api-production-853c.up.railway.app
Railway is a full-stack cloud for deploying web apps, servers, databases, and more with automatic scaling, monitoring, and security.
MediaLiveeip155:8453Exactvia cdp
Activity
—
Nothing indexed for this service or its provider yet. Not a claim that it is unused — only that we hold no record.
$0.12
Verified settled volume
17 settlements proven x402 by their on-chain EIP-3009 marker.
$0.0040
Listed price
As published in the catalog. Always read the live 402 before paying.
2
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-06-19 04:44Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x118FaE85e5E44a92a1A2b3ED1F16DF3ecAB4Ce58The 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.
0.004USDC≈ $0.004 USD
on Base · exact scheme
Pay 0.004 USDC on Base to 0x118F…4Ce58. The signed payment is good for 5 minutes.
- Paid to
- 0x118F…4Ce58
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 4000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x118FaE85e5E44a92a1A2b3ED1F16DF3ecAB4Ce58",
"amount": "4000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"text": "MatrixFold checks X post payloads before an agent calls POST /2/tweets.",
"hashtags": [
"#AI",
"#Agent"
],
"mediaIds": [],
"platform": "x",
"imageUrls": [],
"apiProfile": "x_api_v2_create_tweet"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"ready": true,
"caveats": [
"ready=true means MatrixFold validated the request body shape and deterministic content limits only.",
"MatrixFold cannot verify the buyer's X API plan, OAuth token, account status, rate limit, or platform moderation outcome."
],
"platform": "x",
"warnings": [],
"apiLimits": {
"maxHashtags": 3,
"maxTextChars": 280,
"textEndpoint": "https://api.x.com/2/tweets"
},
"apiProfile": "x_api_v2_create_tweet",
"publishText": "MatrixFold checks X post payloads before an agent calls POST /2/tweets. #AI #Agent",
"prerequisites": [],
"blockingReasons": [],
"retryableRequest": {
"url": "https://api.x.com/2/tweets",
"body": {
"text": "MatrixFold checks X post payloads before an agent calls POST /2/tweets. #AI #Agent"
},
"method": "POST",
"headers": {
"Content-Type": "application/json",
"Authorization": "Bearer {X_USER_ACCESS_TOKEN}"
},
"retryPolicy": {
"retryOnStatus": [
429,
500,
502,
503,
504
],
"idempotencyNote": "X create-post requests can create duplicates after ambiguous network failures. Reuse this request body only after checking whether the post was already created.",
"doNotRetryOnStatus": [
400,
401,
403,
409,
422
],
"safeToRetryTransportFailures": false
},
"requiredAuth": {
"type": "OAuth2UserToken",
"header": "Authorization",
"tokenPlaceholder": "{X_USER_ACCESS_TOKEN}"
}
},
"validationReport": {
"score": 100,
"valid": true,
"errors": [],
"metrics": {
"chars": 82,
"links": 0,
"emojis": 0,
"images": 0,
"hashtags": 2,
"lineBreaks": 0
},
"platform": "x",
"warnings": [],
"riskLevel": "low",
"suggestedFixes": []
}
}
}
},
"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": [
"platform",
"text"
],
"properties": {
"text": {
"type": "string",
"maxLength": 6000,
"minLength": 1,
"description": "Post text before MatrixFold merges structured hashtags into the final X text field."
},
"hashtags": {
"type": "array",
"items": {
"type": "string"
},
"maxItems": 30,
"description": "Structured hashtags to append to the final X text field if missing."
},
"mediaIds": {
"type": "array",
"items": {
"type": "string"
},
"maxItems": 4,
"description": "Already-uploaded X media IDs to attach to POST /2/tweets."
},
"platform": {
"enum": [
"x"
],
"type": "string",
"description": "Only X is supported in the preflight adapter."
},
"imageUrls": {
"type": "array",
"items": {
"type": "string",
"format": "uri"
},
"maxItems": 20,
"description": "Raw image URLs. Any non-empty value blocks ready=true; upload them first and pass mediaIds instead."
},
"apiProfile": {
"enum": [
"x_api_v2_create_tweet"
],
"type": "string",
"description": "Strict downstream API profile for X POST /2/tweets."
}
}
},
"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": [
"platform",
"apiProfile",
"ready",
"publishText",
"validationReport",
"blockingReasons",
"warnings",
"prerequisites",
"apiLimits",
"caveats"
],
"properties": {
"ready": {
"type": "boolean"
},
"caveats": {
"type": "array",
"items": {
"type": "string"
}
},
"platform": {
"enum": [
"x"
],
"type": "string"
},
"warnings": {
"type": "array"
},
"apiLimits": {
"type": "object"
},
"apiProfile": {
"enum": [
"x_api_v2_create_tweet"
],
"type": "string"
},
"publishText": {
"type": "string"
},
"prerequisites": {
"type": "array"
},
"blockingReasons": {
"type": "array"
},
"retryableRequest": {
"type": "object"
},
"validationReport": {
"type": "object",
"required": [
"platform",
"valid",
"score",
"riskLevel",
"errors",
"warnings",
"suggestedFixes",
"metrics"
],
"properties": {
"score": {
"type": "integer",
"maximum": 100,
"minimum": 0
},
"valid": {
"type": "boolean"
},
"errors": {
"type": "array"
},
"metrics": {
"type": "object"
},
"platform": {
"type": "string"
},
"warnings": {
"type": "array"
},
"riskLevel": {
"enum": [
"low",
"medium",
"high"
],
"type": "string"
},
"suggestedFixes": {
"type": "array",
"items": {
"type": "string"
}
}
}
}
}
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-06-19 04:44Z
- Last indexed by Roundhouse
- 2026-07-11 00:10Z
- Last enriched (probe, favicon, geo)
- 2026-09-10 11:15Z
- x402 version
- 2
- Max timeout
- 300s
- Liveness probe
- HTTP 404
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.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service api-production-853c.up.railway.app 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=api-production-853c.up.railway.app' 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://api-production-853c.up.railway.app/v1/preflight, 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.