@agishub/mcp

AgisHub

Pay-per-call tools for AI agents — no signup, no API keys, just USDC.

▶ Try any tool live in your browser — no install

Live data & utilities over x402 micropayments on Base. Your agent pays a few tenths of a cent per call from its own wallet; no accounts, no monthly plans.

Website · Live API · OpenAPI

Why AgisHub

Traditional APIs make an agent stop and ask a human: sign up, create an account, copy an API key, add a credit card, read the docs. AgisHub tools are callable the moment an agent has a funded wallet — the server answers HTTP 402, the agent signs a USDC payment on Base, and the data flows back. Under a second, no human in the loop.

	Raw API + key + plan	Single‑vendor MCP	AgisHub
Sign‑up / API key	required	required	none
Billing	monthly / credits	subscription	per call (USDC)
Agent can pay itself	✗	✗	✓ (x402)
Free tier for discovery	varies	varies	✓ (most of MCP)
Multiple tools, one door	✗	one vendor	✓

MCP tier to discover and prototype, most of it free; pay‑per‑call x402 HTTP tier for production, priced per request in USDC.

Two doors, one platform

• MCP — remote Model Context Protocol server. Point Claude / Cursor / any MCP client at the URL and the tools appear. Most run for free. The ones that need a real browser or a model answer instead with the exact paid call to make: running those costs money on every request, and the server already takes thousands of automated MCP calls a month. The table below marks each one.
• HTTP x402 (paid) — POST /v1/<tool>; unpaid requests get a 402 challenge, the client signs a USDC payment (EIP‑3009 on Base) and retries. USDC contract 0x8335…2913. The same fields also work in the query string: GET /v1/<tool>?field=value, same price, with objects and lists serialised as JSON. Without any parameter a GET describes the endpoint instead of charging.

MCP:          https://api.agishub.com/mcp          (also /mcp/web, /mcp/timezone)
HTTP (paid):  POST https://api.agishub.com/v1/<tool>
              GET  https://api.agishub.com/v1/<tool>?field=value
Discovery:    https://api.agishub.com/openapi.json

Tools

34 paid tools across 7 categories, plus 2 that are always free. Prices are per call in USDC on Base, from $0.01.

The MCP tool column is the name to call over MCP — not always the path — and what you get there: free runs it in full; free, reduced runs but gives less than the paid call (no browser, so a JavaScript-heavy page shows less — and some answers are length-capped); paid only answers with the exact paid call to make instead of running; — means there is no MCP tool at all.

🤖 AI & Inference

Language models, embeddings and classification — no external API key.

MCP tool	What it does	Paid endpoint	Cost
chat · free	Ask a general-purpose LLM a question or give it an instruction, with an optional system prompt.	/v1/chat	$0.02
classify · free	Classify a text into exactly one of the candidate labels you provide (e.g. sentiment, topic, intent).	/v1/classify	$0.02
embed · free	Turn text into a numeric embedding vector for semantic search, RAG and similarity.	/v1/embed	$0.01
extract_entities · free, reduced	Extract named entities from text — people, organizations, locations, dates and miscellaneous — returned as structured JSON.	/v1/extract	$0.02
summarize · free	Summarize a block of text into a short abstract, with an optional target length.	/v1/summarize	$0.02

🕸️ Search & Web

Read, scrape, crawl and map any public page.

MCP tool	What it does	Paid endpoint	Cost
browser · paid only	Drive a headless browser: open a URL and run an ordered list of steps — click, type, press keys, wait, extract text and screenshot.	/v1/browser-automate	$0.10
crawl · paid only	Crawl multiple pages of a site, respecting link depth and domain limits.	/v1/crawl	$0.10
crawl_status · free	Check the status of a crawl started with crawl, and retrieve its pages once finished.	GET /v1/crawl/{job_id}	free
extract · free, reduced	Fetch any public web page and return its main content as clean, token-efficient Markdown (title, description, headings, links, lists).	/v1/web-scraper	$0.03
extract_structured · paid only	AI-powered structured extraction: give a URL plus a natural-language prompt and/or a JSON Schema, and get back clean structured JSON (e.g. product …	/v1/extract-structured	$0.05
links · free, reduced	Return every hyperlink on a JavaScript-rendered page as a list of absolute URLs, with options to keep only visible links or only same-site links.	/v1/links	$0.03
map · paid only	Discover all URLs reachable from a domain within a link depth limit.	/v1/crawl-map	$0.05
scrape · free, reduced	Extract specific elements from a JavaScript-rendered page by CSS selector.	/v1/scrape	$0.03
screenshot · paid only	Capture a PNG screenshot of any public URL — full page or just the viewport, at a chosen size — returned base64-encoded.	/v1/screenshot	$0.03
snapshot · paid only	Capture several representations of a page in one call — rendered HTML plus a PNG screenshot by default, and optionally Markdown and the accessibili…	/v1/snapshot	$0.05

📊 Data & Analytics

Time, timezones, units and currency.

MCP tool	What it does	Paid endpoint	Cost
calculate · free	Timezone-aware date arithmetic: add or subtract a duration to a datetime (days are calendar-based and DST-safe; hours and minutes are absolute), or…	/v1/date-calculate	$0.01
convert · free	Convert a specific date/time from one IANA timezone to another (single or batch).	/v1/time-convert	$0.01
convert_units · free	Convert a value between units of the same category: length, mass, volume, speed, area, digital storage, time, and temperature (Celsius/Fahrenheit/K…	/v1/units-convert	$0.01
currency_convert · free	Convert an amount between currencies using live daily exchange rates (ISO 4217 codes, e.g. USD, EUR, GBP, JPY).	/v1/currency-convert	$0.01
holiday · free	Check whether a given date is a public holiday in a country (identified by its ISO 3166-1 alpha-2 code), and return the holiday name if so.	/v1/time-holiday	$0.01
meeting_slots · free	Find working-hour time slots that overlap across participants in different timezones for a meeting of a given duration, excluding weekends and (whe…	/v1/meeting-slots	$0.10
now · free	Get the current local time in an IANA timezone, including the UTC offset, zone abbreviation and whether DST is in effect.	/v1/time-now	$0.01
offset · free	Get the exact UTC offset of an IANA timezone at a given instant, DST-aware.	/v1/time-offset	$0.01
timezones · free	List or search valid IANA timezone identifiers by city/region/country, and resolve a city/country name to its timezone(s).	/v1/timezones	$0.01

💱 Market Data

Live crypto prices.

MCP tool	What it does	Paid endpoint	Cost
crypto_price · free	Get live USD spot prices for one or more cryptocurrencies by ticker symbol (e.g. BTC, ETH, SOL).	/v1/crypto-price	$0.01

🖼️ Media & Generation

Audio, images and documents.

MCP tool	What it does	Paid endpoint	Cost
—	Convert text into spoken audio (returned base64-encoded MP3), in several languages.	/v1/audio-speak	$0.05
—	Generate an image from a text prompt (returned base64-encoded PNG).	/v1/generate-image	$0.10
pdf · paid only	Render a public URL or a raw HTML string into a PDF document, returned base64-encoded.	/v1/pdf	$0.05
transcribe · free	Transcribe an audio file (given by public URL) to text.	/v1/audio-transcribe	$0.05

🔧 Developer Tools

QR codes, short links and guaranteed webhook delivery.

MCP tool	What it does	Paid endpoint	Cost
generate · free	Generate a QR code for any text or URL.	/v1/qr-generate	$0.01
request_feature · free	Ask for a new service, report a bug or send feedback. It opens a thread we actually read.	—	free
send · free	Deliver a webhook (POST/PUT/PATCH a JSON payload to a URL) with guaranteed, retried delivery.	/v1/webhook-send	$0.02
shorten · free	Shorten a long URL into a compact api.agishub.com/s/ link that redirects to the original.	/v1/shorten	$0.01
status · free	Check the delivery status of a webhook job (queued / retrying / delivered / failed) by its job_id.	/v1/webhook-status	$0.01

🧠 Knowledge & Memory

Persistent, semantically searchable memory.

MCP tool	What it does	Paid endpoint	Cost
search · free	Semantically search a memory collection (namespace) and return the most relevant stored entries.	/v1/memory-search	$0.01
store · free	Store a piece of text in a persistent, searchable memory collection (namespace).	/v1/memory-store	$0.01

Quick start

Use the MCP tools (Claude Code example):

claude mcp add --transport http agishub https://api.agishub.com/mcp

Or point it at one focused server instead of the whole hub: https://api.agishub.com/mcp/web (scraping and crawling) · https://api.agishub.com/mcp/timezone (time, dates, scheduling).

Pay per call over HTTP x402 (any x402 client / wallet):

# Unpaid → 402 challenge; an x402-aware client signs & retries automatically.
curl -X POST https://api.agishub.com/v1/web-scraper \
  -H 'content-type: application/json' \
  -d '{"url":"https://example.com","render":true}'

# Same operation and same price with the fields in the query string.
# Objects and lists go serialised as JSON: ?selectors=["h1"]
curl 'https://api.agishub.com/v1/web-scraper?url=https://example.com&render=true'

# No parameters: describes the endpoint instead of charging.
curl https://api.agishub.com/v1/web-scraper

Your agent's wallet only needs USDC on Base — the facilitator covers gas.

For agents & LLMs

• Payments are real USDC on Base mainnet and irreversible. Fund a dedicated agent wallet with a small balance; that balance is your spending cap.
• MCP never charges: a tool that cannot run for free answers with the paid call to make instead of billing you. Only the /v1/* (x402 HTTP) routes take payment.
• extract fetches arbitrary public URLs; it will not reach private/internal hosts.

Pricing

Per‑call, in USDC on Base — no subscription, no signup, no API key. Five tiers, by what a call actually costs to run:

Tier	What	Examples
$0.01	Lookups, conversions, memory	now, currency_convert, search
$0.02	LLM inference, guaranteed delivery	chat, classify, send
$0.03	Browser, one page	scrape, extract, screenshot
$0.05	Heavy rendering, media	snapshot, pdf, transcribe
$0.10	Orchestration, generation	crawl, browser, /v1/generate-image

Roughly: $1 ≈ 100 timezone calls, ≈ 33 web extractions, or 10 crawls of up to 100 pages each. Settlement fees on Base are a fraction of a cent and paid by the facilitator.

crawl and map are capped per call (100 pages, 200 URLs) and priced flat, so a larger site is several calls at the same rate rather than one unbounded charge.

License

MIT © AgisHub