API Acre
74 pay-per-call APIs for agents, settled in USDC on Base and Solana through x402.
SearchLiveeip155:8453Exactvia cdp
Base-blockBlock-by-numberHistorical-blockBlock-confirmationsBlock-header
Calls · 30d
1↓ 53%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 30 snapshots so far.
$37.15
Verified settled volume
300 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.
1
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-09-01 12:52Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0xa0BFa4f07281c9b248DC3AED2217836BcA24869BThe 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 · exact scheme
Pay 0.001 USDC on Base to 0xa0BF…4869B. The signed payment is good for 5 minutes.
- Paid to
- 0xa0BF…4869B
- 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
- B4CHWQ…HDLan
- Token contract
- EPjFWd…TDt1v
- Payment window
- 5 minutes
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xa0BFa4f07281c9b248DC3AED2217836BcA24869B",
"amount": "1000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"
},
"payTo": "B4CHWQeQn7GDLZD2aW6hpGG2bEseisBFLZYECA3HDLan",
"amount": "1000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"block_tag": "safe",
"block_number": 34600000
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"data": {
"head": {
"latestNumber": 34600002,
"confirmations": 3,
"blockAtOrBeforeHead": true
},
"block": {
"hash": "0x4444444444444444444444444444444444444444444444444444444444444444",
"number": 34600000,
"timestamp": "2026-08-11T13:00:00+00:00",
"ageSeconds": 4,
"parentHash": "0x3333333333333333333333333333333333333333333333333333333333333333"
},
"found": true,
"source": "https://docs.base.org/base-chain/api-reference/ethereum-json-rpc-api/eth_getB...",
"network": {
"name": "Base Mainnet",
"caip2": "eip155:8453",
"chainId": 8453
},
"request": {
"mode": "number",
"blockTag": null,
"blockNumber": 34600000,
"rpcSelector": "0x20ff440",
"fullTransactions": false
},
"readOnly": true,
"warnings": [],
"disclaimer": "A point-in-time RPC observation, not proof of finality beyond the requested p...",
"observedAt": "2026-08-11T13:00:04+00:00",
"rpcCallsMade": 3,
"networkRequestsMade": 1,
"transactionBroadcast": false
},
"meta": {
"cached": false,
"sources": [],
"warnings": [],
"duration_ms": 42,
"next_actions": [
{
"path": "/v1/crypto/base-network-status",
"title": "Base network and fee status",
"method": "POST",
"reason": "Compare the inspected historical or tagged block with the current Base head a...",
"service": "crypto.base-network-status"
}
]
},
"service": "crypto.base-block-inspect",
"version": "1",
"request_id": "018f1f54-7f38-7ba2-8dc3-5f90272d9f1a"
}
}
},
"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",
"properties": {
"block_tag": {
"enum": [
"latest",
"safe",
"finalized"
],
"type": "string"
},
"block_number": {
"anyOf": [
{
"type": "integer"
},
{
"type": "null"
}
]
}
}
},
"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",
"required": [
"request_id",
"service",
"version",
"data",
"meta"
],
"properties": {
"data": {
"type": "object",
"required": [
"request",
"network",
"observedAt",
"head",
"found",
"block",
"networkRequestsMade",
"rpcCallsMade",
"readOnly",
"transactionBroadcast",
"warnings",
"source",
"disclaimer"
],
"properties": {
"head": {
"type": "object"
},
"block": {
"anyOf": [
{
"type": "object"
},
{
"type": "null"
}
]
},
"found": {
"type": "boolean"
},
"source": {
"type": "string"
},
"network": {
"type": "object"
},
"request": {
"type": "object"
},
"readOnly": {
"type": "boolean"
},
"warnings": {
"type": "array",
"items": {
"type": "string"
}
},
"disclaimer": {
"type": "string"
},
"observedAt": {
"type": "string"
},
"rpcCallsMade": {
"type": "integer"
},
"networkRequestsMade": {
"type": "integer"
},
"transactionBroadcast": {
"type": "boolean"
}
},
"additionalProperties": false
},
"meta": {
"type": "object",
"required": [
"duration_ms",
"cached",
"sources",
"warnings",
"next_actions"
],
"properties": {
"cached": {
"type": "boolean"
},
"sources": {
"type": "array",
"items": {
"type": "string"
}
},
"warnings": {
"type": "array",
"items": {
"type": "string"
}
},
"duration_ms": {
"type": "integer"
},
"next_actions": {
"type": "array",
"items": {
"type": "object"
}
}
}
},
"service": {
"type": "string"
},
"version": {
"type": "string"
},
"request_id": {
"type": "string"
}
}
}
}
}
}
}
},
"payment-identifier": {
"info": {
"required": false
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"required"
],
"properties": {
"id": {
"type": "string",
"pattern": "^[a-zA-Z0-9_-]+$",
"maxLength": 128,
"minLength": 16
},
"required": {
"type": "boolean"
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-09-24 07:36Z
- Last indexed by Roundhouse
- 2026-09-24 11:40Z
- Last enriched (probe, favicon, geo)
- 2026-09-23 22:15Z
- x402 version
- 2
- Max timeout
- 300s
- Liveness probe
- HTTP 405
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. 30 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 API Acre 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%20Acre' 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://apiacre.com/v1/crypto/base-block-inspect, 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.