AgentLine - AI Phone Service
AgentLine gives AI agents real US phone numbers, inbound/outbound voice calls, AI receptionists, transcripts, inbound SMS and live phone events. Use REST or MCP without signup: recharge and save agent_token. This endpoint adds prepaid credit with Base USDC x402 or Tempo MPP. $1 minimum recharge; numbers $2/30 days; connected calls $0.10/min (first-minute minimum, then per-second); inbound SMS $0.02. Other endpoints use prepaid balance and do not accept payments.
MediaLiveeip155:8453Exactvia cdp
TelephonyPhone-numbersVoice-agentsCallsSms
Calls · 30d
5→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 31 snapshots so far.
$22.50
Verified settled volume
6 settlements proven x402 by their on-chain EIP-3009 marker.
$1.00
Listed price
As published in the catalog. Always read the live 402 before paying.
5
Calls · 30d
Upstream's own call count for this endpoint, not ours.
4
Unique payers · 30d
Last called 2026-10-12 15:11Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x4300bdc396a84e5a9e5612e8ef83c1a589732759The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Provider
The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.
Live 402 challenge
Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.
{
"error": "Payment Required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"assetTransferMethod": "eip3009"
},
"payTo": "0x4300bdc396a84e5a9e5612e8ef83c1a589732759",
"amount": "1000000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 60
}
],
"resource": {
"url": "https://api.agentline.cloud/v1/billing/topup/x402/pay",
"tags": [
"telephony",
"phone-numbers",
"voice-agents",
"calls",
"sms"
],
"iconUrl": "https://api.agentline.cloud/favicon.png",
"mimeType": "application/json",
"description": "AgentLine gives AI agents real US phone numbers, inbound/outbound voice calls, AI receptionists, transcripts, inbound SMS and live phone events. Use REST or MCP without signup: recharge and save agent_token. This endpoint adds prepaid credit with Base USDC x402 or Tempo MPP. $1 minimum recharge; numbers $2/30 days; connected calls $0.10/min (first-minute minimum, then per-second); inbound SMS $0.02. Other endpoints use prepaid balance and do not accept payments.",
"serviceName": "AgentLine - AI Phone Service"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"amount": 1
}
},
"output": {
"type": "json",
"example": {
"status": "settled",
"network": "eip155:8453",
"amount_usd": 1,
"access_mode": "wallet_agent",
"agent_token": "agent_...",
"new_balance": 1,
"owner_wallet": "payer address",
"payment_protocol": "x402"
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"type": "object",
"properties": {
"amount": {
"type": "number",
"default": 1,
"maximum": 1000,
"minimum": 1,
"multipleOf": 0.01,
"description": "USD prepaid recharge amount; optional, defaults to $1."
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"status",
"amount_usd",
"access_mode",
"payment_protocol",
"network"
],
"properties": {
"status": {
"type": "string"
},
"network": {
"type": "string"
},
"tx_hash": {
"type": "string"
},
"amount_usd": {
"type": "number"
},
"access_mode": {
"enum": [
"wallet_agent",
"signup_account"
],
"type": "string"
},
"agent_token": {
"type": "string"
},
"new_balance": {
"type": "number"
},
"owner_wallet": {
"type": "string"
},
"payment_protocol": {
"enum": [
"x402",
"mpp"
],
"type": "string"
}
}
}
}
}
}
}
}
},
"how_to_pay": {
"method": "GET",
"mpp_header": "Payment-Authorization",
"x402_header": "PAYMENT-SIGNATURE",
"retry_this_url": "https://api.agentline.cloud/v1/billing/topup/x402/pay"
},
"onboarding": {
"docs": "https://api.agentline.cloud/.well-known/agent-payments.json",
"save": "agent_token",
"signup_required": false
},
"description": "AgentLine gives AI agents real US phone numbers, inbound/outbound voice calls, AI receptionists, transcripts, inbound SMS and live phone events. Use REST or MCP without signup: recharge and save agent_token. This endpoint adds prepaid credit with Base USDC x402 or Tempo MPP. $1 minimum recharge; numbers $2/30 days; connected calls $0.10/min (first-minute minimum, then per-second); inbound SMS $0.02. Other endpoints use prepaid balance and do not accept payments.",
"x402Version": 2,
"payment_required": {
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"assetTransferMethod": "eip3009"
},
"payTo": "0x4300bdc396a84e5a9e5612e8ef83c1a589732759",
"amount": "1000000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 60
}
],
"resource": {
"url": "https://api.agentline.cloud/v1/billing/topup/x402/pay",
"tags": [
"telephony",
"phone-numbers",
"voice-agents",
"calls",
"sms"
],
"iconUrl": "https://api.agentline.cloud/favicon.png",
"mimeType": "application/json",
"description": "AgentLine gives AI agents real US phone numbers, inbound/outbound voice calls, AI receptionists, transcripts, inbound SMS and live phone events. Use REST or MCP without signup: recharge and save agent_token. This endpoint adds prepaid credit with Base USDC x402 or Tempo MPP. $1 minimum recharge; numbers $2/30 days; connected calls $0.10/min (first-minute minimum, then per-second); inbound SMS $0.02. Other endpoints use prepaid balance and do not accept payments.",
"serviceName": "AgentLine - AI Phone Service"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"amount": 1
}
},
"output": {
"type": "json",
"example": {
"status": "settled",
"network": "eip155:8453",
"amount_usd": 1,
"access_mode": "wallet_agent",
"agent_token": "agent_...",
"new_balance": 1,
"owner_wallet": "payer address",
"payment_protocol": "x402"
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"type": "object",
"properties": {
"amount": {
"type": "number",
"default": 1,
"maximum": 1000,
"minimum": 1,
"multipleOf": 0.01,
"description": "USD prepaid recharge amount; optional, defaults to $1."
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"status",
"amount_usd",
"access_mode",
"payment_protocol",
"network"
],
"properties": {
"status": {
"type": "string"
},
"network": {
"type": "string"
},
"tx_hash": {
"type": "string"
},
"amount_usd": {
"type": "number"
},
"access_mode": {
"enum": [
"wallet_agent",
"signup_account"
],
"type": "string"
},
"agent_token": {
"type": "string"
},
"new_balance": {
"type": "number"
},
"owner_wallet": {
"type": "string"
},
"payment_protocol": {
"enum": [
"x402",
"mpp"
],
"type": "string"
}
}
}
}
}
}
}
}
},
"x402Version": 2
}
}Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
1USDC≈ $1 USD
on Base · exact scheme
Pay 1 USDC on Base to 0x4300…32759. The signed payment is good for 1 minute.
- Paid to
- 0x4300…32759
- USD Coin contract
- 0x8335…02913
- Payment window
- 1 minute
- As published
- 1000000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"assetTransferMethod": "eip3009"
},
"payTo": "0x4300bdc396a84e5a9e5612e8ef83c1a589732759",
"amount": "1000000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 60
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"amount": 1
}
},
"output": {
"type": "json",
"example": {
"status": "settled",
"network": "eip155:8453",
"amount_usd": 1,
"access_mode": "wallet_agent",
"agent_token": "agent_...",
"new_balance": 1,
"owner_wallet": "payer address",
"payment_protocol": "x402"
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"type": "object",
"properties": {
"amount": {
"type": "number",
"default": 1,
"maximum": 1000,
"minimum": 1,
"multipleOf": 0.01,
"description": "USD prepaid recharge amount; optional, defaults to $1."
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"status",
"amount_usd",
"access_mode",
"payment_protocol",
"network"
],
"properties": {
"status": {
"type": "string"
},
"network": {
"type": "string"
},
"tx_hash": {
"type": "string"
},
"amount_usd": {
"type": "number"
},
"access_mode": {
"enum": [
"wallet_agent",
"signup_account"
],
"type": "string"
},
"agent_token": {
"type": "string"
},
"new_balance": {
"type": "number"
},
"owner_wallet": {
"type": "string"
},
"payment_protocol": {
"enum": [
"x402",
"mpp"
],
"type": "string"
}
}
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-10-12 15:11Z
- Last indexed by Roundhouse
- 2026-10-26 15:00Z
- Last enriched (probe, favicon, geo)
- 2026-10-02 10:45Z
- x402 version
- 2
- Max timeout
- 60s
- Liveness probe
- HTTP 402
Hand this page to an agent
Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.
GET api.roundhouseai.io/v0/endpoints
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 31 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service AgentLine - AI Phone Service and tell me whether it is worth paying: what a call costs, whether the endpoint answered when last probed, and what its payment record actually shows. curl -s 'https://api.roundhouseai.io/v0/endpoints?q=AgentLine%20-%20AI%20Phone%20Service' curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>' Then call it: read the price from the live 402 at https://api.agentline.cloud/v1/billing/topup/x402/pay, never from a cached figure, and pay with an x402 client. The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except /v0/unified* and /v0/endpoints. Either pay over x402 (mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at https://roundhouseai.io/dashboard/connections. If you have neither, ask before going further. If you do not have Roundhouse tools or skills installed, read https://roundhouseai.io/skill.md first — it is the whole procedure.