API Orchestration
Orthogonal
Trusted skills and APIs marketplace for agent discovery and execution
Category
API Orchestration
Layers that help agents discover, authenticate to, route, govern, and execute APIs or reusable tools.
Editorial scope version 1.1 ยท effective 22 October 2026
Category listing
4 API Orchestration Tools
API Orchestration
402cron
Hosted scheduled HTTP delivery for agents, with REST and MCP management and prepaid x402 credits.
API Orchestration
looot
A hosted catalog of data endpoints behind one token and prepaid balance, exposed to agents over a remote MCP server, CLI and REST API
API Orchestration
Provenant
Agent action authorization with mandates, policy checks, human approvals, and an audit ledger
Definition
What belongs in API Orchestration?
This category covers infrastructure between an agent and external APIs where discovery, credentials, policy, routing, or execution materially improves safe tool use.
Includes reusable layers between agents and external APIs that handle tool discovery, credentials, permissions, policy, routing, execution, or recovery.
Scope
Inclusion and exclusion criteria
Include when
- The product gives agents a documented way to discover and invoke APIs, tools, or skills.
- Credential protection, permissions, policy, or execution mediation is a core capability.
- It provides a reusable orchestration layer rather than one isolated integration.
Exclude when
- It is a conventional API gateway or client with no substantive agent workflow.
- Its agent support is limited to exposing an existing endpoint through a thin wrapper.
Selection guide
How to compare these tools
- How are tools discovered and described to the agent?
- Where do credentials live and how is access constrained?
- What approval, logging, retry, and error-handling controls exist?
Typical use cases
- Expose a governed catalog of APIs or skills to agents
- Mediate credentials and permissioned tool execution
- Approve, log, retry, and recover agent API calls
Category evidence
Sources for this category guidance
- Model Context Protocol tools specification
The MCP tools specification defines how models discover schema-described tools and invoke them, while recommending user visibility and confirmation for tool calls.
accessed 2026-09-03
Comparable facts
API Orchestration comparison
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| Tool | Classification | Pricing | Interfaces | Deployment | Verification |
|---|---|---|---|---|---|
| Orthogonal | Agent-enabling | Freemium | REST API, TypeScript SDK, MCP server, command-line interface, agent skills | hosted | documentation reviewed |
| 402cron | Agent-enabling | Paid | REST API, MCP | hosted | documentation reviewed |
| looot | Agent-enabling | Paid | REST API, MCP, CLI | hosted | documentation reviewed |
| Provenant | Agent-native | Freemium | REST API, TypeScript SDK, Python SDK, MCP | hosted, self-hosted | documentation reviewed |