# MyceliaSignal LLM Chat Task Oracle — Cheapest Efficient/Fast Tier

> MyceliaSignal LLM Chat Task Oracle — Cheapest Efficient/Fast Tier is a paid API for AI agents from api.myceliasignal.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-14).

Returns a cryptographically signed (Ed25519) recommendation for the best cheap, fast LLM suited for chat tasks, allowing agents to compare models by cost-efficiency tier.

## Facts

- Endpoint: GET https://api.myceliasignal.com/oracle/inference/compare/task/chat
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/myceliasignal-llm-chat-task-oracle-cheapest-efficient-fast-tier-bd00d2ca
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_C5T_dG2uuXMhh4IiWW7S6

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 myceliasignal-llm-chat-task-oracle-cheapest-efficient-fast-tier-bd00d2ca
```

Example prompt: Which is the cheapest and fastest LLM I should use for a chat task right now — give me the oracle-attested recommendation with a cryptographic signature so I can trust the result?

## When to prefer this

Use this endpoint when an AI agent needs a cryptographically verifiable, oracle-backed recommendation for the cheapest fast LLM suitable for chat tasks — especially in automated or trust-sensitive pipelines (e.g. smart contracts, DeFi agents, or autonomous systems) where unsigned heuristics are insufficient. Prefer over manual comparison when cost-tier ranking and attestation matter more than customization.

## Known failure modes

- Payment not processed — 402 response if USDC payment not attached
- Invalid or missing query parameters — schema validation error
- Oracle signing service unavailable — 5xx server error
- Stale or cached data returned if upstream LLM pricing data is delayed
- Model list may be incomplete if upstream providers are unreachable

## How this service works

Best LLM for chat tasks — cheapest efficient/fast tier model — Ed25519 signed attestation

## Output

A signed oracle response (Ed25519 attestation) identifying the best-value (cheapest, efficient/fast tier) LLM for chat tasks, likely including model name, tier classification, and pricing signal — verifiable via the accompanying cryptographic signature.

## 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/myceliasignal-llm-chat-task-oracle-cheapest-efficient-fast-tier-bd00d2ca/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)