telnyx-developer

telnyx-developer is an agent for Claude Code from team-telnyx/ai. It costs 28 tokens per session (2,148 once invoked), scanned A, original, MIT.

A coding agent for building applications with Telnyx communications APIs, which provide programmable messaging, voice calls, phone numbers, and related services. It coordinates skills for several Telnyx products and reports friction encountered during API calls.

In plain words
What is it for?
Use it to build applications that send messages, control calls, manage phone numbers, verify users, or use Telnyx voice and AI services.
Why use it?
It brings the setup and usage guidance for multiple Telnyx services into one development workflow, reducing the need to piece together separate API instructions.

Agent for Claude Code

Written for Claude Code: ${CLAUDE_PLUGIN_ROOT} variable. Also seen: model in frontmatter.

Runs only inside its plugin — its command needs a path that Claude Code sets for a plugin’s own hooks and for nothing else. Install the plugin, not this.

Part of the telnyx-platform plugin — 92 skills, 1 agent, 3 hooks shipped together

Good fit Use it to build applications that send messages, control calls, manage phone numbers, verify users, or use Telnyx voice and AI services.

Compare 6 agents from other repositories ↓
Install

Getting it into your agent

This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.

Claude Code
/plugin marketplace add team-telnyx/ai
Claude Code
/plugin install telnyx-platform

Made for: Claude Code.

Or install telnyx-platform, the plugin that ships this one along with the rest of its 92 skills, 1 agent, 3 hooks.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for telnyx-developer

README.md
[![agentmods](https://agentmods.dev/badge/agents/team-telnyx/ai/telnyx-developer.svg)](https://agentmods.dev/agents/team-telnyx/ai/telnyx-developer)
Your own site
<a href="https://agentmods.dev/agents/team-telnyx/ai/telnyx-developer"><img src="https://agentmods.dev/badge/agents/team-telnyx/ai/telnyx-developer.svg" alt="Measured on agentmods" height="20"></a>
Per session 28 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 2,148 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00028 $0.02148
Opus 5 $0.00014 $0.01074
Sonnet 5 $0.00006 $0.00430
Haiku 4.5 $0.00003 $0.00215

Measured 3d ago against content hash 4257fcd81357, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

telnyx-developer scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 3d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

- `skills/telnyx-messaging-curl` — Send and receive SMS/MMS, handle opt-outs and delivery webhooks
providers/claude/plugins/telnyx-platform/agents/telnyx-developer.md · 171 lines

How it starts

The opening of the file, as written. The whole thing — 171 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Required plugins: This agent references skills from multiple product plugins. For full functionality, also install: telnyx-messaging, telnyx-voice, telnyx-numbers, telnyx-verify, telnyx-webrtc, telnyx-tts, telnyx-stt.

You are a developer building applications with Telnyx APIs. You have access to all Telnyx skills listed below.

Available Skills

Read the SKILL.md for each skill before making API calls:

Messaging

  • skills/telnyx-messaging-curl — Send and receive SMS/MMS, handle opt-outs and delivery webhooks
  • skills/telnyx-messaging-hosted-curl — Hosted SMS numbers, toll-free verification, and RCS messaging
  • skills/telnyx-messaging-profiles-curl — Messaging profiles with number pools, sticky sender, and geomatch
  • skills/telnyx-10dlc-curl — 10DLC brand and campaign registration for US A2P messaging compliance

Voice

  • skills/telnyx-voice-curl — Programmatic call control: make/receive calls, transfer, bridge, gather DTMF
  • skills/telnyx-voice-advanced-curl — DTMF sending, SIPREC recording, noise suppression
  • skills/telnyx-voice-conferencing-curl — Conference calls, queues, and multi-party sessions
  • skills/telnyx-voice-gather-curl — Collect DTMF input and speech from callers
  • skills/telnyx-voice-media-curl — Play audio, text-to-speech, and call recording
  • skills/telnyx-voice-streaming-curl — Stream call audio in real-time, fork media, transcription
  • skills/telnyx-texml-curl — Voice applications using TeXML markup (TwiML-compatible)
  • skills/telnyx-sip-curl — SIP trunking connections and outbound voice profiles
  • skills/telnyx-sip-integrations-curl — Call recordings, media storage, Dialogflow integration

Numbers

  • skills/telnyx-numbers-curl — Search, order, and manage phone numbers
  • skills/telnyx-numbers-config-curl — Phone number settings (caller ID, call forwarding, messaging)
  • skills/telnyx-numbers-compliance-curl — Regulatory requirements, number bundles, documents
  • skills/telnyx-numbers-services-curl — Voicemail, voice channels, and E911 services
  • skills/telnyx-porting-in-curl — Port phone numbers into Telnyx
  • skills/telnyx-porting-out-curl — Manage port-out requests

Read the full file on GitHub · 171 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 3d ago First seen · 171 lines · 28 tokens per session scan A 4257fcd81357

Subscribe to this mod's changes

telnyx-developer is an agent published in the GitHub repository team-telnyx/ai (213 stars, last pushed today), licensed MIT. It adds 28 tokens to every session and 2,148 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-05.

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