient travels in the request body, the rule bounds operations rather than a single address.

Credential isolation

Your MailGlyph API key is stored once, encrypted, by your own Jentic One instance and injected at execution time. It never enters the agent's prompt, logs, or context.

Intent-based discovery

Agents search Jentic by intent such as 'send a transactional email' or 'validate an email address', and Jentic returns the matching MailGlyph operation with its input schema so the agent calls the right endpoint without reading the reference docs.

FAQs

Specific to using MailGlyph API through Jentic.

What authentication does the MailGlyph API use?

The MailGlyph API authenticates with a bearer token in the Authorization header, per its OpenAPI spec. Secret keys authenticate server-side requests, while public keys are limited to the client-side event tracking endpoint. Through Jentic your MailGlyph key is stored encrypted by your own Jentic One instance and injected when a call runs, so it never enters the agent's prompt or logs.

Can I validate email addresses with the MailGlyph API?

Yes. The API validates a single address in real time and also runs bulk validation jobs that check an uploaded list against your prepaid verification credits. You can download the results file and review a credit ledger to track usage.

What are the rate limits for the MailGlyph API?

The OpenAPI spec does not publish specific rate limits. Check the MailGlyph documentation at https://docs.mailglyph.com for current limits, and design your agent to handle throttling responses gracefully.

How do I send email with the MailGlyph API through Jentic?

Search Jentic for an intent like 'send a transactional email', and it returns the MailGlyph send operation with its input schema. Import the connector once, store your key, and your agent posts to the send operation without hand-written HTTP code. To run it on your own infrastructure, install Jentic One from its GitHub repo.

Is there a MailGlyph MCP server?

You don't need an MCP server to give your agent MailGlyph. Jentic connects it directly from the Jentic API Directory: import the API, store your key once, and your agent calls the send, campaign, and validation operations. Operations are discovered on demand, so no extra tool definitions are loaded into the agent's context.

Can I limit what my agent is allowed to do with the MailGlyph API?

Yes. You choose the operations the agent may call, so a rule can allow just the send and validation operations while leaving campaign deletion or contact removal out unless you add them. MailGlyph carries the recipient inside the request body, so a rule bounds which operations run rather than which individual contact is emailed, and every call is logged.

MailGlyph API

AI ReadinessAI-Aware (B-)62/100

See full scorecard

Community OpenAPI document · agent-readyCommunicationsEmail Deliverybearer48 EndpointsREST

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For Agents

Send transactional and marketing email, run campaigns, validate addresses, and organize contacts, segments, and templates through the MailGlyph API.

Use for: I want to send a transactional email with a template, Send a marketing campaign to a contact segment, Validate a batch of email addresses before a send, Check the delivery stats for a campaign

Not supported: Does not handle SMS, push notifications, or voice messaging. Use it for email sending, campaigns, and address validation only.

The MailGlyph API sends transactional and marketing email, runs multi-step campaigns, and validates recipient addresses before delivery. It stores contacts, segments, and reusable templates, drives automation workflows, and reports delivery events and per-campaign statistics for every send. Bulk verification jobs check large address lists against prepaid verification credits so lists stay clean before a launch.

Jentic One on Github View OpenAPI Document

Show dimension breakdown

Foundational Compliance

Base layer of spec validity and structural soundness.

Grade: CSignals: 4

95%

Lint Results

Aggregated quality score from linter diagnostics, weighted by severity.

100%

Resolution Completeness

Percentage of `$ref` references that resolve successfully.

Specification Validity

Checks whether the API description parses successfully and conforms to its declared specification (e.g., OpenAPI).

21%

Structural Integrity

Structural correctness score based on schema issues using logarithmic dampening.

Developer Experience & Jentic Compatibility

Clarity, completeness, and ingestion readiness for developers and tooling.

Grade: C+Signals: 4

Example Density

How richly the API is illustrated with examples.

84%

Example Validity

Percentage of examples that conform to their schemas.

43%

Response Coverage

Percentage of operations with complete response definitions (success, client error, server error).

100%

Tooling Readiness

Health of API ingestion, bundling, and resolution within Jentic pipelines.

AI-Readiness & Agent Experience

Semantic breadth, depth, and agent comprehension for AI systems.

Grade: C-Signals: 4

37%

Description Coverage

Coverage of descriptions across API elements.

Error Standardization

Coverage of RFC 9457 Problem Details for error responses.

100%

OperationId Quality

Coverage, uniqueness, and casing consistency of operationIds for AI inference.

70%

Summary Coverage

Coverage of summaries across operations/tags/info.

Agent Usability

Functional utility, complexity comfort, and AI orchestration readiness.

Grade: A+Signals: 1

94%

Complexity Comfort

Agent comfort level based on API operational and structural complexity.

Security

Trust, risk posture, and security compliance.

Grade: B-Signals: 1

60%

Authentication Strength

Average quality of security schemes based on authentication method strength (weakest link for OAuth2).

AI Discoverability

Findability, semantic richness, and reasoning readiness.

Grade: A-Signals: 1

71%

Descriptive Richness

Clarity and depth of descriptions across API elements.

Connect the MailGlyph API to your agent

Capabilities

Start building with MailGlyph API

Use Cases

Key Endpoints

Why Jentic?

Related APIs

FAQs

MailGlyph API

Jentic AI Readiness Score

MailGlyph API

Foundational Compliance

Lint Results

Resolution Completeness

Specification Validity

Structural Integrity

Developer Experience & Jentic Compatibility

Example Density

Example Validity

Response Coverage

Tooling Readiness

AI-Readiness & Agent Experience

Description Coverage

Error Standardization

OperationId Quality

Summary Coverage

Agent Usability

Complexity Comfort

Security

Authentication Strength

AI Discoverability

Descriptive Richness