Overview / Description
AgentID is an AI developer tool that provides persistent identity, memory, and cross-platform portability for AI agents, built for developers and AI builders who run autonomous agents across multiple tools. Rather than starting each session from scratch, AgentID assigns every agent a permanent @handle with a structured persona, searchable key-value memory, a file Drive, portable skill packs, a credential vault, and a persistent inbox for messages received while the agent is offline.
The core mechanism is an MCP URL: developers create an identity once, copy a single URL, and paste it into any MCP-compatible client — Claude Code, Cursor, Windsurf, Codex, Copilot, GitHub Copilot, Cline, Goose, or any of 280+ supported platforms. From that point the agent inherits its persona, memory, and tools on every connection without reconfiguration. The credential vault stores API keys so agents can access them without ever exposing the raw values in a prompt or config file.
AgentID also ships an Identity Library with 186+ curated, fully-formed expert identities — developer, marketer, researcher, writer, and more — each ready to deploy via API. Each identity carries voice rules, beliefs, skills, and a visual 3D card. Prompt Compression (Pro plan) reduces system prompts by up to 65%, cutting context length and inference cost on every request.
For teams, shared identities let every member work with the same agent configuration. The Tasks layer lets developers assign goals to agents via MCP, with check-in and status reporting tracked in a single dashboard. Workflow automations support manual, scheduled, and webhook triggers with a 3,000+ connector library on Pro.
The free plan covers one identity, three connected agents, five memory entries, 10 MB Drive, and one workflow with three runs per day. Pro is $4.80 per month billed annually.
Used For
AgentID is used by developers and AI builders who run autonomous agents across multiple tools and need persistent identity, shared memory, and portable credentials without rebuilding context management from scratch. It targets solo developers, indie hackers, and teams operating agents on Claude Code, Cursor, Codex, or any MCP-compatible platform.
Pricing
Free
$0/month — 1 identity, 3 connected agents, 5 memory entries, 10 MB Drive, 1 workflow with 3 runs/day, full Identity Library access, Claude/OpenAI/JSON export
Pro
$4.80/month (billed annually at $57.60) — unlimited identities, agents, and memory; 1 GB Drive; unlimited workflows and runs; 3,000+ connectors; full Skills Marketplace; Teams; Tasks; Prompt Compression; all export formats. 3-day free trial, no card requi
Pros & Cons
Pros
- Single MCP URL connects any agent to its full identity, memory, and tools across 280+ platforms including Claude Code, Cursor, and Windsurf
- Credential vault stores API keys so agents access them without exposing raw values in prompts or config files
- Identity Library provides 186+ curated, fully-formed expert personas ready to deploy via API in seconds
- Prompt Compression reduces system prompts by up to 65%, cutting context length and cost on every inference request
- Persistent inbox delivers messages and tasks to agents while they are offline, eliminating missed work between sessions
Cons
- Free plan caps memory at 5 entries and Drive at 10 MB, which limits practical use for agents with growing context needs
- Workflow automations on the free plan are restricted to 1 workflow and 3 runs per day
- Teams and shared identities are a Pro-only feature, making collaboration unavailable on the free tier
- Platform is early-stage with 340+ builders, so community skill coverage and ecosystem maturity are limited compared to established agent frameworks
Questions & Answers
Alternatives
Mem0, Zep, LangChain Memory, MemGPT, Letta