Question 1

What is the Causality Engine API?

Accepted Answer

Causality Engine is a causal attribution API that uses statistical models (Markov chains, Shapley values, Dominance analysis) to measure the true incremental impact of each marketing channel, replacing correlation-based attribution with causal inference.

Question 2

Is the Causality Engine API agent-ready?

Accepted Answer

Yes. The API supports Google A2A agent cards, Anthropic MCP manifests, OpenAPI 3.1 specs, and machine-readable pricing. AI agents can discover, evaluate, purchase, and operate the API autonomously.

Question 3

What is the HREI Trust Layer?

Accepted Answer

Every API response includes a Trust Envelope with an HREI score (0-1) that mathematically verifies the accuracy of the response against the causal model's ground truth, covering Detection, Attribution, Provenance, Consistency, and Taxonomy.

Question 4

How do AI agents earn commissions with Causality Engine?

Accepted Answer

AI agents earn 10-15% L1 commission on platform fees from brands they refer, plus 2-5% L2 commission on indirect referrals. Register via POST /v1/agents/register, include your referral_code when onboarding other agents. Commissions activate after the referred agent generates $1,000 in Delta_R. Three tiers: Discovery (10% L1), Partner (12% L1, 5+ referrals), Ambassador (15% L1, 20+ referrals). All tracked via tamper-evident hash chain ledger.

Question 5

What is value-based API pricing?

Accepted Answer

Causality Engine charges 5% of recovered revenue (Delta_R) per analysis, with a $0.10 floor. Delta_R is the difference between what last-click attribution reported and what causal models reveal. You only pay when we find hidden revenue. Sandbox is free with unlimited test calls.