# Social Signal

> Signal infrastructure for measured human behavior. Three API-first products that turn real consumer behavior into instantly usable answers for marketers, brand strategists, and AI builders.

Social Signal is a data infrastructure company. We license consumer behavior data from data partnersand expose it through three products: Beacon (website visitor identification and persona-profiling), Graphs (queryable cultural graph via REST API and MCP), and Base (brand projection into the cultural graph from existing customer lists).

Our pricing is per-unit, transparent, and contract-free. Our APIs are designed to be queried by autonomous AI agents as well as human-operated applications. We are MCP-native and x402-ready.

## Products

- [Beacon](https://socialsignal.ai/beacon): Identifies and persona-profiles website visitors. Matches ~35% to opted-in consumer records for contact information. Contact-based pricing.
- [Graphs](https://graph.socialsignal.ai): Queryable graph of measured cultural co-engagement across 8,400 entities (brands, influencers, public figures, products). Available as REST API and MCP server. Per-call pricing.
- [Base](https://base.socialsignal.ai): Projects brands into Graphs from existing customer lists. Hashed-email input only (no raw PII). Per-projection pricing.

## Technical surfaces

- [Graphs REST API](https://graph.socialsignal.ai): Primary product surface, marketing, and live demo
- [Graphs MCP server](https://mcp.socialsignal.ai): Agent-accessible endpoint for the Graph
- [Documentation](https://docs.socialsignal.ai): API reference for all three products

## Methodology

- [How Graphs work](https://graph.socialsignal.ai/concepts): Cosine similarity over mean-centered persona affinity vectors derived from Spatial.ai's Persona Live dataset
- [Data partner](https://www.spatial.ai): Spatial.ai supplies the underlying consumer behavior data

## Company

- Founded by Matthew Dunn, PhD and Shaun Carr
- Headquartered in Bellingham, Washington
- S-Corporation; private; bootstrapped

## What we are not

We are not a marketing automation platform, a CRM, an advertising network, or a survey research firm. We do not offer enterprise contracts, account managers, or stated-preference data. We do not pass PII through our systems.