HubSpot CRM Associations Schema
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For Agents
Define association labels and configurations between CRM object types in HubSpot, including batch create, update, and purge operations. Useful for agents bootstrapping a custom CRM relationship model.
Use for: List every association definition configured on the HubSpot portal, Read the configuration between two specific CRM object types, Create a new association label between contacts and a custom object, Update an existing association label name
Not supported: Does not create or remove individual record links, mutate CRM records, or manage CRM properties - use for HubSpot association schema and label definitions only.
The HubSpot CRM Associations Schema v4 API defines and reads the catalog of association types and labels available between CRM object pairs. It supports listing all configured association definitions, reading those for a specific object type pair, and creating, updating, or removing labels and configurations in batch. Use this API to set up the relationship vocabulary that the Associations API then operates on.
Install Jentic One Beta
Connect the CRM Associations Schema to your agent
Jentic One is a self-hosted execution layer for AI agents. It lets your agent call the CRM Associations Schema, or any other public or private API you need. You set the rules, the agent never sees your credentials, and every call is logged.
Two steps, two machines. Install the instance in a safe environment, then register your agent from wherever it runs.
1
Step 1: Jentic One Host machine
# On the machine that will host your Jentic One instance:
curl -fsSL "https://jentic.com/install.sh?src=apis&api=%2Fapis%2Fhubspot.com%2Fhubspot-crm-associations-schema" | sh2
Step 2: Agent machine
# On the machine where your agent runs (keep this separate from the instance):
curl -fsSL "https://jentic.com/install.sh?src=apis&api=%2Fapis%2Fhubspot.com%2Fhubspot-crm-associations-schema" | sh
jentic register # connects your agent to your Jentic One instanceJentic One is in public beta. The setup above keeps your agent separate from the instance, which is what you want before using real credentials: an agent running as the same OS user as Jentic One can read its stored keys directly. Just evaluating? A single local install is fine to start. See the secure deployment guide for the tiers.
Capabilities
What an agent can do with CRM Associations Schema API.
List all configured association definitions across the portal
Read the association configuration for a specific from/to object pair
Create, update, and remove association labels for an object pair
Batch-create new association configurations between two object types
Batch-update existing association configurations
Purge association configurations no longer in use
Read and manage labels under /crm/v4/associations/{fromObjectType}/{toObjectType}/labels
Use Cases
Patterns agents use CRM Associations Schema API for, with concrete tasks.
★ Bootstrapping a Custom Object Relationship Model
When defining a new HubSpot custom object, declare the association types and labels it can hold to other CRM objects before any records are linked. POST /crm/v4/associations/definitions/configurations/{fromObjectType}/{toObjectType}/batch/create lets the agent register multiple definitions at once during portal setup.
POST /crm/v4/associations/definitions/configurations/{fromObjectType}/{toObjectType}/batch/create with the new association definitions for the custom object.
Renaming Association Labels
Rename a label such as `Primary` to `Primary Contact` across the portal. PUT /crm/v4/associations/{fromObjectType}/{toObjectType}/labels updates the label definition itself rather than touching individual records.
PUT /crm/v4/associations/{fromObjectType}/{toObjectType}/labels with the labelTypeId and the new label name.
Decommissioning Legacy Associations
When sunsetting a custom object, remove its association definitions to stop new records from being linked. POST /crm/v4/associations/definitions/configurations/{fromObjectType}/{toObjectType}/batch/purge clears the configuration in batch as part of a cleanup workflow.
POST /crm/v4/associations/definitions/configurations/{fromObjectType}/{toObjectType}/batch/purge with the legacy object types.
Agent-Driven Schema Provisioning
Use Jentic to give a setup agent the ability to declare association types as part of a multi-step CRM bootstrap. The agent searches by intent for the right schema operation, loads the input shape, and executes - without writing HubSpot SDK code or exposing the OAuth token.
Use Jentic search 'create a HubSpot association label', load the POST /crm/v4/associations/{fromObjectType}/{toObjectType}/labels schema, and execute with the new label payload.
Key Endpoints
9 endpoints — the hubspot crm associations schema v4 api defines and reads the catalog of association types and labels available between crm object pairs.
METHOD
PATH
DESCRIPTION
GET
/crm/v4/associations/definitions/configurations/all
Read all association definitions
GET
/crm/v4/associations/definitions/configurations/{fromObjectType}/{toObjectType}
Read association definitions for a pair
POST
/crm/v4/associations/definitions/configurations/{fromObjectType}/{toObjectType}/batch/create
Batch create configurations
POST
/crm/v4/associations/definitions/configurations/{fromObjectType}/{toObjectType}/batch/update
Batch update configurations
POST
/crm/v4/associations/definitions/configurations/{fromObjectType}/{toObjectType}/batch/purge
Batch purge configurations
GET
/crm/v4/associations/{fromObjectType}/{toObjectType}/labels
Read association labels
POST
/crm/v4/associations/{fromObjectType}/{toObjectType}/labels
Create an association label
GET
/crm/v4/associations/definitions/configurations/all
Read all association definitions
GET
/crm/v4/associations/definitions/configurations/{fromObjectType}/{toObjectType}
Read association definitions for a pair
POST
/crm/v4/associations/definitions/configurations/{fromObjectType}/{toObjectType}/batch/create
Batch create configurations
POST
/crm/v4/associations/definitions/configurations/{fromObjectType}/{toObjectType}/batch/update
Batch update configurations
POST
/crm/v4/associations/definitions/configurations/{fromObjectType}/{toObjectType}/batch/purge
Batch purge configurations
GET
/crm/v4/associations/{fromObjectType}/{toObjectType}/labels
Read association labels
POST
/crm/v4/associations/{fromObjectType}/{toObjectType}/labels
Create an association label
Why Jentic?
What agents get from Jentic-routed access to this vendor.
Setup
Wiring HubSpot CRM Associations Schema by hand means registering an OAuth app or minting a private app token, targeting api.hubapi.com, and coding the definition configuration and label calls yourself. Through Jentic you install once, import CRM Associations Schema from the API Directory, store the token once, and your agent calls it.
Permission scoping
Associations Schema puts the object-type pair in the URL path (/crm/v4/associations/definitions/configurations/{fromObjectType}/{toObjectType}), so a rule can pin your agent to reading or creating definitions for one type pair. You choose the operations it may call, so purging a definition is not included unless you add it.
Credential isolation
Your HubSpot OAuth token or private app token is stored once, encrypted, by your own Jentic One instance and injected at execution time. It never enters the agent's prompt, logs, or context.
Intent-based discovery
Agents search Jentic by intent such as 'create a HubSpot association label' or 'list association definitions', and Jentic returns the matching Associations Schema operation with its input schema so the agent calls the right endpoint without browsing the reference docs.
Related APIs
Alternatives and complements available in the Jentic catalogue.
FAQs
Specific to using CRM Associations Schema API through Jentic.
What authentication does the HubSpot Associations Schema API use?
OAuth 2.0 authorization code flow or a private app token in either the `private-app` or `private-app-legacy` header. Through Jentic, the credential lives encrypted in the vault and the agent only ever receives a scoped execution token.
Can I create new association labels between two object types?
Yes. POST /crm/v4/associations/{fromObjectType}/{toObjectType}/labels creates a new label between the named object types, and the matching PUT and DELETE endpoints update or remove an existing label.
What are the rate limits for the Associations Schema API?
Standard HubSpot API limits apply - roughly 100 requests per 10 seconds per OAuth app and daily caps on paid tiers. Schema operations are typically low-frequency, so this rarely becomes a bottleneck.
How do I list every association definition through Jentic?
Search Jentic for `list HubSpot association definitions`, load the GET /crm/v4/associations/definitions/configurations/all schema, and execute. Install with `pip install jentic` and authenticate using `JENTIC_AGENT_API_KEY`.
Does this API mutate individual association records?
No. This API defines the shape of allowed associations and labels. To create or remove a specific link between two records, use the CRM Associations API instead.
Can I limit what my agent is allowed to do with the HubSpot Associations Schema API?
Yes. Because you run Jentic One yourself, your own rules decide which operations and credentials the agent may use. Since this API puts the object-type pair in the URL path (/crm/v4/associations/definitions/configurations/{fromObjectType}/{toObjectType}), you can pin the agent to reading or creating definitions for a single type pair. You also choose the exact operations it may call, so a batch purge of association configurations stays off limits unless you explicitly grant it.
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