engageSPARK website screenshot

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 API contracts indexed 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 and 1 Spectral governance ruleset.

engageSPARK’s developer surface includes documentation, API reference, getting-started guide, support, engineering blog, pricing, signup flow, and 14 more developer resources.

47.8/100 developing ▲ 7.8 Agent 32/100 agent ready Front door AI 5/6 prominent Heartbeat 32/100 alive saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →
AccessFreemiumSelf serve⚡ Free to try
1 published contract 4 Agent Skills
CompanyMessagingSMSVoiceWhatsAppAirtimeCommunicationsCPaaSSurveysInternational Development

What this lets a business do 1

Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →

Customer Relationship Management
BC-420
Contacts

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0
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
  • A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
  • Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)
  • Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
  • 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)
  • 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):
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/engagespark/apis.yml: open an issue on github.com/api-evangelist/engagespark 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 →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

MarketPositionDepthRegistered MCP serverDeclares compatibility
Surveys, Market Research and Experience Management undeclared - - 1

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

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.

measured — observed by APIs.io (published)

APIs 7

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

engageSPARK Balance API

The Balance API from engageSPARK — 1 operation(s) for balance.

engageSPARK Campaigns API

The Campaigns API from engageSPARK — 2 operation(s) for campaigns.

engageSPARK Contacts API

The Contacts API from engageSPARK — 2 operation(s) for contacts.

engageSPARK Files API

The Files API from engageSPARK — 2 operation(s) for files.

engageSPARK SMS API

The SMS API from engageSPARK — 4 operation(s) for sms.

engageSPARK Top-Up API

The Top-Up API from engageSPARK — 3 operation(s) for top-up.

engageSPARK Whats App API

The Whats App API from engageSPARK — 3 operation(s) for whats app.

Scroll for all 7

Open Collections 7

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

engageSPARK Balance API

OPEN COLLECTION

Scroll for all 7

Agent Skills 4

Packaged agent skills for driving this provider's APIs from an AI assistant.

Manage contacts

AGENT SKILL

engageSPARK API pricing

Prices published by engageSPARK, read 2026-09-20 from www.engagespark.com/pricing/.

PlanPrice
Send a Text Message (engageSPARK Global Network) From $0.02/ SMS
Receive a Text Message $0.02/ SMS + $19.99/ MONTH
Send a WhatsApp Marketing Message $0.017 + 0.000/ MESSAGE
Send a WhatsApp Utility Message $0.017 + 0.000/ MESSAGE
Receive a WhatsApp Message $0.017/ MESSAGE
Send a Voice Call From $0.000/ MINUTE
Receive a Voice Call $0.005/ MINUTE + $1.00/ MONTH
Receive a Missed Call $0.005/ CALL + $5.000/ MONTH

All 10 plans, limits and sources →

Pricing Plans 2

Published pricing tiers and plan structures.

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

Event Specifications 1

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

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

engageSPARK API Rules

66 rules · 58 errors 6 warnings 2 info

SPECTRAL

OpenAPI Overlays 1

Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.

Engagespark Openapi Overlay

3 actions · update · engagespark-openapi-original.yml

DERIVED

Security Posture 2

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

Engagespark Authentication

http · 1 scheme

SECURITY

Engagespark Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access 1

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

Engagespark Agentic Access

23 operations · 12 acting

23 operations · 12 acting

AGENTIC

Resources

Get Started 4

Portal, sign-up, and the first successful call

Documentation 2

Reference material describing how the API behaves

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

Build 1

SDKs, sample code, and the tooling you integrate with

Access & Security 1

Authentication, authorization, and security posture

Operate 1

Status, limits, changes, and where to get help

Commercial 4

Pricing, plans, and the legal terms of use

Company 2

The organization behind the API

Other 2

Properties that don't map to a standard resource type

Source (apis.yml)

apis.yml Raw ↑
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
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: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Freemium · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-06'
  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
  tags_raw:
  - 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-whats-app-api
  name: engageSPARK Whats App API
  description: The Whats App API from engageSPARK — 3 operation(s) for whats app.
  humanURL: https://openapi.engagespark.com/
  baseURL: https://api.engagespark.com
  tags:
  - WhatsApp
  tags_raw:
  - Whats App
  properties:
  - type: OpenAPI
    url: openapi/engagespark-whats-app-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: Plans
  url: plans/engagespark-plans-pricing.yml
- type: CapabilityMap
  url: capabilities/engagespark-capability-edges.yml
  name: engageSPARK Business Capability Map
- type: X-MCPServerCandidate
  url: mcp/engagespark-mcp.yml
  note: 'Renamed from MCPServer 2026-09-03 (roadmap#247): the manifest self-describes as status: candidate — a tool list derived
    from the published API contracts, not an existing server. The scorer already read the manifest and reported mcp_server
    correctly; the MCPServer type was crediting the artifact-type surfaces with a server that does not exist.'
- 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 API — frequently asked questions

Does engageSPARK have an API?

Yes. APIs.io lists 7 APIs from engageSPARK, including engageSPARK Balance API, engageSPARK Campaigns API and engageSPARK Contacts API, and 4 more.

Is there an OpenAPI specification for the engageSPARK API?

Yes. APIs.io indexes 7 OpenAPI specifications for engageSPARK, each linked for download from this page.

How do I authenticate with the engageSPARK API?

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

How much does the engageSPARK API cost?

engageSPARK publishes its prices; its Send a Text Message (engageSPARK Global Network) plan is From $0.02/ SMS as of 2026-09-20. APIs.io lists 10 pricing plans for engageSPARK, with each plan's price, limits and inclusions under Pricing on this page.

Is the engageSPARK API ready for AI agents?

engageSPARK has a Kin Score of 47.8 out of 100 (developing) and an Agent Readiness score of 32.2 (agent-ready), scored by API Evangelist on 2026-11-06.

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