pdf_a11y

Basic PDF accessibility remediation: title/language metadata, outline, and accessibility report. $1 per document.

MediaLiveeip155:8453Exactvia wellknown:gate402.app

https://gate402.app/v1/pdf-a11y

Human-utilityPdfAccessibilityAgents

Settlements · 30d

152↑ 1525%

No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days.

$1.30

Verified settled volume

232 settlements proven x402 by their on-chain EIP-3009 marker.

$1.00

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

0x8E57BFDE053dBb6862991759c19affC5F383d5D0

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.

{
  "tool": "pdf_a11y",
  "x402": {
    "error": "Payment Required",
    "accepts": [
      {
        "asset": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x8E57BFDE053dBb6862991759c19affC5F383d5D0",
        "amount": "1000000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://gate402.app/v1/pdf-a11y",
      "tags": [
        "x402",
        "compute",
        "inference",
        "agents",
        "market-data"
      ],
      "iconUrl": "https://gate402.app/icon.png",
      "mimeType": "application/json",
      "description": "Basic PDF accessibility remediation: document title/language metadata, outline from headings, and an accessibility report. $1 per document.",
      "serviceName": "gate402"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "title": "Annual Report",
              "filename": "doc.pdf",
              "language": "en-US",
              "fileBase64": "<base64 pdf>"
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "title": "Annual Report",
              "report": {
                "headings": 4,
                "warnings": []
              },
              "filename": "doc-a11y.pdf",
              "language": "en-US",
              "fileBase64": "…"
            }
          }
        },
        "schema": {
          "type": "object",
          "$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": [
                    "fileBase64"
                  ],
                  "properties": {
                    "title": {
                      "type": "string"
                    },
                    "filename": {
                      "type": "string"
                    },
                    "language": {
                      "type": "string"
                    },
                    "fileBase64": {
                      "type": "string"
                    }
                  }
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object"
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  },
  "error": "Payment Required",
  "accepts": [
    {
      "asset": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x8E57BFDE053dBb6862991759c19affC5F383d5D0",
      "scheme": "exact",
      "network": "base",
      "mimeType": "application/json",
      "resource": "https://gate402.app/v1/pdf-a11y",
      "description": "Basic PDF accessibility remediation: document title/language metadata, outline from headings, and an accessibility report. $1 per document.",
      "outputSchema": {},
      "maxAmountRequired": "1000000",
      "maxTimeoutSeconds": 300
    }
  ],
  "payment": {
    "asset": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
    "label": "Base",
    "network": "eip155:8453",
    "currency": "USDC",
    "selection": "default",
    "amountUsdc": 1,
    "alternatives": [
      "eip155:137",
      "eip155:42161",
      "eip155:1"
    ]
  },
  "priceUsdc": 1,
  "x402Version": 1,
  "alternatives": {
    "card": {
      "how": "Buy prepaid credit with a card and use it as X-API-Key.",
      "url": "https://gate402.app/ops/billing/checkout"
    },
    "freeKey": {
      "how": "POST for a free-credit key, then send it as the X-API-Key header. No wallet, no signup.",
      "url": "https://gate402.app/v1/free-key"
    }
  }
}

Accepts

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

1000000units

on Base · 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.

The catalog’s raw entry

[
  {
    "asset": null,
    "payTo": null,
    "amount": "1000000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxAmountRequired": "1000000"
  }
]

Provenance

Seen in the source catalog: —
Last indexed by Roundhouse: 2026-09-19 11:15Z
Last enriched (probe, favicon, geo): 2026-09-19 11:45Z
x402 version: —
Max timeout: —
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

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 pdf_a11y 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=pdf_a11y'
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://gate402.app/v1/pdf-a11y, 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.