Temporal Claim Graph — tracking what AI vendors claim

Know what
AI vendors claim

SDF Protocol crawls AI vendor websites, extracts atomic claims about pricing, compliance, data handling, and capabilities — then tracks when they change and where they contradict.

Explore the claim graph→API Reference
GET /v1/claims?domain=anthropic.com&claim_type=trains_on_data
{
  "entity": "Anthropic",
  "claim_type": "trains_on_data",
  "predicate": "trains_on_customer_data",
  "value": false,
  "confidence": 0.92,
  "source_url": "anthropic.com/privacy",
  "observed_at": "2026-03-20T08:15:00Z",
  "valid_from": "2026-02-01T00:00:00Z",
  "contradiction_state": "none"
}
—
Vendors tracked
—
Active claims
—
Changes detected
—
Contradictions

16 claim types, timestamped

Every claim is an atomic fact extracted from a vendor's own pages — with provenance, confidence score, temporal validity, and contradiction status.

💰
Pricing
pricing_model
🛡️
SOC 2
compliance_soc2
🧠
Training Data
trains_on_data
📐
Context Window
context_window
🗄️
Data Retention
data_retention
🔌
MCP Support
mcp_support
🏠
Self-hosted
self_hosted
📋
SLA Claims
sla_claims

+ compliance_hipaa, compliance_gdpr, sso_scim, data_residency, free_tier, api_availability, subprocessors, enterprise_features

How the claim graph works

Automated pipeline from vendor page to structured claim — with temporal tracking and contradiction detection.

01

Crawl vendor pages

Priority-weighted scheduler fetches pricing, security, compliance, and API pages from tracked AI vendors.

02

Extract atomic claims

Local AI models decompose page content into typed claims: pricing_model, trains_on_data, compliance_soc2, etc.

03

Detect changes

Diff engine compares new claims against previous snapshots. Significance scoring surfaces what matters.

04

Flag contradictions

Cross-page and cross-source analysis detects when a vendor says different things in different places.

Built for AI agents and humans

Agents

MCP Server

9 tools that let AI agents query vendor claims, compare offerings, and verify facts in real-time. Works with Claude, GPT, and any MCP-compatible client.

Setup guide →
Developers

REST API

Query entities, claims, changes, and contradictions via JSON API. Public endpoints need no auth key. Rate-limited at 100 req/min.

API reference →
Everyone

Explorer UI

Browse vendor profiles, real-time change feeds, side-by-side comparisons, and watchlist notifications. No account needed for public data.

Start exploring →

One config file for your agent

Add the SDF MCP server to your AI workflow. Your agent gets instant access to vendor claims, change history, and contradiction alerts — no API key needed for public data.

find_vendors — Search tracked AI vendors
get_vendor_profile — Full claim profile with contradictions
compare_vendors — Side-by-side claim comparison
verify_claim — Check specific claims + contradiction status
get_recent_changes — Real-time change feed
mcp_settings.json
{
  "mcpServers": {
    "sdf-protocol": {
      "command": "npx",
      "args": [
        "@sdfprotocol/mcp-server"
      ],
      "env": {
        "SDF_API_URL":
          "https://api.sdfprotocol.com"
      }
    }
  }
}

Stop trusting vendor marketing

Track what AI vendors actually claim about their products. Get notified when they change. Spot contradictions automatically.

Explore the claim graphRequest a vendor