2s — the (most) everything API is a paid API for AI agents from 2s.io, paid per call via x402, $0.0025/call, status unknown (last checked 2026-09-15).
The (most) everything API: 575+ pay-per-call endpoints for AI agents — ground-truth data, a full AI gateway, and agent infrastructure (storage, queues, watchers). USDC via x402, no signup, no API keys, and upto billing: pay actual usage, not the quote.
POSThttps://2s.io/api/ai/chatNone
| Field | Type | Description |
|---|---|---|
| stop | string | |
| model | string | Gateway model id (see GET /api/ai/models). |
| top_p | number | |
| messages | array | OpenAI-style [{role, content}]. |
| max_tokens | integer | Max output tokens (default 1024). |
| temperature | number |
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