Envloped

Envloped provides email infrastructure for the AI agent economy, offering native Model Context Protocol (MCP) support, agent‑first APIs, and intelligent workflows for autonomous systems. It enables transactional and marketing email capabilities with flexible pricing and developer tools.

Envloped is listed with 1 API on the APIs.io network. Tagged areas include Email, AI Agents, MCP, Email API, and Developer Platform.

The Envloped catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

Envloped’s developer surface includes CLI, authentication, documentation, pricing, getting-started guide, and 15 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

34.9/100 thin Agent 28/100 agent aware Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

AccessPaid

1 API

Email AI Agents MCP Email API Developer Platform

Kin Score

Kin Score How this is scored →
scored 2026-11-13 · rubric v0.28.0

Composite quality — 34.9/100 · thin

Contract Quality 5.6 / 21

Developer Ergonomics 8.5 / 17

Access Clarity 7.2 / 17

Operational Transparency 0.0 / 11

Contract Governance 2.2 / 10

Discoverability 5.6 / 9

Regulatory Posture 2.8 / 15

Agent readiness — 28/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 6 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 6 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship Ask about this →
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author Ask about this →
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented) Ask about this →
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes Ask about this →
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0 Ask about this →
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented) Ask about this →

9 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 26.3 — up to +18.4 composite points Ask about this →
Operational Transparency scores 0.0 — up to +13.0 composite points Ask about this →
Access Clarity scores 42.6 — up to +11.5 composite points Ask about this →

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Not sure how this applies to your stack? Ask about any one item. Kin Lane reads every question, looks at your profile and your situation, and replies with what a fix would take — scoped to that one area, priced up front, yours whether you ship it or not. Ask a question →

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/envloped-com/apis.yml: open an issue on github.com/api-evangelist/envloped-com to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Standards implemented 1

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

Dynamic Client Registration

measured — observed by APIs.io (published)

APIs 1

Individual APIs this provider publishes, each with its own machine-readable definition.

Envloped API

Envloped API as documented publicly: 33 operations. Contract generated from the documentation by API Evangelist (2026-11-07); not the provider's own document.

Envloped API pricing

Prices published by Envloped, read 2026-11-07 from envloped.com/pricing.

Plan	Price
Transactional	$10/mo
Marketing	$29/mo

Plan details, limits and sources →

Pricing Plans 1

Published pricing tiers and plan structures.

Envloped Plans Pricing

2 plans

PLANS

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Envloped Com Context

35 classes · 51 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs. Counts are the severity each rule declares, not results of running them.

Envloped API Rules

44 rules · 42 error-severity 1 warn-severity 1 info-severity

SPECTRAL

JSON Schema 6

Standalone JSON Schema definitions for this provider's data models.

GetV1ListsIdContactsResponse

4 properties

JSON SCHEMA

PatchV1ContactsIdRequest

5 properties

JSON SCHEMA

PostV1ContactsBatchRequest

2 properties

JSON SCHEMA

PostV1ContactsResponse

6 properties

JSON SCHEMA

PostV1ListsResponse

1 properties

JSON SCHEMA

PostV1SegmentsRequest

2 properties

JSON SCHEMA

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Envloped Authentication

1 scheme

SECURITY

Envloped Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 2

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

DeveloperPortal

DeveloperPortal

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

WellKnown

WellKnown

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

DataModel

Conformance

Build 1

SDKs, sample code, and the tooling you integrate with

CLI

CLI

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Commercial 4

Pricing, plans, and the legal terms of use

Plans

TermsOfService

PrivacyPolicy

Pricing

Company 1

The organization behind the API

Website

Website

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: envloped-com
name: Envloped
accessModel:
  pricing: paid
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Paid
  confidence: medium
  probe_state: unreadable
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-13'
  method: derived
image: https://envloped.com/og-image.png
description: Envloped provides email infrastructure for the AI agent economy, offering native Model Context Protocol (MCP)
  support, agent‑first APIs, and intelligent workflows for autonomous systems. It enables transactional and marketing email
  capabilities with flexible pricing and developer tools.
url: https://artifacts.apis.io/envloped-com/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-11-07 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-11-06'
modified: '2026-11-06'
tags:
- Email
- AI Agents
- MCP
- Email API
- Developer Platform
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Plans
  url: plans/envloped-com-plans-pricing.yml
- type: Spectral
  url: rules/envloped-com-rules.yml
- type: JSONLD
  url: json-ld/envloped-com-context.jsonld
- type: Vocabulary
  url: vocabulary/envloped-com-vocabulary.yml
- type: DataModel
  url: data-model/envloped-com-data-model.yml
- type: CLI
  url: cli/envloped-com-cli.yml
- type: DomainSecurity
  url: security/envloped-com-domain-security.yml
- type: Authentication
  url: authentication/envloped-com-authentication.yml
- type: Conformance
  url: conformance/envloped-com-conformance.yml
- type: LLMsTxt
  url: llms/envloped-com-llms.txt
- type: WellKnown
  url: well-known/envloped-com-well-known.yml
- type: Hosts
  url: hosts/envloped-com-hosts.yml
- type: Vendors
  url: vendors/envloped-com-vendors.yml
- type: TermsOfService
  url: https://envloped.com/terms
- type: PrivacyPolicy
  url: https://envloped.com/privacy
- type: Website
  url: https://envloped.com/
- type: Documentation
  url: https://envloped.com/docs
- type: Pricing
  url: https://envloped.com/pricing
- type: GettingStarted
  url: https://envloped.com/docs
- type: DeveloperPortal
  url: https://envloped.com/docs
apis:
- aid: envloped-com:envloped-com-api
  name: Envloped API
  description: 'Envloped API as documented publicly: 33 operations. Contract generated from the documentation by API Evangelist
    (2026-11-07); not the provider''s own document.'
  humanURL: https://envloped.com/docs
  baseURL: https://api.envloped.com
  properties:
  - type: OpenAPI
    url: openapi/_ae-authored/envloped-com-openapi-generated.yml
    x-provenance: generated
  - type: JSONSchema
    url: json-schema/envloped-com-patch-v1-contacts-id-request-schema.json
  - type: JSONSchema
    url: json-schema/envloped-com-post-v1-contacts-batch-request-schema.json
  - type: JSONSchema
    url: json-schema/envloped-com-post-v1-contacts-response-schema.json
  - type: JSONSchema
    url: json-schema/envloped-com-get-v1-lists-id-contacts-response-schema.json
  - type: JSONSchema
    url: json-schema/envloped-com-post-v1-segments-request-schema.json
  - type: JSONSchema
    url: json-schema/envloped-com-post-v1-lists-response-schema.json
x-coverage:
  state: unreadable
  reason: no-machine-readable-spec
  detail: Docs are available at https://envloped.com/docs but no OpenAPI, AsyncAPI, GraphQL, gRPC or WSDL contract could be
    found.
  evidence:
  - url: https://api.envloped.com/openapi.json
    status: 404
  - url: https://api.envloped.com/openapi.yaml
    status: 404
  checked: '2026-11-07'
x-enrichment:
  date: '2026-11-07'
  status: enriched
  artifacts_added: 28
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

Envloped API — frequently asked questions

Does Envloped have an API?

Yes. APIs.io lists 1 API from Envloped, including Envloped API.

Is there an OpenAPI specification for the Envloped API?

Yes. APIs.io indexes 1 OpenAPI specification for Envloped, each linked for download from this page.

How do I authenticate with the Envloped API?

Envloped documents its authentication (1 scheme). The details are profiled on APIs.io as Envloped Authentication.

How much does the Envloped API cost?

Envloped publishes its prices; its Transactional plan is $10/mo as of 2026-11-07. APIs.io lists 2 pricing plans for Envloped, with each plan's price, limits and inclusions under Pricing on this page.

Is the Envloped API ready for AI agents?

Envloped has a Kin Score of 34.9 out of 100 (thin) and an Agent Readiness score of 28.1 (agent-aware), scored by API Evangelist on 2026-11-13.

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