phone.telnyx.sms_world
⚡ ACTION: Send SMS to most international destinations: UK +44, EU (DE/FR/IT/ES/NL/PL...), AU +61, JP +81, IN +91, BR +55, MX +52, ZA +27, IL +972, AE +971, SG +65, KR +82. $0.10/message. Returns 400 if destination is in NA tier (use telnyx.send_sms_na) or premium tier (use telnyx.send_sms_premium...
This record as markdown: /tools/io-github-whiteknightonhorse-apibase/phone.telnyx.sms-world.md
What phone.telnyx.sms_world does on Apibase
AI agents invoke phone.telnyx.sms_world to trigger actions in Apibase. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.
| Parameter | Type | Required | Description |
|---|---|---|---|
to | string | Yes | Recipient phone number in E.164 format (e.g. "+14155551234"). Trial accounts can only send to verified destination numbers added in the Telnyx portal. |
from | string | Yes | Sender phone number in E.164 format — must be a Telnyx number you own (e.g. "+15551234567"). Provision via Telnyx portal Numbers > Buy Numbers. |
text | string | Yes | SMS body text (max 1600 chars; >160 splits into multiple billing segments). |
messaging_profile_id | string | — | Optional Telnyx messaging profile UUID to route through a specific profile (10DLC campaign, sender pool). |
Parameters from the server's own tool schema.
Why phone.telnyx.sms_world is rated High
Triggers external SMS messages to international numbers, incurring per-message financial costs.
From the tool's definition Send SMS to most international destinations, $0.10/message
Attacks that exploit this kind of access
The rule that runs phone.telnyx.sms_world safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Apibase, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For phone.telnyx.sms_world, this is the rule to start with:
phone.telnyx.sms_world stays usable, but rate-capped: a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Apibase, apply this rule, and every phone.telnyx.sms_world call is checked against it from then on.
Questions about phone.telnyx.sms_world
⚡ ACTION: Send SMS to most international destinations: UK +44, EU (DE/FR/IT/ES/NL/PL...), AU +61, JP +81, IN +91, BR +55, MX +52, ZA +27, IL +972, AE +971, SG +65, KR +82. $0.10/message. Returns 400 if destination is in NA tier (use telnyx.send_sms_na) or premium tier (use telnyx.send_sms_premium) (Telnyx). It is categorised as a Execute tool in the Apibase MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
phone.telnyx.sms_world accepts 4 parameters: to, from, text, messaging_profile_id. Required: to, from, text. The full parameter table on this page comes from the server's own tool schema.
Register the Apibase MCP server in PolicyLayer and add a rule for phone.telnyx.sms_world: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Apibase. Nothing to install.
phone.telnyx.sms_world is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.
Yes. Add a rate_limit block to the phone.telnyx.sms_world rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for phone.telnyx.sms_world. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
phone.telnyx.sms_world is provided by the Apibase MCP server (apibase-mcp-client). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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