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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.

Anthropic SDK

Scope-enforced tool use and audit logging for Claude models.

x402 Payment Protocol

Agent spend authorization for x402 payment flows — GDTs for USDC on Base L2.

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.

Gemma 4 (On-Device)

Offline authorization for Gemma 4 on-device agents — consent bundles, JWT verification, and audit logging without network calls.

DPDP / GDPR Compliance

India DPDP Act 2023 and EU GDPR compliance — consent records, purpose limitation, grievances, and audit exports.

Trust Registry

Public directory of verified AI agent publishers with DID-based identity and compliance badges.

Scope Enforcement

Enforce tool-level permissions on any connector — define your own manifests or use 53 pre-built ones. One-line enforcement via enforce().

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.

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At a Glance

FrameworkPackageInstallLanguage
Adapters@grantex/adaptersnpm install @grantex/adaptersTypeScript
MCP Auth Server@grantex/mcp-authnpm install @grantex/mcp-authTypeScript
Gateway@grantex/gatewaynpm install @grantex/gatewayTypeScript
Express.js@grantex/expressnpm install @grantex/expressTypeScript
FastAPIgrantex-fastapipip install grantex-fastapiPython
MCP@grantex/mcpnpm install -g @grantex/mcpTypeScript
LangChain@grantex/langchainnpm install @grantex/langchainTypeScript
Vercel AI SDK@grantex/vercel-ainpm install @grantex/vercel-aiTypeScript
AutoGen / OpenAI@grantex/autogennpm install @grantex/autogenTypeScript
CrewAIgrantex-crewaipip install grantex-crewaiPython
OpenAI Agents SDKgrantex-openai-agentspip install grantex-openai-agentsPython
Google ADKgrantex-adkpip install grantex-adkPython
Anthropic SDK@grantex/anthropicnpm install @grantex/anthropicTypeScript
Go SDKgrantex-gogo get github.com/mishrasanjeev/grantex-goGo
A2A Bridge (TS)@grantex/a2anpm install @grantex/a2aTypeScript
A2A Bridge (Py)grantex-a2apip install grantex-a2aPython
CLI@grantex/clinpm install -g @grantex/cliTypeScript
Conformance Suite@grantex/conformancenpm install -g @grantex/conformanceTypeScript
Event Destinations@grantex/destinationsnpm install @grantex/destinationsTypeScript
MPP Agent Identity@grantex/mppnpm install @grantex/mppTypeScript
Terraform Providerterraform-provider-grantexsource = "mishrasanjeev/grantex"Go / HCL

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Verifiable Intent & Agentic Commerce

Grantex integrates with emerging standards for agentic commerce through W3C Verifiable Credentials and FIDO2/WebAuthn:

Verifiable Credentials

Issue W3C VCs alongside grant tokens. Agents present portable, tamper-proof proof of authorization to any verifier — no Grantex account required.

FIDO2 / WebAuthn

Passkey-based human presence verification. Cryptographic proof that a real human authorized the agent, embedded in grants and VCs.

DID Infrastructure

W3C DID document at did:web:grantex.dev. Any party can verify Grantex-issued credentials using published public keys.

MPP Agent Passport

Agent identity for machine payments. Issue W3C VC 2.0 passports with spending limits, category restrictions, and offline merchant verification in <50ms.
These capabilities support the Mastercard Verifiable Intent specification and similar agentic commerce frameworks. When an agent needs to prove its authorization to a payment processor, merchant, or third-party API, it presents a Verifiable Credential that the receiving party can verify independently using the Grantex DID document.
Verifiable Credentials are opt-in. Pass credentialFormat: "vc-jwt" during token exchange to receive a VC alongside the standard grant token. Existing integrations continue to work unchanged.

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Enterprise Identity & Access

Enterprise SSO

OIDC + SAML 2.0 + LDAP single sign-on with multi-IdP connections, domain-based routing, LDAP directory authentication, JIT provisioning, group-to-scope mapping, and SSO enforcement.

SCIM 2.0 Provisioning

Sync agents and principals from your identity provider automatically via SCIM 2.0.

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How Integrations Work

Every integration follows the same pattern:
  1. Wrap your tool function with Grantex scope enforcement
  2. Pass a grant token (RS256 JWT) from the authorization flow
  3. Specify the required scope for the tool
  4. The integration checks the JWT’s scp claim offline — no network call
  5. If the scope is missing, the tool throws immediately before your function runs
This means scope enforcement is completely decoupled from the Grantex API — your agent’s tools work even if the Grantex server is unreachable.