Messente

Messente is an Estonian CPaaS provider of global messaging and user verification services. A single Omnimessage endpoint sends SMS, Viber, WhatsApp, and Telegram with an automatic fallback chain, backed by contacts and groups in the Phonebook, phone number (HLR) lookup, PIN-based number verification / 2FA, delivery reports, and messaging statistics over an HTTP Basic authenticated REST API at api.messente.com/v1.

Messente publishes 11 API contracts indexed on the APIs.io network, including Account Balance API, Blacklist API, Bulk Messaging API, and 8 more. Tagged areas include CPaaS, Messaging, SMS, Viber, and WhatsApp.

The Messente catalog on APIs.io includes 1 Spectral governance ruleset.

Messente’s developer surface includes authentication, documentation, engineering blog, and 10 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

28.8/100 thin ▬ flat Agent 21/100 agent aware Front door AI 1/6 silent Heartbeat 33/100 going silent saas Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

AccessEnterprise

1 published contract

CPaaS Messaging SMS Viber WhatsApp Verification 2FA

Kin Score

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

Composite quality — 28.8/100 · thin

Contract Quality 9.2 / 19

Developer Ergonomics 4.7 / 15

Access Clarity 2.2 / 15

Operational Transparency 1.2 / 10

Contract Governance 1.2 / 9

Discoverability 5.0 / 8

Regulatory Posture 1.4 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 21/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 6 / 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 7 / 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 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

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Telecommunications 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 applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% 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 →
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 →
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link Ask about this →
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document Ask about this →

8 more unmet checks in the Agent Readiness table above.

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

Access Clarity scores 14.9 — up to +17.0 composite points Ask about this →
Developer Ergonomics scores 31.0 — up to +13.8 composite points Ask about this →
Contract Quality scores 48.9 — up to +12.8 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/messente/apis.yml: open an issue on github.com/api-evangelist/messente 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.

OpenAPI

measured — observed by APIs.io (published)

APIs 11

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

Messente Account Balance API

Retrieve the current account balance.

Messente Blacklist API

Manage the phone number blacklist.

Messente Bulk Messaging API

Send an Omnimessage to many recipients in a single request.

Messente Contacts API

Manage contacts in the Messente Phonebook.

Messente Delivery Report API

Retrieve delivery status for a sent Omnimessage.

Messente Groups API

Manage contact groups in the Messente Phonebook.

Messente Number Lookup API

Fetch HLR / network information about phone numbers.

Messente Number Verification API

PIN-based phone number verification (2FA / one-time passwords).

Messente Omnimessage API

Send SMS, Viber, WhatsApp, and Telegram messages with an automatic fallback chain.

Messente Pricing API

Retrieve account pricelist and per-country prices.

Messente Statistics API

Request messaging statistics reports by country.

Scroll for all 11

Open Collections 12

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

Messente Account Balance API

OPEN COLLECTION

Messente Account Balance Blacklist API

OPEN COLLECTION

Messente Account Balance Bulk Messaging API

OPEN COLLECTION

Messente Account Balance Contacts API

OPEN COLLECTION

Messente Account Balance Delivery Report API

OPEN COLLECTION

Messente Account Balance Groups API

OPEN COLLECTION

Messente Account Balance Number Lookup API

OPEN COLLECTION

Messente Account Balance Number Verification API

OPEN COLLECTION

Messente Account Balance Omnimessage API

OPEN COLLECTION

Messente Account Balance Pricing API

OPEN COLLECTION

Messente Account Balance Statistics API

OPEN COLLECTION

Messente API

OPEN COLLECTION

Scroll for all 12

Messente API pricing

Not yet checked against Messente's own pricing page. Compiled by API Evangelist on 2026-07-01 from messente.com/pricing; confirm before you rely on a figure.

Plan	Price
Pay-as-you-go usage	—
Enterprise enterprise	—

Plan details, limits and sources →

Rate limits

API Requests: see provider documentation requests
Messaging Throughput: see provider documentation messages per second
Bulk Omnimessage: submit large sends via POST /omnimessages recipients

Compiled by API Evangelist, not yet checked against Messente's documentation. Rate-limit details →

Pricing Plans 1

Published pricing tiers and plan structures.

Messente Plans Pricing

2 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Messente Rate Limits

3 limits

RATE LIMITS

Compliance 1

Attestations the provider states (SOC 2, ISO 27001 and others), quoted from its own trust page. APIs.io verifies none of them.

Messente

3 quoted statements, read from Messente's own page on 2026-11-10.

COMPLIANCE

FinOps 1

Cost, billing, and metering signals for API financial operations.

Messente Finops

FINOPS

Spectral Rules 1

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

Messente API Rules

65 rules · 59 error-severity 5 warn-severity 1 info-severity

SPECTRAL

Security Posture 3

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

Messente Authentication

http · 1 scheme

SECURITY

Messente Domain Security

TLSv1.3 · DNSSEC · DMARC

SECURITY

Messente Trust Center

ISO 27001, GDPR

SECURITY

Agentic Access (API Evangelist recommendations) 1

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

Messente Agentic Access

28 operations · 16 acting

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 3

Authentication, authorization, and security posture

TrustCenter

TrustCenter

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 1

Status, limits, changes, and where to get help

RateLimits

RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

Plans

Plans

FinOps

FinOps

Company 3

The organization behind the API

LinkedIn

Website

Website

Blog

Blog

Other 1

Properties that don't map to a standard resource type

Attestations

Attestations

Source (apis.yml)

aid: messente
url: https://raw.githubusercontent.com/api-evangelist/messente/refs/heads/main/apis.yml
name: Messente
kind: company
description: Messente is an Estonian CPaaS provider of global messaging and user verification services. A single Omnimessage
  endpoint sends SMS, Viber, WhatsApp, and Telegram with an automatic fallback chain, backed by contacts and groups in the
  Phonebook, phone number (HLR) lookup, PIN-based number verification / 2FA, delivery reports, and messaging statistics over
  an HTTP Basic authenticated REST API at api.messente.com/v1.
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: enterprise
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Enterprise
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-13'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/messente.png
tags:
- CPaaS
- Messaging
- SMS
- Viber
- WhatsApp
- Verification
- 2FA
created: '2026-07-01'
modified: '2026-07-01'
specificationVersion: '0.23'
apis:
- aid: messente:messente-account-balance-api
  name: Messente Account Balance API
  description: Retrieve the current account balance.
  humanURL: https://messente.com/documentation/omnichannel-api
  baseURL: https://api.messente.com/v1
  tags:
  - Account Balance
  properties:
  - type: OpenAPI
    url: openapi/messente-account-balance-api-openapi.yml
  - type: Documentation
    url: https://messente.com/documentation/omnichannel-api
  - type: APIReference
    url: https://messente.com/documentation
  - type: Documentation
    url: https://messente.com/documentation/phonebook-api
  - type: Documentation
    url: https://messente.com/documentation/phone-number-lookup-api
  - type: Documentation
    url: https://messente.com/documentation/statistics-api
  - type: Documentation
    url: https://messente.com/documentation/omnichannel-api/delivery-report
- aid: messente:messente-blacklist-api
  name: Messente Blacklist API
  description: Manage the phone number blacklist.
  humanURL: https://messente.com/documentation/omnichannel-api
  baseURL: https://api.messente.com/v1
  tags:
  - Blacklist
  properties:
  - type: OpenAPI
    url: openapi/messente-blacklist-api-openapi.yml
  - type: Documentation
    url: https://messente.com/documentation/omnichannel-api
  - type: APIReference
    url: https://messente.com/documentation
  - type: Documentation
    url: https://messente.com/documentation/phonebook-api
  - type: Documentation
    url: https://messente.com/documentation/phone-number-lookup-api
  - type: Documentation
    url: https://messente.com/documentation/statistics-api
  - type: Documentation
    url: https://messente.com/documentation/omnichannel-api/delivery-report
- aid: messente:messente-bulk-messaging-api
  name: Messente Bulk Messaging API
  description: Send an Omnimessage to many recipients in a single request.
  humanURL: https://messente.com/documentation/omnichannel-api
  baseURL: https://api.messente.com/v1
  tags:
  - Bulk Messaging
  properties:
  - type: OpenAPI
    url: openapi/messente-bulk-messaging-api-openapi.yml
  - type: Documentation
    url: https://messente.com/documentation/omnichannel-api
  - type: APIReference
    url: https://messente.com/documentation
  - type: Documentation
    url: https://messente.com/documentation/phonebook-api
  - type: Documentation
    url: https://messente.com/documentation/phone-number-lookup-api
  - type: Documentation
    url: https://messente.com/documentation/statistics-api
  - type: Documentation
    url: https://messente.com/documentation/omnichannel-api/delivery-report
- aid: messente:messente-contacts-api
  name: Messente Contacts API
  description: Manage contacts in the Messente Phonebook.
  humanURL: https://messente.com/documentation/omnichannel-api
  baseURL: https://api.messente.com/v1
  tags:
  - Contacts
  properties:
  - type: OpenAPI
    url: openapi/messente-contacts-api-openapi.yml
  - type: Documentation
    url: https://messente.com/documentation/omnichannel-api
  - type: APIReference
    url: https://messente.com/documentation
  - type: Documentation
    url: https://messente.com/documentation/phonebook-api
  - type: Documentation
    url: https://messente.com/documentation/phone-number-lookup-api
  - type: Documentation
    url: https://messente.com/documentation/statistics-api
  - type: Documentation
    url: https://messente.com/documentation/omnichannel-api/delivery-report
- aid: messente:messente-delivery-report-api
  name: Messente Delivery Report API
  description: Retrieve delivery status for a sent Omnimessage.
  humanURL: https://messente.com/documentation/omnichannel-api
  baseURL: https://api.messente.com/v1
  tags:
  - Delivery Report
  properties:
  - type: OpenAPI
    url: openapi/messente-delivery-report-api-openapi.yml
  - type: Documentation
    url: https://messente.com/documentation/omnichannel-api
  - type: APIReference
    url: https://messente.com/documentation
  - type: Documentation
    url: https://messente.com/documentation/phonebook-api
  - type: Documentation
    url: https://messente.com/documentation/phone-number-lookup-api
  - type: Documentation
    url: https://messente.com/documentation/statistics-api
  - type: Documentation
    url: https://messente.com/documentation/omnichannel-api/delivery-report
- aid: messente:messente-groups-api
  name: Messente Groups API
  description: Manage contact groups in the Messente Phonebook.
  humanURL: https://messente.com/documentation/omnichannel-api
  baseURL: https://api.messente.com/v1
  tags:
  - Group
  tags_raw:
  - Groups
  properties:
  - type: OpenAPI
    url: openapi/messente-groups-api-openapi.yml
  - type: Documentation
    url: https://messente.com/documentation/omnichannel-api
  - type: APIReference
    url: https://messente.com/documentation
  - type: Documentation
    url: https://messente.com/documentation/phonebook-api
  - type: Documentation
    url: https://messente.com/documentation/phone-number-lookup-api
  - type: Documentation
    url: https://messente.com/documentation/statistics-api
  - type: Documentation
    url: https://messente.com/documentation/omnichannel-api/delivery-report
- aid: messente:messente-number-lookup-api
  name: Messente Number Lookup API
  description: Fetch HLR / network information about phone numbers.
  humanURL: https://messente.com/documentation/omnichannel-api
  baseURL: https://api.messente.com/v1
  tags:
  - Number Lookup
  properties:
  - type: OpenAPI
    url: openapi/messente-number-lookup-api-openapi.yml
  - type: Documentation
    url: https://messente.com/documentation/omnichannel-api
  - type: APIReference
    url: https://messente.com/documentation
  - type: Documentation
    url: https://messente.com/documentation/phonebook-api
  - type: Documentation
    url: https://messente.com/documentation/phone-number-lookup-api
  - type: Documentation
    url: https://messente.com/documentation/statistics-api
  - type: Documentation
    url: https://messente.com/documentation/omnichannel-api/delivery-report
- aid: messente:messente-number-verification-api
  name: Messente Number Verification API
  description: PIN-based phone number verification (2FA / one-time passwords).
  humanURL: https://messente.com/documentation/omnichannel-api
  baseURL: https://api.messente.com/v1
  tags:
  - Number Verification
  properties:
  - type: OpenAPI
    url: openapi/messente-number-verification-api-openapi.yml
  - type: Documentation
    url: https://messente.com/documentation/omnichannel-api
  - type: APIReference
    url: https://messente.com/documentation
  - type: Documentation
    url: https://messente.com/documentation/phonebook-api
  - type: Documentation
    url: https://messente.com/documentation/phone-number-lookup-api
  - type: Documentation
    url: https://messente.com/documentation/statistics-api
  - type: Documentation
    url: https://messente.com/documentation/omnichannel-api/delivery-report
- aid: messente:messente-omnimessage-api
  name: Messente Omnimessage API
  description: Send SMS, Viber, WhatsApp, and Telegram messages with an automatic fallback chain.
  humanURL: https://messente.com/documentation/omnichannel-api
  baseURL: https://api.messente.com/v1
  tags:
  - Omnimessage
  properties:
  - type: OpenAPI
    url: openapi/messente-omnimessage-api-openapi.yml
  - type: Documentation
    url: https://messente.com/documentation/omnichannel-api
  - type: APIReference
    url: https://messente.com/documentation
  - type: Documentation
    url: https://messente.com/documentation/phonebook-api
  - type: Documentation
    url: https://messente.com/documentation/phone-number-lookup-api
  - type: Documentation
    url: https://messente.com/documentation/statistics-api
  - type: Documentation
    url: https://messente.com/documentation/omnichannel-api/delivery-report
- aid: messente:messente-pricing-api
  name: Messente Pricing API
  description: Retrieve account pricelist and per-country prices.
  humanURL: https://messente.com/documentation/omnichannel-api
  baseURL: https://api.messente.com/v1
  tags:
  - Pricing
  properties:
  - type: OpenAPI
    url: openapi/messente-pricing-api-openapi.yml
  - type: Documentation
    url: https://messente.com/documentation/omnichannel-api
  - type: APIReference
    url: https://messente.com/documentation
  - type: Documentation
    url: https://messente.com/documentation/phonebook-api
  - type: Documentation
    url: https://messente.com/documentation/phone-number-lookup-api
  - type: Documentation
    url: https://messente.com/documentation/statistics-api
  - type: Documentation
    url: https://messente.com/documentation/omnichannel-api/delivery-report
- aid: messente:messente-statistics-api
  name: Messente Statistics API
  description: Request messaging statistics reports by country.
  humanURL: https://messente.com/documentation/omnichannel-api
  baseURL: https://api.messente.com/v1
  tags:
  - Statistics
  properties:
  - type: OpenAPI
    url: openapi/messente-statistics-api-openapi.yml
  - type: Documentation
    url: https://messente.com/documentation/omnichannel-api
  - type: APIReference
    url: https://messente.com/documentation
  - type: Documentation
    url: https://messente.com/documentation/phonebook-api
  - type: Documentation
    url: https://messente.com/documentation/phone-number-lookup-api
  - type: Documentation
    url: https://messente.com/documentation/statistics-api
  - type: Documentation
    url: https://messente.com/documentation/omnichannel-api/delivery-report
common:
- type: AgenticAccess
  url: agentic-access/messente-agentic-access.yml
- type: TrustCenter
  url: security/messente-trust-center.yml
- type: DomainSecurity
  url: security/messente-domain-security.yml
- type: Authentication
  url: authentication/messente-authentication.yml
- type: GitHubOrganization
  url: https://github.com/messente
- type: LinkedIn
  url: https://www.linkedin.com/company/messente
- type: Website
  url: https://messente.com/
- type: Documentation
  url: https://messente.com/documentation
- type: Plans
  url: plans/messente-plans-pricing.yml
- type: RateLimits
  url: rate-limits/messente-rate-limits.yml
- type: FinOps
  url: finops/messente-finops.yml
- type: Blog
  url: https://messente.com/blog
- type: Attestations
  url: compliance/messente-compliance.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Messente API — frequently asked questions

Does Messente have an API?

Yes. APIs.io lists 11 APIs from Messente, including Messente Account Balance API, Messente Blacklist API and Messente Bulk Messaging API, and 8 more.

Is there an OpenAPI specification for the Messente API?

Yes. APIs.io indexes 11 OpenAPI specifications for Messente, each linked for download from this page.

How do I authenticate with the Messente API?

Messente uses bearer-token authentication (http · 1 scheme). The details are profiled on APIs.io as Messente Authentication.

How much does the Messente API cost?

APIs.io lists 2 pricing plans for Messente, with each plan's price, limits and inclusions under Pricing on this page.

Is the Messente API ready for AI agents?

Messente has a Kin Score of 28.8 out of 100 (thin) and an Agent Readiness score of 21.3 (agent-aware), scored by API Evangelist on 2026-11-13.

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