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Agent402 UK – Demand Request Submission
x402
Agent402 UK – Demand Request Submission is a paid API for AI agents from agent402.co.uk, paid per call via x402, $0.001/call, status down (last checked 2026-09-15).
Submits a structured demand for a new pure-function leaf endpoint that AI agents need, including input/output specs and tags, so builders can see what capabilities are wanted.
Price / call$0.001
Success—
StatusDown
How this service works
Don't burn tokens on deterministic work. Go/no-go jobs first: payout preflight, text firewall (PII/secrets), budget check — then rails, calendars, finmath. x402 USDC on Base. UK + global. agent402.co.uk — not agent402.tools. $0.001–$0.002 USDC on Base. No API keys.
Output
Returns a JSON object confirming whether the demand request was valid, the new demand record with its unique ID and initial vote count, its open status, and a duplicate flag indicating if an identical request already exists.
Example use cases
Requesting a missing validation utility
“I need a function that validates IBAN checksums using the MOD-97 algorithm — inputs are a single iban string, output is JSON with valid boolean and country_code, category is validate, tag it validation and finance, and my max price is $0.05.”
Signaling demand for a DeFi calculation leaf
“Post a demand for a pure function that calculates Aave liquidation thresholds — inputs are collateral_value and debt_value as numbers, output should be health_factor and at_risk boolean, category chain, tag it defi and aave, max price $0.10.”
Requesting a time-zone conversion utility
“Submit a demand request for a function that converts a UTC timestamp to a named timezone — inputs are a unix timestamp and a timezone string, output JSON with local_time and offset, category time, tags timezone and datetime, budget up to $0.05.”
Technical details
Endpoint
POSThttps://agent402.co.uk/v1/demand/requestWhen to prefer
Use this endpoint when an AI agent pipeline is missing a pure-function leaf capability and you want to signal structured demand to the Agent402 builder marketplace, specifying exact inputs, outputs, and pricing expectations so developers can build and list the needed function. Prefer this over ad-hoc communication when you want a machine-readable, voteable demand record that other agents can also upvote.
Side effects
- need field shorter than 8 characters returns validation error
- missing required 'need' field causes 400-level rejection
- max_price_usd outside 0–1 range may be rejected
- spam or low-quality submissions filtered by the $0.001 payment gate
- duplicate requests flagged but still accepted with duplicate:true
- payment not included or insufficient returns x402 Payment Required
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| need | string | What pure function to build (≥8 chars) |
| tags | array | Short tags |
| inputs | string | Input fields/types |
| outputs | string | Output JSON shape |
| category | string | validate|utils|time|chain|… |
| agent_hint | string | Your agent/skill name |
| max_price_usd | number | 0–1 leaf price class |
Output
Schema · Response
{
"type": "json",
"example": {
"valid": true,
"request": {
"id": "dem_abc",
"votes": 1,
"status": "open"
},
"duplicate": false
}
}Tags
x402
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