# Quotient API

> Accesses Quotient market intelligence through either x402 micropayments or API key auth, with explicit 402 challenge/settle handling when using x402.

- Skill: `enuno/quotient-api` (Agent Skill, multi-file: 6 files)
- Install (CLI): `npx skillmds@latest add enuno/quotient-api`
- Raw SKILL.md: https://api.skillmd.com/api/skills/enuno/quotient-api/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Integrations & APIs
- Author: enuno (https://skillmd.com/u/enuno)
- Updated: 2026-08-19
- Page: https://skillmd.com/skills/enuno/quotient-api

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# Quotient API Skill

Use this skill when an agent needs Quotient market intelligence and must execute x402 payment flows correctly.

## Base URL

- `QUOTIENT_BASE_URL`: `https://q-api.quotient.social`
- Use this single origin for runtime requests and discovery docs (`/openapi.json`, `/api/public/pricing`, `/llms.txt`, `/skill/*`).

## Access Model

- Use x402 or API key for monetized requests.
- Prefer Bankr wallet tooling when available.
- Support vanilla SIWE/SIWX x402 clients as a first-class fallback.
- Include `x-quotient-api-key` when available; runtime requests can be authorized via either x402 payment handling or API key auth.
- If using Bankr signing (`/agent/sign`), provide a Bankr API key via `X-API-Key` with Agent API access enabled and signing permissions (not read-only).

## Getting a Quotient API Key

- Sign up (or log in) at `https://dev.quotient.social`.
- Account creation supports:
  - email login
  - Google login
- New accounts include free credits, so users can try the API before paying.
- After signup/login, create or copy a Quotient API key from the Quotient account settings/developer area.
- Pass the key to the agent via config/secrets as `x-quotient-api-key` (or equivalent env/secret wiring used by your client).

## Operator vs Agent Signup Path

- Preferred: human operator completes signup/login and key creation, then injects the API key into agent config.
- Optional self-serve agent path: if your runtime supports browser automation plus secure secret storage, the agent can perform signup/login at `https://dev.quotient.social`, generate a key, and store it for later requests.
- If interactive auth (email verification, Google OAuth, CAPTCHA, 2FA, policy prompts) cannot be completed programmatically, fall back to the human-operator path.

## x402 API Call Checklist

1. Send request to Quotient gateway without payment headers.
2. If response is `402`, parse `PAYMENT-REQUIRED`.
3. Sign payment and retry with `PAYMENT-SIGNATURE`.
4. On success, parse `PAYMENT-RESPONSE`.
5. Apply retry/backoff rules for `429` and transient `5xx`.

## Required Preflight (Deterministic)

Before the first API call in a session, fetch these discovery endpoints:

- `/openapi.json`
- `/api/public/pricing`
- Treat OpenAPI as canonical route and invocation metadata.
- Treat pricing endpoint as supplemental billing/network metadata (assets, chains, credit mapping), and treat runtime `402` challenge data as authoritative.
- Cache pricing metadata and refresh periodically (for example, every 15-60 minutes) or immediately when runtime `402` details differ from cache.

## Canonical Endpoints and Discovery

- OpenAPI: `/openapi.json`
- Pricing discovery endpoint: `GET /api/public/pricing`
- AI index: `/llms.txt`

## Core Endpoints

- `GET /api/v1/markets` - covered markets with forecast status
- `GET /api/v1/markets/mispriced` - markets where Q diverges from market odds
- `GET /api/v1/markets/lookup` - batch lookup by slugs or condition IDs
- `GET /api/v1/markets/{slug}/intelligence` - full intelligence on a single market
- `GET /api/v1/markets/{slug}/signals` - paginated analyst signals for a market
## References

- API reference: `/skill/references/api-reference.md`
- Bankr-preferred x402 flow: `/skill/references/bankr-preferred-flow.md`
- Vanilla x402 flow: `/skill/references/vanilla-x402-flow.md`
- Error handling: `/skill/references/error-handling.md`