# MyeliaSignal L40S Best Price Oracle

> MyeliaSignal L40S Best Price Oracle is a paid API for AI agents from api.myceliasignal.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-14).

Returns the best current rental price for NVIDIA L40S GPUs across all cloud/compute providers, delivered as an Ed25519-signed attestation

## Facts

- Endpoint: GET https://api.myceliasignal.com/oracle/compute/best/l40s
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/myeliasignal-l40s-best-price-oracle-bbe602e5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_0CShCj_4lmewv21rSGSxD

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 myeliasignal-l40s-best-price-oracle-bbe602e5
```

Example prompt: What's the best price I can get for an L40S GPU right now, and which provider is offering it — with a signed attestation I can verify?

## When to prefer this

Use this endpoint when an agent needs a real-time, verifiable best price for L40S GPU compute and requires cryptographic proof of the data's integrity via Ed25519 attestation. Prefer this over manual provider comparison when you need a single trusted source that aggregates across multiple cloud providers and need auditability of the price quote. Choose this over sibling endpoints for H200 or RTX 4090 when the workload is specifically suited to the L40S.

## Known failure modes

- No pricing data available from upstream sources — may return 503 or empty result
- Payment not processed correctly — 402 payment required error before data is returned
- Signature verification failure on client side if public key is not known
- Stale or temporarily unavailable market data if providers are unreachable
- Rate limiting or quota exhaustion returning 429

## How this service works

Cheapest L40S GPU rental — best hourly rate for inference-optimized NVIDIA GPU across providers — Ed25519 signed attestation

## Output

A cryptographically signed (Ed25519) attestation containing the best current L40S GPU rental price found across all tracked compute providers, including the winning provider and the price figure, along with a signature and timestamp enabling independent verification of the data's authenticity.

## Request schema (JSON Schema)

```json
{
 "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": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/myeliasignal-l40s-best-price-oracle-bbe602e5/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.myceliasignal.com](https://www.zero.xyz/host/api.myceliasignal.com/llms.txt)