text-integrity sanitize

An agent-native instrument that breaks the loop. Call it when you

InferenceLiveeip155:8453Exactvia cdp
IntegritySanitizePre-flightPrompt-injectionUnicode
Activity
—
Nothing indexed for this service or its provider yet. Not a claim that it is unused — only that we hold no record.
$2.01
Verified settled volume
3 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.
7
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-07-01 17:14Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x99fCE493DED78e271243F17C385800D6686D238D

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.

{
  "input": "POST { text: string, max 50000 chars }",
  "price": "$0.005 USDC on Base (eip155:8453)",
  "output": "{ clean: string, flags: string[], risk: low|medium|high, stats: { input_length, output_length, removed } }",
  "detects": [
    "invisible_unicode (zero-width chars, BOM, soft hyphens, tag chars, variation selectors)",
    "bidi_overrides",
    "homoglyphs (Cyrillic, Greek)",
    "prompt_injection_signatures",
    "llm_watermarks"
  ],
  "function": "Pre-flight text integrity check.",
  "cacheable": true,
  "latency_ms": "<50",
  "deterministic": true
}

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 0x99fC…D238D. The signed payment is good for 5 minutes.

USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
5000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x99fCE493DED78e271243F17C385800D6686D238D",
    "amount": "5000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "text": "Text to check for hidden Unicode, homoglyphs, bidi overrides, prompt-injection signatures, and LLM watermarks."
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "risk": "low",
          "clean": "cleaned text with hidden chars stripped",
          "flags": [
            "zero_width_chars_detected"
          ],
          "stats": {
            "removed": 4,
            "input_length": 1234,
            "output_length": 1230
          }
        }
      }
    },
    "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": [
                "text"
              ],
              "properties": {
                "text": {
                  "type": "string",
                  "maxLength": 50000,
                  "description": "Text to check. Up to 50,000 characters. Pre-flight integrity scan: strips invisible Unicode (zero-width chars, BOM, soft hyphens, tag chars, variation selectors), detects bidirectional override controls, flags Cyrillic/Greek homoglyph substitutions, matches known prompt-injection signatures, detects LLM watermark patterns. Returns cleaned text + flags + risk score synchronously."
                }
              }
            },
            "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": [
                "clean",
                "flags",
                "risk",
                "stats"
              ],
              "properties": {
                "risk": {
                  "enum": [
                    "low",
                    "medium",
                    "high"
                  ],
                  "type": "string"
                },
                "clean": {
                  "type": "string"
                },
                "flags": {
                  "type": "array",
                  "items": {
                    "type": "string"
                  }
                },
                "stats": {
                  "type": "object",
                  "properties": {
                    "removed": {
                      "type": "number"
                    },
                    "input_length": {
                      "type": "number"
                    },
                    "output_length": {
                      "type": "number"
                    }
                  }
                }
              }
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-07-01 17:14Z
Last indexed by Roundhouse
2026-07-09 13:30Z
Last enriched (probe, favicon, geo)
2026-09-13 09:46Z
x402 version
2
Max timeout
300s
Liveness probe
HTTP 410
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

Nothing indexed for this service or its provider yet. Not a claim that it is unused — only that we hold no record. 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 text-integrity sanitize 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=text-integrity%20sanitize'
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://kenoodl.com/sanitize, 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.