Universal API Connectivity

REST/HTTP Connector

Connect any REST API, webhook, or microservice. Built-in authentication, transformation, and resilience for production workloads.

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Request Demo Documentation

The Foundation

HTTP as first-class infrastructure

REST APIs power modern applications. Harmony's HTTP connector provides production-grade API gateway capabilities with full request/response transformation.

Zero-code transformations

Define request/response transformations in JSON, not application code.

Built-in resilience

Circuit breakers, retries, and timeouts configured per-pipeline.

Protocol bridge

Connect HTTP to DICOM, FHIR, HL7, and other protocols seamlessly.

# HTTP API gateway

[pipelines.http_proxy]

description = "HTTP proxy with access control"

networks = ["http_net"]

endpoints = ["proxy_endpoint"]

middleware = ["access_control", "passthru"]

backends = ["external_api"]

# HTTP endpoint

[endpoints.proxy_endpoint]

service = "http"

[endpoints.proxy_endpoint.options]

path_prefix = "/"

# Backend

[backends.external_api]

service = "http"

target_ref = "internal_server"

Authentication

Flexible authentication options

Secure APIs with industry-standard authentication methods.

JWT

Validate and decode JWT tokens with configurable issuers and claims verification.

OAuth2

OAuth2 client credentials and authorization code flows for secure API access.

API Keys

Header or query parameter-based API key authentication with key rotation support.

Basic Auth

HTTP Basic authentication for legacy system compatibility.

mTLS

Mutual TLS for certificate-based client authentication.

Custom Headers

Validate custom authentication headers against external auth services.

Capabilities

Production-ready HTTP handling

HTTP/1.1, HTTP/2, HTTP/3

Support for all HTTP versions including QUIC-based HTTP/3 for optimal performance.

Request Transformation

Transform request bodies, headers, and query parameters using JOLT specifications.

Response Transformation

Modify response payloads before returning to clients for schema normalisation.

Authentication

JWT, OAuth2, API keys, Basic Auth, and custom header-based authentication.

Rate Limiting

Configurable rate limits per client, endpoint, or globally with sliding window algorithms.

TLS Termination

TLS 1.2/1.3 with automatic certificate management via Let's Encrypt.

AI & ML

Connect AI agents to your APIs

Use REST APIs as the foundation for AI integrations. Bridge MCP protocol to standard HTTP, route data to cloud AI services, or expose internal APIs to AI systems securely.