api.phoneagent.xyz

PhoneAgent — countries with rentable SMS phone numbers for AI agents. Returns 190+ supported countries, each with the number of services offered and the cheapest price tier ($1, $2, or $5 USDC). Add ?service=<alias> (e.g. tg, wa, go, zo for OpenAI, other for any platform) to see which countries carry that service with live price and inventory pool. Companion route GET /services lists all 1,000+ service aliases; GET /services?country=<iso> lists what a single country offers. Pair with POST /rent

TradingLiveeip155:8453Exactvia cdp
Calls · 30d
8↑ 6.9%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 30 snapshots so far.
$0.55
Verified settled volume
55 settlements proven x402 by their on-chain EIP-3009 marker.
$0.010
Listed price
As published in the catalog. Always read the live 402 before paying.
8
Calls · 30d
Upstream's own call count for this endpoint, not ours.
6
Unique payers · 30d
Last called 2026-09-16 06:15Z
Upstream on-chain volume
Reported by the source catalog.
Paid to
0xF6705e3dA2d2f98aFd3944E4a6B0D6Ca931e576A

The 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.

{
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0xF6705e3dA2d2f98aFd3944E4a6B0D6Ca931e576A",
      "amount": "10000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 60
    }
  ],
  "resource": {
    "url": "https://api.phoneagent.xyz/countries",
    "mimeType": "application/json",
    "description": "PhoneAgent — countries with rentable SMS phone numbers for AI agents. Returns 190+ supported countries, each with the number of services offered and the cheapest price tier ($1, $2, or $5 USDC). Add ?service=<alias> (e.g. tg, wa, go, zo for OpenAI, other for any platform) to see which countries carry that service with live price and inventory pool. Companion route GET /services lists all 1,000+ service aliases; GET /services?country=<iso> lists what a single country offers. Pair with POST /rent"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "service": "tg"
          }
        },
        "output": {
          "type": "json",
          "example": [
            {
              "code": "US",
              "name": "USA",
              "services": 296,
              "from_usdc": 1
            }
          ]
        }
      },
      "schema": {
        "type": "object",
        "$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"
                ],
                "type": "string"
              },
              "queryParams": {
                "type": "object"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "array",
                "items": {
                  "type": "object",
                  "properties": {
                    "code": {
                      "type": "string",
                      "description": "ISO 3166-1 alpha-2."
                    },
                    "name": {
                      "type": "string"
                    },
                    "services": {
                      "type": "integer",
                      "description": "Number of distinct services offered in this country."
                    },
                    "from_usdc": {
                      "type": "number",
                      "description": "Cheapest SKU price available here (1, 2, or 5)."
                    }
                  }
                },
                "description": "Supported countries. Each entry carries the ISO code, name, count of services offered, and the cheapest SKU price available there. Add ?service=<code> to get the per-country price and inventory pool for one service. List services with GET /services (filter with ?country=<iso>)."
              }
            }
          }
        }
      }
    }
  },
  "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.

0.01USDC≈ $0.01 USD
on Base · exact scheme

Pay 0.01 USDC on Base to 0xF670…e576A. The signed payment is good for 1 minute.

USD Coin contract
0x8335…02913
Payment window
1 minute
As published
10000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0xF6705e3dA2d2f98aFd3944E4a6B0D6Ca931e576A",
    "amount": "10000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 60
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "queryParams": {
          "service": "tg"
        }
      },
      "output": {
        "type": "json",
        "example": [
          {
            "code": "US",
            "name": "USA",
            "services": 296,
            "from_usdc": 1
          }
        ]
      }
    },
    "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"
              ],
              "type": "string"
            },
            "queryParams": {
              "type": "object"
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "array",
              "items": {
                "type": "object",
                "properties": {
                  "code": {
                    "type": "string",
                    "description": "ISO 3166-1 alpha-2."
                  },
                  "name": {
                    "type": "string"
                  },
                  "services": {
                    "type": "integer",
                    "description": "Number of distinct services offered in this country."
                  },
                  "from_usdc": {
                    "type": "number",
                    "description": "Cheapest SKU price available here (1, 2, or 5)."
                  }
                }
              },
              "description": "Supported countries. Each entry carries the ISO code, name, count of services offered, and the cheapest SKU price available there. Add ?service=<code> to get the per-country price and inventory pool for one service. List services with GET /services (filter with ?country=<iso>)."
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-09-16 06:15Z
Last indexed by Roundhouse
2026-09-24 07:20Z
Last enriched (probe, favicon, geo)
2026-09-12 23:45Z
x402 version
2
Max timeout
60s
Liveness probe
HTTP 402
Report

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. 30 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.

Open skill.md
Show the prompt
Using Roundhouse, look up the x402 service api.phoneagent.xyz 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=api.phoneagent.xyz'
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.phoneagent.xyz/countries, 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. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402,
or use an organization key from https://roundhouseai.io/dashboard/team.

If you do not have Roundhouse tools or skills installed, read
https://roundhouseai.io/skill.md first — it is the whole procedure.