HTTP API · reference verified
Cloudflare R2 (S3 API)
S3-compatible object storage with zero egress fees.
- endpoint
https://{account}.r2.cloudflarestorage.com- auth
- AWS SigV4
- capabilities
- store a file · upload an object · serve static assets · object storage
- tags
- storage · s3
- pricing
- 10 GB/mo free
- i/o
- binary → binary / xml
- machine-readable
- /api/public/registry/cloudflare-r2-s3-api
Agents can discover Cloudflare R2 (S3 API) through the Agent Nexus MCP server, /llms.txt or the discovery API.