AI API Router Directory

OpenInference - open-source LLM relay with a single OpenAI-compatible endpoint (Anthropic-format root also available at https://api.openference.com/), API-key auth, automatic provider failover and a zero-data-retention option; free to start, paid plans from USD 1/mo; documented per-model on-demand USD/1M pricing on openference.com/models.

Free plan: 3-day trial with open-source models — no credit card required

NexoToken is a commercial aggregation relay covering 130+ LLMs with an OpenAI-compatible /v1 endpoint. It uses an ultra-low-multiplier (0.01x-0.03x) billing system and offers a daily refreshing free quota for ~40 models.

~40 models offer daily free quotas that auto-refresh the next day (including some Claude/GPT/Gemini models); claims of sign-up bonus and 7-day no-questions refund are platform self-promotion — actual amounts per the console.

ClinePass — Cline's flat $9.99/month subscription giving 2-5x the usage (vs standard API rates) on a curated set of open-weight coding models from Z.ai, Moonshot AI, DeepSeek, MiniMax, MiMo, and Qwen. No separate provider accounts or API keys needed; usable with other agents via the ClinePass API key. Separate from Cline's pay-as-you-go provider.

Flat monthly quota (2-5x API rate); not a per-token credit system.

Tencent CodeBuddy (CN) — Tencent's AI coding tool (IDE, plugin, CLI) backed by the TokenHub LLM platform. Proxies open-weight models from Z.ai, Moonshot, MiniMax, and DeepSeek under a monthly Token Plan (credit-based). Compatible with Claude Code, Codex CLI, Cline, Cursor, OpenCode, Kilo Code, etc. Note: pricing/model data below is from the documented Tencent Cloud Token Plan pages; CN endpoint specifics (copilot.tencent.com) were not separately fetchable, so this reflects the TokenHub plan as documented.

Credits are the unified billing unit; per-model deduction coefficients apply with DeepSeek peak/off-peak pricing (off-peak = half peak). No clean 1 credit = $X mapping documented, so no creditValueUsd.

LLM7.io is an open-source AI API gateway providing unified access to leading models like GPT and DeepSeek. It stands out for its unique anonymous access tier, allowing developers to test models without registration, and a registration-based free tier with higher limits.

Free relay: ~30 RPM anonymous, rising to ~120 RPM with free token from token.llm7.io (20/min, 100/h sub-caps); base URL api.llm7.io/v1 with api_key 'unused'. No token quota published → no USD estimate.

NVIDIA NIM's hosted API (build.nvidia.com / integrate.api.nvidia.com) serves a broad catalog of open-weight models — Nemotron, Llama, Qwen, DeepSeek, GLM and more — in an OpenAI-compatible shape, with a permanent free tier: API key at sign-up, no card, 40 requests/minute by default (200 RPM granted on request, per NVIDIA's developer forums).

Free tier is rate-limited (40 RPM default, 200 on request) rather than credit-based — no USD value to quantify.

Routeway is an AI model router and gateway that provides a unified Bearer-auth interface for multiple global and domestic models. It simplifies integration for developers by handling model-specific protocols and providing a consistent management dashboard for keys and usage.

No public free-tier information found in the source reference; treat free-tier availability as unverified rather than confirmed absent.

SumoPod (ai.sumopod.com) is an AI model API aggregator, often associated with the GAIB compute ecosystem. It typically exposes an OpenAI-compatible gateway for multiple frontier models. Details were checked against the provider's own page at ai.sumopod.com.

No public free-tier information found in the source reference; treat free-tier availability as unverified rather than confirmed absent.

Synthetic runs open-source AI models in private, secure datacenters with an emphasis on privacy and security. It offers an OpenAI-compatible API for integration with standard tools. Access is available via a monthly subscription or standard usage-based pricing.

No public free-tier information found (researched 2026-08-29).

UnoRouter is a unified AI API platform providing access to hundreds of models through a single intelligent endpoint. It is fully OpenAI-compatible and supports various clients including coding agents, character chat, and CLI tools. Features both pay-as-you-go and subscription plans with credit bonuses.

No public free-tier information found in the source reference; treat free-tier availability as unverified rather than confirmed absent.