Plugmere
One gateway where AI agents borrow every SaaS tool. 1,447 tools across 10 providers with API-key and OAuth auth, per-user connections, quotas, and metering.
request trace — one tool call, hop by hop
Claude Code, Claude.ai, ChatGPT connector, opencode
↳ Two client worlds: desktop CLI keys, browser OAuth
FastMCP 4.x mounted in FastAPI — /mcp, one port
↳ Gateway and control plane ship as one ASGI app
Bearer key → user_id · OAuth DCR + PKCE for connectors
↳ Machines get keys, humans get Google login
Per-key rate limit · 5,000 calls/user/day · circuit breaker
↳ 429s carry a retry hint; a sick provider can't drain the pool
Dynamic OpenAPI adapter — securitySchemes parsed per tool
↳ New providers become tools by importing a spec, not writing code
Self-hosted Nango — OAuth storage + token refresh
↳ No third-party custody of user credentials
Neon Postgres — 14 tables, tool_calls + metric_daily
↳ Every call is metered, so limits become plan entitlements later
Status page, 90-day uptime, 15-min abuse cron → Brevo alerts
↳ It watches itself: error spikes, DCR spam, quota burn
plug it in yourself
$claude mcp add --transport http plugmere https://plugmere-api.onrender.com/mcp \$ --header "Authorization: Bearer sk-xxxx"
$git clone https://github.com/plugmere/plugmere.git$pip install -r requirements.txt$python plugmere/server.py