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AI ⇄ CRM

Anthropic to Close integration — real-time data sync

Keep Anthropic and Close in sync without custom scripts. Cut weeks of integration work, eliminate silent data drift, and give your team a single, reliable source of truth.

  • SOC 2 and 6 other compliance frameworks
  • POC with real engineers in minutes

Adopted by fast-scaling companies moving mission-critical data in real time

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Why teams connect Anthropic and Close

Flow Anthropic data into Close in real time — no exports, no schedulers, no custom scripts.

Anthropic is a read-only source: Stacksync reads its data in real time and delivers it into Close, so Close always reflects the current state of Anthropic — without exports, scripts, or schedulers.

Anthropic turns data into something a revenue team can act on: scores, classifications, summaries, and embeddings. But the customers those results describe live in Close, where reps and marketers actually work. Intelligence that stays inside Anthropic rarely reaches the record where a decision gets made, and Anthropic is only as sharp as the data it sees, which is also held in Close.

Because the mapping is field-level, you choose exactly which attributes cross and in which direction, so Close stays the record of the customer while Anthropic stays where the computation happens.

Common use cases

  • 01 Mirror Organization Members and their roles into an IdP or HR database to audit who can access which workspace.
  • 02 Load Message Batches status and results into a database so downstream jobs consume completed batch output by custom_id.
  • 03 Two-way sync between Close and a billing or ERP system so closed-won opportunities create customers and invoices automatically.
  • 04 Keep Close contacts aligned with a marketing automation platform so outreach lists stay current.

Common sync patterns

Where Anthropic enriches people or companies: fields fill in

Enriched attributes from Anthropic populate contact and company fields in Close, and refreshes keep them from going stale.

Where Anthropic scores or ranks records: results on the CRM record

Lead scores, fit ratings, or priority computed in Anthropic land as fields on the matching contact or account in Close, so reps sort and act on them without leaving the CRM.

Where Anthropic classifies or tags: labels sync onto the record

Categories, sentiment, or intent produced in Anthropic attach to the right contact, account, or deal in Close, keeping segmentation current as new data arrives.

What you can sync between Anthropic and Close

Representative objects on each side — any object or custom field can map to any target. Schemas are auto-detected; types are converted between the two systems.

Anthropic objects Close objects How this pairing syncs
Organization Members Users in the organization with their role from /v1/organizations/users; read into an IdP or HR database for access auditing rather than written back. Smart Views Saved lead searches that can scope which records a segment-based sync pulls. Organization Members is specific to Anthropic and Smart Views to Close — each maps to any object or custom field on the other side.
API Keys Key metadata — name, owning workspace, status, creator — from /v1/organizations/api_keys; the secret value is never returned. Read-only, useful for a security key inventory. Leads The top-level record in Close; represents a company and holds its contacts, opportunities, and activity history. API Keys is specific to Anthropic and Leads to Close — each maps to any object or custom field on the other side.
Invites Pending organization invitations from /v1/organizations/invites; read to track who has been invited to the org but has not yet accepted. Contacts People nested under a lead, with emails and phone numbers used for outreach syncs. Invites is specific to Anthropic and Contacts to Close — each maps to any object or custom field on the other side.
Message Batches Asynchronous batch jobs at /v1/messages/batches; the connector polls processing_status and reads per-request results keyed by custom_id once a batch has ended. Opportunities Deal records with value, confidence, and status; commonly synced to reporting and billing systems. Message Batches is specific to Anthropic and Opportunities to Close — each maps to any object or custom field on the other side.
Models Claude model catalog from /v1/models with model IDs, context window, max output, and capability flags; snapshotted into a config table so applications avoid hardcoding model IDs. Activities Calls, emails, SMS, notes, and meetings logged against a lead; the source for engagement analytics. Models is specific to Anthropic and Activities to Close — each maps to any object or custom field on the other side.
Usage Report (messages) Time-bucketed token usage (uncached input, cached input, cache creation, output) grouped by workspace, model, API key, and service tier from /v1/organizations/usage_report/messages; read-only, queried by date range at 1m/1h/1d bucket width. Tasks Follow-up items assigned to users; synced for workload and SLA reporting. Usage Report (messages) is specific to Anthropic and Tasks to Close — each maps to any object or custom field on the other side.

How changes propagate between Anthropic and Close

Each direction of the sync is driven by what the source system can signal and what the destination accepts — detection, delivery, and expected latency below.

Anthropic Close Interval-based propagation

DetectionStacksync polls Anthropic for changes on an incremental schedule, reading only records changed since the previous pass. Polling.

DeliveryEach detected change is written to Close through its API, with automatic retries and rate-limit backoff.

Close Anthropic Sub-second propagation

DetectionClose notifies Stacksync of record changes through webhook events. Webhook subscriptions for record events, with polling on date_updated fields for backfills.

DeliveryAnthropic does not accept inbound record writes, so this direction carries requests rather than records: Anthropic's output flows back as field updates on the originating Close records.

Rate-limit considerations

  • Anthropic: Messages API limits are per usage tier: requests-per-minute plus input- and output-tokens-per-minute, surfaced in anthropic-ratelimit-* response headers with retry-after on 429. Usage/cost reports recommend polling at most once per minute.
  • Close: Subject to per-endpoint rate limits communicated in response headers.
What ships with Anthropic ⇄ Close

Connect Anthropic and Close for flexible, real-time data sync.

Real-time sync, workflow automation, event queues, EDI, and monitoring, for every Anthropic–Close connection.

Real-time

Real-time sync

Changes in Anthropic or Close instantly reflect in both systems. No stale data, no manual imports.

No-code + pro-code

Workflow automation

Trigger automated workflows whenever Anthropic or Close data changes, update records, fire webhooks, or kick off sequences without brittle API scripts.

At scale

Event queues

Handle millions of events per minute without losing a single Anthropic or Close record.

Observability

Monitoring

Track your Anthropic ⇄ Close sync health, view errors, and replay failed events in one click.

Trading partners

EDI

Transform legacy EDI complexity into simple database interactions between Anthropic and Close.

How the Anthropic and Close connectors work

Anthropic

Integration surface
REST — Messages API at api.anthropic.com/v1 plus the Admin API (/v1/organizations/*) for organization, usage, and cost data
Authentication
API key in the x-api-key header for Messages, Models, Files, and Batches endpoints; the Admin API requires a separate Admin API key (sk-ant-admin...) with organization-admin permission. Every request also sends an anthropic-version header.
Change detection
Polling. Usage and cost reports are queried by time bucket (1m/1h/1d) over a date range; list endpoints paginate with has_more/next_page (or after_id). No general-purpose data-change webhooks (webhooks exist only for Managed Agents session state).
Capabilities
read
Rate limits
Messages API limits are per usage tier: requests-per-minute plus input- and output-tokens-per-minute, surfaced in anthropic-ratelimit-* response headers with retry-after on 429. Usage/cost reports recommend polling at most once per minute.

Close

Integration surface
REST API
Authentication
API key (sent via HTTP Basic auth)
Change detection
Webhook subscriptions for record events, with polling on date_updated fields for backfills
Capabilities
read · write · webhooks
Rate limits
Subject to per-endpoint rate limits communicated in response headers
How it works

How to connect Anthropic to Close — three steps, no code

Configure and sync within minutes, no code. Whether you sync 50k or 100M+ records, Stacksync handles the queues, infra, and plumbing. Integrations are non-invasive and need zero setup on your systems.

  1. 01

    Connect your apps

    Authenticate Anthropic and Close with each platform's native method — OAuth, API keys, or service accounts — plus secure options like SSH tunneling, IP whitelisting, and VPC peering.

    • OAuth 2.0
    • SSH tunnel
    • VPC peering
    Anthropic connected
    Close connected
    OAuth 2.0
    SSH tunnel
    SSL certificate
    VPC peering
  2. 02

    Choose tables

    Pick the Anthropic and Close objects to sync — Stacksync auto-detects both schemas, including custom fields where the platform exposes them. Sync to existing tables, or let Stacksync create new ones with ideal data types.

    • Standard objects
    • Custom objects
    • Auto-schema
    objects · Anthropic ⇄ Close
    Customers 12,480
    Sales Orders 8,213
    Invoices 5,902
    Items 1,344
  3. 03

    Map fields

    Fields map automatically even when names and types differ. Stacksync handles transformation and type casting for you, zero configuration required.

    • Auto-map
    • Type casting
    • Transforms
    Anthropic Close
    Company company_name text
    Email email text
    Amount amount numeric
    Created created_at timestamp
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FAQ

Anthropic and Close integration FAQ

SECURITY

Security teams trust Stacksync

As a data company, we understand the importance of keeping your data secure. Stacksync is built with security best practices to keep your data safe at every layer, and is DPF-certified for US, EU, UK and CH data transfers.

Learn more about security
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DPF US-EU-UK-CH
→ SECURITY WITH BENEFITS

SSO & SCIM

Let your users access Stacksync from your centralized user management systems. Works with Okta, Azure, Google SSO and more.

Alerts

Immediately get alerted about record syncing issues over email, Slack, PagerDuty and WhatsApp. Resolve issues from a centralized dashboard with retry and revert options.

Secure connection options

Securely connects to your systems with:

OAuth 2 SSH Tunnelling SSL certificates IP Whitelisting VPN gateway VPC peering and more

Related integrations

Every pair below is a real-time, two-way sync. Search all 404 integrations available for Anthropic and Close.

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