Portal v0.1.0 — first public release

Portal is an open HTTP standard that lets any LLM client visit a service's tools without pre-configuration. Two endpoints, one manifest, fire-and-forget. A complement to MCP, not a replacement: MCP = installed tools, Portal = drive-by visits.

What ships in v0.1.0

• Spec — docs/spec-v0.1.0.md, public domain (CC0). One page of core + three appendices.
• Conformance — 30 vectors + ajv + lean dual-validator with CI-enforced parity
• TypeScript SDK — @visitportal/visit, 2.25 kB gzipped, 14 tests
• CLI — visit-portal info | call | conformance
• Reference provider — reference/star-screener (Hono, 30 repos, 12 maintainers)
• Benchmark — 48-cell real count_tokens matrix
• Web — Next.js site with /, /docs, /bench, /directory

Measured numbers

Tool count	MCP input tokens	Portal	Ratio
10	1,956	172	11.4×
100	13,929	172	81.0×
400	54,677	172	317.9×

All numbers from Anthropic's count_tokens API, seed 42, Sonnet 4.5 + Opus 4.5. Full matrix: packages/bench/results/tokens-matrix-v1.json. Reproduce with BENCH_MODE=count_tokens_only pnpm --filter @visitportal/bench bench.

Live URLs

• Web: https://web-ten-neon-86.vercel.app/
• Demo Portal: https://starscreener.vercel.app/portal
• Install: curl -fsSL https://web-ten-neon-86.vercel.app/install | sh

Try it

pnpm install
bash scripts/demo.sh                           # 7s end-to-end
pnpm conformance https://starscreener.vercel.app/portal

Status

Phase	Status
0 scaffold / 1 spec / 2 reference / 3 SDK / 5 bench / 6 demo / T1 one-pager / T2 Next.js / 6b interactive	shipped
Python SDK / MCP adapter	stretch, v0.2

See docs/ADOPTER-DEBRIEF.md for full session context.

License

Dual: Apache 2.0 for code, CC0 1.0 for the spec.

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Built with Opus 4.7 for the Claude Code hackathon · April 2026