Integration
Connect HelloSign to Anthropic
When New Signature Request fires in HelloSign, your agent runs Anthropic agent message in Anthropic. 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 HelloSign and Anthropic 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)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)HelloSign handles the signing, Anthropic handles the reading. Connect them and every new signature request in HelloSign can be passed to Claude for a plain summary of terms, obligations and dates, with the document link pulled from HelloSign and reminders sent to signers who have not acted yet.
Example flows
What HelloSign can start in Anthropic
When New Signature Request in HelloSign
then Anthropic agent message in Anthropic
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 HelloSign and Anthropic
Triggers and actions 1 trigger · 17 actions
- New Signature Request
Triggers when a new signature request appears in the account.
- Cancel Signature Request
Cancels an incomplete signature request.
- Get Account
Returns information about the current Dropbox Sign account.
- Get Signature Request
Retrieves a single signature request by its ID.
- Get Signature Request Files
Returns a download URL for the documents of a signature request as a PDF.
- List Signature Requests
Lists signature requests for the account, paginated and ordered newest first.
- List Templates
Lists the reusable templates available to the account.
- Send Reminder
Sends an email reminder to a signer to sign a pending signature request.
- Send Signature Request
Creates and sends a new signature request using document file URLs and a list of signers.
- Anthropic agent message
Runs one AI agent turn on Anthropic and returns the model's reply. The turn is billed to the Anthropic account connected on this step, and the agent can call the account's AI tool automations.
- Cancel message batch
Cancel a Message Batch that is still processing.
- Count tokens in a message
Count the number of input tokens a Messages API request would use, without creating the message.
- Create message batch
Submit a batch of Messages API requests for asynchronous processing.
- Get message batch
Retrieve the status and request counts of a Message Batch by id.
- Get model
Retrieve details for a specific Claude model by id.
- List message batches
List Message Batches in the workspace, most recently created first.
- List models
List the available Claude models, most recently released first.
- Send model a message
Send a message to a Claude model and return its response. Supports the full Messages API: model, system prompt, multi-turn messages, max_tokens, tools, and adaptive thinking.
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
HelloSign and Anthropic, answered
Can Claude actually read the document behind a HelloSign signature request?
HelloSign can return a download URL for the documents of a signature request as a PDF, and that link plus the request details can be passed into a message to a Claude model. What Claude receives is what you choose to include in the message you send.
Does anything flow back from Anthropic into HelloSign?
Yes. After a Claude reply comes back, the same run can continue in HelloSign, for example sending a reminder to a signer on a pending request or cancelling an incomplete signature request.
What can start an automation from HelloSign?
Any of HelloSign's 1 trigger in the catalog, including New Signature Request. Describe the moment in plain language and your agent picks the right one.
What can your agent do in Anthropic when something happens in HelloSign?
Any of Anthropic's 9 actions, including Anthropic agent message, Count tokens in a message, Create message batch and List models. Your agent maps the data both ways and tests every scenario before it ships.
Can it also run from Anthropic to HelloSign?
Anthropic has no triggers in the catalog today, so automations start in HelloSign. If you need the other direction, ask: your agent reads Anthropic's API documentation and adds it.
Do I have to build a connector for HelloSign or Anthropic?
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 HelloSign and Anthropic 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.