Integration
Connect Diagrams.so to fastbill
When something happens in Diagrams.so, your agent does the next thing in fastbill. Describe it 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 Diagrams.so and fastbill to do together?
Ask the assistant
Connect your AI client
Give your AI client this address.
https://mcp.apiant.aiAny 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)Example flows
What Diagrams.so can start in fastbill
When New diagram in Diagrams.so
then Add Payment for Invoice in fastbill
When New diagram in Diagrams.so
then Add Payment for Revenue in fastbill
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 Diagrams.so and fastbill
Triggers and actions 1 trigger · 32 actions
Trigger
New diagramFires when a new diagram is created in the account.
Action
Delete diagramDelete a diagram.
Action
Edit diagramEdit an existing diagram with a follow-up natural-language prompt.
Action
Export diagramExport a diagram as draw.io XML or SVG.
Action
Find gallery templatesSearch public community-shared architecture diagram templates in the gallery.
Action
Fix diagram warningApply an automated fix to a flagged Well-Architected warning on a diagram.
Action
Fork gallery templateFork a public gallery template into the account's own diagrams.
Action
Get diagramRetrieve a single diagram by id.
Action
Get diagram versionRetrieve a specific saved version of a diagram.
Action
Get diagram warningsRetrieve the Well-Architected findings and score for a diagram.
Action
Import diagramImport an existing draw.io file as a new diagram.
Action
List diagramsList the diagrams in the account.
Action
List diagram versionsList the saved versions of a diagram.
Action
Relayout diagramStart an automatic re-layout job on a diagram to clean up its arrangement.
Action
Update diagramUpdate a diagram's metadata (name, visibility, tags, etc).
Action
Add Payment for InvoiceAdds full payment for invoice
Action
Add Payment for RevenueAdds full payment for revenue
Action
Create CustomerCreates a new customer in FastBill
Action
Create InvoiceCreates a new invoice
Action
Create OfferCreates a new offer in FastBill
Action
Create RevenueCreates a revenue entry
Action
Delete CustomerDelete a FastBill customer by ID.
Action
Delete InvoiceDelete a FastBill invoice by ID.
Action
Delete OfferDelete a FastBill offer/estimate by ID.
Action
Finalize InvoiceConverts an invoice draft to a final invoice
Action
Get CustomerFetch a single FastBill customer by ID.
Action
Get InvoiceFetch a single FastBill invoice by ID.
Action
Get OfferFetch a single FastBill offer/estimate by ID.
Action
Search CustomerSearch for a Customer
Action
Search InvoiceFind an invoice
Action
Send Invoice by EmailSend an invoice by email
Action
Update CustomerUpdate fields on an existing FastBill customer.
Action
Update InvoiceUpdate fields on an existing (draft) FastBill invoice.
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
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Questions
Diagrams.so and fastbill, answered
What can start an automation from Diagrams.so?
Any of Diagrams.so's 1 trigger in the catalog, including New diagram. Describe the moment in plain language and your agent picks the right one.
What can your agent do in fastbill when something happens in Diagrams.so?
Any of fastbill's 18 actions, including Create Customer, Create Invoice, Create Offer and Create Revenue. Your agent maps the data both ways and tests every scenario before it ships.
Can it also run from fastbill to Diagrams.so?
fastbill has no triggers in the catalog today, so automations start in Diagrams.so. If you need the other direction, ask: your agent reads fastbill's API documentation and adds it.
Do I have to build a connector for Diagrams.so or fastbill?
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.
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.