Messages premium

Name: Messages premium
Price: 0.5 USDC
Availability: InStock

Agentic Finance for AI agents: 500+ pay-per-call tools, metered models and finished reports over x402 and MPP, or by card. No signup, no API keys.

InferenceLiveeip155:8453Exactvia cdp

https://agent402.tools/v1/premium/messages

LlmAiInferenceAnthropic-compatibleMessages-api

Calls · 30d

This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 13 snapshots so far.

$48.55

Verified settled volume

A floor: summed over 5,000 of 31,632 verified settlements.

$0.500

Listed price

As published in the catalog. Always read the live 402 before paying.

Calls · 30d

Upstream's own call count for this endpoint, not ours.

Unique payers · 30d

Last called 2026-09-18 15:54Z

—

Upstream on-chain volume

Reported by the source catalog.

Paid to

0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0

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.

Accepts

The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.

0.5USDC≈ $0.5 USD

on Base · exact scheme

Pay 0.5 USDC on Base to 0xaBF4…2a9D0. The signed payment is good for 5 minutes.

Paid to: 0xaBF4…2a9D0
USD Coin contract: 0x8335…02913
Payment window: 5 minutes
As published: 500000 smallest units

500000units

on Polygon · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Paid to: 0xaBF4…2a9D0
Token contract: 0x3c49…c3359
Payment window: 5 minutes

500000units

on Arbitrum · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Paid to: 0xaBF4…2a9D0
Token contract: 0xaf88…e5831
Payment window: 5 minutes

500000units

on eip155:143 · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Paid to: 0xaBF4…2a9D0
Token contract: 0x7547…fb603
Payment window: 5 minutes

500000units

on eip155:43114 · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Paid to: 0xaBF4…2a9D0
Token contract: 0xB97E…48a6E
Payment window: 5 minutes

500000units

on eip155:1329 · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Paid to: 0xaBF4…2a9D0
Token contract: 0xe15f…42392
Payment window: 5 minutes

501000units

on Optimism · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Paid to: 0xaBF4…2a9D0
Token contract: 0x0b2C…7Ff85
Payment window: 5 minutes

500000units

on eip155:4663 · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Paid to: 0xaBF4…2a9D0
Token contract: 0x5fc5…1d168
Payment window: 5 minutes

500000units

on eip155:42220 · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Paid to: 0xaBF4…2a9D0
Token contract: 0xcebA…2118C
Payment window: 5 minutes

0.5USDC≈ $0.5 USD

on Base · upto scheme

Pay 0.5 USDC on Base to 0xaBF4…2a9D0. The signed payment is good for 5 minutes.

Paid to: 0xaBF4…2a9D0
USD Coin contract: 0x8335…02913
Payment window: 5 minutes
As published: 500000 smallest units

500000units

on solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Paid to: J7aN3P…v3xwg
Token contract: EPjFWd…TDt1v
Payment window: 5 minutes

5000000units

on stellar:pubnet · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Paid to: GDNJXC…JWWRL
Token contract: CCW67T…JMI75
Payment window: 5 minutes

500000units

on algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8= · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Paid to: C7IIHG…Y2XIE
Token contract: 31566704
Payment window: 5 minutes

The catalog’s raw entry

[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
    "amount": "500000",
    "scheme": "exact",
    "network": "eip155:8453",
    "outputSchema": {
      "type": "object",
      "required": [
        "id",
        "type",
        "role",
        "model",
        "content",
        "stop_reason",
        "usage"
      ],
      "properties": {
        "id": {
          "type": "string"
        },
        "role": {
          "type": "string"
        },
        "type": {
          "type": "string"
        },
        "model": {
          "type": "string"
        },
        "usage": {
          "type": "object",
          "properties": {
            "input_tokens": {
              "type": "integer"
            },
            "output_tokens": {
              "type": "integer"
            }
          }
        },
        "content": {
          "type": "array",
          "items": {
            "type": "object",
            "properties": {
              "text": {
                "type": "string"
              },
              "type": {
                "type": "string"
              }
            }
          }
        },
        "stop_reason": {
          "type": "string"
        }
      }
    },
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
    "amount": "500000",
    "scheme": "exact",
    "network": "eip155:137",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
    "amount": "500000",
    "scheme": "exact",
    "network": "eip155:42161",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "0x754704Bc059F8C67012fEd69BC8A327a5aafb603",
    "extra": {
      "name": "USDC",
      "version": "2"
    },
    "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
    "amount": "500000",
    "scheme": "exact",
    "network": "eip155:143",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "0xB97EF9Ef8734C71904D8002F8b6Bc66Dd9c48a6E",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
    "amount": "500000",
    "scheme": "exact",
    "network": "eip155:43114",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "0xe15fC38F6D8c56aF07bbCBe3BAf5708A2Bf42392",
    "extra": {
      "name": "USDC",
      "version": "2"
    },
    "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
    "amount": "500000",
    "scheme": "exact",
    "network": "eip155:1329",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "0x0b2C639c533813f4Aa9D7837CAf62653d097Ff85",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
    "amount": "501000",
    "scheme": "exact",
    "network": "eip155:10",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168",
    "extra": {
      "name": "Global Dollar",
      "version": "1"
    },
    "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
    "amount": "500000",
    "scheme": "exact",
    "network": "eip155:4663",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "0xcebA9300f2b948710d2653dD7B07f33A8B32118C",
    "extra": {
      "name": "USDC",
      "version": "2"
    },
    "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
    "amount": "500000",
    "scheme": "exact",
    "network": "eip155:42220",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2",
      "facilitatorAddress": "0xCA5e87f82B3FA093800e6ad67D621A427D79c70D",
      "assetTransferMethod": "permit2"
    },
    "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
    "amount": "500000",
    "scheme": "upto",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "extra": {
      "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
    },
    "payTo": "J7aN3PLJnTCF5qpEnvJHJsnCjcGuqC2rYtEM8Gv3xwg",
    "amount": "500000",
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "CCW67TSZV3SSS2HXMBQ5JFGCKJNXKZM7UQUWUZPUTHXSTZLEO7SJMI75",
    "extra": {
      "areFeesSponsored": true
    },
    "payTo": "GDNJXCKW7ZM7GEEVP674TWPU26YJNBQ2FI4ZIPRKTPTNUEJMDHFJWWRL",
    "amount": "5000000",
    "scheme": "exact",
    "network": "stellar:pubnet",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "31566704",
    "extra": {
      "tag": "x402-global-challenge",
      "feePayer": "ZMFK2OI7ZBD2U27ISERZC4S6LKM6WMFJPZQ4MYNJDZ2VNBNMBA67RA22AA"
    },
    "payTo": "C7IIHG7SPLPZ5H7ZT6HW3UV2OQMQQE6Y2HBNGZXSLRJULE42BEE2OY2XIE",
    "amount": "500000",
    "scheme": "exact",
    "network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "model": "anthropic/claude-opus-5",
          "messages": [
            {
              "role": "user",
              "content": "Summarize x402 in one sentence."
            }
          ],
          "max_tokens": 256
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "id": "msg_…",
          "role": "assistant",
          "type": "message",
          "model": "anthropic/claude-sonnet-5",
          "usage": {
            "input_tokens": 14,
            "output_tokens": 18
          },
          "content": [
            {
              "text": "x402 is an HTTP-native way for agents to pay per request with USDC.",
              "type": "text"
            }
          ],
          "stop_reason": "end_turn"
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method",
            "bodyType",
            "body"
          ],
          "properties": {
            "body": {
              "required": [
                "max_tokens",
                "messages"
              ],
              "properties": {
                "zdr": {
                  "type": "boolean",
                  "description": "Optional - zero-data-retention providers only"
                },
                "model": {
                  "type": "string",
                  "description": "Model id (OpenRouter naming, e.g. anthropic/claude-sonnet-5) - allowlisted per tier; omit (or \"auto\") on the auto tier"
                },
                "tools": {
                  "type": "array",
                  "description": "Optional client tools {name, description, input_schema}; server/built-in tools are not served"
                },
                "effort": {
                  "type": "string",
                  "description": "Optional depth control for Claude 4.7+ (Opus 5, Sonnet 5, Fable 5.1): low | medium | high | xhigh | max, validated against the model's own list (GET /v1/models). Not accepted on Haiku 4.5 and older, which take thinking.budget_tokens instead"
                },
                "stream": {
                  "type": "boolean",
                  "description": "Anthropic SSE (message_start … message_stop)"
                },
                "system": {
                  "type": "string",
                  "description": "Optional system prompt (string or text blocks)"
                },
                "messages": {
                  "type": "array",
                  "description": "Anthropic messages: {role: user|assistant, content: string | [text|image|tool_use|tool_result blocks]}"
                },
                "thinking": {
                  "type": "object",
                  "description": "Optional {type:\"enabled\", budget_tokens} | {type:\"adaptive\"} | {type:\"disabled\"} - thinking tokens are output tokens. On Claude 4.7+ (Opus 5, Sonnet 5, Fable 5.1) thinking is adaptive and `effort` is the depth control; a budget_tokens value is advisory there"
                },
                "max_tokens": {
                  "type": "integer",
                  "description": "Required by the Messages API; clamped to the tier's output cap"
                }
              }
            },
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "POST"
              ],
              "type": "string"
            },
            "bodyType": {
              "enum": [
                "json",
                "form-data",
                "text"
              ],
              "type": "string"
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object",
              "required": [
                "id",
                "type",
                "role",
                "model",
                "content",
                "stop_reason",
                "usage"
              ],
              "properties": {
                "id": {
                  "type": "string"
                },
                "role": {
                  "type": "string"
                },
                "type": {
                  "type": "string"
                },
                "model": {
                  "type": "string"
                },
                "usage": {
                  "type": "object",
                  "properties": {
                    "input_tokens": {
                      "type": "integer"
                    },
                    "output_tokens": {
                      "type": "integer"
                    }
                  }
                },
                "content": {
                  "type": "array",
                  "items": {
                    "type": "object",
                    "properties": {
                      "text": {
                        "type": "string"
                      },
                      "type": {
                        "type": "string"
                      }
                    }
                  }
                },
                "stop_reason": {
                  "type": "string"
                }
              }
            }
          }
        }
      }
    }
  },
  "builder-code": {
    "info": {
      "a": "bc_b4aw4uzd"
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "a": {
          "type": "string",
          "pattern": "^[a-z0-9_]{1,32}$",
          "description": "App builder code"
        },
        "s": {
          "type": "array",
          "items": {
            "type": "string",
            "pattern": "^[a-z0-9_]{1,32}$"
          },
          "maxItems": 11,
          "description": "Service builder codes"
        },
        "w": {
          "type": "string",
          "pattern": "^[a-z0-9_]{1,32}$",
          "description": "Wallet builder code"
        }
      },
      "additionalProperties": false
    }
  },
  "payment-identifier": {
    "info": {
      "required": false
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "required"
      ],
      "properties": {
        "id": {
          "type": "string",
          "pattern": "^[a-zA-Z0-9_-]+$",
          "maxLength": 128,
          "minLength": 16
        },
        "required": {
          "type": "boolean"
        }
      }
    }
  }
}

Provenance

Seen in the source catalog: 2026-09-18 15:54Z
Last indexed by Roundhouse: 2026-09-24 08:50Z
Last enriched (probe, favicon, geo): 2026-09-11 12:45Z
x402 version: 2
Max timeout: 300s
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. 13 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 Messages premium 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=Messages%20premium'
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://agent402.tools/v1/premium/messages, 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.