Available Integrations
Service Provider Adapters
Pre-built integrations for 11 services: Google Calendar, Gmail, Drive, Stripe, Slack, GitHub, Notion, HubSpot, Salesforce, Linear, Jira.
Credential Vault
Encrypted per-user credential store. Agents exchange grant tokens for upstream service credentials.
MCP Auth Server
Drop-in OAuth 2.1 + PKCE authorization provider for any MCP server.
Grantex Gateway
Zero-code reverse-proxy that enforces grant tokens via YAML config.
Express.js
Grant token verification and scope-based authorization middleware.
FastAPI
Dependency injection for grant token verification and scope checks.
MCP Server
13 tools for Claude Desktop, Cursor, and Windsurf.
LangChain
Scope-enforced tools and audit callbacks.
Vercel AI SDK
Zod-schema tools with scope checks at construction time.
AutoGen / OpenAI
Function calling with scope enforcement and registry.
CrewAI
Python tools with scope enforcement and audit logging.
OpenAI Agents SDK
FunctionTool wrapper with offline scope checks.
Google ADK
Plain function tools for Google Agent Development Kit.
CLI
Manage agents, grants, and audit from your terminal.
A2A Bridge (TypeScript)
Inject Grantex grant tokens into Google A2A agent-to-agent communication.
A2A Bridge (Python)
Python client/server for Grantex-authenticated A2A task exchange.
Conformance Suite
Validate any Grantex server against the spec.
Event Destinations
Forward Grantex events to Datadog, Splunk, S3, BigQuery, and Kafka.
Terraform Provider
Manage Grantex resources as infrastructure with the official Terraform provider.
At a Glance
| Framework | Package | Install | Language |
|---|---|---|---|
| Adapters | @grantex/adapters | npm install @grantex/adapters | TypeScript |
| MCP Auth Server | @grantex/mcp-auth | npm install @grantex/mcp-auth | TypeScript |
| Gateway | @grantex/gateway | npm install @grantex/gateway | TypeScript |
| Express.js | @grantex/express | npm install @grantex/express | TypeScript |
| FastAPI | grantex-fastapi | pip install grantex-fastapi | Python |
| MCP | @grantex/mcp | npm install -g @grantex/mcp | TypeScript |
| LangChain | @grantex/langchain | npm install @grantex/langchain | TypeScript |
| Vercel AI SDK | @grantex/vercel-ai | npm install @grantex/vercel-ai | TypeScript |
| AutoGen / OpenAI | @grantex/autogen | npm install @grantex/autogen | TypeScript |
| CrewAI | grantex-crewai | pip install grantex-crewai | Python |
| OpenAI Agents SDK | grantex-openai-agents | pip install grantex-openai-agents | Python |
| Google ADK | grantex-adk | pip install grantex-adk | Python |
| Go SDK | grantex-go | go get github.com/mishrasanjeev/grantex-go | Go |
| A2A Bridge (TS) | @grantex/a2a | npm install @grantex/a2a | TypeScript |
| A2A Bridge (Py) | grantex-a2a | pip install grantex-a2a | Python |
| CLI | @grantex/cli | npm install -g @grantex/cli | TypeScript |
| Conformance Suite | @grantex/conformance | npm install -g @grantex/conformance | TypeScript |
| Event Destinations | @grantex/destinations | npm install @grantex/destinations | TypeScript |
| Terraform Provider | terraform-provider-grantex | source = "mishrasanjeev/grantex" | Go / HCL |
How Integrations Work
Every integration follows the same pattern:- Wrap your tool function with Grantex scope enforcement
- Pass a grant token (RS256 JWT) from the authorization flow
- Specify the required scope for the tool
- The integration checks the JWT’s
scpclaim offline — no network call - If the scope is missing, the tool throws immediately before your function runs