Roundhouse AI

402utils.com

Micro API utilities for AI agents, priced per call and paid in USDC over the x402 protocol. PDF, screenshot, OG-image and more — no signup, no keys.

SearchLiveeip155:8453Exactvia cdp
https://402utils.com/v1/token-count
Settlements · 30d
160↓ 25%
No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days.
$1.69
Verified settled volume
705 settlements proven x402 by their on-chain EIP-3009 marker.
$0.0010
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
Never called
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0xc55A2D530b53CBaD1001e4AfD4720B7E71f9C291

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.

0.001USDC≈ $0.001 USD
on Base · exact scheme

Pay 0.001 USDC on Base to 0xc55A…9C291. The signed payment is good for 1 minute.

Paid to
0xc55A…9C291
USD Coin contract
0x8335…02913
Payment window
1 minute
As published
1000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0xc55A2D530b53CBaD1001e4AfD4720B7E71f9C291",
    "amount": "1000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 60
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "text": "hello world",
          "encoding": "cl100k_base"
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "note": "OpenAI-style (tiktoken) estimate; not exact for Claude or Gemini, which use different tokenizers. Exact Claude counts require the Anthropic API.",
          "tokens": 2,
          "encoding": "cl100k_base",
          "charCount": 11,
          "estimatedFor": "openai-gpt4o-style"
        }
      }
    },
    "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",
              "required": [
                "text"
              ],
              "properties": {
                "text": {
                  "type": "string",
                  "description": "The text to tokenize (may be empty → 0 tokens; max 1 MB UTF-8)."
                },
                "encoding": {
                  "enum": [
                    "o200k_base",
                    "cl100k_base"
                  ],
                  "type": "string",
                  "default": "o200k_base",
                  "description": "tiktoken encoding. o200k_base = GPT-4o / GPT-4.1 / o-series (current standard); cl100k_base = GPT-3.5/4, text-embedding-3."
                }
              },
              "description": "Provided text in, token count out. Nothing is fetched."
            },
            "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": [
                "tokens",
                "encoding",
                "charCount",
                "estimatedFor",
                "note"
              ],
              "properties": {
                "note": {
                  "type": "string",
                  "description": "Honest-scope disclaimer (OpenAI-style, not exact for Claude/Gemini)."
                },
                "tokens": {
                  "type": "integer",
                  "description": "Number of BPE tokens."
                },
                "encoding": {
                  "enum": [
                    "o200k_base",
                    "cl100k_base"
                  ],
                  "type": "string",
                  "description": "The encoding used."
                },
                "charCount": {
                  "type": "integer",
                  "description": "Number of Unicode code points in the text."
                },
                "estimatedFor": {
                  "type": "string",
                  "description": "The tokenizer family this estimates ('openai-gpt4o-style')."
                }
              }
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-07-06 08:17Z
Last indexed by Roundhouse
2026-07-06 12:20Z
Last enriched (probe, favicon, geo)
2026-09-13 22:45Z
x402 version
2
Max timeout
60s
Liveness probe
HTTP 404
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

No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days. 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 402utils.com 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=402utils.com'
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://402utils.com/v1/token-count, 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.