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APIs / CRM / Cloze CRM API
Cloze CRM API logo

Cloze CRM API

46
AI ReadinessFoundational (D)46/100
See full scorecard
Agent-ready OpenAPI document · curated by JenticCRMContact ManagementapiKey43 EndpointsREST

Know of an official OpenAPI document? Contribute it →

For Agents

Manage Cloze CRM data programmatically - create and update people, companies, and projects, log timeline communications, query funnel analytics, and subscribe to change webhooks.

Use for: Create a new person record in Cloze with name, email, and phone, Update a company's address and industry on its existing Cloze record, Find a person in Cloze by email before creating a duplicate, Log a communication record against a contact's timeline after a meeting

Not supported: Does not handle outbound email delivery, payment processing, or marketing campaign execution - use for Cloze CRM contact, company, project, timeline, and analytics operations only.

Cloze publishes an official OpenAPI specification in its API reference. The specification on this page is a curated, agent-optimized subset written and maintained by Jentic, covering 43 endpoints and kept validated and agent-ready. The Cloze API gives programmatic access to the Cloze relationship management platform: people, companies, projects, the activity timeline, custom fields, segments, stages, team roles, analytics, and webhooks. It supports creating and updating contacts and companies, recording communications and content against a timeline, querying project funnels and lead qualification data, and subscribing to change events. Authentication uses an API key passed as the api_key query parameter.

Jentic One on GithubView OpenAPI Document

Install Jentic One Beta

Connect the Cloze CRM API to your agent

Jentic One is a self-hosted execution layer for AI agents. It lets your agent call the Cloze CRM 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%2Fcloze.com%2Fcloze" | sh
2

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%2Fcloze.com%2Fcloze" | sh
jentic register       # connects your agent to your Jentic One instance

Jentic 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 Cloze CRM API.

Create, update, find, and delete people and company contact records

Create and update projects, including stages, segments, and custom fields

Log communications, content, and to-do items on a contact or project timeline

Query analytics endpoints for team activity, lead qualification, and funnel data

Manage team members, subteam nodes, and team roles

Subscribe to webhook events for changes to people, companies, and projects

Use Cases

Patterns agents use Cloze CRM API for, with concrete tasks.

★ Two-Way Contact Sync With Other Systems

Teams running Cloze alongside marketing automation or finance tools sync contacts both ways. /v1/people/find and /v1/companies/find detect existing records before /v1/people/create or /v1/companies/create insert new ones, while /v1/people/update keeps fields current as upstream systems change. Webhook subscriptions via /v1/webhooks/subscribe push change events outwards, removing the need to poll. The 43 endpoints cover the full read-write surface needed for a robust sync.

Find a person in Cloze by email via GET /v1/people/find, and if no match exists, create the record via POST /v1/people/create with name, email, and company

Automated Timeline Logging From Email and Calls

Sales reps want every email, call, and meeting to land on the right contact's timeline without manual entry. POST /v1/timeline/communication/create records inbound and outbound communications against a person or company, and POST /v1/timeline/content/create attaches related content like decks or notes. Combined with /v1/people/find for resolution, an integration can listen on a mail server or telephony API and write a complete activity history into Cloze automatically.

When a sales call ends, find the contact in Cloze by phone number then POST /v1/timeline/communication/create with the call duration, direction, and a short summary

Sales Funnel and Lead Qualification Analytics

Sales managers analysing pipeline health pull funnel and lead qualification data on demand rather than waiting for built-in reports. POST /v1/analytics/funnel returns funnel stage data, POST /v1/analytics/leads returns lead qualification metrics, and POST /v1/analytics/teamactivity surfaces what the team did in a given period. The results power a custom dashboard or feed a weekly forecasting report without exporting to spreadsheets.

Run POST /v1/analytics/funnel for the current quarter and POST /v1/analytics/leads for the same period, then summarise stage-by-stage conversion rates

AI Agent Maintaining a Live CRM via Jentic

AI agents handling sales operations call Cloze through Jentic to keep records current as conversations happen. The agent expresses an intent like 'create a person' or 'log a call', and Jentic loads the matching Cloze operation, supplies the api_key from the vault, and returns structured results. The same flow handles webhooks, so the agent can react to changes without polling the Cloze feed endpoints.

Through Jentic, search for 'create a person in CRM', load the cloze.com /v1/people/create operation, and execute it with the prospect's name, email, and company

Key Endpoints

43 endpoints — cloze publishes an official openapi specification in its api reference.

METHOD

PATH

DESCRIPTION

POST

/v1/people/create

Create a person record

POST

/v1/people/update

Update a person record

GET

/v1/people/find

Find people by email or other identifier

POST

/v1/companies/create

Create a company record

POST

/v1/projects/create

Create a project

POST

/v1/timeline/communication/create

Add a communication record to a timeline

POST

/v1/webhooks/subscribe

Subscribe to change events

POST

/v1/analytics/funnel

Query funnel information (BETA)

POST

/v1/people/create

Create a person record

POST

/v1/people/update

Update a person record

GET

/v1/people/find

Find people by email or other identifier

POST

/v1/companies/create

Create a company record

POST

/v1/projects/create

Create a project

POST

/v1/timeline/communication/create

Add a communication record to a timeline

POST

/v1/webhooks/subscribe

Subscribe to change events

POST

/v1/analytics/funnel

Query funnel information (BETA)

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.

C

Cloze CRM API

- Foundational (D)
46/100
46
Foundational Compliance
59
Developer Experience & Jentic Compatibility
55
AI-Readiness & Agent Experience
94
Agent Usability
15
Security
100
AI Discoverability
Powered by JenticScoring Framework 1.0.0 | Scoring Engine 0.4.0
Show dimension breakdown
46

Foundational Compliance

Base layer of spec validity and structural soundness.

Grade: DSignals: 4
55%

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).

30%

Structural Integrity

Structural correctness score based on schema issues using logarithmic dampening.

59

Developer Experience & Jentic Compatibility

Clarity, completeness, and ingestion readiness for developers and tooling.

Grade: C+Signals: 4
4%

Example Density

How richly the API is illustrated with examples.

84%

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.

55

AI-Readiness & Agent Experience

Semantic breadth, depth, and agent comprehension for AI systems.

Grade: CSignals: 4
71%

Description Coverage

Coverage of descriptions across API elements.

0%

Error Standardization

Coverage of RFC 9457 Problem Details for error responses.

100%

OperationId Quality

Coverage, uniqueness, and casing consistency of operationIds for AI inference.

50%

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.

15

Security

Trust, risk posture, and security compliance.

Grade: FSignals: 1
15%

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.

View full reportHow the score is calculatedMore about the dimensions

Score it yourself

Every API in the directory is allowlisted, so you can re-score it with no key required.

Score your own APIScoring CLI agent skill
npx @jentic/api-scorecard-cli score <openapi-url>

Why Jentic?

What agents get from Jentic-routed access to this vendor.

Setup

Wiring Cloze by hand means appending its api_key query parameter to every call to api.cloze.com, keeping that key out of your logs, and handling retries across its CRM endpoints yourself. Through Jentic you install once, import the Cloze CRM API from the API Directory, store the key once, and your agent calls it.

Permission scoping

Cloze passes person and company targets in the request body rather than the URL path, so scope the agent to the operations it needs, such as finding a person or logging a timeline communication. You choose that set, so write operations like creating a person or subscribing a webhook are not included unless you add them.

Credential isolation

Your Cloze api_key is stored once, encrypted, by your own Jentic One instance and appended as the query parameter 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 person', 'log a call', or 'query a sales funnel', and Jentic returns the matching Cloze operation with its input schema so the agent calls the right endpoint without browsing the Cloze docs.

Related APIs

Alternatives and complements available in the Jentic catalogue.

Alternative

Pipedrive API

→

Pipedrive is a sales-focused CRM with a similar contact, deal, and activity model

Choose Pipedrive when the team uses its visual sales pipeline UI; choose Cloze when relationship management and timeline auto-capture are the priority

Alternative

Copper API

→

Copper is another relationship-management CRM with people, companies, opportunities, and activities

Choose Copper for tight Google Workspace integration; choose Cloze when funnel analytics and webhook subscriptions are required

Complementary

HubSpot API

→

HubSpot covers marketing automation and email that complements Cloze's relationship-management focus

Use HubSpot for outbound email and forms, then mirror engagement back to Cloze via /v1/timeline/communication/create

FAQs

Specific to using Cloze CRM API through Jentic.

Does Cloze publish an official OpenAPI spec for the Cloze CRM API?

Yes. Cloze publishes an official OpenAPI 3.1.1 document at https://api.cloze.com/api-docs/cloze-openapi.json, titled 'Cloze API Reference', covering 55 endpoints. That document is canonical. The specification on this page is a curated, agent-optimized subset written and maintained by Jentic, covering 43 endpoints and validated against the live API; the official document additionally exposes bulk-fetch and timeline operations for people, companies, and projects, and declares bearer and OAuth2 schemes alongside the api_key query parameter. Get started with Jentic One, the self-hosted execution layer.

What authentication does the Cloze CRM API use?

The Cloze API uses an apiKey scheme with the key passed as the api_key query parameter on every request. Through Jentic the key is stored encrypted in the vault and appended to the request URL only at execution time, so the agent never sees the raw key.

Can I create and update people and companies with the Cloze CRM API?

Yes. POST /v1/people/create and POST /v1/people/update handle person records, POST /v1/companies/create and POST /v1/companies/update handle companies, and DELETE /v1/people/delete removes a person. /v1/people/find and /v1/companies/find let you check for existing records before inserting.

Can I subscribe to webhooks for Cloze changes?

Yes. POST /v1/webhooks/subscribe registers a callback URL for change events on people, companies, and projects. POST /v1/webhooks/unsubscribe removes a subscription, and GET /v1/webhooks lists active subscriptions.

What are the rate limits for the Cloze CRM API?

The OpenAPI specification does not declare explicit rate limit headers or a 429 response. Cloze applies plan-based limits, so high-volume sync jobs should batch updates and back off if requests start to fail. Through Jentic, retries are handled by the SDK.

How do I create a person record in Cloze through Jentic?

Install the SDK with pip install jentic, search for 'create a person in CRM', load the cloze.com /v1/people/create operation, and execute it with name, email, and company. Jentic supplies the api_key automatically and returns the created record's identifier.

Can I query Cloze analytics endpoints from an integration?

Yes. POST /v1/analytics/teamactivity, /v1/analytics/activity, /v1/analytics/projects, /v1/analytics/leads, and /v1/analytics/funnel return team-, project-, lead-, and funnel-level metrics that can drive a custom dashboard or feed into a weekly report.

Can I limit what my agent is allowed to do with the Cloze CRM API?

Yes. Because you run Jentic One yourself, your own rules decide which Cloze operations and credentials the agent can use, so you can grant only read-side calls such as GET /v1/people/find or POST /v1/analytics/funnel and leave write calls out. Cloze passes person and company targets in the request body rather than the URL path, so scoping is done at the operation level: you pick the exact set the agent may call. Write operations like POST /v1/people/create or POST /v1/webhooks/subscribe are not available to the agent unless you explicitly add them to that set.

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