# Synthex Forge x402 Memory Get

> Synthex Forge x402 Memory Get is a paid API for AI agents from x402.synthexforge.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-23).

Retrieves a stored memory value by key and owner from the Synthex Forge paid memory store, returning a signed artifact via x402 micropayment.

## Facts

- Endpoint: POST https://x402.synthexforge.com/v1/memory/get?utm_source=zero.xyz
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-23
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/synthex-forge-x402-memory-get-0604540d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_GX7df8PpTjom6kdcgEuPq

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-x402-memory-get-0604540d -d '<json body>'
```

Example prompt: Retrieve the memory entry stored under the key 'session-context-42' for owner '0xABCDEF1234567890' from the Synthex Forge memory store.

## When to prefer this

Use this endpoint when you need to retrieve a previously stored, cryptographically attested memory artifact keyed by an owner identifier, especially in agentic workflows requiring persistent state, cross-agent data sharing, or verifiable record retrieval with Ed25519-signed responses on a micropayment-gated (x402/USDC) infrastructure.

## Known failure modes

- Key not found — returns ok: false or 404 if the specified key does not exist for the given owner
- Missing required fields — 400 error if key or owner is absent from the request body
- Payment not provided — HTTP 402 with x402 v2 payment-required envelope if USDC payment on Base mainnet (chain ID 8453) is not attached
- Unauthorized owner — may return error if the requesting agent does not match the stored owner
- Service unavailability — 5xx errors if the Synthex Forge backend is unreachable

## 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 the retrieved memory value associated with the given key and owner. The response is signed with Ed25519 and SHA-256 for integrity verification.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "key": {
   "type": "string"
  },
  "owner": {
   "type": "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-x402-memory-get-0604540d/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)