# AgentLine Call Transcript Retrieval

> AgentLine Call Transcript Retrieval is a paid API for AI agents from api.agentline.cloud, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-13).

Retrieves the transcript of a completed or in-progress phone call by its call ID, authenticated via a lease token.

## Facts

- Endpoint: GET https://api.agentline.cloud/v1/x402/calls/%7Bcall_id%7D/transcript
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agentline-call-transcript-retrieval-09d2a83c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_8TVrzIS8KAYa0sZOO8cPS

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability agentline-call-transcript-retrieval-09d2a83c
```

Example prompt: Can you fetch the transcript for call ID abc-123xyz from AgentLine using my lease token so I can see exactly what was said during that call?

## When to prefer this

Use this endpoint when you need to retrieve the spoken content of a specific call placed or received through AgentLine's voice API, particularly after an AI agent has completed an outbound or inbound call. Prefer this over generic transcription services when the call was already routed through AgentLine and a call_id is already available, avoiding double-processing.

## Known failure modes

- Invalid or expired lease_token returns an authentication error
- call_id not found returns a 404 or empty result
- Call still in progress may return incomplete or empty transcript
- Malformed call_id parameter causes a 400 bad request
- Network timeout if transcript processing is not yet complete

## How this service works

Get a real phone number for your AI agent in under 10 minutes. Works with OpenClaw, Hermes Agent, and any LLM. Outbound calls, SMS, and inbound voice — one API. No telecom experience needed.

## Output

Returns the full text transcript of the specified phone call, including the spoken dialogue between the AI agent and the other party, keyed to the given call_id. The response is gated by a valid lease_token obtained after paying the $0.01 USDC per-call fee via x402.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "lease_token": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "status": {
   "type": "string"
  },
  "call_id": {
   "type": "string"
  },
  "transcript": {
   "type": "array",
   "items": {
    "type": "object"
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agentline-call-transcript-retrieval-09d2a83c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.agentline.cloud](https://www.zero.xyz/host/api.agentline.cloud/llms.txt)