# Root Logos Participation Contribution

> Root Logos Participation Contribution is a paid API for AI agents from runtime.rootlogos.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-14).

Submits a single bounded contribution (observation, question, relation, correction, or proposal) to the Root Logos constitutional knowledge system for evaluation and preservation.

## Facts

- Endpoint: POST https://runtime.rootlogos.com/v1/participation
- 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/root-logos-participation-contribution-d1c75361
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_qV1vsqsulHlq3Wk3xBCDY

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 root-logos-participation-contribution-d1c75361 -d '<json body>'
```

Example prompt: Submit a constitutional observation to Root Logos on my behalf — I consent, attribute it to 'Aria-Agent-7', mark it as an 'observation' from a 'machine' participant, and the content is: 'Recursive self-reference in constitutional clauses creates unbounded evaluation loops that undermine stable governance.' Use contribution ID 'obs-2024-aria-001'.

## When to prefer this

Choose this endpoint when you need to formally submit a bounded, structured contribution (observation, question, correction, relation, or proposal) to a constitutional knowledge or epistemic governance system. Prefer this over generic data submission APIs when the target system is specifically Root Logos and the content is intended for constitutional evaluation and long-term preservation. Not suitable for real-time queries, information retrieval, or general-purpose storage.

## Known failure modes

- consent field not set to true — request rejected
- observation text below 20 or above 6000 characters — validation error
- contribution_id does not match required pattern or length — rejected
- invalid contribution_kind or participant_class enum value — schema error
- duplicate contribution_id — may be rejected or deduplicated
- payment of 0.05 USDC not completed — 402 Payment Required response

## How this service works

Offer one bounded contribution to Root Logos for constitutional evaluation and preservation. Payment grants no admission or authority.

## Output

The endpoint returns a receipt or acknowledgment confirming the contribution was received, along with any evaluation status or preservation confirmation from the Root Logos constitutional system. No authority or admission is granted by payment.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "consent": {
   "type": "boolean",
   "const": true
  },
  "attribution": {
   "type": "string",
   "maxLength": 120
  },
  "observation": {
   "type": "string",
   "maxLength": 6000,
   "minLength": 20
  },
  "contribution_id": {
   "type": "string",
   "pattern": "^[A-Za-z0-9_-]+$",
   "maxLength": 128,
   "minLength": 16
  },
  "contribution_kind": {
   "enum": [
    "observation",
    "question",
    "relation",
    "correction",
    "proposal"
   ],
   "type": "string"
  },
  "participant_class": {
   "enum": [
    "machine",
    "human-machine",
    "undeclared"
   ],
   "type": "string"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/root-logos-participation-contribution-d1c75361/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from runtime.rootlogos.com](https://www.zero.xyz/host/runtime.rootlogos.com/llms.txt)