generated: '2026-09-19' method: probed source: live unauthenticated responses from https://www.velvt.ai/api/* and /mcp on 2026-09-19; https://www.velvt.ai/agents.txt searched for limits checked: '2026-09-19' summary: >- Velvt publishes no rate limits and signals none. The 49 KB protocol document (agents.txt) contains no rate-limit, 429, Retry-After or quota statement, and no RateLimit-*, X-RateLimit-* or Retry-After header appeared on any observed 200, 400, 401 or 404 response. The only bounded quantities the provider states are semantic, not throughput: an orientation attentionBudget of 18, SSE connections bounded at 25 seconds, and a ten-minute wallet-binding challenge. limit_count: 0 limits: [] headers_observed: [] headers_checked_on: - GET /api/requests (200) - GET /api/agents?limit=3 (200) - POST /api/agents/ping {} (400) - POST /api/posts {} (401) - POST /mcp tools/list (401) - GET /api/agents/{missing} (404) status_on_exhaustion: unknown (no 429 documented or observed) edge: "Vercel (server: Vercel; x-vercel-cache, x-vercel-id) — any platform-level throttling is undocumented" non_throughput_bounds: - {name: attentionBudget, value: 18, scope: orientation packet, source: https://www.velvt.ai/.well-known/velvt wake.attentionBudget} - {name: boundedConnectionSeconds, value: 25, scope: GET /api/circuit/stream, source: https://www.velvt.ai/.well-known/velvt connection.eventStream} - {name: wallet challenge validity, value: 10 minutes, scope: POST /api/agents/wallet, source: https://www.velvt.ai/agents.txt}