api.alexstokes.com
Practical data APIs for apps, automations and AI agents. Explore the Tender Data API for UK public procurement notices, free checks and integration guides.
OtherLiveeip155:8453Exactvia facilitator:thirdweb
Calls · 30d
8
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 15 snapshots so far.
$0.09
Verified settled volume
9 settlements proven x402 by their on-chain EIP-3009 marker.
$0.010
Listed price
As published in the catalog. Always read the live 402 before paying.
—
Calls · 30d
Upstream's own call count for this endpoint, not ours.
—
Unique payers · 30d
Never called
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x6180a2F87C9Ac53A3CA527c15c1A81A951B95073The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Provider
The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.
Live 402 challenge
Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x6180a2F87C9Ac53A3CA527c15c1A81A951B95073",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://api.alexstokes.com/v1/tenders",
"mimeType": "application/json",
"description": "UK tenders and public procurement search for apps, automations and AI agents. Search UK government contract notices from Find a Tender by keyword, CPV, delivery region, deadline and value. Returns up to 25 structured notices with buyers, deadlines, values and official source links where available. Bounded ingestion window, not all UK contracts; check free /status. Successful empty searches are chargeable."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"q": "cleaning",
"limit": 10,
"status": "open"
}
},
"output": {
"type": "json",
"example": {
"data": [],
"meta": {
"fresh": true,
"limit": 10,
"total": 0,
"offset": 0,
"source": "Find a Tender",
"coverage": "Notices in the ingested update window only.",
"next_offset": null
}
}
}
},
"schema": {
"type": "object",
"$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",
"properties": {
"q": {
"type": "string",
"maxLength": 200,
"description": "Literal case-insensitive AND keyword terms across title, description, buyer and CPV descriptions."
},
"cpv": {
"type": "string",
"pattern": "^\\d{2,8}$",
"description": "CPV code prefix."
},
"limit": {
"type": "integer",
"default": 10,
"maximum": 25,
"minimum": 1
},
"offset": {
"type": "integer",
"default": 0,
"maximum": 1000,
"minimum": 0
},
"region": {
"type": "string",
"maxLength": 12,
"description": "Published delivery region code prefix, e.g. UKG for West Midlands. Not buyer office location; national-only and missing locations may be omitted."
},
"status": {
"enum": [
"open",
"closed",
"cancelled",
"planned",
"unknown",
"all"
],
"type": "string",
"default": "open",
"description": "Derived from the latest ingested notice. Open does not establish supplier eligibility."
},
"currency": {
"type": "string",
"pattern": "^[A-Z]{3}$",
"description": "Required with value filters; no currency conversion."
},
"snapshot": {
"type": "string",
"maxLength": 80,
"description": "Copy meta.snapshot from page one when offset > 0; changed dataset returns 409."
},
"max_value": {
"type": "number",
"minimum": 0
},
"min_value": {
"type": "number",
"minimum": 0
},
"deadline_to": {
"type": "string"
},
"deadline_from": {
"type": "string"
}
},
"additionalProperties": false
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"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.
0.01USDC≈ $0.01 USD
on Base · exact scheme
Pay 0.01 USDC on Base to 0x6180…95073. The signed payment is good for 5 minutes.
- Paid to
- 0x6180…95073
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 10000 smallest units
- Returns
- application/json
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x6180a2F87C9Ac53A3CA527c15c1A81A951B95073",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://api.alexstokes.com/v1/tenders",
"description": "",
"maxAmountRequired": "10000",
"maxTimeoutSeconds": 300
}
]Provenance
- Seen in the source catalog
- 2026-10-15 17:49Z
- Last indexed by Roundhouse
- 2026-10-19 07:15Z
- Last enriched (probe, favicon, geo)
- 2026-10-19 08:15Z
- x402 version
- 1
- Max timeout
- 300s
- Liveness probe
- HTTP 402
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. 15 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.alexstokes.com 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.alexstokes.com' 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.alexstokes.com/v1/tenders, 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. Either pay over x402 (mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at https://roundhouseai.io/dashboard/connections. If you have neither, ask before going further. If you do not have Roundhouse tools or skills installed, read https://roundhouseai.io/skill.md first — it is the whole procedure.