# Services from api.agentline.cloud on Zero

> api.agentline.cloud serves 11 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/api.agentline.cloud
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/api.agentline.cloud/health.json

## Services

- [AgentLine Credit Purchase (USDC)](https://www.zero.xyz/c/agentline-credit-purchase-usdc-f77c8760/llms.txt): $1/call via x402. Purchase USDC-denominated API credit for the AgentLine voice/SMS platform, enabling AI agents to make outbound calls, send SMS, and receive inbound voice calls.
- [AgentLine Phone Number Renewal](https://www.zero.xyz/c/agentline-phone-number-renewal-015728f2/llms.txt): $2/call via x402. Renews the lease on a wallet-owned phone number for an AI agent, keeping it active for continued voice and SMS use.
- [AgentLine Phone Number Provisioning](https://www.zero.xyz/c/agentline-phone-number-provisioning-b3e72190/llms.txt): $2/call via x402. Provisions a real US phone number for an AI voice agent with configurable TTS voice, greeting, system prompt, and call-transfer settings.
- [AgentLine Voice Call API](https://www.zero.xyz/c/agentline-voice-call-api-1a0f4d23/llms.txt): $0.5/call via x402. Initiates an outbound phone call from a wallet-owned AI agent number to a destination number, billed per call via x402 crypto payment
- [AgentLine Call Transcript Retrieval](https://www.zero.xyz/c/agentline-call-transcript-retrieval-09d2a83c/llms.txt): $0.01/call via x402. Retrieves the transcript of a completed or in-progress phone call by its call ID, authenticated via a lease token.
- [AgentLine Phone Number Provisioning API](https://www.zero.xyz/c/agentline-phone-number-provisioning-api-0159a8ef/llms.txt): $0.01/call via x402. Retrieve and lease a real phone number for an AI agent, enabling outbound calls, inbound voice, and SMS capabilities.
- [AgentLine Voice Events Feed](https://www.zero.xyz/c/agentline-voice-events-feed-ffb88ac1/llms.txt): $0.01/call via x402. Retrieves a paginated list of telephony events (calls, utterances, SMS) for AI agent phone numbers on the AgentLine platform
- [AgentLine Phone Number Lease Renewal (PATCH)](https://www.zero.xyz/c/agentline-phone-number-lease-renewal-patch-d17198ba/llms.txt): $0.01/call via x402. Renews or updates an active phone number lease for an AI agent using a lease token, enabling continued outbound calling, SMS, and inbound voice capabilities.
- [AgentLine Webhook Registration for AI Phone Agent](https://www.zero.xyz/c/agentline-webhook-registration-for-ai-phone-agent-37ccfdf9/llms.txt): $0.01/call via x402. Registers a webhook URL to receive signed event notifications for a wallet-owned AI agent phone number, enabling real-time call and SMS event delivery.
- [AgentLine Billing Top-Up (x402 USDC Payment)](https://www.zero.xyz/c/agentline-billing-top-up-x402-usdc-payment-444aca7c/llms.txt): $5/call via x402. Tops up an AgentLine account balance using a USDC micropayment via the x402 protocol, funding outbound calls, SMS, and inbound voice capabilities for AI agents.
- [AgentLine Webhook Subscription for AI Agent Phone Numbers](https://www.zero.xyz/c/agentline-webhook-subscription-for-ai-agent-phone-numbers-af383c08/llms.txt): $0.01/call via x402. Lists or filters webhook subscriptions associated with owned phone numbers on the AgentLine platform for AI agents

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

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