Integration
Connect PostGrid Print & Mail to Signatureapi
When New Cheque fires in PostGrid Print & Mail, your agent runs Add ceremony in Signatureapi. Describe the whole flow and it is built, tested on every scenario and kept running.
What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it.
Build solutions, not workarounds.
What do you want PostGrid Print & Mail and Signatureapi to do together?
Ask the assistant
Connect your AI client
Give your AI client this address.
https://mcp.apiant.aiOne connection does both: ask your client to act in an app once, or have it build an automation that keeps running. Any client that takes a remote MCP server. Nothing to install. Create your free account, then sign in once in your browser.
Set it up in your client
Claude Code
Run this in the directory you want to work in.
claude mcp add --transport http -s project apiant-ai https://mcp.apiant.aiStart Claude Code there, approve the server, and sign in in the browser page it opens.
Claude Code guide (opens in a new tab)Claude, web and desktop
Open Customize, then Connectors, then Add custom connector, and paste the address. On Team and Enterprise an owner adds it first.
Setup guide (opens in a new tab)Cursor
Add the address to your MCP configuration as a server URL. Cursor signs you in in your browser.
Setup guide (opens in a new tab)Zed
Open Settings, then AI, then MCP Servers, then Add Server, then Add Remote Server.
Setup guide (opens in a new tab)Codex and the ChatGPT desktop app
Open Settings, then MCP servers, then Add server, and choose Streamable HTTP. From the terminal, Codex takes the address with its own add command and then signs you in.
Setup guide (opens in a new tab)Grok
Open grok.com/connectors, choose New Connector, then Custom, and paste the address. Grok signs you in in your browser.
Setup guide (opens in a new tab)Any other MCP client
Paste the address where the client asks for a remote MCP server URL, and name the server apiant-ai where it lets you. APIANT's skills reach the client over the same connection.
Setup guide (opens in a new tab)Example flows
What PostGrid Print & Mail can start in Signatureapi
When New Cheque in PostGrid Print & Mail
then Add ceremony in Signatureapi
Starting points drawn from the triggers and actions in the catalog today. Describe the flow you need, at any depth, and your agent builds it and tests every scenario before it ships.
Everything your agent can do with PostGrid Print & Mail and Signatureapi
Triggers and actions 4 triggers · 32 actions
- New Cheque
Triggers when a new cheque is created in PostGrid.
- New Contact
Triggers when a new contact is created in PostGrid.
- New Letter
Triggers when a new letter is created in PostGrid.
- New Postcard
Triggers when a new postcard is created in PostGrid.
- Cancel Cheque
Cancels a PostGrid cheque that has not yet been printed.
- Cancel Letter
Cancels a PostGrid letter that has not yet been printed.
- Cancel Postcard
Cancels a PostGrid postcard that has not yet been printed.
- Create Cheque
Creates and mails a printed cheque through PostGrid, drawn on one of your saved bank accounts.
- Create Contact
Creates a contact (a mailing address) in PostGrid that letters, postcards and cheques can be sent to or from.
- Create Letter
Creates and sends a printed letter through PostGrid, from HTML, a saved template or a PDF link.
- Create Postcard
Creates and sends a printed postcard through PostGrid from front and back HTML, templates or a PDF link.
- Create Self Mailer
Creates and sends a folded self mailer through PostGrid from inside and outside HTML, templates or a PDF link.
- Create Template
Creates a reusable HTML template for PostGrid letters, postcards and self mailers.
- Delete Contact
Deletes a PostGrid contact.
- Find Contacts
Searches PostGrid contacts by a search term and returns the matching contacts.
- Get Cheque
Returns one PostGrid cheque and its delivery status by ID.
- Get Contact
Returns one PostGrid contact and its mailing address by ID.
- Get Letter
Returns one PostGrid letter and its delivery status by ID.
- Get Postcard
Returns one PostGrid postcard and its delivery status by ID.
- Get Self Mailer
Returns one PostGrid self mailer and its delivery status by ID.
- Get Template
Returns one PostGrid HTML template by ID.
- Add ceremony
Creates a new signing ceremony for a recipient. Any previous active ceremony for that recipient is revoked. Returns the ceremony, including its URL when the recipient is authenticated by email code or by your own application.
- Add deliverable
Creates an additional deliverable (signed PDF package) from a completed envelope. The envelope must be completed.
- Add envelope
Creates an envelope with documents and recipients and starts the signing process.
- Add upload
Uploads a PDF, DOCX or PNG file to SignatureAPI and returns a URL you can use as a document source when creating an envelope. Uploads expire after 24 hours.
- Cancel envelope
Cancel an in-progress envelope so remaining recipients can no longer sign.
- Delete envelope
Delete an envelope.
- Get deliverable
Retrieves a deliverable by its ID, including its status and, once generated, a download link for the signed PDF.
- Get envelope
Retrieve a single envelope by id.
- Get recipient
Retrieves a recipient's details, including status, ceremony information and completion timestamp.
- Get upload
Fetches an uploaded file's record by ID: its format, size, hash and expiry. An error occurs if the upload is not found.
- List deliverables
Returns the deliverables (signed PDFs with audit log) of an envelope, earliest first.
- List envelopes
Lists envelopes in the account, most recent first, optionally filtered by status or topic.
- Resend request
Resends the signing request to a recipient who has not yet completed their ceremony, e.g. as a reminder or after a lost or soft-bounced email.
- Update envelope
Update mutable fields (e.g. title, metadata) of an existing envelope.
- Update recipient
Replaces a recipient who has not yet completed with a new person. The original recipient is marked replaced and a new recipient is created with the same type, key, routing position and places.
No trigger or action matches that. Ask your agent to add it: it reads the API documentation and builds what you describe.
Each app on its own
Reviews
What our customers say
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Questions
PostGrid Print & Mail and Signatureapi, answered
What can start an automation from PostGrid Print & Mail?
Any of PostGrid Print & Mail's 4 triggers in the catalog, including New Cheque, New Contact, New Letter and New Postcard. Describe the moment in plain language and your agent picks the right one.
What can your agent do in Signatureapi when something happens in PostGrid Print & Mail?
Any of Signatureapi's 15 actions, including Update envelope, Update recipient, Add ceremony and Add deliverable. Your agent maps the data both ways and tests every scenario before it ships.
Can it also run from Signatureapi to PostGrid Print & Mail?
Signatureapi has no triggers in the catalog today, so automations start in PostGrid Print & Mail. If you need the other direction, ask: your agent reads Signatureapi's API documentation and adds it.
Do I have to build a connector for PostGrid Print & Mail or Signatureapi?
No. Both are in the catalog with their triggers and actions. You describe the automation; your agent builds it, tests every scenario and keeps it running.
Can my AI client use PostGrid Print & Mail and Signatureapi without building an automation?
Yes. With your AI client connected to APIANT, ask it to do something in either app once and it runs that action on the spot. Ask for an automation and your agent builds it, tests every scenario and keeps it running. One connection covers both.
What happens when something fails?
Your agent works that out for you. It plans the failure paths along with the happy path, then tests every scenario before it ships.
Is there a free plan?
Yes. Every plan includes the agent, including free, and building from your own AI client spends no assistant credits.