- name
- agentapi
- description
- Browse and search the AgentAPI directory - a curated database of APIs designed for AI agents. Find MCP-compatible APIs for search, AI, communication, databases, payments, and more. Includes free directory access and optional x402 pay-per-use APIs.
- author
- gizmolab
- version
- 1.0.7
- tags
- [api, mcp, agents, directory, search, integrations, x402]
- homepage
- https://agentapihub.com
- source
- https://github.com/gizmolab/agentapi
AgentAPI
A curated directory of APIs designed for AI agents. Machine-readable. MCP-compatible. Agent-accessible.
Website: https://agentapihub.com Docs: https://api.agentapihub.com/api/docs
Free Features
The directory and search functionality is completely free:
# Browse all APIs (FREE)
curl https://agentapihub.com/api/v1/apis
# Search by capability (FREE)
curl "https://agentapihub.com/api/v1/apis?q=send+email&mcp=true"
# Filter by category (FREE)
curl "https://agentapihub.com/api/v1/apis?category=ai"x402 Pay-Per-Use APIs
Some APIs are available through x402 — a pay-per-use protocol using USDC on Base chain.
Available x402 APIs
| API | Endpoint | Approx. Price |
|---|---|---|
| Gemini Chat | /api/gemini/chat/completions | ~$0.001/req |
| Gemini Embeddings | /api/gemini/embeddings | ~$0.0005/req |
How x402 Works
- Call the API endpoint
- Receive
402 Payment Requiredwith price details - Send USDC payment on Base chain
- Retry request with payment proof
- Receive API response
⚠️ Important Safety Notice
x402 payments require explicit setup and should not be automated without safeguards:
- Wallet required: You must configure a wallet with USDC on Base
- User approval recommended: Implement confirmation flows before any payment
- Verify recipient: The payment recipient is
0xcCb92A101347406ed140b18C4Ed27276844CD9D7(gizmolab.eth) - Set spending limits: Configure maximum per-request and daily limits
- This skill does not auto-execute payments — it provides documentation only
For implementation details, see: https://api.agentapihub.com/api/docs
Directory Categories
| Category | APIs | Example |
|---|---|---|
| Search | Brave, Serper, Exa, Tavily, Perplexity | Web search with AI summaries |
| AI & ML | OpenAI, Claude, Gemini, Groq, Replicate | LLM inference, image gen |
| Communication | Resend, Twilio, Slack, Discord, Telegram | Email, SMS, messaging |
| Database | Supabase, Pinecone, Qdrant, Neon, Upstash | SQL, vectors, KV store |
| Payments | Stripe, Lemon Squeezy, PayPal | Payment processing |
| Scraping | Firecrawl, Browserbase, Apify | Web scraping, automation |
| Developer | GitHub, Vercel, Linear, Sentry | Code, deploy, issues |
| Productivity | Notion, Google Calendar, Todoist | Tasks, scheduling |
MCP-Compatible APIs
All 50+ APIs in the directory are MCP-compatible. Filter with ?mcp=true.
API Response Format
{
"id": "resend",
"name": "Resend",
"description": "Modern email API for developers",
"category": "communication",
"provider": "Resend",
"docs": "https://resend.com/docs",
"auth": "api_key",
"pricing": "freemium",
"pricingDetails": "3,000 free/mo, then $20/mo",
"rateLimit": "10 req/sec",
"mcpCompatible": true,
"x402Enabled": false,
"tags": ["email", "transactional", "notifications"]
}Top APIs by Category
Search
- Brave Search - Privacy-focused, 2k free/mo
- Exa - Neural/semantic search for AI
- Tavily - Built specifically for AI agents
AI & ML
- OpenAI - GPT-4, DALL-E, Whisper
- Anthropic Claude - Best for reasoning/coding
- Groq - Fastest inference (500+ tok/sec)
Communication
- Resend - Simple email API, 3k free/mo
- Twilio - SMS/voice, industry standard
- Slack/Discord/Telegram - Team messaging
Database
- Supabase - Postgres + auth + storage
- Pinecone/Qdrant - Vector DBs for RAG
- Upstash - Serverless Redis
Usage Examples
# Find an API for sending emails
Search AgentAPI for "email" → Returns Resend, SendGrid, Twilio
# Find vector databases for RAG
Search AgentAPI for "vector embeddings" → Returns Pinecone, Qdrant, Weaviate
# Find fast LLM inference
Search AgentAPI for category "ai" + filter by latency → Returns Groq, Gemini FlashContributing
Submit new APIs at https://agentapihub.com (Submit API link in footer).
Built By
GizmoLab (@gizmolab_) — gizmolab.io