LLM Chat Completions API
LLM inference API: OpenAI-compatible chat completions for 100+ AI models (DeepSeek, GPT, Claude, Gemini, Grok, GLM, Qwen, Kimi, Llama, Mistral). Suited for AI agents that need on-demand text generation, coding or tool calling paid per request in USDC on Base with x402: no account, no API key. Model in body.model (GET /v1/models); streaming supported. Exact price in the 402 quote; automatic refund
- Category
- AI & agents
- Starting price
- $0.001
- Paid calls · 30 days
- 68
- Unique payers · 30 days
- 57
Paid endpoints
26 endpoints, sorted by usage. Prices are per request.
- POST/v1/chat/completions
LLM inference API: OpenAI-compatible chat completions for 100+ AI models (DeepSeek, GPT, Claude, Gemini, Grok, GLM, Qwen, Kimi, Llama, Mistral). Suited for AI agents that need on-demand text generation, coding or tool calling paid per request in USDC on Base with x402: no account, no API key. Model in body.model (GET /v1/models); streaming supported. Exact price in the 402 quote; automatic refund
$0.0014Base9calls / 30d - POST/v1/chat/completions/deepseek%2Fdeepseek-chat
DeepSeek V4 Flash Chat API (deepseek/deepseek-chat): LLM inference via OpenAI-compatible chat completions, pay per call in USDC on Base with x402. No API key, no account. Suited for AI agents and scripts that need DeepSeek V4 Flash Chat on demand. When listed, this request cost 30% less than the same request on BlockRun. Streaming and function calling supported. Exact price in the 402 quote before
$0.0014Base8calls / 30d - POST/llm/claude-haiku-5.5
Claude Haiku 5.5 API (anthropic/claude-haiku-5.5): LLM inference via OpenAI-compatible chat completions, pay per call in USDC on Base with x402. No API key, no account. Suited for AI agents and scripts that need Claude Haiku 5.5 on demand. Streaming and function calling supported. Exact price in the 402 quote before payment; automatic refund if the model fails to answer.
$0.001Base3calls / 30d - POST/llm/gpt-oss-120b
OpenAI GPT OSS 120B API (openai/gpt-oss-120b): LLM inference via OpenAI-compatible chat completions, pay per call in USDC on Base with x402. No API key, no account. Suited for AI agents and scripts that need OpenAI GPT OSS 120B on demand. Streaming and function calling supported. Exact price in the 402 quote before payment; automatic refund if the model fails to answer.
$0.001Base3calls / 30d - POST/llm/grok-4.7
Grok 4.7 API (xai/grok-4.7): LLM inference via OpenAI-compatible chat completions, pay per call in USDC on Base with x402. No API key, no account. Suited for AI agents and scripts that need Grok 4.7 on demand. When listed, this request cost 30% less than the same request on BlockRun. Streaming and function calling supported. Exact price in the 402 quote before payment; automatic refund if the mode
$0.0091Base3calls / 30d - POST/llm/mistral-large-4
Mistral Large 4 API (mistral/mistral-large-4): LLM inference via OpenAI-compatible chat completions, pay per call in USDC on Base with x402. No API key, no account. Suited for AI agents and scripts that need Mistral Large 4 on demand. Streaming and function calling supported. Exact price in the 402 quote before payment; automatic refund if the model fails to answer.
$0.0023Base2calls / 30d - POST/llm/gpt-6-astra
GPT-6 Astra API (openai/gpt-6-astra): LLM inference via OpenAI-compatible chat completions, pay per call in USDC on Base with x402. No API key, no account. Suited for AI agents and scripts that need GPT-6 Astra on demand. When listed, this request cost 5% less than the same request on BlockRun. Streaming and function calling supported. Exact price in the 402 quote before payment; automatic refund
$0.0019Base2calls / 30d - POST/llm/claude-opus-5
Claude Opus 5 API (anthropic/claude-opus-5): LLM inference via OpenAI-compatible chat completions, pay per call in USDC on Base with x402. No API key, no account. Suited for AI agents and scripts that need Claude Opus 5 on demand. When listed, this request cost 30% less than the same request on BlockRun. Streaming and function calling supported. Exact price in the 402 quote before payment; automat
$0.0014Base2calls / 30d - POST/llm/claude-opus-5.5
Claude Opus 5.5 API (anthropic/claude-opus-5.5): LLM inference via OpenAI-compatible chat completions, pay per call in USDC on Base with x402. No API key, no account. Suited for AI agents and scripts that need Claude Opus 5.5 on demand. When listed, this request cost 30% less than the same request on BlockRun. Streaming and function calling supported. Exact price in the 402 quote before payment; a
$0.0014Base2calls / 30d - POST/llm/claude-sonnet-5
Claude Sonnet 5 API (anthropic/claude-sonnet-5): LLM inference via OpenAI-compatible chat completions, pay per call in USDC on Base with x402. No API key, no account. Suited for AI agents and scripts that need Claude Sonnet 5 on demand. When listed, this request cost 30% less than the same request on BlockRun. Streaming and function calling supported. Exact price in the 402 quote before payment; a
$0.0014Base2calls / 30d - POST/llm/claude-sonnet-5.5
Claude Sonnet 5.5 API (anthropic/claude-sonnet-5.5): LLM inference via OpenAI-compatible chat completions, pay per call in USDC on Base with x402. No API key, no account. Suited for AI agents and scripts that need Claude Sonnet 5.5 on demand. When listed, this request cost 30% less than the same request on BlockRun. Streaming and function calling supported. Exact price in the 402 quote before paym
$0.0014Base2calls / 30d - POST/llm/deepseek-chat
DeepSeek V4 Flash Chat API (deepseek/deepseek-chat): LLM inference via OpenAI-compatible chat completions, pay per call in USDC on Base with x402. No API key, no account. Suited for AI agents and scripts that need DeepSeek V4 Flash Chat on demand. When listed, this request cost 30% less than the same request on BlockRun. Streaming and function calling supported. Exact price in the 402 quote before
$0.0014Base2calls / 30d - POST/llm/deepseek-v4-pro
DeepSeek V4 Pro API (deepseek/deepseek-v4-pro): LLM inference via OpenAI-compatible chat completions, pay per call in USDC on Base with x402. No API key, no account. Suited for AI agents and scripts that need DeepSeek V4 Pro on demand. When listed, this request cost 30% less than the same request on BlockRun. Streaming and function calling supported. Exact price in the 402 quote before payment; au
$0.0014Base2calls / 30d - POST/llm/gemini-3.1-pro
Gemini 3.1 Pro API (google/gemini-3.1-pro): LLM inference via OpenAI-compatible chat completions, pay per call in USDC on Base with x402. No API key, no account. Suited for AI agents and scripts that need Gemini 3.1 Pro on demand. When listed, this request cost 30% less than the same request on BlockRun. Streaming and function calling supported. Exact price in the 402 quote before payment; automat
$0.0014Base2calls / 30d - POST/llm/gemini-3.6-flash
Gemini 3.6 Flash API (google/gemini-3.6-flash): LLM inference via OpenAI-compatible chat completions, pay per call in USDC on Base with x402. No API key, no account. Suited for AI agents and scripts that need Gemini 3.6 Flash on demand. When listed, this request cost 30% less than the same request on BlockRun. Streaming and function calling supported. Exact price in the 402 quote before payment; a
$0.0014Base2calls / 30d - POST/llm/gemini-3.8-flash
Gemini 3.8 Flash API (google/gemini-3.8-flash): LLM inference via OpenAI-compatible chat completions, pay per call in USDC on Base with x402. No API key, no account. Suited for AI agents and scripts that need Gemini 3.8 Flash on demand. When listed, this request cost 30% less than the same request on BlockRun. Streaming and function calling supported. Exact price in the 402 quote before payment; a
$0.0014Base2calls / 30d - POST/llm/glm-5.3
GLM-5.3 API (zai/glm-5.3): LLM inference via OpenAI-compatible chat completions, pay per call in USDC on Base with x402. No API key, no account. Suited for AI agents and scripts that need GLM-5.3 on demand. When listed, this request cost 30% less than the same request on BlockRun. Streaming and function calling supported. Exact price in the 402 quote before payment; automatic refund if the model f
$0.0014Base2calls / 30d - POST/llm/gpt-5.5
GPT-5.5 API (openai/gpt-5.5): LLM inference via OpenAI-compatible chat completions, pay per call in USDC on Base with x402. No API key, no account. Suited for AI agents and scripts that need GPT-5.5 on demand. When listed, this request cost 30% less than the same request on BlockRun. Streaming and function calling supported. Exact price in the 402 quote before payment; automatic refund if the mode
$0.0014Base2calls / 30d - POST/llm/gpt-6-luna
GPT-6 Luna API (openai/gpt-6-luna): LLM inference via OpenAI-compatible chat completions, pay per call in USDC on Base with x402. No API key, no account. Suited for AI agents and scripts that need GPT-6 Luna on demand. When listed, this request cost 30% less than the same request on BlockRun. Streaming and function calling supported. Exact price in the 402 quote before payment; automatic refund if
$0.0014Base2calls / 30d - POST/llm/gpt-6.1-sol
GPT-6.1 Sol API (openai/gpt-6.1-sol): LLM inference via OpenAI-compatible chat completions, pay per call in USDC on Base with x402. No API key, no account. Suited for AI agents and scripts that need GPT-6.1 Sol on demand. When listed, this request cost 30% less than the same request on BlockRun. Streaming and function calling supported. Exact price in the 402 quote before payment; automatic refund
$0.0014Base2calls / 30d - POST/llm/kimi-k3
Kimi K3 API (moonshot/kimi-k3): LLM inference via OpenAI-compatible chat completions, pay per call in USDC on Base with x402. No API key, no account. Suited for AI agents and scripts that need Kimi K3 on demand. When listed, this request cost 30% less than the same request on BlockRun. Streaming and function calling supported. Exact price in the 402 quote before payment; automatic refund if the mo
$0.0014Base2calls / 30d - POST/llm/minimax-m3
MiniMax M3 API (minimax/minimax-m3): LLM inference via OpenAI-compatible chat completions, pay per call in USDC on Base with x402. No API key, no account. Suited for AI agents and scripts that need MiniMax M3 on demand. When listed, this request cost 30% less than the same request on BlockRun. Streaming and function calling supported. Exact price in the 402 quote before payment; automatic refund i
$0.0014Base2calls / 30d - POST/llm/qwen3.8-max
Qwen3.8 Max API (qwen/qwen3.8-max): LLM inference via OpenAI-compatible chat completions, pay per call in USDC on Base with x402. No API key, no account. Suited for AI agents and scripts that need Qwen3.8 Max on demand. When listed, this request cost 30% less than the same request on BlockRun. Streaming and function calling supported. Exact price in the 402 quote before payment; automatic refund i
$0.0014Base2calls / 30d - POST/llm/deepseek-v4.1-flash
DeepSeek V4.1 Flash API (deepseek/deepseek-v4.1-flash): LLM inference via OpenAI-compatible chat completions, pay per call in USDC on Base with x402. No API key, no account. Suited for AI agents and scripts that need DeepSeek V4.1 Flash on demand. Streaming and function calling supported. Exact price in the 402 quote before payment; automatic refund if the model fails to answer.
$0.001Base2calls / 30d - POST/llm/gemini-4-argon
Gemini 4 Argon API (google/gemini-4-argon): LLM inference via OpenAI-compatible chat completions, pay per call in USDC on Base with x402. No API key, no account. Suited for AI agents and scripts that need Gemini 4 Argon on demand. Streaming and function calling supported. Exact price in the 402 quote before payment; automatic refund if the model fails to answer.
$0.001Base2calls / 30d - POST/llm/llama-3.3-70b
Llama 3.3 70B API (meta-llama/llama-3.3-70b): LLM inference via OpenAI-compatible chat completions, pay per call in USDC on Base with x402. No API key, no account. Suited for AI agents and scripts that need Llama 3.3 70B on demand. Streaming and function calling supported. Exact price in the 402 quote before payment; automatic refund if the model fails to answer.
$0.001Base2calls / 30d