mailprobe-dev

MailProbe.dev provides a real-time email verification API that checks the deliverability of email addresses, detects disposable, role-based, and typo-squatted emails. It offers developers a simple RESTful interface to validate user inputs, improve inbox placement, and reduce bounce rates for transactional communications. The service includes detailed response codes, confidence scores, and optional bulk verification, supporting integration across web, mobile, and enterprise applications.

mailprobe-dev publishes 2 API contracts indexed on the APIs.io network: Account API and Verification API. Tagged areas include Company, Email Verification, API, Real-time, and Developer Tools.

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

mailprobe-dev’s developer surface includes authentication, pricing, engineering blog, getting-started guide, API reference, and 17 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

50.6/100 developing Agent 34/100 agent ready Full breakdown ↓
scored 2026-10-31 · rubric v0.25.0 · Show this score on your site →

1 published contract 1 MCP Servers

Company Email VerificationAPIReal-timeDeveloper Tools

Kin Score

Kin Score How this is scored →
scored 2026-10-31 · rubric v0.25.0

Composite quality — 50.6/100 · developing

Contract Quality 14.0 / 21

Developer Ergonomics 5.7 / 17

Access Clarity 13.0 / 17

Operational Transparency 0.0 / 11

Contract Governance 3.6 / 10

Discoverability 5.5 / 9

Regulatory Posture 3.7 / 15

Agent readiness — 34/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 4 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

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):

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)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented)
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks
Documented Reversibility +6 pts — a reversal operation in the contract, graded up when a window is documented too

5 more unmet checks in the Agent Readiness table above.

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

Developer Ergonomics scores 33.3 — up to +13.3 composite points
Operational Transparency scores 0.0 — up to +13.0 composite points
Contract Quality scores 66.0 — up to +8.5 composite points

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.

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/mailprobe-dev/apis.yml: open an issue on github.com/api-evangelist/mailprobe-dev 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 →

APIs 2

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

mailprobe-dev Account API

Credit balance

mailprobe-dev Verification API

Email address verification

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

mailprobe-dev MCP Server

Remote MCP server at mailprobe.dev requiring an API key.

MCP SERVER

Pricing Plans 1

Published pricing tiers and plan structures.

Mailprobe Dev Plans Pricing

5 plans

PLANS

Semantic Vocabularies 1

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

Mailprobe Dev Context

5 classes · 22 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

mailprobe-dev API Rules

18 rules · 16 errors 1 warnings 1 info

SPECTRAL

JSON Schema 3

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

Credits

1 properties

JSON SCHEMA

VerifyEntry

0 properties

JSON SCHEMA

VerifyRequest

2 properties

JSON SCHEMA

Security Posture 2

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

Mailprobe Dev Authentication

1 scheme

SECURITY

Mailprobe Dev Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Mailprobe Dev Agentic Access

2 operations · 1 acting

AGENTIC

Resources

Get Started 2

Portal, sign-up, and the first successful call

Login

GettingStarted

GettingStarted

Documentation 1

Reference material describing how the API behaves

APIReference

APIReference

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

LLMsTxt

MCPServer

WellKnown

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

DataModel

ErrorCatalog

Conformance

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Commercial 4

Pricing, plans, and the legal terms of use

Plans

TermsOfService

PrivacyPolicy

Pricing

Company 2

The organization behind the API

Blog

Blog

Website

Website

Other 1

Properties that don't map to a standard resource type

Hosts

Hosts

Source (apis.yml)

aid: mailprobe-dev
name: mailprobe-dev
image: https://mailprobe.dev/og-image.png
description: MailProbe.dev provides a real-time email verification API that checks the deliverability of email addresses,
  detects disposable, role-based, and typo-squatted emails. It offers developers a simple RESTful interface to validate user
  inputs, improve inbox placement, and reduce bounce rates for transactional communications. The service includes detailed
  response codes, confidence scores, and optional bulk verification, supporting integration across web, mobile, and enterprise
  applications.
url: https://artifacts.apis.io/mailprobe-dev/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-31 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-10-30'
modified: '2026-10-30'
tags:
- Company
- Email Verification
- API
- Real-time
- Developer Tools
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: AgenticAccess
  url: agentic-access/mailprobe-dev-agentic-access.yml
- type: Plans
  url: plans/mailprobe-dev-plans-pricing.yml
- type: Spectral
  url: rules/mailprobe-dev-rules.yml
- type: JSONLD
  url: json-ld/mailprobe-dev-context.jsonld
- type: Vocabulary
  url: vocabulary/mailprobe-dev-vocabulary.yml
- type: DataModel
  url: data-model/mailprobe-dev-data-model.yml
- type: Authentication
  url: authentication/mailprobe-dev-authentication.yml
- type: ErrorCatalog
  url: errors/mailprobe-dev-problem-types.yml
- type: Conformance
  url: conformance/mailprobe-dev-conformance.yml
- type: LLMsTxt
  url: llms/mailprobe-dev-llms.txt
- type: MCPServer
  url: mcp/mailprobe-dev-mcp.yml
- type: WellKnown
  url: well-known/mailprobe-dev-well-known.yml
- type: Hosts
  url: hosts/mailprobe-dev-hosts.yml
- type: TermsOfService
  url: https://mailprobe.dev/terms/
- type: PrivacyPolicy
  url: https://mailprobe.dev/privacy/
- type: Pricing
  url: https://mailprobe.dev/pricing/
- type: Login
  url: https://mailprobe.dev/login/
- type: Blog
  url: https://mailprobe.dev/blog/
- type: GettingStarted
  url: https://mailprobe.dev/api-docs/#mcp
- type: APIReference
  url: https://mailprobe.dev/api-docs/
- type: DomainSecurity
  url: security/mailprobe-dev-domain-security.yml
- type: Website
  url: https://mailprobe.dev/
apis:
- aid: mailprobe-dev:mailprobe-dev-account-api
  name: mailprobe-dev Account API
  description: Credit balance
  humanURL: https://mailprobe.dev/api-docs/
  baseURL: https://mailprobe.dev
  tags:
  - Account
  properties:
  - type: OpenAPI
    url: openapi/mailprobe-dev-account-api-openapi.yml
  - type: JSONSchema
    url: json-schema/mailprobe-dev-verify-request-schema.json
  - type: JSONSchema
    url: json-schema/mailprobe-dev-verify-entry-schema.json
  - type: JSONSchema
    url: json-schema/mailprobe-dev-credits-schema.json
- aid: mailprobe-dev:mailprobe-dev-verification-api
  name: mailprobe-dev Verification API
  description: Email address verification
  humanURL: https://mailprobe.dev/api-docs/
  baseURL: https://mailprobe.dev
  tags:
  - Verification
  properties:
  - type: OpenAPI
    url: openapi/mailprobe-dev-verification-api-openapi.yml
  - type: JSONSchema
    url: json-schema/mailprobe-dev-verify-request-schema.json
  - type: JSONSchema
    url: json-schema/mailprobe-dev-verify-entry-schema.json
  - type: JSONSchema
    url: json-schema/mailprobe-dev-credits-schema.json
x-enrichment:
  date: '2026-10-31'
  status: enriched
  artifacts_added: 26
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

mailprobe-dev API — frequently asked questions

Does mailprobe-dev have an API?

Yes. APIs.io lists 2 APIs from mailprobe-dev, including mailprobe-dev Account API and mailprobe-dev Verification API.

Is there an OpenAPI specification for the mailprobe-dev API?

Yes. APIs.io indexes 2 OpenAPI specifications for mailprobe-dev, each linked for download from this page.

How do I authenticate with the mailprobe-dev API?

mailprobe-dev uses bearer-token authentication (1 scheme). The details are profiled on APIs.io as Mailprobe Dev Authentication.

How much does the mailprobe-dev API cost?

APIs.io lists 5 pricing plans for mailprobe-dev, with each plan's price, limits and inclusions under Pricing Plans on this page.

Does mailprobe-dev have an MCP server?

Yes. APIs.io lists 1 MCP server for mailprobe-dev: Remote MCP server at mailprobe.dev requiring an API key.

Is the mailprobe-dev API ready for AI agents?

mailprobe-dev has a Kin Score of 50.6 out of 100 (developing) and an Agent Readiness score of 34.4 (agent-ready), scored by API Evangelist on 2026-10-31.

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