99 MCP

Unofficial. Not affiliated with, endorsed by, or supported by 99 or DiDi. Not 99Food, 99Pay, 99Entrega, metro tickets, or the 99 corp B2B API. The passenger gulfstream surface can change without notice.

Never pays by default. ninenine_request_ride and ninenine_cancel_ride do nothing unless NINENINE_ALLOW_MUTATIONS is enabled and explicit_user_intent is true. Guest tokens cannot charge. Street, phone, email and GPS/latlng polylines are redacted (status / ETA / category only).

Setup in 60 seconds

npx -y ninenine-mcp-unofficial setup
npx -y ninenine-mcp-unofficial auth --from-header "Bearer eyJ…"
npx -y ninenine-mcp-unofficial doctor

Token is not OAuth. Capture a passenger request to api.99taxis.mobi → copy the Authorization header. Fare estimates still run without a token; pay tools stay blocked.

Stdio snippet (Claude Desktop, Cursor, Grok Bot). Do not set mutations in the snippet:

{
  "mcpServers": {
    "ninenine": {
      "command": "npx",
      "args": ["-y", "ninenine-mcp-unofficial"]
    }
  }
}

See examples/claude-desktop.json and examples/grok-bot.md.

Related MCP server: Uber MCP Server

Skill or MCP

Same package, two doors. MCP registers tools on stdio/HTTP. The skill is the workflow (estimate → compare Pop/Moto → stop) and can drive the same tools through the CLI when the client has no MCP:

npx -y ninenine-mcp-unofficial call ninenine_estimate --json '{"from_lat":-3.73,"from_lng":-38.52,"to_lat":-3.74,"to_lng":-38.54}'

Gates are identical. Copy skill/SKILL.md into your agent skills dir (~/.agents/skills/ninenine/ or Claude/Grok equivalent).

Tools

HTTP (optional, loopback)

Default transport is stdio. Streamable HTTP binds 127.0.0.1 and checks Origin against http://127.0.0.1:<port> (override with NINENINE_MCP_ALLOWED_ORIGIN). This is DNS-rebinding mitigation, not a public server.

npx -y ninenine-mcp-unofficial --http
# GET  http://127.0.0.1:3000/health
# POST http://127.0.0.1:3000/mcp

Security

Tokens live in ~/.ninenine-mcp/tokens.json (0600). They are not in git, the npm tarball, or default examples. Full notes: SECURITY.md. Agents: llms.txt.

Tests

npm test

No live 99 login required.