SelfPing developer documentation

SelfPing is an SMS-to-self API: one endpoint, one key, and texts can only go to the phone number that created the key. Everything a developer or an agent needs is linked below.

The API

• POST https://www.selfping.com/api/sms with Authorization: Bearer <key> and {"message": "..."}
• openapi.json request and response shapes for every endpoint
• npm package npm install selfping, one function, zero dependencies
• GET /api/health service status

Agent integrations

• Setup guide copy-paste config for Claude Code, Cursor and Codex
• MCP server at https://www.selfping.com/api/mcp exposing the send_ping tool
• Completion hooks: https://www.selfping.com/api/hooks/claude-code, /cursor and /codex
• Agent skill when and how an agent should text its user

Machine-readable indexes

• llms.txt the short index, and llms-full.txt the complete reference in one fetch
• API catalog and MCP server card
• Every content page answers to Accept: text/markdown or a .md suffix

Auth

• auth.md credential setup for agents
• Dashboard where a signed-in human generates the key