x402 inference gateway

Name: x402 inference gateway
Price: 0.001 USDC
Availability: InStock

LLM inference API for AI agents: OpenAI-compatible chat completions paid per request in USDC on Base. No account or API key. Summarize, classify, extract, translate, generate and chat with gpt-5.4-nano, gpt-5.4-mini, gpt-5.4, gpt-5.5, gpt-4o-mini and more. Misses billed at cost + 4% on actual token usage (upto scheme); deterministic repeats (temperature 0) are cache hits billed at 55% of provider price — loops get cheaper automatically. From $0.001/call, standard OpenAI POST format.

InferenceLiveeip155:8453Uptovia cdp

https://agent-production-1daa.up.railway.app/v1/chat/completions

InferenceLlmOpenaiChat-completionsGpt-5.4

Activity

—

Nothing indexed for this service or its provider yet. Not a claim that it is unused — only that we hold no record.

$0.25

Verified settled volume

1 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

Last called 2026-07-22 03:12Z

—

Upstream on-chain volume

Reported by the source catalog.

Paid to

0x77c947f8534E5dC79B4a41280D597eC210BCD93c

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 · upto scheme

Pay 0.001 USDC on Base to 0x77c9…CD93c. The signed payment is good for 5 minutes.

Paid to: 0x77c9…CD93c
USD Coin contract: 0x8335…02913
Payment window: 5 minutes
As published: 1000 smallest units

The catalog’s raw entry

[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2",
      "facilitatorAddress": "0x68A96F41ff1e9F2E7b591A931A4AD224e7C07863",
      "assetTransferMethod": "permit2"
    },
    "payTo": "0x77c947f8534E5dC79B4a41280D597eC210BCD93c",
    "amount": "1000",
    "scheme": "upto",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "model": "gpt-5.4-nano",
          "messages": [
            {
              "role": "user",
              "content": "Summarize this in one sentence: ..."
            }
          ],
          "max_tokens": 256,
          "temperature": 0
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "id": "chatcmpl-abc123",
          "usage": {
            "total_tokens": 54,
            "prompt_tokens": 42,
            "completion_tokens": 12
          },
          "object": "chat.completion",
          "choices": [
            {
              "index": 0,
              "message": {
                "role": "assistant",
                "content": "One-sentence summary."
              },
              "finish_reason": "stop"
            }
          ]
        }
      }
    },
    "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": [
                "model",
                "messages"
              ],
              "properties": {
                "model": {
                  "enum": [
                    "gpt-5.4-nano",
                    "gpt-5.4-mini",
                    "gpt-5.4",
                    "gpt-5.5",
                    "gpt-4o-mini",
                    "gpt-4o",
                    "gpt-4.1-mini",
                    "gpt-4.1"
                  ],
                  "type": "string",
                  "description": "Upstream model to run"
                },
                "messages": {
                  "type": "array",
                  "description": "OpenAI chat messages array"
                },
                "max_tokens": {
                  "type": "number",
                  "description": "Output cap; the authorized payment ceiling scales with it"
                }
              }
            },
            "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"
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog: 2026-07-22 03:12Z
Last indexed by Roundhouse: 2026-07-22 10:10Z
Last enriched (probe, favicon, geo): 2026-09-20 10:15Z
x402 version: 2
Max timeout: 300s
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

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 x402 inference gateway 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=x402%20inference%20gateway'
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://agent-production-1daa.up.railway.app/v1/chat/completions, 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.