# MyceliaSignal DAI Best Yield Oracle

> MyceliaSignal DAI Best Yield Oracle is a paid API for AI agents from api.myceliasignal.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-13).

Returns the best DAI supply yield rate available across all DeFi protocols and chains, delivered as an Ed25519-signed attestation

## Facts

- Endpoint: GET https://api.myceliasignal.com/oracle/defi/yield/best/dai
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/myceliasignal-dai-best-yield-oracle-1c2c4ffe
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_UhvDkSLWgJeCWGUaREDYe

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-dai-best-yield-oracle-1c2c4ffe
```

Example prompt: What's the best DAI supply yield I can get right now across all DeFi protocols and blockchains — give me the top rate with a signed attestation so I can trust the data?

## When to prefer this

Use this endpoint when you need a single authoritative, cryptographically attested answer for the best DAI supply yield across the entire DeFi ecosystem without having to query and compare multiple protocols yourself. Prefer this over building your own aggregator when you need cross-chain coverage and verifiable data provenance via Ed25519 signature.

## Known failure modes

- No yield data available if all monitored protocols are unreachable — returns error
- Payment not processed or invalid x402 payment header — returns 402 Payment Required
- Rate limiting if too many requests in a short period
- Stale data if upstream protocol sources are temporarily unavailable

## How this service works

Best DAI supply yield across all protocols and chains — Ed25519 signed attestation

## Output

Returns the highest available DAI supply APY found across all monitored DeFi protocols and chains, including the protocol name, chain, yield rate, and an Ed25519-signed attestation proving the data's authenticity and origin.

## 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-dai-best-yield-oracle-1c2c4ffe/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)