Agent Passport System — Cryptographic Identity for AI Agents vs AI Agents API Library
Agent Passport System — Cryptographic Identity for AI Agents is an MCP server published by agent-passport-system. Marketplaces we read that list it: 2 (Official MCP Registry, npm registry (MCP servers)). AI Agents API Library is an MCP server published by eater2. Marketplaces we read that list it: 1 (Official MCP Registry). As of our marketplace pass on 2026-11-14. This pair was picked by a reader, not by our comparison rule, so search engines are asked not to index the page.
Where each is published
| Marketplace |  Agent Passport System — Cryptographic Identity for AI Agents |   AI Agents API Library |
|---|---|---|
| Official MCP Registry | Listed Version: 8.1.1 Downloads/month (npm): 1 651 Downloads/week (npm): 299 Forks (GitHub): 5 Stars (GitHub): 4 Not marked · First seen |
Listed Version: 0.3.12 Downloads/month (npm): 662 Downloads/week (npm): 151 Forks (GitHub): 12 Stars (GitHub): 33 Not marked · First seen |
| npm registry (MCP servers) | Listed Version: 8.1.1 Downloads/month (npm): 1 651 Downloads/week (npm): 299 Forks (GitHub): 5 Stars (GitHub): 4 Not marked · First seen |
Not listed |
Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.
The facts side by side
| Fact | Agent Passport System — Cryptographic Identity for AI Agents | AI Agents API Library |
|---|---|---|
| Marketplaces that list it (differs) | 2 (better) | 1 (worse) |
| Stars (GitHub) (differs) | 4 (worse) | 33 (better) |
| Forks (GitHub) (differs) | 5 (worse) | 12 (better) |
| Last release (differs) | 2026-11-04 (worse) | 2026-11-04 (better) |
| Where it runs (differs) | Remote server or your machine | Remote server (ai-agents-api-library.vercel.app/mcp) |
| Transport (differs) | SSE | Streamable HTTP |
| Tools it declares | Not published | Not published |
| Environment variables it asks for | Not published | Not published |
| Licence (differs) | Apache-2.0 | Not stated |
| Repository (differs) | github.com/agent-passport-system/agent-passport-mcp | github.com/eater2/ai_agents_api_library |
| Changes in the last 7 days | 0 | 0 |
| First seen | 2026-10-11 | 2026-10-11 |
| Endpoint at the last check (differs) | Responded 14 h ago, requires authentication | Responded 3 h ago |
Lines where the two differ have a tinted background and bold values. Where the data itself says which value is better (more marketplaces, a larger figure of the same marketplace, a fresher release, a verified mark on a marketplace that lists both), the better one is also marked green with ▲ and the worse one red with ▼. Where it runs, the transport, the tools, the settings, hooks, the bundle's parts, the licence and the week's changes are marked only as different: more or fewer is not better in itself.
What each says it does
Agent Passport System — Cryptographic Identity for AI Agents
Cryptographic identity, delegation, governance, and commerce for AI agents. 154 tools.
AI Agents API Library
Find APIs and MCP servers for AI agents: auth, free tier, MCP endpoint, docs, last-checked date.
How to run each
Agent Passport System — Cryptographic Identity for AI Agents As a remote MCP server
claude mcp add --transport sse agent-passport-mcp https://mcp.aeoess.com/sseAI Agents API Library As a remote MCP server
claude mcp add --transport http ai-agents-api-library https://ai-agents-api-library.vercel.app/mcpCommands built only from what the marketplaces declare; the full set for every client is on each card.
Both endpoints responded at the last daily check. How we check endpoints
Tools each declares
Neither the marketplaces of Agent Passport System — Cryptographic Identity for AI Agents nor its endpoint list any tools, so we do not compare tools.
Settings each asks for
Neither one's marketplaces publish the settings it asks for.
What it can do: Agent Passport System — Cryptographic Identity for AI Agents · What it can do: AI Agents API Library · Compare two other plugins
Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Package data comes from the public npm registry (registry.npmjs.org). Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.