Diffbot

https://www.diffbot.com/

Auto-built knowledge graph from web crawl. 1T+ facts, 10B+ entities. GraphRAG-fine-tuned model based on open-source Llama 3.3.

Active · Verified 2026-10-27 · fresh as of 2026-10-27 · 41 cited facts, 5 with a third-party source · 1 recorded change · Suggest a correction

At a glance

Tier
T1
Created
2008 third-party fix
Latest release
not applicable — not OSS fix
License
not applicable — not OSS fix
GitHub
not applicable — no GitHub repo fix
Freshness
2026-10-27 fix
Layer
model-infra repo fix
Licensing
commercial vendor fix
Deployment locus
cloud vendor fix
Platform vs product
platform vendor fix
SDK languages
python, rest, typescript vendor fix
Protocols
mcp-server repo fix

When to use

Optimised for: relationship modeling + reasoning + governance over pure vector

Anti-fit: not for purely-vector or simple-RAG use cases (graph adds setup cost)

Pros & cons

Pros

Pre-built knowledge graph of the web (KGoW) — you don't build the graph, you query someone else's; saves enormous extraction cost.

Cons

Quality is bounded by Diffbot's extraction; no schema control; not appropriate for proprietary internal data.

Claims & capabilities

10B+ entities and 1T+ structured facts crawled from public web; 81% accuracy on FreshQA (Google factuality benchmark) — beats ChatGPT and Gemini; 70.36% MMLU-Pro; customers include Cisco, DuckDuckGo, Snapchat, Adobe, AOL, eBay, Microsoft

Technical surface

API surface
REST + GraphQL (DQL Knowledge Graph; Enhance, Extract APIs)
Backend storage
custom
Deployment
Managed-only
Embedding model
locked
Multi-tenancy
hard-isolation
MCP
yes — official diffbot/diffbot-mcp server (extract, search_web, crawl, entity resolution tools)
A2A
no Google A2A (Agent2Agent) integration documented as of 2026-05.
OpenTelemetry
no first-party OpenTelemetry exporter documented; standard logs/metrics typically available.

Compare Diffbot with…

Similar systems

Other knowledge-graph platforms in the catalog, ranked by inbound references.

  • Neo4j T1

    Property graph DB with Cypher; native vector search; Aura Agent + MCP server for graph-as-memory. $100M GenAI investment in 2025.

  • Amazon Neptune Analytics T1

    Vector index on graph nodes queryable via openCypher. Mem0 integration GA 2025; Cognee integration for agentic RAG. Combines semantic recall with multi-hop traversal in one managed service.

  • FalkorDB T2

    Native GraphRAG SDK. Graph-memory backend for Mem0; MCP server via Graphiti integration; context graphs for long-term agent memory.

  • ArangoDB T1

    HybridGraphRAG combines vector search, graph traversal, full-text in one AQL query. ArangoGraphML for ML pipelines; LangChain integration. The company now brands itself Arango (Arango Contextual Data Platform unifying graph, vector, document and search), with ArangoDB as its database.

  • Kuzu T2

    Embedded property-graph database (Cypher) with a built-in vector index and full-text search, widely used as an embedded store for agent memory and GraphRAG. The kuzudb/kuzu repository was archived on 2025-10-10 after Apple acquired the company; 0.11.3 is the final release and earlier releases remain usable.

  • Memgraph T2

    In-memory GraphRAG engine. Memgraph 3.0 adds native vector search alongside graph traversal. LangChain toolkit.

Sources (40 cited facts, 5 third-party)

Each fact links to the page it came from; the badge says who published it (how to read sources).

What changed

Changes to this record's lifecycle, licence, release, pricing and hosting facts, from the catalog's git history. Subscribe (Atom)

  1. 2026-10-27
    • Pricing “SaaS” → “Free $0/month (10,000 credits); Startup $299/month (250,000 credits, overage $0.001/credit); Startup Plus $899/month (1,000,000 credits, overage $0.0009/credit); Enterprise custom” source
    • MCP support first recorded as “yes — official diffbot/diffbot-mcp server (extract, search_web, crawl, entity resolution tools)” source
    #274

Related systems

References (1)

  • Meta Llama 4 family depends on at runtime — GraphRAG-fine-tuned model based on open-source Llama 3.3.

Referenced by (1)

  • LangChain (framework) integrates with — LangChain's all-providers integrations page lists Diffbot: "Structured web knowledge for developers and LLM applications". (verified 2026-10-29)