# Send AgentCall to your agent
Hand the extracted package to your coding agent with a concrete install brief instead of figuring it out manually.
## Fast path
- Download the package from Yavira.
- Extract it into a folder your agent can access.
- Paste one of the prompts below and point your agent at the extracted folder.
## Suggested prompts
### New install

```text
I downloaded a skill package from Yavira. Read SKILL.md from the extracted folder and install it by following the included instructions. Tell me what you changed and call out any manual steps you could not complete.
```
### Upgrade existing

```text
I downloaded an updated skill package from Yavira. Read SKILL.md from the extracted folder, compare it with my current installation, and upgrade it while preserving any custom configuration unless the package docs explicitly say otherwise. Summarize what changed and any follow-up checks I should run.
```
## Machine-readable fields
```json
{
  "schemaVersion": "1.0",
  "item": {
    "slug": "agentcall",
    "name": "AgentCall",
    "source": "tencent",
    "type": "skill",
    "category": "开发工具",
    "sourceUrl": "https://clawhub.ai/Kintupercy/agentcall",
    "canonicalUrl": "https://clawhub.ai/Kintupercy/agentcall",
    "targetPlatform": "OpenClaw"
  },
  "install": {
    "downloadUrl": "/downloads/agentcall",
    "sourceDownloadUrl": "https://wry-manatee-359.convex.site/api/v1/download?slug=agentcall",
    "sourcePlatform": "tencent",
    "targetPlatform": "OpenClaw",
    "packageFormat": "ZIP package",
    "primaryDoc": "SKILL.md",
    "includedAssets": [
      "claw.json",
      "instructions.md",
      "SKILL.md"
    ],
    "downloadMode": "redirect",
    "sourceHealth": {
      "source": "tencent",
      "slug": "agentcall",
      "status": "healthy",
      "reason": "direct_download_ok",
      "recommendedAction": "download",
      "checkedAt": "2026-04-29T13:48:28.124Z",
      "expiresAt": "2026-05-06T13:48:28.124Z",
      "httpStatus": 200,
      "finalUrl": "https://wry-manatee-359.convex.site/api/v1/download?slug=agentcall",
      "contentType": "application/zip",
      "probeMethod": "head",
      "details": {
        "probeUrl": "https://wry-manatee-359.convex.site/api/v1/download?slug=agentcall",
        "contentDisposition": "attachment; filename=\"agentcall-2.0.4.zip\"",
        "redirectLocation": null,
        "bodySnippet": null,
        "slug": "agentcall"
      },
      "scope": "item",
      "summary": "Item download looks usable.",
      "detail": "Yavira can redirect you to the upstream package for this item.",
      "primaryActionLabel": "Download for OpenClaw",
      "primaryActionHref": "/downloads/agentcall"
    },
    "validation": {
      "installChecklist": [
        "Use the Yavira download entry.",
        "Review SKILL.md after the package is downloaded.",
        "Confirm the extracted package contains the expected setup assets."
      ],
      "postInstallChecks": [
        "Confirm the extracted package includes the expected docs or setup files.",
        "Validate the skill or prompts are available in your target agent workspace.",
        "Capture any manual follow-up steps the agent could not complete."
      ]
    }
  },
  "links": {
    "detailUrl": "https://openagent3.xyz/skills/agentcall",
    "downloadUrl": "https://openagent3.xyz/downloads/agentcall",
    "agentUrl": "https://openagent3.xyz/skills/agentcall/agent",
    "manifestUrl": "https://openagent3.xyz/skills/agentcall/agent.json",
    "briefUrl": "https://openagent3.xyz/skills/agentcall/agent.md"
  }
}
```
## Documentation

### AgentCall — Phone Numbers for AI Agents

You have access to the AgentCall API for phone numbers, SMS, voice calls, and AI voice calls.

### Authentication

All requests require: Authorization: Bearer <AGENTCALL_API_KEY>

The API key is available in the AGENTCALL_API_KEY environment variable.

### Base URL

https://api.agentcall.co

For a complete plain-text API reference: GET https://api.agentcall.co/llms.txt

### Phone Numbers

Provision a number:

POST /v1/numbers/provision
Body: { "type": "local", "country": "US", "label": "my-agent" }
Types: local ($2/mo), tollfree ($4/mo), mobile ($3/mo), sim ($8/mo, Pro only)
Response: { "id": "num_xxx", "number": "+12125551234", "type": "local", ... }

List numbers:

GET /v1/numbers
Query: ?limit=20&country=US&type=local

Get number details:

GET /v1/numbers/:id

Release a number (irreversible):

DELETE /v1/numbers/:id

### SMS

Send SMS:

POST /v1/sms/send
Body: { "from": "num_xxx", "to": "+14155551234", "body": "Hello!" }
"from" can be a number ID or E.164 phone string

Get inbox:

GET /v1/sms/inbox/:numberId
Query: ?limit=20&otpOnly=true

Get a specific message:

GET /v1/sms/:messageId

Wait for OTP code (long-polls up to 60 seconds):

GET /v1/sms/otp/:numberId
Query: ?timeout=60000
Response: { "otp": "482913", "message": { ... } }

### Voice Calls

Start an outbound call:

POST /v1/calls/initiate
Body: { "from": "num_xxx", "to": "+14155551234", "record": false }

Start an AI voice call (Pro plan, $0.20/min):
The AI handles the entire conversation autonomously based on your systemPrompt.

POST /v1/calls/ai
Body: {
  "from": "num_xxx",
  "to": "+14155551234",
  "systemPrompt": "You are calling to schedule a dentist appointment for Tuesday afternoon.",
  "voice": "alloy",
  "firstMessage": "Hi, I'd like to schedule an appointment please.",
  "maxDurationSecs": 600
}
Voices (pick based on user's desired tone):
- alloy: neutral, balanced (default)
- ash: warm, conversational
- ballad: expressive, melodic
- coral: clear, professional
- echo: resonant, deep
- sage: calm, authoritative, confident
- shimmer: bright, energetic
- verse: smooth, articulate

List call history:

GET /v1/calls
Query: ?limit=20

Get call details:

GET /v1/calls/:callId

Get AI call transcript:

GET /v1/calls/:callId/transcript
Response: { "entries": [{ "role": "assistant", "text": "...", "timestamp": "..." }], "summary": "..." }

Hang up an active call:

POST /v1/calls/:callId/hangup

### Webhooks

Register a webhook:

POST /v1/webhooks
Body: { "url": "https://example.com/hook", "events": ["sms.inbound", "sms.otp", "call.status"] }
Events: sms.inbound, sms.otp, call.inbound, call.ringing, call.status, call.recording, number.released

List webhooks:

GET /v1/webhooks

Rotate webhook secret:

POST /v1/webhooks/:id/rotate

Delete a webhook:

DELETE /v1/webhooks/:id

### Usage & Billing

Get usage breakdown:

GET /v1/usage
Query: ?period=2026-02

### Phone Number Format

All phone numbers must be E.164: +{country code}{number}, e.g. +14155551234

### Test your app's SMS verification (QA)

POST /v1/numbers/provision with { "type": "local" } — get a test number
Enter the number into your staging app's verification form
GET /v1/sms/otp/:numberId?timeout=60000 — wait for the verification code
Assert the code arrives and your app accepts it
DELETE /v1/numbers/:id — release the test number

### AI voice call

POST /v1/numbers/provision with { "type": "local" } — get a number (if you don't have one)
POST /v1/calls/ai with { "from": "num_xxx", "to": "+1...", "systemPrompt": "..." } — start the call
Wait for the call to complete
GET /v1/calls/:callId/transcript — get the full conversation transcript

### Error Codes

401: Invalid or missing API key
403 plan_limit: Plan limit reached (upgrade to Pro at agentcall.co/dashboard)
404: Resource not found
422: Validation error (check request body)
429: Rate limit exceeded (100 req/min)
## Trust
- Source: tencent
- Verification: Indexed source record
- Publisher: Kintupercy
- Version: 2.0.2
## Source health
- Status: healthy
- Item download looks usable.
- Yavira can redirect you to the upstream package for this item.
- Health scope: item
- Reason: direct_download_ok
- Checked at: 2026-04-29T13:48:28.124Z
- Expires at: 2026-05-06T13:48:28.124Z
- Recommended action: Download for OpenClaw
## Links
- [Detail page](https://openagent3.xyz/skills/agentcall)
- [Send to Agent page](https://openagent3.xyz/skills/agentcall/agent)
- [JSON manifest](https://openagent3.xyz/skills/agentcall/agent.json)
- [Markdown brief](https://openagent3.xyz/skills/agentcall/agent.md)
- [Download page](https://openagent3.xyz/downloads/agentcall)