# Synthex Forge Agent Run (x402)

> Synthex Forge Agent Run (x402) is a paid API for AI agents from x402.synthexforge.com, paid per call via x402, $1/call, status unknown (last checked 2026-10-21).

Executes a bounded AI agent run against a natural-language task, returning a signed result artifact, for $1 USDC via x402 micropayment on Base mainnet.

## Facts

- Endpoint: POST https://x402.synthexforge.com/v1/agent/run?utm_source=zero.xyz
- Price: $1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/synthex-forge-agent-run-x402-5cdc6015
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_yegti85CFGutfrOcg6fAn

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability synthex-forge-agent-run-x402-5cdc6015 -d '<json body>'
```

Example prompt: Run a Synthex Forge bounded agent task to verify and attest the following: 'Check that this governance proposal meets all required criteria' — use the context 'Proposal #42 submitted by Alice on 2024-05-01'.

## When to prefer this

Choose this endpoint when you need a cryptographically attested, Ed25519-signed result from a bounded AI agent run and are willing to pay $1 USDC per call via x402 micropayment on Base mainnet. It is particularly suited for governance, verification, and attestation workflows where a tamper-evident signed artifact is required. Prefer this over unsigned or unattested agent APIs when auditability and non-repudiation matter.

## Known failure modes

- HTTP 402 returned if payment has not been settled or x402 envelope is malformed
- Invalid or missing 'task' field returns a validation error
- Payment rejected if USDC balance is insufficient on Base mainnet
- Ed25519 signature verification failure if artifact is tampered
- Timeout if the bounded agent run exceeds execution limits
- Network errors on Base chain ID 8453 causing payment failure

## How this service works

Synthex Forge x402 Receive: 41 paid verification, attestation and governance endpoints (Ed25519 + SHA-256 signed artifacts) plus free verify/public-key/standard sibling routes. Paid routes answer HTTP 402 with an x402 v2 `payment-required` envelope (atomic USDC on Base mainnet, chain ID 8453). Free routes are declared with `security: []` per the x402scan discovery spec.

## Output

Returns a JSON object with an 'ok' boolean indicating success, and implicitly a signed artifact (Ed25519 + SHA-256) confirming the agent run result. The response reflects whether the bounded agent task completed successfully after the $1 USDC x402 payment is processed on Base mainnet (chain ID 8453).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "task": {
   "type": "string",
   "description": "natural-language task for the bounded agent run"
  },
  "context": {
   "type": "string",
   "description": "optional caller-supplied context string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/synthex-forge-agent-run-x402-5cdc6015/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.synthexforge.com](https://www.zero.xyz/host/x402.synthexforge.com/llms.txt)