ACI.dev
Open source tool-calling platform that hooks 600+ tools into any agentic IDE or custom AI agent through direct function calling or a unified MCP server. 4,763 GitHub stars and 21 commits on main in the last 30 days.
“Open source tool-calling platform that hooks 600+ tools into any agentic IDE or custom AI agent through direct function calling or a unified MCP server. 4,763 stars and 21 commits on main in the last 30 days.”
INSTALL THIS SERVER
{
"mcpServers": {
"aci": {
"command": "npx",
"args": [
"-y",
"aci-mcp"
],
"env": {
"ACI_API_KEY": "YOUR_ACI_KEY"
}
}
}
}
{
"mcpServers": {
"aci": {
"command": "npx",
"args": [
"-y",
"aci-mcp"
],
"env": {
"ACI_API_KEY": "YOUR_ACI_KEY"
}
}
}
}
{
"mcpServers": {
"aci": {
"command": "npx",
"args": [
"-y",
"aci-mcp"
],
"env": {
"ACI_API_KEY": "YOUR_ACI_KEY"
}
}
}
}
{
"mcpServers": {
"aci": {
"command": "npx",
"args": [
"-y",
"aci-mcp"
],
"env": {
"ACI_API_KEY": "YOUR_ACI_KEY"
}
}
}
}
{
"mcpServers": {
"aci": {
"command": "npx",
"args": [
"-y",
"aci-mcp"
],
"env": {
"ACI_API_KEY": "YOUR_ACI_KEY"
}
}
}
}
5 TOOLS AVAILABLE
OUR ASSESSMENT
- 4,763 GitHub stars.
- 21 commits on main in the last 30 days.
- Apache-2.0 license, fully open source.
- 600+ tools in one MCP.
- OAuth and API-key flows handled per-app.
- Stdio and streamable-http transports.
- Platform-managed tool surface; updates depend on ACI catalog velocity.
- invoke_tool side effects span 600+ apps; agent prompt path needs strict review.
- ACI account required; free tier limits apply.
ACI_API_KEY plus per-app OAuth tokens carry whatever permissions the connected apps grant. Use a dedicated ACI workspace for agent flows. invoke_tool can call any registered tool; restrict the agent prompt path or pre-filter the tool surface for production agents.
Teams that need many integrations without building per-app MCPs; agent developers running multi-tenant agents; open-source-first organisations choosing ACI over Pipedream/Zapier on license grounds.
TECHNICAL DETAILS
ADOPTION METRICS
// Reading this4,763 stars on aipotheosis-labs/aci. 21 commits on main in the last 30 days.
// Reading thisPairs with Pipedream, Zapier, Make, n8n MCPs in productivity/dev-tools. ACI is the open-source-Apache option for the tool-platform slot.
SOURCES & VERIFICATION
We don't take any single directory's word for it. Before scoring, we cross-reference 4 public MCP sources, install the server ourselves against the clients we cover, and record when we last re-verified.
The same server, 4 different lenses. We reconcile these signals into our editorial score, which is why our number sometimes diverges from a directory-aggregate star count.
| Source | Their rating | Their star count | Their downloads | Last synced |
|---|---|---|---|---|
| AutomationSwitch This page | 4.5editorial | 4,763 | — | MAY 8, 2026 |
| PulseMCP | — unrated | unavailable | unavailable | MAY 8, 2026 |
| MCP.so | — unrated | unavailable | unavailable | MAY 8, 2026 |
| Glama | — unrated | unavailable | unavailable | MAY 8, 2026 |
| Smithery | — unrated | unavailable | unavailable | MAY 8, 2026 |
// Counts are directory-reported; we don't adjust them. Discrepancies usually come from different snapshot times or star-caching.
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DISCUSS YOUR
MCP REQUIREMENTS.
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