# HubSpot Participant State API

**Canonical:** https://apis.io/apis/hubspot/hubspot-participant-state-api/  
**Provider:** HubSpot — https://apis.io/providers/hubspot/  
**Base URL:** https://api.hubapi.com  
**Documentation:** https://developers.hubspot.com/docs/api/cms/url-redirects

HubSpot Participant State API is one of 82 APIs that [HubSpot](https://apis.io/providers/hubspot/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. This API exposes 692 JSON Schema definitions. Tagged areas include Participant State. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, code examples, and 692 JSON Schemas.

The Participant State API from HubSpot — 5 operation(s) for participant state.

## Operations (5)

| Method | Path | Summary |
|---|---|---|
| GET | `/marketing/marketing-events/2026-09/participations/contacts/{contactIdentifier}/breakdown` | Read participations breakdown by Contact identifier |
| GET | `/marketing/marketing-events/2026-09/participations/{externalAccountId}/{externalEventId}` | Read participations counters by Marketing Event external identifier |
| GET | `/marketing/marketing-events/2026-09/participations/{externalAccountId}/{externalEventId}/breakdown` | Read participations breakdown by Marketing Event external identifier |
| GET | `/marketing/marketing-events/2026-09/participations/{marketingEventId}` | Read participations counters by Marketing Event internal identifier |
| GET | `/marketing/marketing-events/2026-09/participations/{marketingEventId}/breakdown` | Read participations breakdown by Marketing Event internal identifier |

## Machine-readable artifacts (1066)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/hubspot/refs/heads/main/openapi/hubspot-participant-state-api-openapi.yml
- **Documentation** — https://developers.hubspot.com/docs/api/cms/domains
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/hubspot/refs/heads/main/json-schema/domains-api-domain-collection-response-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/hubspot/refs/heads/main/json-schema/domains-api-domain-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/hubspot/refs/heads/main/json-schema/domains-api-forward-paging-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/hubspot/refs/heads/main/json-schema/domains-api-next-page-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/hubspot/refs/heads/main/json-structure/domains-api-domain-collection-response-structure.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/hubspot/refs/heads/main/json-structure/domains-api-domain-structure.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/hubspot/refs/heads/main/json-structure/domains-api-forward-paging-structure.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/hubspot/refs/heads/main/json-structure/domains-api-next-page-structure.json
- **CodeExamples** — https://raw.githubusercontent.com/api-evangelist/hubspot/refs/heads/main/examples/domains-api-domain-collection-response-example.json
- **CodeExamples** — https://raw.githubusercontent.com/api-evangelist/hubspot/refs/heads/main/examples/domains-api-domain-example.json
- **CodeExamples** — https://raw.githubusercontent.com/api-evangelist/hubspot/refs/heads/main/examples/domains-api-forward-paging-example.json
- **CodeExamples** — https://raw.githubusercontent.com/api-evangelist/hubspot/refs/heads/main/examples/domains-api-next-page-example.json
- **GraphQL** — https://raw.githubusercontent.com/api-evangelist/hubspot/refs/heads/main/graphql/hubspot-graphql.md
- **Documentation** — https://developers.hubspot.com/docs/api/cms/source-code
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/hubspot/refs/heads/main/json-schema/source-code-api-action-response-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/hubspot/refs/heads/main/json-schema/source-code-api-asset-file-metadata-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/hubspot/refs/heads/main/json-schema/source-code-api-file-extract-request-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/hubspot/refs/heads/main/json-schema/source-code-api-file-upload-request-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/hubspot/refs/heads/main/json-schema/source-code-api-task-locator-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/hubspot/refs/heads/main/json-schema/source-code-api-validation-error-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/hubspot/refs/heads/main/json-schema/source-code-api-validation-result-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/hubspot/refs/heads/main/json-schema/source-code-api-validation-warning-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/hubspot/refs/heads/main/json-structure/source-code-api-action-response-structure.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/hubspot/refs/heads/main/json-structure/source-code-api-asset-file-metadata-structure.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/hubspot/refs/heads/main/json-structure/source-code-api-file-extract-request-structure.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/hubspot/refs/heads/main/json-structure/source-code-api-file-upload-request-structure.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/hubspot/refs/heads/main/json-structure/source-code-api-task-locator-structure.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/hubspot/refs/heads/main/json-structure/source-code-api-validation-error-structure.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/hubspot/refs/heads/main/json-structure/source-code-api-validation-result-structure.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/hubspot/refs/heads/main/json-structure/source-code-api-validation-warning-structure.json
- **CodeExamples** — https://raw.githubusercontent.com/api-evangelist/hubspot/refs/heads/main/examples/source-code-api-action-response-example.json
- **CodeExamples** — https://raw.githubusercontent.com/api-evangelist/hubspot/refs/heads/main/examples/source-code-api-asset-file-metadata-example.json
- **CodeExamples** — https://raw.githubusercontent.com/api-evangelist/hubspot/refs/heads/main/examples/source-code-api-file-extract-request-example.json
- **CodeExamples** — https://raw.githubusercontent.com/api-evangelist/hubspot/refs/heads/main/examples/source-code-api-file-upload-request-example.json
- **CodeExamples** — https://raw.githubusercontent.com/api-evangelist/hubspot/refs/heads/main/examples/source-code-api-task-locator-example.json
- **CodeExamples** — https://raw.githubusercontent.com/api-evangelist/hubspot/refs/heads/main/examples/source-code-api-validation-error-example.json
- **CodeExamples** — https://raw.githubusercontent.com/api-evangelist/hubspot/refs/heads/main/examples/source-code-api-validation-result-example.json
- **CodeExamples** — https://raw.githubusercontent.com/api-evangelist/hubspot/refs/heads/main/examples/source-code-api-validation-warning-example.json
- …and 1026 more, listed in full on the page.

## Other HubSpot APIs (12)

- [HubSpot URL Redirects API](https://apis.io/apis/hubspot/hubspot-url-redirects-api/)
- [HubSpot Pipelines API](https://apis.io/apis/hubspot/hubspot-pipelines-api/)
- [HubSpot Products API](https://apis.io/apis/hubspot/hubspot-products-api/)
- [HubSpot Line Items API](https://apis.io/apis/hubspot/hubspot-line-items-api/)
- [HubSpot Quotes API](https://apis.io/apis/hubspot/hubspot-quotes-api/)
- [HubSpot CRM Properties API](https://apis.io/apis/hubspot/hubspot-crm-properties-api/)
- [HubSpot Owners API](https://apis.io/apis/hubspot/hubspot-owners-api/)
- [HubSpot CRM Imports API](https://apis.io/apis/hubspot/hubspot-crm-imports-api/)
- [HubSpot Custom Objects API](https://apis.io/apis/hubspot/hubspot-custom-objects-api/)
- [HubSpot Marketing Events API](https://apis.io/apis/hubspot/hubspot-marketing-events-api/)
- [HubSpot Forms API](https://apis.io/apis/hubspot/hubspot-forms-api/)
- [HubSpot Workflows API](https://apis.io/apis/hubspot/hubspot-workflows-api/)

## Tags

Participant State

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/hubspot/hubspot-participant-state-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/hubspot/.