CallOnline
Give AI agents a secure phone API for compliant outbound calls, lead qualification, structured results, webhooks, OpenAPI, and MCP.
https://callonline.app/Opens ChatGPT on the web or desktop and asks it to use the WebMCP tools available here.
Connect straight to this server’s public endpoint.
https://callonline.app/mcpWe add this server to your workspace, then open Studio — saved access, one connection to many servers, with a history of what ran.
Last probed Sep 14, 2026 · callonline.app
13tools discovered
Place CallOnline call
Prepare, explicitly approve, and idempotently place an outbound AI-to-human CallOnline call after compliance preflight passes.
Get Call Status
Get CallOnline call status and audit events.
Cancel CallOnline call
Prepare, explicitly approve, and idempotently cancel an active CallOnline call owned by the authenticated account.
List Voices
List available CallOnline voice tiers.
List Plans
List App9 credit plans that can fund CallOnline agent calling.
Get Agent Commerce Capabilities
Describe CallOnline agent-commerce capabilities, including Stripe Checkout, UCP/ACP/SPT readiness, and MPP/x402 machine-payment readiness.
Create Purchase Session
Create an App9 Account checkout session for a human to approve a one-time CallOnline credit top-up.
Create Direct Payment Session
Create an App9 Account direct agent-payment session for one-time CallOnline credits using MPP and a Stripe Shared Payment Token.
Get Billing Status
Check whether the current CallOnline account has billing, spend cap, and credit readiness for agent calls.
Get Usage Balance
Get the current App9 credit balance available to CallOnline for this API key account.
Search Documentation
Search the public CallOnline knowledge base and return ranked canonical citations.
Get Documentation
Get a complete published CallOnline guide by document ID, canonical path, or Markdown path.
Get Api Operation
Look up a CallOnline OpenAPI operation and its related public guide.
Get your MCP into directories
A working endpoint is step one. Directory coverage is the coordinated launch across ChatGPT, Claude, Cursor, the MCP Registry, and community indexes.
Directory coverage for brandsGive AI agents a secure phone API for compliant outbound calls, lead qualification, structured results, webhooks, OpenAPI, and MCP.
Use the MCP endpoint listed on this page in your MCP client configuration. One-click install pills support Claude, Cursor, VS Code, and other hosts. Copy the remote MCP URL if your client needs a manual entry.
MCPBundles probed 13 tools on the live server. The tool list on this page reflects what was discovered at the last refresh — connect your client to see the full set available to your session.
No provider sign-in was required during MCPBundles' probe. Your client may still need MCPBundles credentials depending on how you connect.
Operate CallOnline? Verify ownership to take over this directory entry.
This server appears in the MCPBundles directory. Verify you operate it to take over the listing — name, description, logo, contact email, and skill content. We email a 6-digit code to a maintainer address your server publishes in /.well-known/security.txt or /.well-known/mcpbundles.json. Free, takes about a minute.