vobiz-phone-numbers

vobiz-phone-numbers is a skill for Claude Code from vobiz-ai/Agent-Skills. It costs 44 tokens per session (1,699 once invoked), scanned A, original, MIT.

An API guide for finding, buying, assigning, unassigning, and releasing Vobiz phone numbers. It covers local, mobile, and toll-free numbers in multiple countries, including number types such as 140-series and 1600-series numbers.

In plain words
What is it for?
Use it to search available numbers, purchase one, view owned numbers, attach or detach one from a SIP trunk, assign it to a sub-account, or release it.
Why use it?
It collects the phone-number operations and required filters, request data, authentication, and path rules in one place. This reduces mistakes when connecting numbers to trunks or customer sub-accounts.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the vobiz plugin — 13 skills, 1 MCP server shipped together

Good fit Use it to search available numbers, purchase one, view owned numbers, attach or detach one from a SIP trunk, assign it to a sub-account, or release it.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/vobiz-ai/agent-skills/vobiz-phone-numbers
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add vobiz-ai/Agent-Skills --skill vobiz-phone-numbers
Clone the repo
git clone --depth 1 https://github.com/vobiz-ai/Agent-Skills

Made for: Claude Code.

Or install vobiz, the plugin that ships this one along with the rest of its 13 skills, 1 MCP server.

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 vobiz-phone-numbers

README.md
[![agentmods](https://agentmods.dev/badge/skills/vobiz-ai/agent-skills/vobiz-phone-numbers/github.svg)](https://agentmods.dev/skills/vobiz-ai/agent-skills/vobiz-phone-numbers)
Your own site
<a href="https://agentmods.dev/skills/vobiz-ai/agent-skills/vobiz-phone-numbers"><img src="https://agentmods.dev/badge/skills/vobiz-ai/agent-skills/vobiz-phone-numbers/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for vobiz-phone-numbers

Your own site · 80×15
<a href="https://agentmods.dev/skills/vobiz-ai/agent-skills/vobiz-phone-numbers"><img src="https://agentmods.dev/badge/skills/vobiz-ai/agent-skills/vobiz-phone-numbers.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 44 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,699 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 $0.00044 $0.01699
Opus 5 $0.00022 $0.00849
Sonnet 5 $0.00009 $0.00340
Haiku 4.5 $0.00004 $0.00170

Measured 12d ago against content hash 41173eec17e3, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

vobiz-phone-numbers 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 12d 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.

curl -s "https://api.vobiz.ai/api/v1/Account/$AUTH_ID/inventory/numbers?country=IN&search=80&per_page=25" \
skills/vobiz-phone-numbers/SKILL.md · 78 lines

How it starts

The opening of the file, as written. The whole thing — 78 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Vobiz Phone Numbers skill

Use this when the user wants to buy a new phone number, attach it to a trunk, hand it to a sub-account, or release it.

Base URL: https://api.vobiz.ai/api/v1. Auth: X-Auth-ID + X-Auth-Token on every request.

Endpoints

Op Method + Path Notes
Search inventory GET /Account/{auth_id}/inventory/numbers Filter by country, search (substring on E.164), page, per_page (max 100)
Purchase POST /Account/{auth_id}/numbers/purchase-from-inventory Body: { "e164": "+91...", "currency": "INR" }. Debits setup_fee + monthly_fee
List owned GET /Account/{auth_id}/numbers Returns items (status, fees, application_id, trunk_group_id). include_subaccounts defaults true for MA_
Assign to trunk POST /Account/{auth_id}/numbers/{phone_number}/assign Body: { "trunk_group_id": "<uuid>" }. Path number must be %2B-encoded
Unassign from trunk DELETE /Account/{auth_id}/numbers/{phone_number}/assign Path number must be %2B-encoded
Assign to sub-account POST /account/{auth_id}/numbers/{e164}/assign-subaccount lowercase account, %2B-encoded. Body: { "sub_account_id": "SA_..." }
Unassign from sub-account DELETE /account/{auth_id}/numbers/{e164}/assign-subaccount lowercase account. 15-day cool-off; admin ?force=true
Release (unrent) DELETE /Account/{auth_id}/numbers/{e164} Permanent — returns to inventory

Casing — copy verbatim

Vobiz is inconsistent here. Match the spec exactly or you get a 404:

  • Capital /Account/: inventory, purchase, list, get, assign/unassign to trunk, release.
  • Lowercase /account/: assign/unassign to a sub-account only — and the path segment is the singular assign-subaccount.

Discover → purchase → assign recipe

# 1. Find an unassigned IN number (status=active, auth_id=NULL only)
curl -s "https://api.vobiz.ai/api/v1/Account/$AUTH_ID/inventory/numbers?country=IN&search=80&per_page=25" \
  -H "X-Auth-ID: $AUTH_ID" -H "X-Auth-Token: $AUTH_TOKEN"

# 2. Purchase by e164 (debits setup_fee + monthly_fee from the balance)
curl -s -X POST "https://api.vobiz.ai/api/v1/Account/$AUTH_ID/numbers/purchase-from-inventory" \
  -H "X-Auth-ID: $AUTH_ID" -H "X-Auth-Token: $AUTH_TOKEN" -H "Content-Type: application/json" \
  -d '{"e164":"+918065551234","currency":"INR"}'

# 3. Route inbound calls to a trunk (note the %2B-encoded +)
curl -s -X POST "https://api.vobiz.ai/api/v1/Account/$AUTH_ID/numbers/%2B918065551234/assign" \
  -H "X-Auth-ID: $AUTH_ID" -H "X-Auth-Token: $AUTH_TOKEN" -H "Content-Type: application/json" \
  -d '{"trunk_group_id":"e3e55a78-1234-5678-90ab-cdef12345678"}'

# 4. (Optional) hand the DID to a sub-account — lowercase /account/, singular segment
curl -s -X POST "https://api.vobiz.ai/api/v1/account/$AUTH_ID/numbers/%2B918065551234/assign-subaccount" \
  -H "X-Auth-ID: $AUTH_ID" -H "X-Auth-Token: $AUTH_TOKEN" -H "Content-Type: application/json" \
  -d '{"sub_account_id":"SA_XXXXXX"}'

Read the full file on GitHub · 78 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. 12d ago First seen · 78 lines · 44 tokens per session scan A 41173eec17e3

Subscribe to this mod's changes

vobiz-phone-numbers is a skill published in the GitHub repository vobiz-ai/Agent-Skills (2 stars, last pushed 23d ago), licensed MIT. It adds 44 tokens to every session and 1,699 once invoked, about $0.0002 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 2026-08-31.

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