engageSPARK

engageSPARK is a mobile messaging and engagement platform for reaching hard-to-reach populations in low- and middle-income countries at scale. It lets NGOs, researchers, microfinance institutions, and businesses run SMS, automated voice (IVR), WhatsApp, and pre-paid airtime top-up campaigns across 180+ countries without writing code, or programmatically through its HTTP API. The engageSPARK API (api.engagespark.com, v1) exposes token-authenticated endpoints for sending SMS, WhatsApp, and airtime top-ups, managing contacts and organizations, subscribing and unsubscribing contacts to voice and SMS campaigns, reading message and top-up history, checking organization balance, and managing files. Incoming-SMS and campaign-action webhooks let the platform push survey responses and inbound messages into external systems such as Salesforce or Qualtrics.

engageSPARK publishes 7 APIs on the APIs.io network, including Balance API, Campaigns API, Contacts API, and 4 more. Tagged areas include Company, Messaging, SMS, Voice, and WhatsApp.

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

engageSPARK’s developer surface includes documentation, API reference, getting-started guide, support, engineering blog, pricing, signup flow, and 12 more developer resources.

🌐 Visit website 📡 Source on GitHub

31.8/100 thin ▬ flat Agent 30/100 agent aware Full breakdown ↓
scored 2026-08-20 · rubric v0.12.0

AccessSelf serve

7 APIs 1 MCP Servers

CompanyMessagingSMSVoiceWhatsAppAirtimeCommunicationsCPaaSSurveysInternational Development

Kin Score

Kin Score How this is scored →
scored 2026-08-20 · rubric v0.12.0

Composite quality — 31.8/100 · thin

Contract Quality 14.1 / 21

Developer Ergonomics 3.1 / 17

Access Clarity 2.9 / 17

Operational Transparency 0.3 / 11

Contract Governance 1.7 / 10

Discoverability 6.9 / 9

Regulatory Posture 2.1 / 15

Agent readiness — 30/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 0 / 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

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.

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/.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/engagespark: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 7

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

MCP Servers 1

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

Get Started 4

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

SignUp

SignUp

Login

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

MCPServer

AgenticAccess

LLMsTxt

AgentSkill

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 1

Properties that don't map to a standard resource type

Overlay

Overlay

Source (apis.yml)

aid: engagespark
name: engageSPARK
description: engageSPARK is a mobile messaging and engagement platform for reaching hard-to-reach populations in low- and
  middle-income countries at scale. It lets NGOs, researchers, microfinance institutions, and businesses run SMS, automated
  voice (IVR), WhatsApp, and pre-paid airtime top-up campaigns across 180+ countries without writing code, or programmatically
  through its HTTP API. The engageSPARK API (api.engagespark.com, v1) exposes token-authenticated endpoints for sending SMS,
  WhatsApp, and airtime top-ups, managing contacts and organizations, subscribing and unsubscribing contacts to voice and
  SMS campaigns, reading message and top-up history, checking organization balance, and managing files. Incoming-SMS and campaign-action
  webhooks let the platform push survey responses and inbound messages into external systems such as Salesforce or Qualtrics.
url: https://raw.githubusercontent.com/api-evangelist/engagespark/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- 500-global
x-tier: stub
x-tier-reason: portfolio-lead
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-19'
image: https://www.engagespark.com/wp-content/uploads/2017/03/engagespark_logo_small.png
tags:
- Company
- Messaging
- SMS
- Voice
- WhatsApp
- Airtime
- Communications
- CPaaS
- Surveys
- International Development
apis:
- aid: engagespark:engagespark-balance-api
  name: engageSPARK Balance API
  description: The Balance API from engageSPARK — 1 operation(s) for balance.
  humanURL: https://openapi.engagespark.com/
  baseURL: https://api.engagespark.com
  tags:
  - Balances
  tags_raw:
  - Balance
  properties:
  - type: OpenAPI
    url: openapi/engagespark-balance-api-openapi.yml
  - type: Authentication
    url: authentication/engagespark-authentication.yml
  - type: ErrorCatalog
    url: errors/engagespark-problem-types.yml
  - type: Conventions
    url: conventions/engagespark-conventions.yml
  - type: Idempotency
    url: conventions/engagespark-conventions.yml
  - type: DataModel
    url: data-model/engagespark-data-model.yml
  - type: Conformance
    url: conformance/engagespark-conformance.yml
  - type: Lifecycle
    url: lifecycle/engagespark-lifecycle.yml
  - type: Webhooks
    url: asyncapi/engagespark-webhooks.yml
- aid: engagespark:engagespark-campaigns-api
  name: engageSPARK Campaigns API
  description: The Campaigns API from engageSPARK — 2 operation(s) for campaigns.
  humanURL: https://openapi.engagespark.com/
  baseURL: https://api.engagespark.com
  tags:
  - Campaigns
  properties:
  - type: OpenAPI
    url: openapi/engagespark-campaigns-api-openapi.yml
  - type: Authentication
    url: authentication/engagespark-authentication.yml
  - type: ErrorCatalog
    url: errors/engagespark-problem-types.yml
  - type: Conventions
    url: conventions/engagespark-conventions.yml
  - type: Idempotency
    url: conventions/engagespark-conventions.yml
  - type: DataModel
    url: data-model/engagespark-data-model.yml
  - type: Conformance
    url: conformance/engagespark-conformance.yml
  - type: Lifecycle
    url: lifecycle/engagespark-lifecycle.yml
  - type: Webhooks
    url: asyncapi/engagespark-webhooks.yml
- aid: engagespark:engagespark-contacts-api
  name: engageSPARK Contacts API
  description: The Contacts API from engageSPARK — 2 operation(s) for contacts.
  humanURL: https://openapi.engagespark.com/
  baseURL: https://api.engagespark.com
  tags:
  - Contacts
  properties:
  - type: OpenAPI
    url: openapi/engagespark-contacts-api-openapi.yml
  - type: Authentication
    url: authentication/engagespark-authentication.yml
  - type: ErrorCatalog
    url: errors/engagespark-problem-types.yml
  - type: Conventions
    url: conventions/engagespark-conventions.yml
  - type: Idempotency
    url: conventions/engagespark-conventions.yml
  - type: DataModel
    url: data-model/engagespark-data-model.yml
  - type: Conformance
    url: conformance/engagespark-conformance.yml
  - type: Lifecycle
    url: lifecycle/engagespark-lifecycle.yml
  - type: Webhooks
    url: asyncapi/engagespark-webhooks.yml
- aid: engagespark:engagespark-files-api
  name: engageSPARK Files API
  description: The Files API from engageSPARK — 2 operation(s) for files.
  humanURL: https://openapi.engagespark.com/
  baseURL: https://api.engagespark.com
  tags:
  - File
  tags_raw:
  - Files
  properties:
  - type: OpenAPI
    url: openapi/engagespark-files-api-openapi.yml
  - type: Authentication
    url: authentication/engagespark-authentication.yml
  - type: ErrorCatalog
    url: errors/engagespark-problem-types.yml
  - type: Conventions
    url: conventions/engagespark-conventions.yml
  - type: Idempotency
    url: conventions/engagespark-conventions.yml
  - type: DataModel
    url: data-model/engagespark-data-model.yml
  - type: Conformance
    url: conformance/engagespark-conformance.yml
  - type: Lifecycle
    url: lifecycle/engagespark-lifecycle.yml
  - type: Webhooks
    url: asyncapi/engagespark-webhooks.yml
- aid: engagespark:engagespark-sms-api
  name: engageSPARK SMS API
  description: The SMS API from engageSPARK — 4 operation(s) for sms.
  humanURL: https://openapi.engagespark.com/
  baseURL: https://api.engagespark.com
  tags:
  - SMS
  properties:
  - type: OpenAPI
    url: openapi/engagespark-sms-api-openapi.yml
  - type: Authentication
    url: authentication/engagespark-authentication.yml
  - type: ErrorCatalog
    url: errors/engagespark-problem-types.yml
  - type: Conventions
    url: conventions/engagespark-conventions.yml
  - type: Idempotency
    url: conventions/engagespark-conventions.yml
  - type: DataModel
    url: data-model/engagespark-data-model.yml
  - type: Conformance
    url: conformance/engagespark-conformance.yml
  - type: Lifecycle
    url: lifecycle/engagespark-lifecycle.yml
  - type: Webhooks
    url: asyncapi/engagespark-webhooks.yml
- aid: engagespark:engagespark-top-up-api
  name: engageSPARK Top-Up API
  description: The Top-Up API from engageSPARK — 3 operation(s) for top-up.
  humanURL: https://openapi.engagespark.com/
  baseURL: https://api.engagespark.com
  tags:
  - Top-Up
  properties:
  - type: OpenAPI
    url: openapi/engagespark-top-up-api-openapi.yml
  - type: Authentication
    url: authentication/engagespark-authentication.yml
  - type: ErrorCatalog
    url: errors/engagespark-problem-types.yml
  - type: Conventions
    url: conventions/engagespark-conventions.yml
  - type: Idempotency
    url: conventions/engagespark-conventions.yml
  - type: DataModel
    url: data-model/engagespark-data-model.yml
  - type: Conformance
    url: conformance/engagespark-conformance.yml
  - type: Lifecycle
    url: lifecycle/engagespark-lifecycle.yml
  - type: Webhooks
    url: asyncapi/engagespark-webhooks.yml
- aid: engagespark:engagespark-whatsapp-api
  name: engageSPARK WhatsApp API
  description: The WhatsApp API from engageSPARK — 3 operation(s) for whatsapp.
  humanURL: https://openapi.engagespark.com/
  baseURL: https://api.engagespark.com
  tags:
  - WhatsApp
  properties:
  - type: OpenAPI
    url: openapi/engagespark-whatsapp-api-openapi.yml
  - type: Authentication
    url: authentication/engagespark-authentication.yml
  - type: ErrorCatalog
    url: errors/engagespark-problem-types.yml
  - type: Conventions
    url: conventions/engagespark-conventions.yml
  - type: Idempotency
    url: conventions/engagespark-conventions.yml
  - type: DataModel
    url: data-model/engagespark-data-model.yml
  - type: Conformance
    url: conformance/engagespark-conformance.yml
  - type: Lifecycle
    url: lifecycle/engagespark-lifecycle.yml
  - type: Webhooks
    url: asyncapi/engagespark-webhooks.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: MCPServer
  url: mcp/engagespark-mcp.yml
- type: Overlay
  url: overlays/engagespark-openapi-overlay.yaml
- type: AgenticAccess
  url: agentic-access/engagespark-agentic-access.yml
- type: DomainSecurity
  url: security/engagespark-domain-security.yml
- type: Website
  url: https://engagespark.com
- type: DeveloperPortal
  url: https://www.engagespark.com/support/how-can-i-use-your-api/
- type: Documentation
  url: https://openapi.engagespark.com/
- type: APIReference
  url: https://openapi.engagespark.com/
- type: GettingStarted
  url: https://www.engagespark.com/support/getting-started/
- type: Support
  url: https://www.engagespark.com/support/
- type: Blog
  url: https://www.engagespark.com/blog/
- type: Pricing
  url: https://www.engagespark.com/pricing/
- type: SignUp
  url: https://app.engagespark.com/register
- type: Login
  url: https://app.engagespark.com/login
- type: TermsOfService
  url: https://www.engagespark.com/terms-of-service/
- type: PrivacyPolicy
  url: https://www.engagespark.com/privacy-policy/
- type: GitHubOrganization
  url: https://github.com/engagespark
- type: LLMsTxt
  url: llms/engagespark-llms.txt
- type: AgentSkill
  url: skills/_index.yml
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

engageSPARK

Kin Score

APIs 7

engageSPARK Balance API

engageSPARK Campaigns API

engageSPARK Contacts API

engageSPARK Files API

engageSPARK SMS API

engageSPARK Top-Up API

engageSPARK WhatsApp API

Open Collections 8

API Collection

engageSPARK Balance API

engageSPARK Balance Campaigns API

engageSPARK Balance Contacts API

engageSPARK Balance Files API

engageSPARK Balance SMS API

engageSPARK Balance Top-Up API

engageSPARK Balance WhatsApp API

MCP Servers 1

engageSPARK MCP Server

Event Specifications 1

Engagespark Webhooks

Security Posture 2

Engagespark Authentication

Engagespark Domain Security

Agentic Access 1

Engagespark Agentic Access

Resources