accessModel: pricing: public onboarding: self-service trial: true try_now: true public: true label: Public, self-service with a free trial confidence: high source: - https://kudosity.com/pricing - https://kudosity.com/trial - https://developers.kudosity.com/docs/getting-started generated: '2026-07-27' method: searched image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/kudosity.png name: Kudosity description: >- 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. url: https://kudosity.apievangelist.com/apis.yml created: '2026-07-11' modified: '2026-07-27' specificationVersion: '0.21' tags: - Messaging - SMS - MMS - RCS - WhatsApp - Communications - CPaaS - Webhooks - MCP - Agent-native - Australia - Notifications - Two-Way Messaging - Contact Management apis: - name: Transmit Message API description: >- 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 across 15 paths, OpenAPI 3.0.3 with 127 component schemas and RFC 9457 problem details. Authenticated with an API key in the x-api-key header. humanURL: https://developers.kudosity.com/reference/about-mms baseURL: https://api.transmitmessage.com tags: - Messaging - SMS - MMS - RCS - WhatsApp - Communications - CPaaS - Webhooks - Agent-native properties: - type: OpenAPI url: openapi/kudosity-transmit-message-openapi-original.yml - type: OpenAPI url: https://developers.kudosity.com/openapi/public-openapi.yaml - type: Documentation url: https://developers.kudosity.com/docs - type: APIReference url: https://developers.kudosity.com/reference/about-mms - type: Authentication url: https://developers.kudosity.com/reference/authentication - type: Webhooks url: asyncapi/kudosity-webhooks.yml - type: ErrorCatalog url: errors/kudosity-problem-types.yml - type: DataModel url: data-model/kudosity-data-model.yml - name: Transmit SMS API description: >- 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: contacts, lists and custom fields, bulk CSV import, dedicated virtual numbers, inbound keywords, email-to-SMS and all campaign reporting. 35 operations, OpenAPI 3.0.0, JSON or XML responses. Authenticated with HTTP Basic (API key + account secret). humanURL: https://developers.kudosity.com/reference/post_send-sms-json baseURL: https://api.transmitsms.com tags: - Messaging - SMS - Communications - CPaaS - Contact Management - Reporting - Two-Way Messaging properties: - type: OpenAPI url: openapi/kudosity-transmit-sms-openapi-original.yml - type: OpenAPI url: https://developers.kudosity.com/openapi/api_documentation.yml - type: Documentation url: https://developers.kudosity.com/docs - type: APIReference url: https://developers.kudosity.com/reference/post_send-sms-json - type: Authentication url: https://developers.kudosity.com/reference/authentication - type: ErrorCodes url: errors/kudosity-error-codes.yml maintainers: - FN: Kudosity url: https://kudosity.com email: rachel.harvey@kudosity.com generated: by: apis.io/add model: claude-opus-4-8 confidence: 98 at: '2026-07-11T18:18:34.530Z' enriched: at: '2026-07-27' method: searched sources_supplied_by_provider: true supplied_by: Rachel Harvey, Kudosity (2026-07-27) canonical_sources: - https://developers.kudosity.com - https://developers.kudosity.com/llms.txt - https://developers.kudosity.com/docs/mcp - https://kudosity.com common: - type: DeveloperPortal url: https://developers.kudosity.com - type: Documentation url: https://developers.kudosity.com/docs - type: APIReference url: https://developers.kudosity.com/reference - type: GettingStarted url: https://developers.kudosity.com/docs/getting-started - type: Support url: https://help.kudosity.com/s/ - type: Blog url: https://kudosity.com/resources/articles - type: GitHubOrganization url: https://github.com/kudosity - type: Pricing url: https://kudosity.com/pricing - type: SignUp url: https://kudosity.com/trial - type: Login url: https://app.transmitsms.com - type: TermsOfService url: https://kudosity.com/legal/terms-and-conditions - type: PrivacyPolicy url: https://kudosity.com/legal/privacy-policy - type: SLA url: https://kudosity.com/legal/service-level-agreement - type: Compliance url: https://trust.kudosity.com/ - type: TrustCenter url: security/kudosity-trust-center.yml - type: Security url: https://trust.kudosity.com/ - type: VulnerabilityDisclosure url: security/kudosity-vulnerability-disclosure.yml - type: DomainSecurity url: security/kudosity-domain-security.yml - type: Authentication url: authentication/kudosity-authentication.yml - type: AgenticAccess url: agentic-access/kudosity-agentic-access.yml - type: MCPServer url: mcp/kudosity-mcp.yml - type: MCP url: https://developers.kudosity.com/mcp - type: ToolCrosswalk url: mcp/kudosity-tool-crosswalk.yml - type: AgentSkill url: skills/_index.yml - type: LLMsTxt url: llms/kudosity-llms.txt - type: LLMsTxt url: llms/kudosity-website-llms.txt - type: Webhooks url: asyncapi/kudosity-webhooks.yml - type: ErrorCatalog url: errors/kudosity-problem-types.yml - type: ErrorCodes url: errors/kudosity-error-codes.yml - type: RateLimits url: rate-limits/kudosity-rate-limits.yml - type: Conventions url: conventions/kudosity-conventions.yml - type: Examples url: examples/kudosity-examples.yml - type: DataModel url: data-model/kudosity-data-model.yml - type: Conformance url: conformance/kudosity-conformance.yml - type: Lifecycle url: lifecycle/kudosity-lifecycle.yml - type: ChangeLog url: https://developers.kudosity.com/changelog - type: ChangeLog url: changelog/kudosity-changelog.yml - type: Plans url: plans/kudosity-plans.yml - type: Packages url: packages/kudosity-packages.yml - type: Postman url: https://developers.kudosity.com/reference/postman - type: Integrations url: https://kudosity.com/integrations - type: AgentSkills url: https://developers.kudosity.com/docs/claude-plugin - type: AgentSkills url: https://developers.kudosity.com/docs/copilot-extension - type: AgentSkills url: https://developers.kudosity.com/docs/gemini-extension - type: AgentSkills url: https://developers.kudosity.com/docs/openclaw-plugin - type: AgentSkills url: https://developers.kudosity.com/docs/sms-action - type: SourceCode url: https://github.com/kudosity/ai-agent-examples - type: SourceCode url: https://github.com/kudosity/mcp