# Mycelia Signal SOL/USD Support & Resistance Density Oracle

> Mycelia Signal SOL/USD Support & Resistance Density Oracle is a paid API for AI agents from api.myceliasignal.com, paid per call via x402, $0.15/call, status unknown (last checked 2026-09-13).

Returns Ed25519-signed support, resistance, and at-level density attestations for SOL/USD based on 69-day spot price history, including strength and proximity metrics.

## Facts

- Endpoint: GET https://api.myceliasignal.com/oracle/market/support/density/sol
- Price: $0.15/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/mycelia-signal-sol-usd-support-resistance-density-oracle-90c65956
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_VYbLH4vEJHW823l1ZDpMn

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 mycelia-signal-sol-usd-support-resistance-density-oracle-90c65956
```

Example prompt: What are the current SOL/USD support and resistance dwell levels from the last 69 days — I want the strength and proximity data with a signed attestation I can verify?

## When to prefer this

Choose this endpoint when you need a deterministic, cryptographically attested price structure summary for SOL/USD — particularly when your workflow requires verifiable, tamper-evident market data (e.g., on-chain settlement, audit trails, or agent-to-agent trust). Prefer this over raw price feeds when what you need is not the current price but where price has been accepted, i.e., support/resistance density from historical dwell time.

## Known failure modes

- Payment not received or x402 payment header missing — returns 402 Payment Required
- Upstream price data temporarily unavailable — may return 503 or stale response
- Invalid or malformed request — returns 400 Bad Request
- Ed25519 signing service failure — attestation cannot be produced

## How this service works

SOL/USD dwell levels (where price spent time / acceptance). Deterministic price-structure attestation over 69d spot history — support, resistance, at-level with strength and proximity. Ed25519 signed. No forward-looking claim. — Ed25519 signed attestation

## Output

A signed JSON payload containing SOL/USD price levels derived from 69-day spot history, classified as support, resistance, or at-level, each with a strength score and proximity metric. The response is Ed25519-signed for cryptographic attestation and contains no forward-looking predictions.

## 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/mycelia-signal-sol-usd-support-resistance-density-oracle-90c65956/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)