# Rubric Protocol Hedera Facts Bundle (All)

> Rubric Protocol Hedera Facts Bundle (All) is a paid API for AI agents from rubric-protocol.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-14).

Returns six attested Hedera network facts in a single call: HBAR exchange rate, gas fees, supply, node roster, throughput, and Rubric topic state, each with its own attestation ID.

## Facts

- Endpoint: GET https://rubric-protocol.com/v1/x402/hedera-facts/all
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/rubric-protocol-hedera-facts-bundle-all-a6cb640e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_oWiLb9phIFHHtwaJTc7Og

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 rubric-protocol-hedera-facts-bundle-all-a6cb640e
```

Example prompt: Pull the full Rubric Protocol Hedera facts bundle — I need the current HBAR exchange rate, gas fees, total supply, node roster, throughput, and Rubric topic state, all with their attestation IDs, in one shot.

## When to prefer this

Choose this endpoint when you need all six Hedera network facts atomically in one call rather than making multiple individual requests. It is ideal when you require cryptographic attestation on each fact for audit, compliance, or AI decision anchoring. Prefer it over individual Rubric endpoints when bundling latency and cost matter, or when downstream consumers require a correlated, timestamped snapshot of network state.

## Known failure modes

- Payment not received or insufficient USDC — HTTP 402 response requiring x402 payment
- Hedera mainnet temporarily unreachable — upstream data unavailable error
- Rate limiting if too many calls in a short window
- Malformed or missing attestation IDs if Hedera HCS is congested
- Network timeout if Hedera node responses are slow

## How this service works

All thirteen attested Hedera network facts in one call at GET /v1/x402/hedera-facts/all, each carrying its own attestati

## Output

A JSON object containing six attested Hedera network facts: (1) HBAR/USD exchange rate, (2) current gas fees, (3) total HBAR supply, (4) active node roster, (5) network throughput, and (6) Rubric topic state. Each fact is paired with its own unique attestation ID for cryptographic verifiability.

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/rubric-protocol-hedera-facts-bundle-all-a6cb640e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from rubric-protocol.com](https://www.zero.xyz/host/rubric-protocol.com/llms.txt)