Agent-ready OpenAPI document · curated by JenticIdentity AuthAuthenticationoauth24 EndpointsREST
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For Agents
Exchange, inspect, and revoke HubSpot OAuth access and refresh tokens for installed apps.
Use for: I need to exchange an authorization code for HubSpot access and refresh tokens, Refresh a HubSpot access token using a refresh token, Inspect a HubSpot access token to see its scopes and account, Revoke a HubSpot refresh token when a user uninstalls
Not supported: Does not authenticate end users into the HubSpot UI, manage SSO, or call CRM data - use only for HubSpot OAuth token exchange, inspection, and revocation.
Jentic publishes the only available OpenAPI specification for HubSpot OAuth API, keeping it validated and agent-ready. This API exposes the token endpoints behind HubSpot's OAuth 2.0 flow - exchanging an authorization code or refresh token for an access token, inspecting an existing access or refresh token, and revoking a refresh token. It is the integration surface for any app that connects HubSpot accounts via OAuth instead of static keys.
Install Jentic One Beta
Connect the HubSpot OAuth API to your agent
Jentic One is a self-hosted execution layer for AI agents. It lets your agent call the HubSpot OAuth API, 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%2Fhubapi.com%2Fhubspot-auth-api" | 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%2Fhubapi.com%2Fhubspot-auth-api" | 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 HubSpot OAuth API.
Exchange an authorization code or refresh token for an access token via POST /oauth/v1/token
Inspect an access token's scopes, hub ID, and user via GET /oauth/v1/access-tokens/{token}
Look up a refresh token's account and expiry via GET /oauth/v1/refresh-tokens/{token}
Revoke a refresh token via DELETE /oauth/v1/refresh-tokens/{token}
Build the install + refresh + revoke lifecycle for HubSpot apps
Use Cases
Patterns agents use HubSpot OAuth API for, with concrete tasks.
★ Complete the HubSpot App Install OAuth Flow
After a user authorises a HubSpot app, exchange the authorization code at POST /oauth/v1/token to receive an access token and refresh token bound to their HubSpot account. The refresh token can then be stored to refresh access tokens on demand without re-prompting the user.
POST to /oauth/v1/token with grant_type=authorization_code, the client ID, secret, redirect URI, and code; store the returned refresh_token securely.
Refresh Expired Access Tokens
HubSpot access tokens are short-lived. Use POST /oauth/v1/token with grant_type=refresh_token to mint a fresh access token from the stored refresh token, keeping the integration online without prompting the user again.
POST to /oauth/v1/token with grant_type=refresh_token and the stored refresh_token to mint a new access_token.
Revoke Tokens on Uninstall
When a user uninstalls the app or revokes consent, call DELETE /oauth/v1/refresh-tokens/{token} to invalidate the refresh token cleanly. This prevents the integration from continuing to mint access tokens after consent has been withdrawn.
DELETE /oauth/v1/refresh-tokens/{token} as part of the uninstall webhook handler so the token is invalidated immediately.
AI Agent OAuth Automation via Jentic
An AI agent provisioning HubSpot integrations on a customer's behalf can use Jentic to drive the token exchange and refresh endpoints, keeping the OAuth client secret in your Jentic One instance and out of agent context.
Search Jentic for exchange a hubspot authorization code, load POST /oauth/v1/token, and execute with the stored client credentials and the user's code.
Key Endpoints
4 endpoints — jentic publishes the only available openapi specification for hubspot oauth api, keeping it validated and agent-ready.
METHOD
PATH
DESCRIPTION
POST
/oauth/v1/token
Exchange an authorization code or refresh token for an access token
GET
/oauth/v1/access-tokens/{token}
Inspect an access token
GET
/oauth/v1/refresh-tokens/{token}
Inspect a refresh token
DELETE
/oauth/v1/refresh-tokens/{token}
Revoke a refresh token
POST
/oauth/v1/token
Exchange an authorization code or refresh token for an access token
GET
/oauth/v1/access-tokens/{token}
Inspect an access token
GET
/oauth/v1/refresh-tokens/{token}
Inspect a refresh token
DELETE
/oauth/v1/refresh-tokens/{token}
Revoke a refresh token
Jentic AI Readiness Score
This API is usable in Jentic One now. Its AI-readiness score against Jentic's framework shows where it stands today and where improvements would make it even easier for agents to use.
- Non-Ready (F)
18/100
73
Foundational Compliance64
Developer Experience & Jentic Compatibility5
AI-Readiness & Agent Experience94
Agent Usability100
Security100
AI DiscoverabilityPowered by JenticScoring Framework 1.0.0 | Scoring Engine 0.4.0
Show dimension breakdown
73
Foundational Compliance
Base layer of spec validity and structural soundness.
Grade: A-Signals: 4
94%
Lint Results
Aggregated quality score from linter diagnostics, weighted by severity.
100%
Resolution Completeness
Percentage of `$ref` references that resolve successfully.
0%
Specification Validity
Checks whether the API description parses successfully and conforms to its declared specification (e.g., OpenAPI).
100%
Structural Integrity
Structural correctness score based on schema issues using logarithmic dampening.
64
Developer Experience & Jentic Compatibility
Clarity, completeness, and ingestion readiness for developers and tooling.
Grade: BSignals: 4
7%
Example Density
How richly the API is illustrated with examples.
100%
Example Validity
Percentage of examples that conform to their schemas.
50%
Response Coverage
Percentage of operations with complete response definitions (success, client error, server error).
100%
Tooling Readiness
Health of API ingestion, bundling, and resolution within Jentic pipelines.
5
AI-Readiness & Agent Experience
Semantic breadth, depth, and agent comprehension for AI systems.
Grade: FSignals: 4
20%
Description Coverage
Coverage of descriptions across API elements.
0%
Error Standardization
Coverage of RFC 9457 Problem Details for error responses.
0%
OperationId Quality
Coverage, uniqueness, and casing consistency of operationIds for AI inference.
0%
Summary Coverage
Coverage of summaries across operations/tags/info.
94
Agent Usability
Functional utility, complexity comfort, and AI orchestration readiness.
Grade: A+Signals: 1
94%
Complexity Comfort
Agent comfort level based on API operational and structural complexity.
100
Security
Trust, risk posture, and security compliance.
Grade: A+Signals: 1
100%
Authentication Strength
Average quality of security schemes based on authentication method strength (weakest link for OAuth2).
100
AI Discoverability
Findability, semantic richness, and reasoning readiness.
Grade: A+Signals: 1
100%
Descriptive Richness
Clarity and depth of descriptions across API elements.
Score it yourself
Every API in the directory is allowlisted, so you can re-score it with no key required.
npx @jentic/api-scorecard-cli score <openapi-url>Why Jentic?
What agents get from Jentic-routed access to this vendor.
Setup
Wiring the HubSpot OAuth API by hand means running the token exchange yourself, holding the client id and secret, and tracking access and refresh tokens across the api.hubapi.com host. Through Jentic you install once, import the HubSpot OAuth API from the API Directory, store the client credentials once, and your agent calls it.
Permission scoping
This API covers token exchange, inspection, and revocation, so limit the agent to the operations it needs, such as exchanging an authorization code or inspecting an access token. You choose that set, so revoking a refresh token with DELETE /oauth/v1/refresh-tokens/{token} is not included unless you add it.
Credential isolation
Your HubSpot OAuth client id and secret are stored once, encrypted, by your own Jentic One instance and injected at execution time. They never enter the agent's prompt, logs, or context.
Intent-based discovery
Agents search Jentic by intent such as 'exchange a hubspot authorization code' or 'refresh a hubspot access token', and Jentic returns the matching /oauth/v1 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 HubSpot OAuth API through Jentic.
Why is there no official OpenAPI spec for HubSpot OAuth?
HubSpot does not publish an OpenAPI specification. Jentic generates and maintains this spec so that AI agents and developers can call HubSpot OAuth via structured tooling. It is validated against the live API and kept up to date. Get started with Jentic One, the self-hosted execution layer.
What authentication does the HubSpot OAuth API itself require?
POST /oauth/v1/token uses the OAuth client_id and client_secret of your HubSpot app rather than a bearer token. The token-inspection and revocation endpoints take the token in the URL path and are protected by knowledge of the token itself. Through Jentic, the client secret is held in the encrypted vault.
Can I refresh a HubSpot access token without prompting the user?
Yes. POST to /oauth/v1/token with grant_type=refresh_token and the stored refresh_token. HubSpot returns a new short-lived access_token without requiring a new user consent.
What are the rate limits for the HubSpot OAuth API?
OAuth endpoints share HubSpot's standard rate limits but are typically called only on install, refresh, and revoke - well below per-hapikey ceilings. Cache access tokens until they near expiry to keep the call rate low.
How do I revoke a refresh token through Jentic?
Search Jentic for revoke a hubspot refresh token, load DELETE /oauth/v1/refresh-tokens/{token}, and execute with the token to invalidate. Jentic injects the OAuth client credentials from the vault.
How can I tell which HubSpot account a token belongs to?
GET /oauth/v1/access-tokens/{token} returns the hub ID, user, and scopes attached to the access token. GET /oauth/v1/refresh-tokens/{token} returns equivalent metadata for refresh tokens.
Can I limit what my agent is allowed to do with the HubSpot OAuth API?
Yes. Because you run Jentic One yourself, you decide which of this API's operations your agent may call, so you can grant only token exchange via POST /oauth/v1/token and inspection via GET /oauth/v1/access-tokens/{token} while withholding others. Revoking a refresh token with DELETE /oauth/v1/refresh-tokens/{token} is not available to the agent unless you add it to the allowed set. Your HubSpot OAuth client id and secret stay stored by your own instance and are injected only at execution time, never in the agent's context.
GET STARTED