Kudosity
Kudosity is an Australian business messaging platform — formerly Burst SMS / TransmitSMS — running two live public REST APIs on two hosts. The Transmit Message API (v2) covers SMS, MMS, WhatsApp and RCS with API-managed webhooks and sender registration; the Transmit SMS API (v1) carries contacts, lists, dedicated virtual numbers, keywords, email-to-SMS and all reporting. Both share one account, one set of senders and one bill. Both ship public OpenAPI documents. What makes Kudosity unusual for its size is the agent-native surface layered on top: a hosted MCP server whose tools/list answers without credentials, llms.txt on both the docs and marketing hosts with per-section fan-out, and five published agent integrations — a Claude Code plugin, a GitHub Copilot extension, a Gemini CLI extension, an OpenClaw channel plugin and an SMS GitHub Action — all open source in a public GitHub organization. RCS is in beta; there is no voice product, no sandbox and no idempotency key.
Kudosity publishes 2 APIs on the APIs.io network: Transmit Message API and Transmit SMS API. Tagged areas include Messaging, SMS, MMS, RCS, and WhatsApp.
The Kudosity catalog on APIs.io includes 1 event-driven AsyncAPI specification.
Kudosity’s developer surface includes documentation, API reference, getting-started guide, support, engineering blog, pricing, signup flow, and 40 more developer resources.
Kin Score
APIs 2
Individual APIs this provider publishes, each with its own machine-readable definition.
Transmit Message API
Current v2 REST API covering SMS, MMS, WhatsApp and RCS, plus API-managed webhooks with event-type filtering and sender registration with phone verification. 22 operations acros...
Transmit SMS API
Classic v1 REST API — fully supported, not deprecated. SMS sending with single-request multi-recipient batches and custom tracked-link domains, plus everything v2 does not carry...
MCP Servers 1
Model Context Protocol servers that expose these APIs to AI agents.
kudosity-mcp.yml
MCP SERVERPricing Plans 1
Published pricing tiers and plan structures.
Kudosity Plans
PLANSRate Limits 1
Documented rate limits and quota policies.
Kudosity Rate Limits
RATE LIMITSEvent Specifications 1
AsyncAPI definitions for this provider's event-driven and streaming APIs.
Kudosity Webhooks
ASYNCAPISecurity Posture 4
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Agentic Access 1
Recommended x-agentic-access execution contracts for AI agents.
Resources
Get Started 4
Portal, sign-up, and the first successful call
Documentation 2
Reference material describing how the API behaves
Agent Surfaces 11
MCP servers, agent skills, and machine-readable catalogs
Scroll for all 11
Design & Contract 7
Pagination, idempotency, versioning, errors, and events
Scroll for all 7
Build 7
SDKs, sample code, and the tooling you integrate with
Scroll for all 7
Access & Security 6
Authentication, authorization, and security posture
Operate 5
Status, limits, changes, and where to get help
Commercial 4
Pricing, plans, and the legal terms of use
Company 1
The organization behind the API