Why do I need yet another MCP server?

You probably already have Notion MCP, Slack MCP, Browser MCP, Playwright MCP, Gmail MCP, and a few hand-rolled site-specific ones. Unbrowse is one MCP that replaces all of them: drop a single line into your mcp.json and your agent gets direct access to any website without a per-site server. New site appears, same MCP server captures it on the first visit; there is no new MCP to install, no new config block, no new auth flow.

How does my agent act on a website without clicking buttons?

Every modern website's UI calls its own internal APIs. When you tap "Reserve" on Airbnb, the page POSTs to /api/v3/reservations with your cookies. Unbrowse captures those same internal APIs on the first visit and lets your agent call them directly with the same cookies. Your agent says its intent in natural language; unbrowse_resolve picks the right captured endpoint, unbrowse_execute calls it. Browser automation tools (click, fill, submit, eval) are also exposed in the MCP surface but only as the cold-start fallback when a new site's APIs have not been captured yet.

How is Unbrowse different from Playwright MCP?

Playwright MCP drives a real browser and streams the full accessibility tree on every call — about 114K tokens per typical task. Microsoft's own Playwright team recommends their CLI over their MCP for that reason. Unbrowse calls the website's internal API instead, returning the answer the agent asked for in roughly 5K tokens. Across 94 live domains the paper measures 3.6x mean (5.4x median) speedup over Playwright on read-shaped tasks.

Does Unbrowse get blocked by Cloudflare Turnstile or Datadome?

Most of the time the agent never hits the WAF because it never loads the page; it calls the JSON endpoint the page would have called. When a fresh-site capture is required, unbrowse_fetch ships with libcurl-impersonate so the TLS handshake matches the JA4 fingerprint of a real Chrome, combined with your own browser cookies, so Turnstile / Datadome / PerimeterX usually never fire. If the bare-browser path is still challenged, residential-proxy fallback is one env var away (UNBROWSE_PROXY_URL).

Does my agent inherit my browser logins, and what happens when a login expires?

Yes, opt-in per domain. Cookies from your real Chrome and Firefox authenticate every shadow-API call; per-domain auth profiles live in your system Keychain. When an endpoint returns a 401, the ranker marks it auth_walled and demotes it the next time you resolve. Three login-hint surfaces (Keychain / browser / agent prompt) tell you exactly where to reauthenticate. Nothing leaves your machine.

The Unbrowse CLI client and SDKs are open source (MIT) and free to install and run locally. You pay only per-use in USDC when your agent executes a route through the shared marketplace — and you can earn USDC for routes you index. The capture engine and backend are proprietary.

How do I install Unbrowse?

Run npx unbrowse setup --mcp and your MCP client (Claude Code, Claude Desktop, Cursor, Windsurf, Codex, OpenClaw) gets wired in one step. For Claude Code: claude mcp add unbrowse -- npx -y unbrowse mcp. For manual setup, add {"unbrowse": {"command": "npx", "args": ["-y", "unbrowse", "mcp"]}} to your mcp.json and restart.

Unbrowse — Turn any website into API skills for AI agents

Name: Unbrowse
Author: Unbrowse

GET /api/v3/StaysSearch?query=Tokyo&checkin=2024-03-15&guests=2&currency=USD     <div class="listing" data-id="TKY-882"><span class="price">$89/night</span><span class="rating">4.92★</span>     X-Request-ID: 3f2a8b91  ·  X-RateLimit-Remaining: 998  ·  Cache-Control: public, max-age=60
{"listings":[{"id":"TKY-882","price":89,"rating":4.92,"title":"Shibuya Loft with City View"}     Content-Type: application/json  ·  200 OK  ·  0.4s  ·  1.2KB  ·  cache: hit     response.listings.map(l => `${l.title}: $${l.price}/night — ${l.rating}★`).join("\n")
<!DOCTYPE html><html><head><meta charset="utf-8"><title>TravelBooker</title><link rel="stylesheet"     POST /api/v3/StayCheckout {"listing_id":"TKY-882","dates":{"checkin":"2024-03-15","checkout":"2024-03-22"}}     GET /api/v3/PdpAvailabilityCalendar?id=TKY-882&month=2024-03  →  {"available":true,"price_override":null}
Authorization: Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiJ1c2VyXzEyMzQ1In0     skill: airbnb-stays-api  ·  quality: 91/100  ·  endpoints: 12  ·  indexed: public registry     unbrowse.skill("airbnb-stays-api").call("search", { location: "Tokyo", dates: "Mar 15-22" })
unbrowse.resolve({ url: "airbnb.com", intent: "find Tokyo stays for 2 guests, March 15-22" })     import { unbrowse } from "unbrowse"  // 100x faster than headless browsers, 40x fewer tokens     var _0x3f2a=function(_0x2b1c){return _0x2b1c.split("").reverse()};window.__CF={};(function(){
<div class="listing" data-id="TKY-882"><span class="price">$89/night</span><span class="rating">4.92★</span>     X-Request-ID: 3f2a8b91  ·  X-RateLimit-Remaining: 998  ·  Cache-Control: public, max-age=60     GET /api/v3/StaysSearch?query=Tokyo&checkin=2024-03-15&guests=2&currency=USD
Content-Type: application/json  ·  200 OK  ·  0.4s  ·  1.2KB  ·  cache: hit     response.listings.map(l => `${l.title}: $${l.price}/night — ${l.rating}★`).join("\n")     {"listings":[{"id":"TKY-882","price":89,"rating":4.92,"title":"Shibuya Loft with City View"}
POST /api/v3/StayCheckout {"listing_id":"TKY-882","dates":{"checkin":"2024-03-15","checkout":"2024-03-22"}}     GET /api/v3/PdpAvailabilityCalendar?id=TKY-882&month=2024-03  →  {"available":true,"price_override":null}     <!DOCTYPE html><html><head><meta charset="utf-8"><title>TravelBooker</title><link rel="stylesheet"
skill: airbnb-stays-api  ·  quality: 91/100  ·  endpoints: 12  ·  indexed: public registry     unbrowse.skill("airbnb-stays-api").call("search", { location: "Tokyo", dates: "Mar 15-22" })     Authorization: Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiJ1c2VyXzEyMzQ1In0
import { unbrowse } from "unbrowse"  // 100x faster than headless browsers, 40x fewer tokens     var _0x3f2a=function(_0x2b1c){return _0x2b1c.split("").reverse()};window.__CF={};(function(){     unbrowse.resolve({ url: "airbnb.com", intent: "find Tokyo stays for 2 guests, March 15-22" })
X-Request-ID: 3f2a8b91  ·  X-RateLimit-Remaining: 998  ·  Cache-Control: public, max-age=60     GET /api/v3/StaysSearch?query=Tokyo&checkin=2024-03-15&guests=2&currency=USD     <div class="listing" data-id="TKY-882"><span class="price">$89/night</span><span class="rating">4.92★</span>
response.listings.map(l => `${l.title}: $${l.price}/night — ${l.rating}★`).join("\n")     {"listings":[{"id":"TKY-882","price":89,"rating":4.92,"title":"Shibuya Loft with City View"}     Content-Type: application/json  ·  200 OK  ·  0.4s  ·  1.2KB  ·  cache: hit
GET /api/v3/PdpAvailabilityCalendar?id=TKY-882&month=2024-03  →  {"available":true,"price_override":null}     <!DOCTYPE html><html><head><meta charset="utf-8"><title>TravelBooker</title><link rel="stylesheet"     POST /api/v3/StayCheckout {"listing_id":"TKY-882","dates":{"checkin":"2024-03-15","checkout":"2024-03-22"}}
unbrowse.skill("airbnb-stays-api").call("search", { location: "Tokyo", dates: "Mar 15-22" })     Authorization: Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiJ1c2VyXzEyMzQ1In0     skill: airbnb-stays-api  ·  quality: 91/100  ·  endpoints: 12  ·  indexed: public registry
var _0x3f2a=function(_0x2b1c){return _0x2b1c.split("").reverse()};window.__CF={};(function(){     unbrowse.resolve({ url: "airbnb.com", intent: "find Tokyo stays for 2 guests, March 15-22" })     import { unbrowse } from "unbrowse"  // 100x faster than headless browsers, 40x fewer tokens
GET /api/v3/StaysSearch?query=Tokyo&checkin=2024-03-15&guests=2&currency=USD     <div class="listing" data-id="TKY-882"><span class="price">$89/night</span><span class="rating">4.92★</span>     X-Request-ID: 3f2a8b91  ·  X-RateLimit-Remaining: 998  ·  Cache-Control: public, max-age=60
{"listings":[{"id":"TKY-882","price":89,"rating":4.92,"title":"Shibuya Loft with City View"}     Content-Type: application/json  ·  200 OK  ·  0.4s  ·  1.2KB  ·  cache: hit     response.listings.map(l => `${l.title}: $${l.price}/night — ${l.rating}★`).join("\n")
<!DOCTYPE html><html><head><meta charset="utf-8"><title>TravelBooker</title><link rel="stylesheet"     POST /api/v3/StayCheckout {"listing_id":"TKY-882","dates":{"checkin":"2024-03-15","checkout":"2024-03-22"}}     GET /api/v3/PdpAvailabilityCalendar?id=TKY-882&month=2024-03  →  {"available":true,"price_override":null}
Authorization: Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiJ1c2VyXzEyMzQ1In0     skill: airbnb-stays-api  ·  quality: 91/100  ·  endpoints: 12  ·  indexed: public registry     unbrowse.skill("airbnb-stays-api").call("search", { location: "Tokyo", dates: "Mar 15-22" })
unbrowse.resolve({ url: "airbnb.com", intent: "find Tokyo stays for 2 guests, March 15-22" })     import { unbrowse } from "unbrowse"  // 100x faster than headless browsers, 40x fewer tokens     var _0x3f2a=function(_0x2b1c){return _0x2b1c.split("").reverse()};window.__CF={};(function(){
<div class="listing" data-id="TKY-882"><span class="price">$89/night</span><span class="rating">4.92★</span>     X-Request-ID: 3f2a8b91  ·  X-RateLimit-Remaining: 998  ·  Cache-Control: public, max-age=60     GET /api/v3/StaysSearch?query=Tokyo&checkin=2024-03-15&guests=2&currency=USD
Content-Type: application/json  ·  200 OK  ·  0.4s  ·  1.2KB  ·  cache: hit     response.listings.map(l => `${l.title}: $${l.price}/night — ${l.rating}★`).join("\n")     {"listings":[{"id":"TKY-882","price":89,"rating":4.92,"title":"Shibuya Loft with City View"}
POST /api/v3/StayCheckout {"listing_id":"TKY-882","dates":{"checkin":"2024-03-15","checkout":"2024-03-22"}}     GET /api/v3/PdpAvailabilityCalendar?id=TKY-882&month=2024-03  →  {"available":true,"price_override":null}     <!DOCTYPE html><html><head><meta charset="utf-8"><title>TravelBooker</title><link rel="stylesheet"
skill: airbnb-stays-api  ·  quality: 91/100  ·  endpoints: 12  ·  indexed: public registry     unbrowse.skill("airbnb-stays-api").call("search", { location: "Tokyo", dates: "Mar 15-22" })     Authorization: Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiJ1c2VyXzEyMzQ1In0
import { unbrowse } from "unbrowse"  // 100x faster than headless browsers, 40x fewer tokens     var _0x3f2a=function(_0x2b1c){return _0x2b1c.split("").reverse()};window.__CF={};(function(){     unbrowse.resolve({ url: "airbnb.com", intent: "find Tokyo stays for 2 guests, March 15-22" })
X-Request-ID: 3f2a8b91  ·  X-RateLimit-Remaining: 998  ·  Cache-Control: public, max-age=60     GET /api/v3/StaysSearch?query=Tokyo&checkin=2024-03-15&guests=2&currency=USD     <div class="listing" data-id="TKY-882"><span class="price">$89/night</span><span class="rating">4.92★</span>
response.listings.map(l => `${l.title}: $${l.price}/night — ${l.rating}★`).join("\n")     {"listings":[{"id":"TKY-882","price":89,"rating":4.92,"title":"Shibuya Loft with City View"}     Content-Type: application/json  ·  200 OK  ·  0.4s  ·  1.2KB  ·  cache: hit
GET /api/v3/PdpAvailabilityCalendar?id=TKY-882&month=2024-03  →  {"available":true,"price_override":null}     <!DOCTYPE html><html><head><meta charset="utf-8"><title>TravelBooker</title><link rel="stylesheet"     POST /api/v3/StayCheckout {"listing_id":"TKY-882","dates":{"checkin":"2024-03-15","checkout":"2024-03-22"}}
unbrowse.skill("airbnb-stays-api").call("search", { location: "Tokyo", dates: "Mar 15-22" })     Authorization: Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiJ1c2VyXzEyMzQ1In0     skill: airbnb-stays-api  ·  quality: 91/100  ·  endpoints: 12  ·  indexed: public registry
var _0x3f2a=function(_0x2b1c){return _0x2b1c.split("").reverse()};window.__CF={};(function(){     unbrowse.resolve({ url: "airbnb.com", intent: "find Tokyo stays for 2 guests, March 15-22" })     import { unbrowse } from "unbrowse"  // 100x faster than headless browsers, 40x fewer tokens
GET /api/v3/StaysSearch?query=Tokyo&checkin=2024-03-15&guests=2&currency=USD     <div class="listing" data-id="TKY-882"><span class="price">$89/night</span><span class="rating">4.92★</span>     X-Request-ID: 3f2a8b91  ·  X-RateLimit-Remaining: 998  ·  Cache-Control: public, max-age=60
{"listings":[{"id":"TKY-882","price":89,"rating":4.92,"title":"Shibuya Loft with City View"}     Content-Type: application/json  ·  200 OK  ·  0.4s  ·  1.2KB  ·  cache: hit     response.listings.map(l => `${l.title}: $${l.price}/night — ${l.rating}★`).join("\n")
<!DOCTYPE html><html><head><meta charset="utf-8"><title>TravelBooker</title><link rel="stylesheet"     POST /api/v3/StayCheckout {"listing_id":"TKY-882","dates":{"checkin":"2024-03-15","checkout":"2024-03-22"}}     GET /api/v3/PdpAvailabilityCalendar?id=TKY-882&month=2024-03  →  {"available":true,"price_override":null}
Authorization: Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiJ1c2VyXzEyMzQ1In0     skill: airbnb-stays-api  ·  quality: 91/100  ·  endpoints: 12  ·  indexed: public registry     unbrowse.skill("airbnb-stays-api").call("search", { location: "Tokyo", dates: "Mar 15-22" })
unbrowse.resolve({ url: "airbnb.com", intent: "find Tokyo stays for 2 guests, March 15-22" })     import { unbrowse } from "unbrowse"  // 100x faster than headless browsers, 40x fewer tokens     var _0x3f2a=function(_0x2b1c){return _0x2b1c.split("").reverse()};window.__CF={};(function(){
<div class="listing" data-id="TKY-882"><span class="price">$89/night</span><span class="rating">4.92★</span>     X-Request-ID: 3f2a8b91  ·  X-RateLimit-Remaining: 998  ·  Cache-Control: public, max-age=60     GET /api/v3/StaysSearch?query=Tokyo&checkin=2024-03-15&guests=2&currency=USD
Content-Type: application/json  ·  200 OK  ·  0.4s  ·  1.2KB  ·  cache: hit     response.listings.map(l => `${l.title}: $${l.price}/night — ${l.rating}★`).join("\n")     {"listings":[{"id":"TKY-882","price":89,"rating":4.92,"title":"Shibuya Loft with City View"}
POST /api/v3/StayCheckout {"listing_id":"TKY-882","dates":{"checkin":"2024-03-15","checkout":"2024-03-22"}}     GET /api/v3/PdpAvailabilityCalendar?id=TKY-882&month=2024-03  →  {"available":true,"price_override":null}     <!DOCTYPE html><html><head><meta charset="utf-8"><title>TravelBooker</title><link rel="stylesheet"
skill: airbnb-stays-api  ·  quality: 91/100  ·  endpoints: 12  ·  indexed: public registry     unbrowse.skill("airbnb-stays-api").call("search", { location: "Tokyo", dates: "Mar 15-22" })     Authorization: Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiJ1c2VyXzEyMzQ1In0
import { unbrowse } from "unbrowse"  // 100x faster than headless browsers, 40x fewer tokens     var _0x3f2a=function(_0x2b1c){return _0x2b1c.split("").reverse()};window.__CF={};(function(){     unbrowse.resolve({ url: "airbnb.com", intent: "find Tokyo stays for 2 guests, March 15-22" })
X-Request-ID: 3f2a8b91  ·  X-RateLimit-Remaining: 998  ·  Cache-Control: public, max-age=60     GET /api/v3/StaysSearch?query=Tokyo&checkin=2024-03-15&guests=2&currency=USD     <div class="listing" data-id="TKY-882"><span class="price">$89/night</span><span class="rating">4.92★</span>
response.listings.map(l => `${l.title}: $${l.price}/night — ${l.rating}★`).join("\n")     {"listings":[{"id":"TKY-882","price":89,"rating":4.92,"title":"Shibuya Loft with City View"}     Content-Type: application/json  ·  200 OK  ·  0.4s  ·  1.2KB  ·  cache: hit
GET /api/v3/PdpAvailabilityCalendar?id=TKY-882&month=2024-03  →  {"available":true,"price_override":null}     <!DOCTYPE html><html><head><meta charset="utf-8"><title>TravelBooker</title><link rel="stylesheet"     POST /api/v3/StayCheckout {"listing_id":"TKY-882","dates":{"checkin":"2024-03-15","checkout":"2024-03-22"}}
unbrowse.skill("airbnb-stays-api").call("search", { location: "Tokyo", dates: "Mar 15-22" })     Authorization: Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiJ1c2VyXzEyMzQ1In0     skill: airbnb-stays-api  ·  quality: 91/100  ·  endpoints: 12  ·  indexed: public registry
var _0x3f2a=function(_0x2b1c){return _0x2b1c.split("").reverse()};window.__CF={};(function(){     unbrowse.resolve({ url: "airbnb.com", intent: "find Tokyo stays for 2 guests, March 15-22" })     import { unbrowse } from "unbrowse"  // 100x faster than headless browsers, 40x fewer tokens
GET /api/v3/StaysSearch?query=Tokyo&checkin=2024-03-15&guests=2&currency=USD     <div class="listing" data-id="TKY-882"><span class="price">$89/night</span><span class="rating">4.92★</span>     X-Request-ID: 3f2a8b91  ·  X-RateLimit-Remaining: 998  ·  Cache-Control: public, max-age=60
{"listings":[{"id":"TKY-882","price":89,"rating":4.92,"title":"Shibuya Loft with City View"}     Content-Type: application/json  ·  200 OK  ·  0.4s  ·  1.2KB  ·  cache: hit     response.listings.map(l => `${l.title}: $${l.price}/night — ${l.rating}★`).join("\n")
<!DOCTYPE html><html><head><meta charset="utf-8"><title>TravelBooker</title><link rel="stylesheet"     POST /api/v3/StayCheckout {"listing_id":"TKY-882","dates":{"checkin":"2024-03-15","checkout":"2024-03-22"}}     GET /api/v3/PdpAvailabilityCalendar?id=TKY-882&month=2024-03  →  {"available":true,"price_override":null}
Authorization: Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiJ1c2VyXzEyMzQ1In0     skill: airbnb-stays-api  ·  quality: 91/100  ·  endpoints: 12  ·  indexed: public registry     unbrowse.skill("airbnb-stays-api").call("search", { location: "Tokyo", dates: "Mar 15-22" })
unbrowse.resolve({ url: "airbnb.com", intent: "find Tokyo stays for 2 guests, March 15-22" })     import { unbrowse } from "unbrowse"  // 100x faster than headless browsers, 40x fewer tokens     var _0x3f2a=function(_0x2b1c){return _0x2b1c.split("").reverse()};window.__CF={};(function(){
<div class="listing" data-id="TKY-882"><span class="price">$89/night</span><span class="rating">4.92★</span>     X-Request-ID: 3f2a8b91  ·  X-RateLimit-Remaining: 998  ·  Cache-Control: public, max-age=60     GET /api/v3/StaysSearch?query=Tokyo&checkin=2024-03-15&guests=2&currency=USD
Content-Type: application/json  ·  200 OK  ·  0.4s  ·  1.2KB  ·  cache: hit     response.listings.map(l => `${l.title}: $${l.price}/night — ${l.rating}★`).join("\n")     {"listings":[{"id":"TKY-882","price":89,"rating":4.92,"title":"Shibuya Loft with City View"}
POST /api/v3/StayCheckout {"listing_id":"TKY-882","dates":{"checkin":"2024-03-15","checkout":"2024-03-22"}}     GET /api/v3/PdpAvailabilityCalendar?id=TKY-882&month=2024-03  →  {"available":true,"price_override":null}     <!DOCTYPE html><html><head><meta charset="utf-8"><title>TravelBooker</title><link rel="stylesheet"
skill: airbnb-stays-api  ·  quality: 91/100  ·  endpoints: 12  ·  indexed: public registry     unbrowse.skill("airbnb-stays-api").call("search", { location: "Tokyo", dates: "Mar 15-22" })     Authorization: Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiJ1c2VyXzEyMzQ1In0
import { unbrowse } from "unbrowse"  // 100x faster than headless browsers, 40x fewer tokens     var _0x3f2a=function(_0x2b1c){return _0x2b1c.split("").reverse()};window.__CF={};(function(){     unbrowse.resolve({ url: "airbnb.com", intent: "find Tokyo stays for 2 guests, March 15-22" })
X-Request-ID: 3f2a8b91  ·  X-RateLimit-Remaining: 998  ·  Cache-Control: public, max-age=60     GET /api/v3/StaysSearch?query=Tokyo&checkin=2024-03-15&guests=2&currency=USD     <div class="listing" data-id="TKY-882"><span class="price">$89/night</span><span class="rating">4.92★</span>
response.listings.map(l => `${l.title}: $${l.price}/night — ${l.rating}★`).join("\n")     {"listings":[{"id":"TKY-882","price":89,"rating":4.92,"title":"Shibuya Loft with City View"}     Content-Type: application/json  ·  200 OK  ·  0.4s  ·  1.2KB  ·  cache: hit
GET /api/v3/PdpAvailabilityCalendar?id=TKY-882&month=2024-03  →  {"available":true,"price_override":null}     <!DOCTYPE html><html><head><meta charset="utf-8"><title>TravelBooker</title><link rel="stylesheet"     POST /api/v3/StayCheckout {"listing_id":"TKY-882","dates":{"checkin":"2024-03-15","checkout":"2024-03-22"}}
unbrowse.skill("airbnb-stays-api").call("search", { location: "Tokyo", dates: "Mar 15-22" })     Authorization: Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiJ1c2VyXzEyMzQ1In0     skill: airbnb-stays-api  ·  quality: 91/100  ·  endpoints: 12  ·  indexed: public registry
var _0x3f2a=function(_0x2b1c){return _0x2b1c.split("").reverse()};window.__CF={};(function(){     unbrowse.resolve({ url: "airbnb.com", intent: "find Tokyo stays for 2 guests, March 15-22" })     import { unbrowse } from "unbrowse"  // 100x faster than headless browsers, 40x fewer tokens
GET /api/v3/StaysSearch?query=Tokyo&checkin=2024-03-15&guests=2&currency=USD     <div class="listing" data-id="TKY-882"><span class="price">$89/night</span><span class="rating">4.92★</span>     X-Request-ID: 3f2a8b91  ·  X-RateLimit-Remaining: 998  ·  Cache-Control: public, max-age=60
{"listings":[{"id":"TKY-882","price":89,"rating":4.92,"title":"Shibuya Loft with City View"}     Content-Type: application/json  ·  200 OK  ·  0.4s  ·  1.2KB  ·  cache: hit     response.listings.map(l => `${l.title}: $${l.price}/night — ${l.rating}★`).join("\n")
<!DOCTYPE html><html><head><meta charset="utf-8"><title>TravelBooker</title><link rel="stylesheet"     POST /api/v3/StayCheckout {"listing_id":"TKY-882","dates":{"checkin":"2024-03-15","checkout":"2024-03-22"}}     GET /api/v3/PdpAvailabilityCalendar?id=TKY-882&month=2024-03  →  {"available":true,"price_override":null}
Authorization: Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiJ1c2VyXzEyMzQ1In0     skill: airbnb-stays-api  ·  quality: 91/100  ·  endpoints: 12  ·  indexed: public registry     unbrowse.skill("airbnb-stays-api").call("search", { location: "Tokyo", dates: "Mar 15-22" })
unbrowse.resolve({ url: "airbnb.com", intent: "find Tokyo stays for 2 guests, March 15-22" })     import { unbrowse } from "unbrowse"  // 100x faster than headless browsers, 40x fewer tokens     var _0x3f2a=function(_0x2b1c){return _0x2b1c.split("").reverse()};window.__CF={};(function(){

01The shadow API

Every site already runs an API. Your agent should call it.

When you tap Reserve, the page POSTs to /api/v3/reservations with your cookies. Unbrowse captures the same endpoints on the first visit and lets your agent call them directly — in roughly 5K tokens instead of Playwright’s ~114K.

## what fires on resolve

Each path is one rung of the resolve ladder. Click a lane to re-fire its dot — the picture shows which rung carries the latency for the intent your agent just resolved. Numbers from CLAUDE.md resolve pipeline; not fabricated.

Capture on first visit

HAR + JS interceptor record every fetch and XHR the page fires. Cookies from your real Chrome authenticate every call.

Replay on every call after

resolve picks the right endpoint for the intent; execute returns the JSON answer your agent asked for.

02Install

One line into your MCP host. Any agent.

Plugs into Claude Code, Claude Desktop, Cursor, Codex, Windsurf, and OpenClaw. Replaces the per-site MCP stack you’ve been assembling by hand.

$ unbrowse setup --mcp

unbrowse mcp

○ anonymous install — the cli will prompt for an email on first runsign in to bake your api key into the install →

03The numbers

3.6× mean. 5.4× median. 18 of 94 sub-100ms.

Across 94 live domains the paper measures 3.6× mean and 5.4× median speed-up over Playwright on read-shaped tasks — roughly 5K response tokens against Playwright’s ~114K. Eighteen of those ninety-four sites resolve in under 100ms on a warm cache.

domains in registry

agent calls

shadow endpoints

04Earn while you browse

Index a route. Get paid every time another agent reuses it.

Capture and indexing are free. When another agent reuses your route, you get paid in USDC — settled on Solana via Faremeter Flex, directly to your wallet. The sponsor tier covers an agent’s first $1/day.

## For the supply side

The next agent on your route pays you.

Capture and indexing are free. Use unbrowse normally; every route you cache lands in the public marketplace. When another agent reuses your route, you get paid in USDC — settled on Solana via Faremeter Flex, directly to your wallet. No API key billing, no Stripe dashboard.

The sponsor tier covers an agent's first $1/day, so they explore your routes before they spend their own wallet. Discovery is the marketplace's job, not yours.

[ Start earning ]How payouts work

$ Set up Crossmint lobster.cash during npx unbrowse setup to wire the payout address.

Receipt strip

Privy wallet flow, settled in USDC on Solana via Faremeter Flex.

Capture + indexing are free. You earn when another agent reuses your cached route.

Sponsor tier covers $1/day per agent and $50/day per platform; past that, agents fall through to their own wallet.

Payout to bank via Crossmint lobster.cash, set up in one step.

Every settled route is a real route, a real wallet, real USDC — paid the moment another agent reuses it.

Asked for repeatedly on r/AI_Agents, r/SaaS, r/CryptoCurrency, r/ethdev. Trace in /docs/POSITIONING.md.

05Marketplace

600+ domains already cached. Your agent skips the browser.

Every agent indexes; every agent benefits. The marketplace is the shared layer. New domains land every day.

06Answers

The eight questions every agent builder asks.

MCP overload, browser blocks, login expiry, the earnings flow, licence, install. Everything you’d ask before wiring this into your stack.

## Asked on Reddit

Real objections. Real answers.

Eight objections lifted verbatim from threads in the corpus. Every answer cites the Reddit thread it came from.

We need traces and selectors for CI.

Keep Playwright for CI. unbrowse is for runtime agents, not the test harness.

cite: implied vs Playwright MCP (t3_1spvkrz)

Charlotte / Browser DevTools MCP exist on the same efficiency frame.

Same efficiency frame. unbrowse adds a shared route cache via marketplace, auth inheritance from your real Chrome, and a sponsor tier for first-time-agent discovery.

cite: t3_1rhjxet, t3_1rrta8f

Residential proxies are sketchy.

Used only as fallback, only when the bare browser is challenged, only on networks you can audit. The default path is your real Chrome with your real cookies.

cite: t3_1o1zlt0, t3_1qzbk1v

How does it find the right API on a new site?

Capture during the first browse, rank against the agent's intent, cache. The shared marketplace means the second agent on the same site usually skips the browse entirely.

cite: t3_1rz29ac, t3_1sx45zv

Crypto is sketchy.

USDC on Solana via Faremeter Flex. Settlement is gas-light and instant; Crossmint lobster.cash routes payouts straight to a bank account. You never touch the chain unless you want to.

cite: t3_1pe54l3, t3_1s3ozz0

How do agents find my route after I publish?

Resolve queries the marketplace during route selection. First-mover routes on a domain get a sponsor-tier boost so they show up before competitors. Marketplace is open at /search.

cite: t3_1p63m3b, t3_1pgebeh, t3_1s16g2b

Codex / Grok refuse to fetch URLs.

Right. unbrowse is the web tool, the coding agent stays in its lane. There is no "against the rules" on a public URL when the web-fetch is a separate MCP call.

cite: t3_1pqsqbz

I want first-party SDKs for the services I care about.

Keep them. Use unbrowse for the long tail and for sites that have no MCP. The universal MCP is for the 80% of sites no one will write a first-party MCP for.

cite: t3_1rz29ac, t3_1sumut0

## Who unbrowse is not for

Three jobs we do not optimize for.

UI regression CI suites with selectors and tracesKeep Playwright proper

Canvas-heavy apps that need imperative JS in-pageUse an agent framework

End-user chat interfacesUse Claude / ChatGPT

If you need any of those, unbrowse is the wrong tool. We optimize for one job: an agent calling an API behind a website, without the browser tax.

Unbrowse: direct access to anything on the web, without setting up another MCP

The API layer for AI agents.