SimpleTexting

SimpleTexting is a business SMS and MMS marketing platform. Its v2 REST API lets developers send single text messages, run bulk campaigns to lists and segments, manage contacts and contact lists, upload MMS media, provision sending numbers, and subscribe to delivery and incoming-message webhooks, all authenticated with a bearer token.

SimpleTexting publishes 12 APIs on the APIs.io network, including Campaigns API, Contact Lists API, Contact Segments API, and 9 more. Tagged areas include SMS, MMS, Messaging, Marketing, and Text Messaging.

The SimpleTexting catalog on APIs.io includes 1 event-driven AsyncAPI specification.

SimpleTexting’s developer surface includes authentication, engineering blog, documentation, API reference, support, pricing, signup flow, and 25 more developer resources.

🌐 Visit website 📡 Source on GitHub

57.2/100 strong ▬ flat Agent 36/100 agent ready saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

AccessPaidSelf serveFree trial⚡ Free to try

1 APIs

SMS MMS Messaging Marketing Text Messaging SMS Marketing Communications Campaigns Contacts WebhookA2P 10DLC

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 57.2/100 · strong

Contract Quality 11.8 / 19

Developer Ergonomics 6.2 / 15

Access Clarity 11.3 / 15

Operational Transparency 5.4 / 10

Contract Governance 0.4 / 9

Discoverability 5.1 / 8

Regulatory Posture 7.7 / 15

Create-or-Update Ergonomics 1.1 / 10

Agent readiness — 36/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 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 6 / 6

Agent Skills 5 / 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

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/.

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 github.com/api-evangelist/simpletexting: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 12

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

SimpleTexting Campaigns API

Create and retrieve bulk campaigns to lists and segments.

SimpleTexting Contact Lists API

Manage contact lists and list membership.

SimpleTexting Contact Segments API

Read dynamic contact segments.

SimpleTexting Contacts API

Create, read, update, and delete individual contacts.

SimpleTexting Contacts - Batch Operations API

Batch update and delete groups of contacts.

SimpleTexting Custom Fields API

Read account custom fields / merge tags.

SimpleTexting Media Items API

Upload and manage MMS media items.

SimpleTexting Messages API

Send and retrieve one-to-one SMS / MMS messages.

SimpleTexting Tenant API

Account information and sending phone numbers.

SimpleTexting Webhooks API

Subscribe to platform events via HTTP callbacks.

SimpleTexting Tenant phones API

The Tenant phones API from SimpleTexting — 1 operation(s) for tenant phones.

SimpleTexting Webhook Reports API

Use webhooks to communicate between the SimpleTexting platform and your server. Webhooks can be used to forward messages as well as provide info about unsubscribes and message d...

Scroll for all 12

Open Collections 13

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

SimpleTexting API Documentation Campaigns API

OPEN COLLECTION

SimpleTexting API Documentation Contact Lists API

OPEN COLLECTION

SimpleTexting API Documentation Contact Segments API

OPEN COLLECTION

SimpleTexting API Documentation Contacts API

OPEN COLLECTION

SimpleTexting API Documentation Contacts - Batch Operations API

OPEN COLLECTION

SimpleTexting API Documentation Custom Fields API

OPEN COLLECTION

SimpleTexting API Documentation Media Items API

OPEN COLLECTION

SimpleTexting API Documentation Messages API

OPEN COLLECTION

SimpleTexting API Documentation Tenant API

OPEN COLLECTION

SimpleTexting API Documentation Tenant phones API

OPEN COLLECTION

SimpleTexting API Documentation Webhook Reports API

OPEN COLLECTION

SimpleTexting API Documentation Webhooks API

OPEN COLLECTION

SimpleTexting API Documentation

OPEN COLLECTION

Scroll for all 13

Pricing Plans 1

Published pricing tiers and plan structures.

Simpletexting Plans Pricing

2 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Simpletexting Rate Limits

4 limits

RATE LIMITS

FinOps 1

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

Simpletexting Finops

FINOPS

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Simpletexting Webhooks

ASYNCAPI

Security Posture 2

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

Simpletexting Authentication

apiKey · 1 scheme

SECURITY

Simpletexting Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access 1

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

Simpletexting Agentic Access

38 operations · 22 acting

AGENTIC

Resources

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

SignUp

SignUp

Login

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

LLMsTxt

LLMsTxt

AgentSkill

AgentSkill

Design & Contract 7

Pagination, idempotency, versioning, errors, and events

Conformance

ErrorCatalog

Lifecycle

Conventions

DataModel

Components

Webhooks

Scroll for all 7

Build 1

SDKs, sample code, and the tooling you integrate with

Packages

Packages

Access & Security 3

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Compliance

Compliance

Operate 4

Status, limits, changes, and where to get help

RateLimits

StatusPage

HelpCenter

Support

Commercial 5

Pricing, plans, and the legal terms of use

Plans

FinOps

Pricing

TermsOfService

PrivacyPolicy

Company 3

The organization behind the API

Blog

Blog

LinkedIn

Website

Website

Other 1

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

Source (apis.yml)

aid: simpletexting
url: https://raw.githubusercontent.com/api-evangelist/simpletexting/refs/heads/main/apis.yml
name: SimpleTexting
kind: company
description: SimpleTexting is a business SMS and MMS marketing platform. Its v2 REST API lets developers send single text
  messages, run bulk campaigns to lists and segments, manage contacts and contact lists, upload MMS media, provision sending
  numbers, and subscribe to delivery and incoming-message webhooks, all authenticated with a bearer token.
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: paid
  onboarding: self-serve
  trial: true
  try_now: true
  public: false
  label: Paid (free trial) · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/simpletexting.png
tags:
- SMS
- MMS
- Messaging
- Marketing
- Text Messaging
- SMS Marketing
- Communications
- Campaigns
- Contacts
- Webhook
- A2P 10DLC
tags_raw:
- SMS
- MMS
- Messaging
- Marketing
- Text Messaging
- SMS Marketing
- Communications
- Campaigns
- Contacts
- Webhooks
- A2P 10DLC
created: '2026-06-20'
modified: '2026-08-13'
specificationVersion: '0.23'
apis:
- aid: simpletexting:simpletexting-campaigns-api
  name: SimpleTexting Campaigns API
  description: Create and retrieve bulk campaigns to lists and segments.
  humanURL: https://api-doc.simpletexting.com/
  baseURL: https://api-app2.simpletexting.com/v2
  tags:
  - Campaigns
  properties:
  - type: OpenAPI
    url: openapi/simpletexting-campaigns-api-openapi.yml
  - type: Overlay
    url: overlays/simpletexting-campaigns-api-overlay.yaml
  - type: Documentation
    url: https://simpletexting.com/api/docs/
  - type: APIReference
    url: https://api-doc.simpletexting.com/
  - type: PostmanCollection
    url: collections/simpletexting.postman_collection.json
  - type: OpenCollection
    url: collections/simpletexting.opencollection.json
  - type: Review
    url: review.yml
- aid: simpletexting:simpletexting-contact-lists-api
  name: SimpleTexting Contact Lists API
  description: Manage contact lists and list membership.
  humanURL: https://api-doc.simpletexting.com/
  baseURL: https://api-app2.simpletexting.com/v2
  tags:
  - Contact Lists
  properties:
  - type: OpenAPI
    url: openapi/simpletexting-contact-lists-api-openapi.yml
  - type: Overlay
    url: overlays/simpletexting-contact-lists-api-overlay.yaml
  - type: Documentation
    url: https://simpletexting.com/api/docs/
  - type: APIReference
    url: https://api-doc.simpletexting.com/
  - type: PostmanCollection
    url: collections/simpletexting.postman_collection.json
  - type: OpenCollection
    url: collections/simpletexting.opencollection.json
  - type: Review
    url: review.yml
- aid: simpletexting:simpletexting-contact-segments-api
  name: SimpleTexting Contact Segments API
  description: Read dynamic contact segments.
  humanURL: https://api-doc.simpletexting.com/
  baseURL: https://api-app2.simpletexting.com/v2
  tags:
  - Contact Segments
  properties:
  - type: OpenAPI
    url: openapi/simpletexting-contact-segments-api-openapi.yml
  - type: Overlay
    url: overlays/simpletexting-contact-segments-api-overlay.yaml
  - type: Documentation
    url: https://simpletexting.com/api/docs/
  - type: APIReference
    url: https://api-doc.simpletexting.com/
  - type: PostmanCollection
    url: collections/simpletexting.postman_collection.json
  - type: OpenCollection
    url: collections/simpletexting.opencollection.json
  - type: Review
    url: review.yml
- aid: simpletexting:simpletexting-contacts-api
  name: SimpleTexting Contacts API
  description: Create, read, update, and delete individual contacts.
  humanURL: https://api-doc.simpletexting.com/
  baseURL: https://api-app2.simpletexting.com/v2
  tags:
  - Contacts
  properties:
  - type: OpenAPI
    url: openapi/simpletexting-contacts-api-openapi.yml
  - type: Overlay
    url: overlays/simpletexting-contacts-api-overlay.yaml
  - type: Documentation
    url: https://simpletexting.com/api/docs/
  - type: APIReference
    url: https://api-doc.simpletexting.com/
  - type: PostmanCollection
    url: collections/simpletexting.postman_collection.json
  - type: OpenCollection
    url: collections/simpletexting.opencollection.json
  - type: Review
    url: review.yml
- aid: simpletexting:simpletexting-contacts-batch-operations-api
  name: SimpleTexting Contacts - Batch Operations API
  description: Batch update and delete groups of contacts.
  humanURL: https://api-doc.simpletexting.com/
  baseURL: https://api-app2.simpletexting.com/v2
  tags:
  - Contacts - Batch Operations
  properties:
  - type: OpenAPI
    url: openapi/simpletexting-contacts-batch-operations-api-openapi.yml
  - type: Overlay
    url: overlays/simpletexting-contacts-batch-operations-api-overlay.yaml
  - type: Documentation
    url: https://simpletexting.com/api/docs/
  - type: APIReference
    url: https://api-doc.simpletexting.com/
  - type: PostmanCollection
    url: collections/simpletexting.postman_collection.json
  - type: OpenCollection
    url: collections/simpletexting.opencollection.json
  - type: Review
    url: review.yml
- aid: simpletexting:simpletexting-custom-fields-api
  name: SimpleTexting Custom Fields API
  description: Read account custom fields / merge tags.
  humanURL: https://api-doc.simpletexting.com/
  baseURL: https://api-app2.simpletexting.com/v2
  tags:
  - Custom Fields
  properties:
  - type: OpenAPI
    url: openapi/simpletexting-custom-fields-api-openapi.yml
  - type: Overlay
    url: overlays/simpletexting-custom-fields-api-overlay.yaml
  - type: Documentation
    url: https://simpletexting.com/api/docs/
  - type: APIReference
    url: https://api-doc.simpletexting.com/
  - type: PostmanCollection
    url: collections/simpletexting.postman_collection.json
  - type: OpenCollection
    url: collections/simpletexting.opencollection.json
  - type: Review
    url: review.yml
- aid: simpletexting:simpletexting-media-items-api
  name: SimpleTexting Media Items API
  description: Upload and manage MMS media items.
  humanURL: https://api-doc.simpletexting.com/
  baseURL: https://api-app2.simpletexting.com/v2
  tags:
  - Media Items
  properties:
  - type: OpenAPI
    url: openapi/simpletexting-media-items-api-openapi.yml
  - type: Overlay
    url: overlays/simpletexting-media-items-api-overlay.yaml
  - type: Documentation
    url: https://simpletexting.com/api/docs/
  - type: APIReference
    url: https://api-doc.simpletexting.com/
  - type: PostmanCollection
    url: collections/simpletexting.postman_collection.json
  - type: OpenCollection
    url: collections/simpletexting.opencollection.json
  - type: Review
    url: review.yml
- aid: simpletexting:simpletexting-messages-api
  name: SimpleTexting Messages API
  description: Send and retrieve one-to-one SMS / MMS messages.
  humanURL: https://api-doc.simpletexting.com/
  baseURL: https://api-app2.simpletexting.com/v2
  tags:
  - Message
  tags_raw:
  - Messages
  properties:
  - type: OpenAPI
    url: openapi/simpletexting-messages-api-openapi.yml
  - type: Overlay
    url: overlays/simpletexting-messages-api-overlay.yaml
  - type: Documentation
    url: https://simpletexting.com/api/docs/
  - type: APIReference
    url: https://api-doc.simpletexting.com/
  - type: PostmanCollection
    url: collections/simpletexting.postman_collection.json
  - type: OpenCollection
    url: collections/simpletexting.opencollection.json
  - type: Review
    url: review.yml
- aid: simpletexting:simpletexting-tenant-api
  name: SimpleTexting Tenant API
  description: Account information and sending phone numbers.
  humanURL: https://api-doc.simpletexting.com/
  baseURL: https://api-app2.simpletexting.com/v2
  tags:
  - Tenant
  properties:
  - type: OpenAPI
    url: openapi/simpletexting-tenant-api-openapi.yml
  - type: Overlay
    url: overlays/simpletexting-tenant-api-overlay.yaml
  - type: Documentation
    url: https://simpletexting.com/api/docs/
  - type: APIReference
    url: https://api-doc.simpletexting.com/
  - type: PostmanCollection
    url: collections/simpletexting.postman_collection.json
  - type: OpenCollection
    url: collections/simpletexting.opencollection.json
  - type: Review
    url: review.yml
- aid: simpletexting:simpletexting-webhooks-api
  name: SimpleTexting Webhooks API
  description: Subscribe to platform events via HTTP callbacks.
  humanURL: https://api-doc.simpletexting.com/
  baseURL: https://api-app2.simpletexting.com/v2
  tags:
  - Webhook
  tags_raw:
  - Webhooks
  properties:
  - type: OpenAPI
    url: openapi/simpletexting-webhooks-api-openapi.yml
  - type: Overlay
    url: overlays/simpletexting-webhooks-api-overlay.yaml
  - type: Documentation
    url: https://simpletexting.com/api/docs/
  - type: APIReference
    url: https://api-doc.simpletexting.com/
  - type: PostmanCollection
    url: collections/simpletexting.postman_collection.json
  - type: OpenCollection
    url: collections/simpletexting.opencollection.json
  - type: Review
    url: review.yml
- aid: simpletexting:simpletexting-tenant-phones-api
  name: SimpleTexting Tenant phones API
  description: The Tenant phones API from SimpleTexting — 1 operation(s) for tenant phones.
  humanURL: https://api-doc.simpletexting.com/
  baseURL: https://api-app2.simpletexting.com/v2
  tags:
  - Tenant phones
  properties:
  - type: OpenAPI
    url: openapi/simpletexting-tenant-phones-api-openapi.yml
  - type: Overlay
    url: overlays/simpletexting-tenant-phones-api-overlay.yaml
  - type: Documentation
    url: https://simpletexting.com/api/docs/
  - type: APIReference
    url: https://api-doc.simpletexting.com/
  - type: PostmanCollection
    url: collections/simpletexting.postman_collection.json
  - type: OpenCollection
    url: collections/simpletexting.opencollection.json
  - type: Review
    url: review.yml
- aid: simpletexting:simpletexting-webhook-reports-api
  name: SimpleTexting Webhook Reports API
  description: Use webhooks to communicate between the SimpleTexting platform and your server. Webhooks can be used to forward
    messages as well as provide info about unsubscribes and message delivery. SimpleTexting can trigger webhooks for new incoming
    messages, delivery reports and unsubscribes.
  humanURL: https://api-doc.simpletexting.com/
  baseURL: https://api-app2.simpletexting.com/v2
  tags:
  - Webhook Reports
  properties:
  - type: OpenAPI
    url: openapi/simpletexting-webhook-reports-api-openapi.yml
  - type: Overlay
    url: overlays/simpletexting-webhook-reports-api-overlay.yaml
  - type: Documentation
    url: https://simpletexting.com/api/docs/
  - type: APIReference
    url: https://api-doc.simpletexting.com/
  - type: PostmanCollection
    url: collections/simpletexting.postman_collection.json
  - type: OpenCollection
    url: collections/simpletexting.opencollection.json
  - type: Review
    url: review.yml
common:
- type: CapabilityMap
  url: capabilities/simpletexting-capability-edges.yml
  name: SimpleTexting Business Capability Map
- type: AgenticAccess
  url: agentic-access/simpletexting-agentic-access.yml
- type: DomainSecurity
  url: security/simpletexting-domain-security.yml
- type: Authentication
  url: authentication/simpletexting-authentication.yml
- url: https://simpletexting.com/feed/
  type: Blog
- type: LinkedIn
  url: https://www.linkedin.com/company/simpletexting
- type: Website
  url: https://simpletexting.com/
- type: Documentation
  url: https://simpletexting.com/api/docs/
- type: Plans
  url: plans/simpletexting-plans-pricing.yml
- type: RateLimits
  url: rate-limits/simpletexting-rate-limits.yml
- type: FinOps
  url: finops/simpletexting-finops.yml
- type: Packages
  url: packages/simpletexting-packages.yml
- type: LLMsTxt
  url: llms/simpletexting-llms.txt
- type: Conformance
  url: conformance/simpletexting-conformance.yml
- type: Compliance
  url: conformance/simpletexting-conformance.yml
- type: ErrorCatalog
  url: errors/simpletexting-problem-types.yml
- type: Lifecycle
  url: lifecycle/simpletexting-lifecycle.yml
- type: StatusPage
  url: https://status.simpletexting.com/
- type: Conventions
  url: conventions/simpletexting-conventions.yml
- type: DataModel
  url: data-model/simpletexting-data-model.yml
- type: Components
  url: components/simpletexting-components.yml
- type: Webhooks
  url: asyncapi/simpletexting-webhooks.yml
- type: AgentSkill
  url: skills/_index.yml
- type: DeveloperPortal
  url: https://simpletexting.com/api/
- type: APIReference
  url: https://api-doc.simpletexting.com/
- type: HelpCenter
  url: https://help.simpletexting.com/en/
- type: Support
  url: https://help.simpletexting.com/en/
- type: Pricing
  url: https://simpletexting.com/pricing/
- type: SignUp
  url: https://app2.simpletexting.com/sign-up
- type: Login
  url: https://app2.simpletexting.com/
- type: TermsOfService
  url: https://simpletexting.com/terms/
- type: PrivacyPolicy
  url: https://simpletexting.com/privacy-policy/
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
x-enrichment:
  date: '2026-08-13'
  status: enriched
  artifacts_added: 31
  pass: local-v1

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