PDDikti API

Bun + Hono API providing structured access to Indonesia higher-education data (PDDikti): universities, study programs, lecturers, students, and aggregate statistics.

This service is a typed proxy in front of a private upstream PDDikti data source, with auto-generated OpenAPI docs.

Requirements

• Bun ≥ 1.3

Related MCP server: YOKATLAS MCP Server

Setup

bun install
cp .env.example .env   # set UPSTREAM_BASE_URL; supply Cloudflare creds at runtime (see below)

Run

bun run dev     # hot reload
bun run start   # start server

Open http://localhost:3000.

Docker setup

Run as three containers — the API + a FlareSolverr sidecar (hands-off Cloudflare clearance) + Redis (response cache) — via the provided docker-compose.yml:

docker compose up -d          # build + start api (:3000) + flaresolverr
docker compose logs -f api    # follow API logs
docker compose down           # stop

What it wires:

• api — built from the multi-stage Dockerfile (oven/bun:1.3-alpine, frozen-lockfile deps-only install). Reads .env; compose also sets SOLVER_ENABLED=true, SOLVER_URL=http://flaresolverr:8191/v1, and CONFIG_STORE_PATH=/data/runtime-config.json.

• flaresolverr — ghcr.io/flaresolverr/flaresolverr, internal only (not published to the host); its headless browser solves the Cloudflare challenge on a 403.

• redis — redis:7-alpine (password + AOF persistence), internal only; the API's cache.

• config-data / redis-data volumes — persist the solved cf_clearance and the cache across restarts.

Only the API is reached (via the reverse proxy); FlareSolverr + Redis stay internal. For a public-facing setup put a TLS-terminating reverse proxy in front, and set PUBLIC_BASE_URL, API_KEY, and CONFIG_PASSWORD accordingly.

Single image, no solver (refresh clearance manually via /#/config):

docker build -t pddikti .
docker run -p 3000:3000 --env-file .env pddikti

Configuration

All config is read once from the environment via src/config.ts (the only place that touches process.env). Bun auto-loads .env. Key variables:

See .env.example for the full list.

Web UI

• GET / — flat React PT profile explorer: search a university, pick one, and see its profile, stats, cost, study duration, study programs, all lecturers, student search, facilities, and name history. The selected university is carried in the URL hash (#/pt/<id>). Bundled natively by a single Bun.build (JS + Tailwind v4 CSS via bun-plugin-tailwind), no Vite. Client code is organized into components/ (UI + views), hooks/ (use-endpoint, use-selected-pt, use-debounced-value), and lib/ (constants, format, theme). Requires a configured upstream (below) to show live data.

Docs

• Overview: GET /api/

• Swagger UI: /api/docs

• ReDoc: /api/redoc

• OpenAPI spec: /api/openapi.json (live)

• MCP tools: /#/mcp (readable view) · /mcp/tools (JSON catalog — the MCP analogue of the OpenAPI spec)

• Static spec: openapi.json in the repo, for offline agent reference. Regenerate after route changes with bun run openapi:export (set PUBLIC_BASE_URL to stamp the servers URL, e.g. PUBLIC_BASE_URL=https://<host> bun run openapi:export).

MCP (AI agent access)

The same data is exposed to AI agents over the Model Context Protocol. Tools are consolidated and enum-driven (~10): search_pddikti, get_university, get_university_study_programs, get_university_lecturers, get_study_program, get_study_program_lecturers, get_lecturer, get_student, get_statistics, list_study_programs_by_field. Each routes through the same proxy egress, cache, and credit envelope as the REST API.

Two transports:

• stdio — bun run mcp (runs src/mcp/stdio.ts). For local clients.

• Streamable HTTP — POST /mcp on the running server. For remote/hosted clients. Always public (no API key) — even when /api/* is gated by API_KEY — so browser clients like Claude.ai, which can't send a static X-API-Key, can connect.

Claude Code (CLI)

Local (stdio) — from the repo root, env comes from .env:

claude mcp add pddikti -- bun run /abs/path/to/pddikti/src/mcp/stdio.ts

Or commit a project-scoped .mcp.json (already included — fill the env):

{
  "mcpServers": {
    "pddikti": {
      "command": "bun",
      "args": ["run", "./src/mcp/stdio.ts"],
      "env": {
        "UPSTREAM_BASE_URL": "https://pddikti.kemdiktisaintek.go.id/api",
        "CONFIG_STORE_PATH": "/abs/path/to/pddikti/runtime-config.json"
      }
    }
  }
}

Pointing CONFIG_STORE_PATH at the same runtime-config.json the config page writes lets the stdio server reuse that Cloudflare clearance (or set SOLVER_ENABLED/SOLVER_URL to auto-resolve). See Upstream config below.

Remote (HTTP) against a running instance:

claude mcp add --transport http pddikti https://<host>/mcp

Claude Desktop

Edit claude_desktop_config.json (Settings → Developer → Edit Config) — same shape as .mcp.json above under mcpServers. Restart the app; tools appear under the 🔌 menu.

Claude.ai (web)

Settings → Connectors → Add custom connector → URL https://<host>/mcp. The web UI cannot send a static X-API-Key/Basic-auth header, so /mcp is intentionally public (no key) regardless of API_KEY — the web connector works out of the box. Only the /api/* REST surface is key-gated.

Quick test

bun run mcp:inspect    # MCP Inspector against the stdio server

# Or hit the HTTP endpoint directly (initialize handshake):
curl -s https://<host>/mcp -X POST \
  -H 'Content-Type: application/json' \
  -H 'Accept: application/json, text/event-stream' \
  -d '{"jsonrpc":"2.0","id":1,"method":"initialize","params":{"protocolVersion":"2025-06-18","capabilities":{},"clientInfo":{"name":"probe","version":"1"}}}'

Upstream config

This API proxies the official PDDikti backend, which lives at .../api on the main domain and is guarded by Cloudflare bot management. Only the base URL goes in .env:

UPSTREAM_BASE_URL=https://pddikti.kemdiktisaintek.go.id/api

Cloudflare needs a cf_clearance cookie + the exact User-Agent it was issued to (a mismatched/absent UA → 403). You provide these at runtime, not in .env, two ways:

• Manually via the config page — set CONFIG_PASSWORD, open the Konfigurasi view (/#/config, a React page backed by the /config/* JSON API), paste the cf_clearance + User-Agent (or a full DevTools Copy as cURL, auto-parsed). Saved to CONFIG_STORE_PATH, applied live, persists across restarts. Refresh when it expires.

• Automatically via the solver — see Auto-solver below; a 403 self-heals with no manual step.

(An optional UPSTREAM_HEADERS JSON env map is still accepted as a fallback baseline, but is overridden by the runtime config and normally left unset.)

The upstream wraps payloads as {status,data} and returns opaque base64url ids (with = padding, sent raw in the path) — both handled in lib/upstream.ts / lib/encoding.ts.

Without UPSTREAM_BASE_URL, /api/* returns a clean 503 envelope (no data).

Auto-solver (optional, hands-off clearance)

cf_clearance expires, so instead of refreshing it by hand you can let the app do it — server-deployable via FlareSolverr (a headless-browser challenge solver that runs in its own container). Set SOLVER_ENABLED=true + SOLVER_URL (the FlareSolverr /v1 endpoint). On a 403, the proxy calls FlareSolverr to clear the challenge, saves the fresh cf_clearance + User-Agent (to CONFIG_STORE_PATH), and retries the request once. Left off, refresh manually via the /#/config page.

Run both with the provided docker-compose.yml:

docker compose up -d   # starts the API + a flaresolverr sidecar

The browser lives inside FlareSolverr, so this works on a headless server (no display).

Architecture

• Bun + Hono (OpenAPIHono), exported as export default { fetch, port } — no Bun.serve, Vite, or Express.

• Single egress: every upstream call goes through lib/upstream.ts (auth headers, timeout, {status,data} unwrap, error mapping, 403 auto-refresh), with an optional Redis cache (lib/cache.ts). Routes never fetch directly.

• Zod-first: one schema drives both request validation and OpenAPI generation; strict TypeScript, no any (upstream payloads are opaque z.unknown()).

• Two frontends, one core: the REST /api/* routes and the in-process MCP server (/mcp) both call lib/ directly — identical egress, cache, and credit envelope, no second hop.

• Native React SPA: bundled by a single Bun.build (+ Tailwind v4 CSS-first), served by Hono; components/ + hooks/ + lib/ layout, one shared sticky Header.

• Definition of done: bun run typecheck (clean) + bun test (green), no network in tests.

Full conventions live in CLAUDE.md.

Scripts

Project conventions

See CLAUDE.md.

License

MIT — open source, free to use, copy, modify, and distribute.

Disclaimer

For educational and learning purposes only. This is a personal, non-commercial study project.

• Not affiliated with or endorsed by PDDikti, Kemdiktisaintek, or Cloudflare. All upstream data is © PDDikti; names belong to their respective owners.

• Provided "as is", with no warranty of accuracy, availability, or fitness (see the MIT terms).

• No liability for misuse. The authors accept no responsibility for how this software is used or for any damages arising from it — you use it entirely at your own risk.

• Your responsibility. You must comply with all applicable laws and the terms of service of any system it touches (including the upstream's terms and its anti-bot/rate-limit protections). Do not use it to overload, disrupt, mass-scrape, or abuse any service, or to handle personal data unlawfully.

See LICENSE for the full text.