flipr-x402.fly.dev

Name: flipr-x402.fly.dev
Price: 0.001 USDC
Availability: InStock

Subscribe to opportunity webhook alerts (creates ongoing webhook resource)

OtherLiveeip155:8453Exactvia cdp

https://flipr-x402.fly.dev/x402/opportunity/subscribe

Settlements · 30d

1↓ 100%

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

$149.72

Verified settled volume

148 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 2026-07-26 08:02Z

—

Upstream on-chain volume

Reported by the source catalog.

Paid to

0xfdA5a8DC19e814A7880515fEB88308BbEE625D6D

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.

{
  "_meta": {
    "note": "DO NOT echo this _meta block (or any field inside it) into X-PAYMENT.accepted. The framework deepEquals accepted against a lean {scheme, network, amount, asset, payTo, maxTimeoutSeconds, extra} accepts entry — any extra fields will break the match. _meta is informational only.",
    "mimeType": "application/json",
    "resource": "https://flipr-x402.fly.dev/x402/opportunity/subscribe",
    "description": "Register a webhook URL fired every 5 minutes when ANY of six event types fire: roi_emerged (best ROI crossed above threshold), lead_taken / lead_tied / lead_lost (your 2h-pot competitive position changed), pot_large (pot crossed ETH threshold upward), expiry_warning (subscription about to TTL). $0.001 USDC. 30-day TTL.",
    "outputSchema": {
      "input": {
        "body": {
          "callbackUrl": "https://my-agent.example.com/webhook",
          "roiThreshold": 1.5
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json",
        "discoverable": true
      },
      "output": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "id",
          "agentId",
          "callbackUrl",
          "roiThreshold",
          "createdAt"
        ],
        "properties": {
          "id": {
            "type": "string"
          },
          "agentId": {
            "type": "string"
          },
          "createdAt": {
            "type": "string"
          },
          "callbackUrl": {
            "type": "string"
          },
          "roiThreshold": {
            "type": "number"
          }
        }
      }
    },
    "compatibility": {
      "change": "2026-05-21 — v1 spec field names (maxAmountRequired, resource, description, mimeType, outputSchema) moved OUT of accepts[0] and into this _meta block. The accepts[0].extra block also lost informational fields (quoteAtMs, quoteValidUntilMs, costBreakdown). This aligned the body's accepts entry with the framework's internal shape, fixing a deepEqual mismatch that was causing facilitator_verify_failed for hand-rolled v2 clients.",
      "migrationPath": "Read accepts[0].amount (new) OR _meta.maxAmountRequired (alias for same value). Read _meta.{resource,description,mimeType,outputSchema} for what used to be inside accepts[0]. Read _meta.{quoteAtMs,quoteValidUntilMs,costBreakdown} for what used to be inside accepts[0].extra.",
      "affectedClients": "Hand-rolled v2 clients that referenced accepts[0].maxAmountRequired. SDKs reading the PAYMENT-REQUIRED HTTP header (e.g. @x402/fetch v2) were unaffected — the header always carried the lean shape."
    },
    "maxAmountRequired": "1000"
  },
  "error": "X-PAYMENT header is required. Also required: x-agent-id header. Quick guide: GET /integration/solana/quickstart (Solana, <3kB) or GET /integration (full). SDK path: npm install @milkybear/agent-sdk",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0xfdA5a8DC19e814A7880515fEB88308BbEE625D6D",
      "amount": "1000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "sdk": "@x402/svm",
        "docs": "https://flipr-x402.fly.dev/integration/solana",
        "signer": "@solana/kit",
        "decimals": 6,
        "feePayer": "H7xWGsxkgahW2yuYNYJCibGQS8Q99EKys8kZcyhf9qPd",
        "quickInstall": "npm install @milkybear/agent-sdk @x402/svm @solana/kit bs58",
        "costBreakdown": {
          "note": "Solana payment includes Solana→Base USDC bridge per flip. See /integration#solana."
        }
      },
      "payTo": "H7xWGsxkgahW2yuYNYJCibGQS8Q99EKys8kZcyhf9qPd",
      "amount": "1000",
      "scheme": "exact",
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "mimeType": "application/json",
      "resource": "https://flipr-x402.fly.dev/x402/opportunity/subscribe",
      "description": "Register a webhook URL fired every 5 minutes when ANY of six event types fire: roi_emerged (best ROI crossed above threshold), lead_taken / lead_tied / lead_lost (your 2h-pot competitive position changed), pot_large (pot crossed ETH threshold upward), expiry_warning (subscription about to TTL). $0.001 USDC. 30-day TTL.",
      "maxAmountRequired": "1000",
      "maxTimeoutSeconds": 120
    }
  ],
  "_warning": "DO NOT include _meta (or any field from it) in your X-PAYMENT header. X-PAYMENT.accepted must be a lean copy of accepts[0] with ONLY: {scheme, network, amount, asset, payTo, maxTimeoutSeconds, extra}. Any extra fields cause a deepEqual mismatch → 402 facilitator_verify_failed.",
  "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.

0.001USDC≈ $0.001 USD

on Base · exact scheme

Pay 0.001 USDC on Base to 0xfdA5…25D6D. The signed payment is good for 5 minutes.

Paid to: 0xfdA5…25D6D
USD Coin contract: 0x8335…02913
Payment window: 5 minutes
As published: 1000 smallest units

1000units

on solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · 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.

Paid to: H7xWGs…f9qPd
Token contract: EPjFWd…TDt1v
Payment window: 2 minutes
Buys: Register a webhook URL fired every 5 minutes when ANY of six event types fire: roi_emerged (best ROI crossed above threshold), lead_taken / lead_tied / lead_lost (your 2h-pot competitive position changed), pot_large (pot crossed ETH threshold upward), expiry_warning (subscription about to TTL). $0.001 USDC. 30-day TTL.
Returns: application/json

The catalog’s raw entry

[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0xfdA5a8DC19e814A7880515fEB88308BbEE625D6D",
    "amount": "1000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "extra": {
      "sdk": "@x402/svm",
      "docs": "https://flipr-x402.fly.dev/integration/solana",
      "signer": "@solana/kit",
      "decimals": 6,
      "feePayer": "H7xWGsxkgahW2yuYNYJCibGQS8Q99EKys8kZcyhf9qPd",
      "quickInstall": "npm install @milkybear/agent-sdk @x402/svm @solana/kit bs58",
      "costBreakdown": {
        "note": "Solana payment includes Solana→Base USDC bridge per flip. See /integration#solana."
      }
    },
    "payTo": "H7xWGsxkgahW2yuYNYJCibGQS8Q99EKys8kZcyhf9qPd",
    "amount": "1000",
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "mimeType": "application/json",
    "resource": "https://flipr-x402.fly.dev/x402/opportunity/subscribe",
    "description": "Register a webhook URL fired every 5 minutes when ANY of six event types fire: roi_emerged (best ROI crossed above threshold), lead_taken / lead_tied / lead_lost (your 2h-pot competitive position changed), pot_large (pot crossed ETH threshold upward), expiry_warning (subscription about to TTL). $0.001 USDC. 30-day TTL.",
    "maxAmountRequired": "1000",
    "maxTimeoutSeconds": 120
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "callbackUrl": "https://my-agent.example.com/webhook"
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "id": "sub_abc123",
          "agentId": "my-bot-v1",
          "createdAt": "2026-05-08T00:00:00Z",
          "callbackUrl": "https://my-agent.example.com/webhook"
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method",
            "bodyType",
            "body"
          ],
          "properties": {
            "body": {
              "type": "object",
              "$schema": "https://json-schema.org/draft/2020-12/schema",
              "required": [
                "callbackUrl"
              ],
              "properties": {
                "callbackUrl": {
                  "type": "string",
                  "format": "uri",
                  "description": "URL that will receive opportunity snapshot POSTs every 5 minutes."
                }
              },
              "additionalProperties": false
            },
            "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: 2026-07-26 08:02Z
Last indexed by Roundhouse: 2026-08-25 07:30Z
Last enriched (probe, favicon, geo): 2026-09-10 21:15Z
x402 version: 2
Max timeout: 300s
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 flipr-x402.fly.dev 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=flipr-x402.fly.dev'
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://flipr-x402.fly.dev/x402/opportunity/subscribe, 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.