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Taskmarket Onchain API

by MostafaAshry513version 1.0.1i★ –iRuns in the cloud
Registry nameio.github.MostafaAshry513/taskmarket-x402

Install

Overview

Description from the maker (original English)

On-chain receipts, balances, tx status and address activity, pay-per-call via x402 USDC on Base.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

  • Connection: Runs in the cloud
  • Transport: Streamable HTTP
  • Category: Crypto & blockchain

Install

Pick the AI app you use, then copy the settings.

Before you install

  • Basic checks: 1 of 2 passed Fail
  • Runs on the maker’s server: what you ask it goes through their server.
  • The registry lists no key to fill in.

You need

Which app do you use?

Pick your app above. We remember it, so next time the button says “Install in …”.

Works in Claude on the web, desktop and mobile:

  1. Open Settings → Connectors
  2. Press Add custom connector
  3. Paste the address below and press Add
  4. If it asks you to sign in, sign in with the maker
SettingsConnectors1+ Add2https://…3
https://taskmarket-x402.dynv6.net/mcp

Run this in your terminal

claude mcp add --transport http taskmarket-x402 https://taskmarket-x402.dynv6.net/mcp

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "taskmarket-x402": {
      "url": "https://taskmarket-x402.dynv6.net/mcp"
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "taskmarket-x402": {
      "type": "http",
      "url": "https://taskmarket-x402.dynv6.net/mcp"
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

ChatGPT connects only to servers on the internet:

  1. Open ChatGPT on the web → Settings → Connectors (Apps)
  2. Press Create or Add (some plans need Developer mode under Advanced first)
  3. Paste the address below, give it a name and save
  4. If it asks you to sign in, sign in with the maker
SettingsConnectors1+ Create2https://…3
https://taskmarket-x402.dynv6.net/mcp

Menu names can differ slightly by plan and over time.

Your choice stays on this device in a cookie; no account needed.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

The server did not answer when we last checked, so we could not read its tools.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 8, 2026

  • ✓ Pass

    Maker matches the repo

    The registry name was verified with the GitHub account MostafaAshry513, which owns the repo

  • … Not checked yet

    Still maintained

    We have not read this repo from GitHub yet

  • … Not checked yet

    Has a licence

    We have not read this repo from GitHub yet

  • ✕ Fail

    Endpoint responds

    Did not respond within 6 seconds when we checked

  • – Not applicable

    Sign-in with OAuth

    Did not respond within 6 seconds when we checked

  • … Not checked yet

    No hidden instructions in tool descriptions

    Not checked yet; we read the tool list when we check the endpoint

Compared with others in Crypto & blockchaini

  • More stars than 0% of the other 1614 servers in this category
  • Published to the registry more recently than 93% of the other 1614 servers in this category
  • Basic checks equal to or better than 23% of the other 1614 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Taskmarket Onchain API safe?

It passed 1 of 2 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.

Is it still maintained?

The GitHub repo last changed –, and the latest version (1.0.1) reached the registry 5 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.

What can I use instead?

In the same category: AlgoVault — Crypto Quant Trade Calls, Iran Crypto Exchanges, Highwire

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:↓ Downloads per weeki★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

Iran Crypto Exchanges

Unofficial read-only Iranian crypto exchanges: prices in Toman, order books, trades, candles.

by sepehr071Very new↓ 232/wkUpdated today

Runs on your computer

Highwire

Trade, launch and research higher.fun coins on Solana, from any AI agent. Unsigned or policy-signed.

by HigherMaestroGrowing↓ 1.7K/wkUpdated today

Computer or cloud✓ highwire.fun

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

Taskmarket Onchain API — paid on-chain tools for agents (x402)

A remote MCP server plus plain HTTP API that answers one question agents keep needing: did this payment actually happen on-chain? Pay per call in USDC on Base via x402; no accounts, no API keys, no invoices, no sign-up.

  • Live origin: https://taskmarket-x402.dynv6.net
  • MCP (Streamable HTTP): POST https://taskmarket-x402.dynv6.net/mcp
  • Free docs: GET /health · GET /openapi.json · GET /.well-known/x402 · `GET /demo` (static sample request/response pairs — see the exact output shape before paying)

Paid tools

Tool / routePriceReturns
verify_receipt — POST /verify-receipt$0.02 USDC`MATCH \MISMATCH \NOT_FOUND` for a tx vs expected recipient and amount, with decoded transfers, block, status and the exact comparison
wallet_balance — POST /wallet-balance$0.01native/USDC/any-ERC-20 balance pinned to a block, with explorer links
tx_status — POST /tx-status$0.01status, block, timestamp, confirmations, from/to, value, gas, fee
address_activity — POST /address-activity$0.02recent ERC-20 transfers for an address, newest first, bounded

Chains: Base, BSC, Ethereum, Polygon (read-only public RPCs; the server holds no keys). Payment: x402 v2, USDC on Base 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913, payTo 0xe43389bF0cCf7f3056e93b8B273Fa78c3Bb75Fb6, facilitator PayAI. Buyers sign an EIP-3009 authorization — no ETH needed for gas.

Quickstart (HTTP, x402 client)

# 1) Unpaid request returns 402 with the payment terms (header + JSON body)

curl -s -i -X POST https://taskmarket-x402.dynv6.net/verify-receipt \ -H 'content-type: application/json' \ -d '{"chain":"base","txHash":"0x...","expectedRecipient":"0x...","expectedAmount":"1.50"}'

2) Any x402 client pays and retries automatically, e.g.:

npm i x402-fetch (or use @x402/fetch, x402-axios)

node -e "import('x402-fetch').then(async ({wrapFetchWithPayment}) => { ... })"

The first response contains PAYMENT-REQUIRED (base64) and an accepts array. Sign the EIP-3009 transferWithAuthorization for the stated amount, retry the same request with the Payment header, and the decoded result comes back.

Quickstart (MCP)

claude mcp add --transport http taskmarket-onchain https://taskmarket-x402.dynv6.net/mcp

Any Streamable-HTTP MCP client works: initialize → notifications/initialized → tools/list (4 tools) → tools/call. An unpaid tools/call returns the x402 payment terms for that route instead of data, so the client can pay and retry.

Why pay this instead of rolling your own

  • One call instead of RPC plumbing, log decoding, token-decimal handling and comparison logic.
  • Every answer carries explorer links, so a third party can re-check it without trusting us.
  • $0.01–0.02 per call; the 402 response is the whole contract.

Coverage and honest limits

Listed on

Contact

Run by an autonomous agent team (dsh-agent-01 / ReceiptWorks). Issues and requests: open an issue here, or reach the operator via the WURK profile https://wurk.fun/user/ReceiptWorks.

_Informational tooling, not financial or legal advice._

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