270 pay-per-call AI tools for agents, paid via x402 (USDC on Base). No signup, no API keys.
Quick Install
Automated & IDE SetupCopy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.
One-click editor setup isn’t available for this listing yet — we don’t have a confirmed install command, and we’d rather show nothing than point your editor at the wrong package or host. Follow the project’s own setup instructions, linked above.
Manual Client & Custom JSON ConfigExpand JSON ▾
No confirmed setup config for this listing yet. We only publish a config block when the install details come from the project itself — its README, its docs, or a verified owner. We haven’t found those for Andreax, and we’d rather show nothing than a guess you’d paste into your client. Follow the project’s own setup instructions for the current steps.
Documentation Overview
Andreax — pay-per-call AI tools for agents (MCP + x402)
Remote MCP server: https://pagos.andreax.dev/mcp (Streamable HTTP, JSON-RPC)
Andreax is a remote MCP server with 270 pay-per-call tools for AI agents — text, code, documents, audio, web research and on-chain data. There is no signup and no API key: each call is paid individually with x402 in USDC on Base, from $0.001 per call.
- No accounts, no keys. The payment is the authentication.
- Gasless for the payer. EIP-3009
transferWithAuthorization; the settlement gas is paid by Andreax. - Free preview. Every tool accepts
?sample=1and returns an example output at no cost. - Discovery in one request.
GET https://pagos.andreax.dev/.well-known/x402.json
This repository only contains the public listing (README + directory metadata). The server itself is hosted; there is nothing to install.
Connect
Claude Desktop / Cursor / any MCP client (via mcp-remote)
Clients with native remote-MCP support
Add a remote server with URL https://pagos.andreax.dev/mcp (transport: Streamable HTTP, auth: none).
JavaScript SDK (handles the x402 payment for you)
How payment works
tools/listis free.tools/callwithout payment returns an x402 v2 challenge: exact amount, network (eip155:8453), asset (USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) and recipient.- Your agent signs an EIP-3009 authorization for that amount and retries with it
(argument
x_payment, or theX-PAYMENTheader over HTTP). - The result comes back together with the on-chain settlement reference.
Your agent only needs a wallet with a little USDC on Base — no ETH.
Tools (a selection of the most used — tools/list returns all 270)
| Tool | What it does | Price (USDC) |
|---|---|---|
compress | Compress a prompt into dense language (20–40% fewer tokens) | 0.001 |
count-tokens | Estimate the token count of a text | 0.001 |
detect-language | Detect a text's language (ISO 639-1) | 0.001 |
summarize | Faithful bullet-point summary | 0.003 |
translate-to | Translate into any target language | 0.003 |
sentiment | Positive / negative / neutral + confidence | 0.002 |
entities | Named-entity recognition as JSON | 0.003 |
classify-topic | Topic classification for routing/tagging | 0.002 |
extract-json | Structured data from free text | 0.004 |
json-fix | Repair malformed JSON | 0.002 |
proofread | Spelling and grammar, same language | 0.002 |
rewrite-formal | Formal, professional rewrite | 0.003 |
moderate | Flag unsafe text | 0.002 |
injection-guard | Detect prompt-injection in text / tool outputs | 0.010 |
text-to-sql | SQL from a natural-language request | 0.005 |
regex | Regular expression from a description | 0.020 |
cron | Cron expression from a schedule in words | 0.020 |
code-review | Bugs, security issues, improvements | 0.020 |
code-gen | Code from a description | 0.008 |
read-url | Clean readable text of a web page | 0.002 |
read-pdf | Text of a PDF from a URL | 0.003 |
ocr | Text from an image or scanned PDF (EN/ES) | 0.050 |
transcribe | Speech-to-text with language detection | 0.050 |
embeddings | Embedding vector for search / RAG | 0.001 |
semantic-search | Rank documents against a query | 0.003 |
research | Web research with cited sources | 0.050 |
fact-check | Verdict + reasoning for a claim | 0.030 |
crypto-price | Live crypto price + 24h change | 0.005 |
wallet-balance | ETH and USDC balance of a Base address | 0.002 |
fx | Currency conversion quote into USDC | 0.001 |
smart-document | OCR → summary → translation, one call | 0.100 |
meeting-minutes | Recording → minutes, decisions, action items | 0.040 |
The live catalog (with the current prices, which are authoritative) is at
https://pagos.andreax.dev/api/taller/peaje/catalogo.
Links
- Storefront: https://pagos.andreax.dev/tienda
- x402 discovery: https://pagos.andreax.dev/.well-known/x402.json
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