Roundhouse AI

api.proxyllm.ai

LLM cost scout: send your monthly OpenAI API spend in USD and get back the flat ChatGPT/Codex subscription tier that absorbs it through the ProxyLLM gateway, the exact new monthly total and savings, the live model catalog, and machine-readable signup steps an agent can complete autonomously (email OTP, no browser).

SearchLiveeip155:8453Exactvia cdp
https://api.proxyllm.ai/x402/llm-cost-scout
Calls · 30d
3↓ 20%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 30 snapshots so far.
$0.08
Verified settled volume
15 settlements proven x402 by their on-chain EIP-3009 marker.
$0.0050
Listed price
As published in the catalog. Always read the live 402 before paying.
3
Calls · 30d
Upstream's own call count for this endpoint, not ours.
3
Unique payers · 30d
Last called 2026-09-14 19:54Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0xF4D43bdAaE23a7d2012C49cb9f57eAaB89D4FfC2

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.

{
  "error": "X-PAYMENT header is required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0xF4D43bdAaE23a7d2012C49cb9f57eAaB89D4FfC2",
      "scheme": "exact",
      "network": "base",
      "mimeType": "application/json",
      "resource": "https://api.proxyllm.ai/x402/llm-cost-scout",
      "description": "LLM cost scout: send your monthly OpenAI API spend in USD and get back the flat ChatGPT/Codex subscription tier that absorbs it through the ProxyLLM gateway, the exact new monthly total and savings, the live model catalog, and machine-readable signup steps an agent can complete autonomously (email OTP, no browser).",
      "outputSchema": {
        "input": {
          "type": "http",
          "method": "POST",
          "bodyType": "json",
          "bodyFields": {
            "monthly_openai_bill_usd": {
              "type": "number",
              "required": true,
              "description": "Current monthly OpenAI API spend in USD"
            }
          }
        },
        "output": {
          "plan": "string - subscription tier that absorbs the workload",
          "models": "array - live model catalog at the gateway",
          "signup": "object - autonomous agent signup steps and URLs",
          "plan_cost_usd": "number",
          "proxyllm_fee_usd": "number - flat SaaS fee (129)",
          "plan_capacity_usd": "number - API-equivalent capacity per month",
          "monthly_savings_usd": "number",
          "new_monthly_total_usd": "number"
        }
      },
      "maxAmountRequired": "5000",
      "maxTimeoutSeconds": 60
    }
  ],
  "x402Version": 1
}

Accepts

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

0.005USDC≈ $0.005 USD
on Base · exact scheme

Pay 0.005 USDC on Base to 0xF4D4…4FfC2. The signed payment is good for 1 minute.

Paid to
0xF4D4…4FfC2
USD Coin contract
0x8335…02913
Payment window
1 minute
As published
5000 smallest units
Buys
LLM cost scout: send your monthly OpenAI API spend in USD and get back the flat ChatGPT/Codex subscription tier that absorbs it through the ProxyLLM gateway, the exact new monthly total and savings, the live model catalog, and machine-readable signup steps an agent can complete autonomously (email OTP, no browser).
Returns
application/json
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0xF4D43bdAaE23a7d2012C49cb9f57eAaB89D4FfC2",
    "scheme": "exact",
    "network": "base",
    "mimeType": "application/json",
    "resource": "https://api.proxyllm.ai/x402/llm-cost-scout",
    "description": "LLM cost scout: send your monthly OpenAI API spend in USD and get back the flat ChatGPT/Codex subscription tier that absorbs it through the ProxyLLM gateway, the exact new monthly total and savings, the live model catalog, and machine-readable signup steps an agent can complete autonomously (email OTP, no browser).",
    "outputSchema": {
      "input": {
        "type": "http",
        "method": "POST",
        "bodyType": "json",
        "bodyFields": {
          "monthly_openai_bill_usd": {
            "type": "number",
            "required": true,
            "description": "Current monthly OpenAI API spend in USD"
          }
        }
      },
      "output": {
        "plan": "string - subscription tier that absorbs the workload",
        "models": "array - live model catalog at the gateway",
        "signup": "object - autonomous agent signup steps and URLs",
        "plan_cost_usd": "number",
        "proxyllm_fee_usd": "number - flat SaaS fee (129)",
        "plan_capacity_usd": "number - API-equivalent capacity per month",
        "monthly_savings_usd": "number",
        "new_monthly_total_usd": "number"
      }
    },
    "maxAmountRequired": "5000",
    "maxTimeoutSeconds": 60
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "monthly_openai_bill_usd": {
            "type": "number",
            "required": true,
            "description": "Current monthly OpenAI API spend in USD"
          }
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {}
    },
    "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": {
              "type": "object"
            },
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "POST"
              ],
              "type": "string"
            },
            "bodyType": {
              "enum": [
                "json"
              ],
              "type": "string"
            }
          }
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-09-14 19:54Z
Last indexed by Roundhouse
2026-09-25 11:30Z
Last enriched (probe, favicon, geo)
2026-09-24 08:15Z
x402 version
1
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.proxyllm.ai 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.proxyllm.ai'
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.proxyllm.ai/x402/llm-cost-scout, 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.