Signal API
Pair Trading Intelligence
A production pair trading engine exposed as signals for AI agents and developers. Engle-Granger cointegration, z-score mean reversion, market neutral.
Accordion is a cointegration-based pair trading bot that has been running live for 2+ months. The Signal API exposes its analytical engine as programmable endpoints.
Every signal is grounded in Engle-Granger cointegration testing and z-score mean reversion. The engine classifies market regimes, computes hedge ratios, and generates entry and exit signals. You decide how to size and execute.
Two access modes: x402 micropayments for AI agents (USDC on Base L2, no subscription needed), and API key subscriptions for developers building trading systems.
Data for informational purposes only. Not financial advice. Past performance does not guarantee future results.
Reference backtest: past simulated performance is not a guarantee of future results.
Data for informational purposes only. Not financial advice. Past performance does not guarantee future results.
Discover
Browse cointegrated crypto pairs filtered by regime. See which pairs are tradeable right now.
Analyze
Get z-scores, regime classification, signal direction, and full backtest results for any pair.
Execute
Get entry parameters with hedge ratios and exit signals. You decide sizing and execution.
Monitor
Pull bulk signals across all pairs, scan ranked opportunities, and inspect z-score history — all in one API surface.
Free
GET /v1/strategy/description
Free
Strategy description
GET /v1/strategy/pair_count
Free
Number of tracked pairs
Standard
GET /v1/pairs/tradeable $0.10 List all tradeable pairs
GET /v1/pairs/{pair_key}/evaluate $0.10 Evaluate a pair
GET /v1/signals/{pair_key} $0.05 Get signal for a pair
GET /v1/pairs/{pair_key}/backtest $0.10 Backtest summary
Premium Pro plan
POST /v1/premium/signals/entry_params $0.50 Compute entry sizing (requires leverage + equity)
GET /v1/premium/opportunities $3.00 Top ranked opportunities
GET /v1/premium/signals/all Pro only Bulk signals across all pairs
GET /v1/premium/signals/{pair_key}/history Pro only Z-score history per pair
MeckerCapital provides statistical data and model outputs for informational and educational purposes only. This is not financial, investment, or trading advice. Past performance — whether backtested or live — does not guarantee future results. Full disclaimer →
Free
$0
10 calls/min
- Strategy description + pair count
- Public performance dashboard data
- Community support
- Standard endpoints
- Premium endpoints
- MCP access
Developer
$49 /mo
60 calls/min
- All Standard endpoints (tradeable pairs, evaluate, signal, backtest)
- MCP access
- Email support
- Premium endpoints
- Early access
By subscribing you acknowledge this is data, not financial advice. Details
Sign in to subscribePro
$199 /mo
300 calls/min
Limited to 20 subscribers
- Everything in Developer
- Entry sizing (hedge ratio + position sizes)
- Top opportunities ranked by signal strength
- Bulk signals across all pairs
- Z-score history per pair
- Priority support + early access
By subscribing you acknowledge this is data, not financial advice. Details
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Full reference — authentication, endpoints with parameters, MCP integration, and code examples — lives in the docs.