Build solutions, not workarounds.
What do you want CallFire and E2B 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)Example flows
What CallFire can start in E2B
When New call in CallFire
then Add file in E2B
When New contact in CallFire
then Get file in E2B
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 CallFire and E2B
Triggers and actions 4 triggers · 25 actions
Trigger
New callPolls for completed calls. Fires for each new inbound or outbound call.
Trigger
New contactPolls for newly created contacts in the account.
Trigger
New SMS text receivedPolls for inbound SMS text messages. Fires for each newly received text.
Trigger
New text sentPolls for outbound SMS text messages. Fires for each newly sent text.
Action
Add new contactCreates a new contact in CallFire and returns its ID.
Action
Delete contactDeletes a contact by its CallFire contact ID.
Action
Get contact by IDRetrieves a single contact by its CallFire contact ID.
Action
Get contact by propertyGet contact details by property name and value.
Action
Get text messageRetrieves a single sent or received text message by its ID.
Action
List contact listsReturns all contact lists in the account.
Action
Remove contact from listRemoves a contact (by contact ID) from a specified contact list.
Action
Send SMS text messageSends an SMS text message to one phone number and returns the new text's ID and state.
Action
Send voice callPlaces a text-to-speech voice call to one phone number and returns the new call's ID and state.
Action
Update contactUpdates an existing contact by its CallFire contact ID.
Action
Add directoryCreate a directory inside a running E2B sandbox.
Action
Add fileUpload a file into a sandbox filesystem, creating parent directories as needed.
Action
Add sandboxCreate a new E2B sandbox from a template, with optional metadata, timeout, and env vars.
Action
Add templateRequest a new E2B sandbox template build.
Action
Delete fileDelete a file or directory inside a running E2B sandbox.
Action
Delete sandboxShut down a running E2B sandbox.
Action
Get fileRead the contents of a file inside a running E2B sandbox.
Action
Get sandboxLook up one E2B sandbox by id.
Action
Get sandbox logsRead the logs of a running E2B sandbox.
Action
List directoryList what a directory contains inside a running E2B sandbox.
Action
List sandboxesList the sandboxes in your E2B team.
Action
List templatesList the sandbox templates available to your E2B team.
Action
Pause sandboxPause a running E2B sandbox so it can be resumed later.
Action
Resume sandboxResume a paused E2B sandbox, or extend a running one's lifetime.
Action
Update sandbox timeoutChange how much longer an E2B sandbox stays alive.
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
CallFire and E2B, answered
What can start an automation from CallFire?
Any of CallFire's 4 triggers in the catalog, including New call, New contact, New SMS text received and New text sent. Describe the moment in plain language and your agent picks the right one.
What can your agent do in E2B when something happens in CallFire?
Any of E2B's 15 actions, including Update sandbox timeout, Add directory, Add file and Add sandbox. Your agent maps the data both ways and tests every scenario before it ships.
Can it also run from E2B to CallFire?
E2B has no triggers in the catalog today, so automations start in CallFire. If you need the other direction, ask: your agent reads E2B's API documentation and adds it.
Do I have to build a connector for CallFire or E2B?
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 CallFire and E2B 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.