NumValidate
Numverify
Antideo
Numlookupapi.com
RealPhoneValidation
Melissa Data Quality
RealValidito
Abstract APIs
ChainMemory
Mem0
Memori
Agentmemory
Tempreon
cognee
TheSecondBrain.dev
Suprflo
ChainMemory gives your AI agents persistent memory that belongs to YOU — not to a single vendor.
Save a memory in ChatGPT, recall it in Claude or Gemini. Available via Chrome extension, MCP server (npm), or REST API. Every memory gets a cryptographic fingerprint and project states are anchored with Merkle proofs, so anyone can independently verify integrity — no trust required.
Memories consolidate into a structured Project Brain (decisions, milestones, risks) instead of a pile of raw notes. Multi-agent native: Claude, Cursor and GPT share one consolidated state. Free tier available.
ChainMemoryNumverify - Global phone number validation and lookup API
Mem0 - Your private, local memory layer for all AI tools
Antideo - Email, IP address and phone number validation API service
Memori - Persistent memory from agent trace, not just conversation
Numlookupapi.com - Our phone number lookup & validation API is the perfect tool to automate fraud protection & clean your database.
Agentmemory - Persistent memory for Claude Code, Codex & coding agents