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 12 API contracts indexed on the APIs.io network, including Account API, Contacts & Lists API, Email SMS API, and 9 more. Tagged areas include Messaging, SMS, MMS, RCS, and WhatsApp.
The Kudosity catalog on APIs.io includes 1 event-driven AsyncAPI specification and 1 Spectral governance ruleset.
Kudosity’s developer surface includes documentation, API reference, getting-started guide, support, engineering blog, pricing, signup flow, and 46 more developer resources.
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):
Idempotency+9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
A2A Agent Card+8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
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)
Pagination+5 pts — share of collection GETs (an array, or one wrapped in data/items/results ...) that declare a page/limit/offset/cursor parameter, a Link header or a next/cursor field; na with no collection GETs
Protected Resource Metadata+5 pts — a served /.well-known/oauth-protected-resource carrying `resource` (documented), and naming its authorization_servers (verified)
3 more unmet checks in the Agent Readiness table above.
Kin Score — facets with the most composite points still available (weight × headroom):
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.
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 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.
The primary method of sending SMS. You can elect to pass us the recipient numbers from your database each time you make an API call. In order to send to a local number for a rec...
Our webhooks API allows you to subscribe to events for SMS, MMS, and RCS messages. Using them requires you to have URLs (https) configured on your account that can receive POST ...
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.
deliveryModel:
model: saas
license_evidence:
not_product:
- kudosity/ai-agent-examples
- kudosity/mcp
open_source: unknown
commercial: true
callable_host: true
label: Hosted service · you call their endpoint
confidence: low
source:
- openapi
- pricing
- repository-not-product
generated: '2026-09-25'
method: derived
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://raw.githubusercontent.com/api-evangelist/kudosity/refs/heads/main/apis.yml
created: '2026-07-11'
modified: '2026-09-03'
specificationVersion: '0.23'
x-docs-platform: readme
x-docs-platform-confidence: high
x-docs-platform-checked: 2026-10-03
tags:
- Messaging
- SMS
- MMS
- RCS
- WhatsApp
- Communications
- CPaaS
- Webhook
- MCP
- Agent-Native
- Australia
- Notification
- Two-Way Messaging
- Contact Management
tags_raw:
- Messaging
- SMS
- MMS
- RCS
- WhatsApp
- Communications
- CPaaS
- Webhooks
- MCP
- Agent-native
- Australia
- Notifications
- Two-Way Messaging
- Contact Management
- agent-native
apis:
- aid: kudosity:kudosity-account-api
name: Kudosity Account API
description: The Account API from Kudosity — 1 operation(s) for account.
humanURL: https://developers.kudosity.com/reference/about-mms
baseURL: https://api.transmitsms.com
tags:
- Account
properties:
- type: OpenAPI
url: openapi/kudosity-account-api-openapi.yml
- type: Overlay
url: overlays/kudosity-account-api-overlay.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
- type: APIReference
url: https://developers.kudosity.com/reference/post_send-sms-json
- type: ErrorCodes
url: errors/kudosity-error-codes.yml
- aid: kudosity:kudosity-contacts-lists-api
name: Kudosity Contacts & Lists API
description: The Contacts & Lists API from Kudosity — 9 operation(s) for contacts & lists.
humanURL: https://developers.kudosity.com/reference/about-mms
baseURL: https://api.transmitsms.com
tags:
- Contacts & Lists
properties:
- type: OpenAPI
url: openapi/kudosity-contacts-lists-api-openapi.yml
- type: Overlay
url: overlays/kudosity-contacts-lists-api-overlay.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
- type: APIReference
url: https://developers.kudosity.com/reference/post_send-sms-json
- type: ErrorCodes
url: errors/kudosity-error-codes.yml
- aid: kudosity:kudosity-email-sms-api
name: Kudosity Email SMS API
description: The Email SMS API from Kudosity — 2 operation(s) for email sms.
humanURL: https://developers.kudosity.com/reference/about-mms
baseURL: https://api.transmitsms.com
tags:
- Email SMS
properties:
- type: OpenAPI
url: openapi/kudosity-email-sms-api-openapi.yml
- type: Overlay
url: overlays/kudosity-email-sms-api-overlay.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
- type: APIReference
url: https://developers.kudosity.com/reference/post_send-sms-json
- type: ErrorCodes
url: errors/kudosity-error-codes.yml
- aid: kudosity:kudosity-keywords-api
name: Kudosity Keywords API
description: The Keywords API from Kudosity — 3 operation(s) for keywords.
humanURL: https://developers.kudosity.com/reference/about-mms
baseURL: https://api.transmitsms.com
tags:
- Keywords
properties:
- type: OpenAPI
url: openapi/kudosity-keywords-api-openapi.yml
- type: Overlay
url: overlays/kudosity-keywords-api-overlay.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
- type: APIReference
url: https://developers.kudosity.com/reference/post_send-sms-json
- type: ErrorCodes
url: errors/kudosity-error-codes.yml
- aid: kudosity:kudosity-mms-api
name: Kudosity MMS API
description: The primary method of sending MMS
humanURL: https://developers.kudosity.com/reference/about-mms
baseURL: https://api.transmitmessage.com
tags:
- MMS
properties:
- type: OpenAPI
url: openapi/kudosity-mms-api-openapi.yml
- type: Overlay
url: overlays/kudosity-mms-api-overlay.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
- type: APIReference
url: https://developers.kudosity.com/reference/post_send-sms-json
- type: ErrorCodes
url: errors/kudosity-error-codes.yml
- aid: kudosity:kudosity-numbers-api
name: Kudosity Numbers API
description: The Numbers API from Kudosity — 4 operation(s) for numbers.
humanURL: https://developers.kudosity.com/reference/about-mms
baseURL: https://api.transmitsms.com
tags:
- Numbers
properties:
- type: OpenAPI
url: openapi/kudosity-numbers-api-openapi.yml
- type: Overlay
url: overlays/kudosity-numbers-api-overlay.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
- type: APIReference
url: https://developers.kudosity.com/reference/post_send-sms-json
- type: ErrorCodes
url: errors/kudosity-error-codes.yml
- aid: kudosity:kudosity-rcs-api
name: Kudosity RCS API
description: The RCS API from Kudosity — 3 operation(s) for rcs.
humanURL: https://developers.kudosity.com/reference/about-mms
baseURL: https://api.transmitmessage.com
tags:
- RCS
properties:
- type: OpenAPI
url: openapi/kudosity-rcs-api-openapi.yml
- type: Overlay
url: overlays/kudosity-rcs-api-overlay.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
- type: APIReference
url: https://developers.kudosity.com/reference/post_send-sms-json
- type: ErrorCodes
url: errors/kudosity-error-codes.yml
- aid: kudosity:kudosity-reporting-api
name: Kudosity Reporting API
description: The Reporting API from Kudosity — 11 operation(s) for reporting.
humanURL: https://developers.kudosity.com/reference/about-mms
baseURL: https://api.transmitsms.com
tags:
- Reporting
properties:
- type: OpenAPI
url: openapi/kudosity-reporting-api-openapi.yml
- type: Overlay
url: overlays/kudosity-reporting-api-overlay.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
- type: APIReference
url: https://developers.kudosity.com/reference/post_send-sms-json
- type: ErrorCodes
url: errors/kudosity-error-codes.yml
- aid: kudosity:kudosity-senders-api
name: Kudosity Senders API
description: The Senders API from Kudosity — 4 operation(s) for senders.
humanURL: https://developers.kudosity.com/reference/about-mms
baseURL: https://api.transmitmessage.com
tags:
- Senders
properties:
- type: OpenAPI
url: openapi/kudosity-senders-api-openapi.yml
- type: Overlay
url: overlays/kudosity-senders-api-overlay.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
- type: APIReference
url: https://developers.kudosity.com/reference/post_send-sms-json
- type: ErrorCodes
url: errors/kudosity-error-codes.yml
- aid: kudosity:kudosity-sms-api
name: Kudosity SMS API
description: 'The primary method of sending SMS.
You can elect to pass us the recipient numbers from your database each time you make an API call.
In order to send to a local number for a recipient the Sender virtual number needs to be in the same country.
You can pass us the recipient number in international format and we will deliver your message with the Sender virtual
number on your account for the same country.
If you do not have a Sender virtual number for the same country we will use a local number for the country you are sending
to in order to deliver your message.
List of countries we currently deliver to: [Global Delivery List](https://help.kudosity.com/support/solutions/articles/44001077065-global-sms-delivery-list)'
humanURL: https://developers.kudosity.com/reference/about-mms
baseURL: https://api.transmitmessage.com
tags:
- SMS
properties:
- type: OpenAPI
url: openapi/kudosity-sms-api-openapi.yml
- type: Overlay
url: overlays/kudosity-sms-api-overlay.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
- type: APIReference
url: https://developers.kudosity.com/reference/post_send-sms-json
- type: ErrorCodes
url: errors/kudosity-error-codes.yml
- aid: kudosity:kudosity-webhook-api
name: Kudosity Webhook API
description: "Our webhooks API allows you to subscribe to events for SMS, MMS, and RCS messages. Using them requires you\
\ to have URLs (https) configured on your account that can receive POST requests over the internet.\n\nThe `event_type`\
\ field is an enum that specifies which event to subscribe to:\n\n- LINK_HIT\n- OPT_OUT\n- MMS_STATUS\n- MMS_INBOUND\n\
- SMS_INBOUND\n- SMS_STATUS\n- RCS_STATUS\n \n\nFor status events, the nested `status` field is an enum with these\
\ values:\n\n- FAILED: Failed because of an error from the carrier or handset.\n \n- SENT: Submitted to the carrier.\n\
- ACCEPTED: Accepted by the carrier and delivery may have been attempted (but is not confirmed).\n- DELIVERED: Delivered\
\ to handset.\n- SOFT_BOUNCE: Undeliverable due to handset being switched off, out of range or other temporary deliverability\
\ issue.\n- HARD_BOUNCE: Handset was disconnected.\n- OTHER: Any other status from the carrier.\n \n\n## Link Hit\n\
\nThe `LINK_HIT` event is triggered any time a recipient visits a link that is tracked. Track Links is an optional flag\
\ on the send message API calls. Along with the URL that was being tracked is a hits field indicating how many visits\
\ this tracked link has in total and a source_message which contains the track link sent to the recipient.\n\n###### Example\
\ Payloads\n\n```json Hit link in MMS {\n \"event_type\": \"LINK_HIT\",\n \"timestamp\": \"2021-05-06T05:19:42Z\",\n\
\ \"link_hit\": {\n \"hits\": 1,\n \"url\": \"https://www.example.com/abc\",\n \"source_message\": {\n \
\ \"type\": \"MMS\",\n \"id\": \"b50e4dc1-e57f-459c-a15c-526bee00a4c4\",\n \"message\": \"Hey, Check this out!\
\ http://clckme.info/KYhSsuIH Opt-out reply STOP\",\n \"message_ref\": \"D701\",\n \"recipient\": \"61435790000\"\
,\n \"sender\": \"61481074191\",\n \"subject\": \"Hello\",\n \"content_urls\": [\n \"https://res.cloudinary.com/burstsms/image/upload/v1618798563/284KB_qgqtbe.jpg\"\
\n ]\n }\n }\n} ``` ```json Hit link in SMS {\n \"event_type\": \"LINK_HIT\",\n \"timestamp\": \"2021-07-20T23:14:04Z\"\
,\n \"link_hit\": {\n \"hits\": 1,\n \"url\": \"https://www.example.com/abc\",\n \"source_message\": {\n \
\ \"type\": \"SMS\",\n \"id\": \"faf68308-16cd-4cf9-aef7-47342bd405be\",\n \"message\": \"Hey, Check this\
\ out! http://clckme.info/KYhSsuIH for Opt-out reply STOP or hit opt out link - http://nsub.me/vqHTcCsh \",\n \"\
message_ref\": \"D301\",\n \"recipient\": \"61435795809\",\n \"sender\": \"61481074185\"\n }\n }\n} ```\n\
## Opt Out\n\nThe `OPT_OUT` event is triggered when a recipient has visited an opt-out link in a message they have received\
\ or by sending a message with the text \"STOP\".\n\nUsing parameter \\[opt-out-link\\] in message body, inserts the opt-out\
\ link.\n\nThe source field will be set according to the method a recipient has used to opt-out and contain a value of\
\ either link or SMS.\n \n\n###### Example Payloads\n\n```json Opt out via link {\n \"event_type\": \"OPT_OUT\",\n \
\ \"timestamp\": \"2021-05-06T05:16:20Z\",\n \"opt_out\": {\n \"source\": \"LINK_HIT\",\n \"source_message\": {\n\
\ \"type\": \"SMS\",\n \"id\": \"a51ebe4e-a412-440e-a8d9-464e68a521cc\",\n \"message\": \"Hey, Check this\
\ out! http://clckme.info/KYhSsuIH for Opt-out reply STOP or hit opt out link - http://nsub.me/vqHTcCsh\",\n \"message_ref\"\
: \"ncc5009d\",\n \"recipient\": \"61435790000\",\n \"sender\": \"61481074190\" \n }\n }\n} ``` ```json\
\ Opt out via message {\n \"event_type\": \"OPT_OUT\",\n \"timestamp\": \"2021-05-06T05:16:20Z\",\n \"opt_out\": {\n\
\ \"source\": \"SMS_INBOUND\",\n \"source_message\": {\n \"type\": \"SMS\",\n \"id\": \"a51ebe4e-a412-440e-a8d9-464e68a521cc\"\
,\n \"message\": \"Hey, Check this out! http://clckme.info/KYhSsuIH for Opt-out reply STOP or hit opt out link -\
\ http://nsub.me/vqHTcCsh\",\n \"message_ref\": \"ncc5009d\",\n \"recipient\": \"61435790000\",\n \"sender\"\
: \"61481074190\"\n }\n }\n} ```\n## MMS Status\n\nThe `MMS_STATUS` event data is posted to you for changes to an\
\ MMS message status. These are currently only comprised of internal statuses (SENT, FAILED).\n\n###### Example Payload\n\
\n```json {\n \"event_type\": \"MMS_STATUS\",\n \"timestamp\": \"2021-05-06T05:19:33Z\",\n \"status\": {\n \"type\"\
: \"MMS\",\n \"id\": \"b50e4dc1-e57f-459c-a15c-526bee00a4c4\",\n \"message_ref\": \"D7001\",\n \"recipient\"\
: \"61435790000\",\n \"sender\": \"61481074191\",\n \"status\": \"SENT\"\n }\n} ```\n## SMS Inbound\n\nThe `SMS_INBOUND`\
\ event is posted to you on receipt of an SMS sent from a recipient to one of the senders listed on your account. For\
\ convenience we will try and find a message that you have sent to this recipient from that sender and supply it as the\
\ `last_message` field. This is useful for determining if an inbound message is potentially a reply. The `routed_via`\
\ field will display when a shared local number has been used to deliver your message.\n\n###### Example Payload\n\n```json\
\ {\n \"event_type\": \"SMS_INBOUND\",\n \"timestamp\": \"2021-05-06T05:16:33Z\",\n \"mo\": {\n \"type\":\"SMS\"\
,\n \"id\": \"alss-2way-605b31c7-d2c49104\",\n \"message\": \"Stop\",\n \"recipient\": \"61481074190\",\n \
\ \"routed_via\": \"447507333300\",\n \"sender\": \"447507222200\",\n \"last_message\": {\n \"type\":\"SMS\"\
,\n \"id\": \"a51ebe4e-a412-440e-a8d9-464e68a521cc\", \n \"message\": \"Hey, check this out!\",\n \"\
message_ref\": \"ncc5009d\",\n \"recipient\": \"447507222200\",\n \"routed_via\": \"447507333300\",\n \"\
sender\": \"61481074190\"\n }\n }\n} ```\n## SMS Status\n\nThe `SMS_STATUS` event data is posted to you for changes\
\ to a SMS message status. Multiple status events can be triggered for a single message.\n\nThe `routed_via` field will\
\ display when a shared local number has been used to deliver your message.\n\n###### Example Payload\n\n```json {\n \
\ \"event_type\": \"SMS_STATUS\",\n \"timestamp\": \"2021-05-06T05:16:07Z\",\n \"status\": {\n \"type\": \"SMS\"\
,\n \"id\": \"a51ebe4e-a412-440e-a8d9-464e68a521cc\",\n \"message_ref\": \"ncc5009d\",\n \"recipient\": \"447507222200\"\
,\n \"routed_via\": \"447507333300\",\n \"sender\": \"61481074190\",\n \"status\": \"SENT\"\n }\n} ```\n## RCS\
\ Status\n\nThe `RCS_STATUS` event data is posted to you for changes to an RCS message status. RCS supports enhanced status\
\ tracking including read receipts.\n\nRCS-specific statuses include:\n\n- SENT: Submitted to the carrier.\n- DELIVERED:\
\ Delivered to handset.\n- FAILED: Failed because of an error from the carrier or handset.\n- READ: Message was read by\
\ the recipient (RCS-specific feature).\n\n###### Example Payload\n\n```json {\n \"event_type\": \"RCS_STATUS\",\n \"\
timestamp\": \"2025-01-07T05:16:07Z\",\n \"webhook_id\": \"fd0e6485-b905-44c1-bd55-fee1d0d6d864\",\n \"webhook_name\"\
: \"RCS Status Webhook\",\n \"status\": {\n \"type\": \"RCS\",\n \"id\": \"6fdae71c-dad7-4c36-9734-a69693ecf3b4\"\
,\n \"message_ref\": \"order-12345\",\n \"recipient\": \"+447903749662\",\n \"sender\": \"DemoSender\",\n \
\ \"status\": \"READ\"\n }\n} ```"
humanURL: https://developers.kudosity.com/reference/about-mms
baseURL: https://api.transmitmessage.com
tags:
- Webhook
properties:
- type: OpenAPI
url: openapi/kudosity-webhook-api-openapi.yml
- type: Overlay
url: overlays/kudosity-webhook-api-overlay.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
- type: APIReference
url: https://developers.kudosity.com/reference/post_send-sms-json
- type: ErrorCodes
url: errors/kudosity-error-codes.yml
- aid: kudosity:kudosity-whats-app-api
name: Kudosity Whats App API
description: The Whats App API from Kudosity — 2 operation(s) for whats app.
humanURL: https://developers.kudosity.com/reference/about-mms
baseURL: https://api.transmitsms.com
tags:
- WhatsApp
tags_raw:
- Whats App
properties:
- type: OpenAPI
url: openapi/kudosity-whats-app-api-openapi.yml
- 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
- type: APIReference
url: https://developers.kudosity.com/reference/post_send-sms-json
- 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: Overlay
url: overlays/kudosity-whatsapp-api-overlay.yaml
- type: Website
url: https://kudosity.com
- type: CapabilityMap
url: capabilities/kudosity-capability-edges.yml
name: Kudosity Business Capability Map
- type: IssueTracker
url: https://github.com/kudosity/mcp/issues
- type: PostmanWorkspace
url: https://www.postman.com/kinlaneapi/kudosity/overview
- 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: MCPServer
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
- type: WellKnown
url: well-known/kudosity-well-known.yml
name: RFC 9727 api-catalog served at developers.kudosity.com/.well-known/api-catalog
x-enrichment:
date: '2026-09-03'
status: enriched
artifacts_added: 13
pass: local-v2
Kudosity API — frequently asked questions
Does Kudosity have an API?
Yes. APIs.io lists 12 APIs from Kudosity, including Kudosity Account API, Kudosity Contacts & Lists API and Kudosity Email SMS API, and 9 more.
Is there an OpenAPI specification for the Kudosity API?
Yes. APIs.io indexes 12 OpenAPI specifications for Kudosity, each linked for download from this page.
How do I authenticate with the Kudosity API?
Kudosity uses bearer-token authentication (apiKey/http · 2 schemes). The details are profiled on APIs.io as Kudosity Authentication.
How much does the Kudosity API cost?
Kudosity publishes its prices; its Pay as you go plan is 8.0¢ ex GST per SMS message part as of 2026-10-28. APIs.io lists 2 pricing plans for Kudosity, with each plan's price, limits and inclusions under Pricing on this page.
Does Kudosity have an MCP server?
Yes. APIs.io lists 1 MCP server for Kudosity: Remote MCP server at developers.kudosity.com over HTTP; 6 tools listed.
Is the Kudosity API ready for AI agents?
Kudosity has a Kin Score of 63.7 out of 100 (strong) and an Agent Readiness score of 49.2 (agent-ready), scored by API Evangelist on 2026-11-06.
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