MilliAPI
Tiny machine-readable APIs that AI agents can discover, pay for with x402 USDC on Base, and use instantly. Services start at $0.001 per call.
SearchLiveeip155:8453Exactvia cdp
Ai-agentsWeb-auditAi-searchRobotsLlms-txt
Calls · 30d
1→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 5 snapshots so far.
$0.36
Verified settled volume
72 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.
1
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-09-01 13:43Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x55E6024b4eB9b9325537c7453F53fDA5413B8417The 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.
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x55E6024b4eB9b9325537c7453F53fDA5413B8417",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://milliapi.com/api/agent-web-audit",
"tags": [
"ai-agents",
"web-audit",
"ai-search",
"robots",
"llms-txt"
],
"iconUrl": "https://milliapi.com/icon.svg",
"mimeType": "application/json",
"description": "Check whether a public HTTPS page is ready for AI agents and answer engines. Returns AI-crawler access, robots.txt and llms.txt status, canonical and meta tags, Open Graph, JSON-LD, H1 count, and a 0-100 readiness score. Useful before crawling, indexing, or AI-search optimization.",
"serviceName": "MilliAPI"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"queryParams": {
"url": "https://example.com"
}
},
"output": {
"type": "json",
"example": {
"page": {
"title": "Example Domain",
"h1Count": 1,
"noindex": false,
"canonical": null,
"openGraph": {
"type": null,
"image": null,
"title": null,
"description": null
},
"description": null,
"jsonLdBlocks": 0
},
"score": 45,
"target": "https://example.com/",
"product": "MilliAPI AI Web Readiness Audit",
"checkedAt": "2026-09-01T00:00:00.000Z",
"discovery": {
"llmsTxt": {
"status": 404,
"present": false
},
"robotsTxt": {
"status": 404,
"present": false
}
},
"aiCrawlerHomepageAccess": {
"GPTBot": {
"reason": "No matching robots.txt group",
"allowed": true
}
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [
"url"
],
"properties": {
"url": {
"type": "string",
"format": "uri",
"description": "Public HTTPS page to audit. Private IPs, localhost, credentials, and non-standard ports are rejected."
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"product",
"target",
"checkedAt",
"score",
"page",
"discovery",
"aiCrawlerHomepageAccess"
],
"properties": {
"page": {
"type": "object"
},
"score": {
"type": "number",
"maximum": 100,
"minimum": 0
},
"target": {
"type": "string"
},
"pricing": {
"type": "object"
},
"product": {
"type": "string"
},
"checkedAt": {
"type": "string"
},
"discovery": {
"type": "object"
},
"aiCrawlerHomepageAccess": {
"type": "object"
}
}
}
}
}
}
}
}
},
"x402Version": 2
}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≈ $0.005 USD
on Base · exact scheme
Pay 0.005 USDC on Base to 0x55E6…B8417. The signed payment is good for 5 minutes.
- Paid to
- 0x55E6…B8417
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 5000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x55E6024b4eB9b9325537c7453F53fDA5413B8417",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"url": "https://example.com"
}
},
"output": {
"type": "json",
"example": {
"page": {
"title": "Example Domain",
"h1Count": 1,
"noindex": false,
"canonical": null,
"openGraph": {
"type": null,
"image": null,
"title": null,
"description": null
},
"description": null,
"jsonLdBlocks": 0
},
"score": 45,
"target": "https://example.com/",
"product": "MilliAPI AI Web Readiness Audit",
"checkedAt": "2026-09-01T00:00:00.000Z",
"discovery": {
"llmsTxt": {
"status": 404,
"present": false
},
"robotsTxt": {
"status": 404,
"present": false
}
},
"aiCrawlerHomepageAccess": {
"GPTBot": {
"reason": "No matching robots.txt group",
"allowed": true
}
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [
"url"
],
"properties": {
"url": {
"type": "string",
"format": "uri",
"description": "Public HTTPS page to audit. Private IPs, localhost, credentials, and non-standard ports are rejected."
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"product",
"target",
"checkedAt",
"score",
"page",
"discovery",
"aiCrawlerHomepageAccess"
],
"properties": {
"page": {
"type": "object"
},
"score": {
"type": "number",
"maximum": 100,
"minimum": 0
},
"target": {
"type": "string"
},
"pricing": {
"type": "object"
},
"product": {
"type": "string"
},
"checkedAt": {
"type": "string"
},
"discovery": {
"type": "object"
},
"aiCrawlerHomepageAccess": {
"type": "object"
}
}
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-09-01 13:43Z
- Last indexed by Roundhouse
- 2026-09-04 06:20Z
- Last enriched (probe, favicon, geo)
- 2026-09-24 12:45Z
- x402 version
- 2
- Max timeout
- 300s
- Liveness probe
- HTTP 400
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
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 5 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service MilliAPI 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=MilliAPI' 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://milliapi.com/api/agent-web-audit, 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.