ceven

Postgrid

Triggers physical mail sends based on digital events, validates customer addresses before printing, and syncs delivery status back to your CRM.

Try Postgrid in Ceven

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Why use Ceven?

  1. AI native Postgrid integration

    • Describe the outcome and Ceven picks the right Postgrid calls, fills the parameters, and checks the result.
    • Structured, agent friendly tool schemas so each call runs reliably instead of by guesswork.
    • Rich coverage for reading, writing, and querying your Postgrid data, across all 60 of its actions.

  2. Managed auth

    • Built in OAuth with automatic token refresh and rotation.
    • One place to manage, scope, and revoke Postgrid access.
    • Per user and per environment credentials instead of shared keys.

  3. Agent optimized design

    • Actions are tuned from real success and error rates so reliability climbs over time.
    • Full execution logs so you always know what ran in Postgrid, when, and on whose behalf.
    • The agent pauses and asks when Postgrid is unclear instead of plowing ahead.

  4. Enterprise grade security

    • Fine grained access so you control which agents and people can reach Postgrid.
    • Least privilege by default, read scopes first and only the writes a workflow needs.
    • A full audit trail of every Postgrid action to support review and sign off.

Supported tools

Every action Ceven's agents can run on Postgrid, and when to use it.

Create Letter
Use this when you need to send a formal document to a recipient. Requires sender details, recipient address, and content.
Create Template
Use this to define reusable HTML content with dynamic placeholders for future mailings.
Create Contact
Use this to save a recipient name and address to Postgrid for faster future sends.
List Letters
Pull a paginated list of all sent letters to audit volume or check status.
Get Letter
Pull the full details and current status of a specific letter using its ID.
List Contacts
Pull a list of saved contacts filtered by name, email, or date range.
Get Contact
Pull the full profile and address details for a specific contact ID.
Create Webhook
Use this to set up a notification endpoint that alerts Ceven when a mail piece is delivered.
List Templates
Pull all available mail templates to identify the correct ID for a specific workflow.
Get Template
Pull the HTML structure and metadata for a specific template ID.
List Cheques
Pull a list of issued checks for financial reporting and reconciliation.
Create Bank Account
Use this to add a funding source for automated check printing and mailing services.
Delete Bank Account
Tool to delete a bank account by its id. use when you need to remove a bank account after confirming its identifier.
Delete Contact
Tool to delete a contact by its id. use when you need to remove obsolete contacts after confirming their identifier.
Delete Template
Tool to delete a template by its id. use when you need to remove an existing template after confirming its identifier.
Delete Webhook
Tool to delete a webhook subscription. use when you need to remove an existing webhook by its id.
Get Bank Account
Tool to retrieve a bank account. use after obtaining the bank account id to fetch its details.
Get Webhook
Tool to retrieve details of a specific webhook by its id. use after creating a webhook to fetch its configuration and status.
List Bank Accounts
Tool to list bank accounts. use when retrieving bank accounts with optional status filter and pagination.
List Postcards
Tool to retrieve a list of postcards with optional filtering and pagination. use when you need to browse or filter postcards list.
List Self Mailers
Tool to list self mailers. use when you need to fetch self mailers with filters and pagination.
List Webhooks
Tool to retrieve a list of configured webhooks with optional filtering and pagination. use when you need to view your webhooks.

22 actions · scroll to see them all

Frequently asked questions

Ceven uses the Postgrid address verification service before any mail is triggered. If the agent detects an invalid address, the workflow pauses and flags the record in your CRM for manual review instead of sending the request to the printer. This prevents you from paying for postage on mail that will be returned. You can configure the agent to either attempt a fuzzy match or simply notify an account manager that the address needs updating. This ensures your postage budget is spent on deliverable mail only.
Yes. You can use the Create Template action to push your own HTML and CSS directly into Postgrid. Ceven can manage these templates for you, meaning the agent can swap out template IDs based on the logic in your workflow. For example, a customer in California might get a different legal disclaimer than a customer in New York. The agent selects the correct template and populates the dynamic placeholders with data from your database before triggering the send.
Ceven sets up a webhook via the Postgrid API that listens for status changes. When a letter moves from pending to printed or delivered, Postgrid sends a notification to Ceven. The agent then finds the corresponding record in your system and updates a status field or sends a notification to your team. This creates a closed loop where you know exactly when a physical piece of mail has reached the customer without checking the Postgrid dashboard manually.
Postgrid enforces rate limits based on your account tier which can lead to 429 errors if you trigger thousands of letters in a single second. To handle this, Ceven implements an internal queue for all Postgrid write actions. Instead of hitting the API all at once, the agent drips the requests at a pace that stays within your specific tier limits. If the agent receives a rate limit response, it automatically applies an exponential backoff strategy to retry the request without failing the workflow.
Yes. By using the bank account and cheque tools, Ceven can automate your accounts payable. When an invoice is approved in your accounting software, the agent can trigger Postgrid to print and mail a physical check to the vendor. This includes pulling the vendor address and the exact payment amount. You can add a human approval step in the Ceven workflow so a manager must click a button before the actual check is printed and mailed.
Absolutely. Postgrid supports various formats including postcards and self mailers. You simply use the corresponding list or create action for postcards within your Ceven workflow. You can set up logic where low priority notifications go as postcards to save on costs while formal legal notices are sent as letters. The agent handles the selection of the mail type based on the priority level defined in your trigger event.
The agent manages your Postgrid contact list to avoid duplicate records. Before creating a new contact, the agent can search your existing Postgrid contacts by email or name. If a match is found, it updates the existing contact with the latest address instead of creating a duplicate. This keeps your Postgrid environment clean and ensures that you are always mailing the most current address on file for every single customer.
Yes. While Postgrid processes requests quickly, you can use Ceven to handle the scheduling logic. You can tell the agent to wait until a specific date or until a certain condition is met before calling the Create Letter action. This allows you to build complex drip campaigns that mix email and physical mail over several weeks. The agent tracks the schedule and triggers the Postgrid API call at the exact moment required.

Alternatives to Postgrid

Other tools that solve a similar problem. Ceven supports these too, so you can switch or run more than one at once.

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