Bitcoin PSBT, Address & Descriptor Verifier + WorkSats L402 MCP Server

by workers-jeffpersons-botcheck Your server? Claim it

answering

Bitcoin PSBT, Address & Descriptor Verifier + WorkSats L402 MCP is answering right now. Last checked 8 min ago. It exposes 6 tools.

Verify Bitcoin PSBTs, addresses, and BIP380 descriptors; earn or spend WorkSats L402 bearer credits.

Uptime history 13 days of history

13 days agonow

100.0%

Uptime 24h

91 of 91 checks

Tools

read from the server

117 ms

Response time

average over 24h

open, no key

Access

streamable-http

Nothing serious here today

Today is the operative word: we check Bitcoin PSBT, Address & Descriptor Verifier + WorkSats L402 MCP every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 8 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add bitcoin-psbt-descriptor-l402-worksats --transport http 'https://botcheck.jeffpersons.workers.dev/mcp?client=registry'

Settings → Connectors → Add custom connector, then paste this address

https://botcheck.jeffpersons.workers.dev/mcp?client=registry

~/.codex/config.toml

[mcp_servers.bitcoin-psbt-descriptor-l402-worksats]
url = "https://botcheck.jeffpersons.workers.dev/mcp?client=registry"

.cursor/mcp.json

{
  "mcpServers": {
    "bitcoin-psbt-descriptor-l402-worksats": {
      "url": "https://botcheck.jeffpersons.workers.dev/mcp?client=registry"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "bitcoin-psbt-descriptor-l402-worksats": {
      "type": "http",
      "url": "https://botcheck.jeffpersons.workers.dev/mcp?client=registry"
    }
  }
}

Available tools 6

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

worksats

worksats_credits

Manage WorkSats bearer credits (`crd_...`): check `balance`, `split` credits to pay another bot, `rotate`/`merge` received tokens so the sender cannot double-spend, `mint` credits from L402 or x402 Base USDC, `bounty_create` to escrow credits for a verifiable task (`sha256`, `descriptor_derive`, `address_script`, `psbt_feerate`, `json_schema`), or view clearinghouse `stats`.

worksats_get_task

Fetch an open buyer-funded bounty task or a deterministic house micro-task (`descriptor_checksum_and_derive`) from the WorkSats clearinghouse (`GET /v1/tasks/next`). Solve it and call `worksats_solve_task` to mint bearer credits (`crd_...`).

worksats_solve_task

Submit a solved WorkSats task ticket (`tsk_...`) to mint a signed bearer credit token (`crd_...`). For house tasks, provide `checksum` and `scriptPubKeys`; for bounty tasks, provide `answer` or mode-specific fields (`addresses`, `address`, `scriptPubKey`, `feeSats`, `inputCount`, `outputCount`, `data`).

bitcoin

check_bitcoin_address

Verify a Bitcoin address (Bech32m P2TR, Bech32 P2WPKH/P2WSH, Base58 P2PKH/P2SH): network, type, witness version, scriptPubKey hex, and common pitfalls. Never send private keys or seed phrases. Free tier: 2 calls/day per IP; after that, pass a WorkSats `creditToken` (`crd_...`), L402 header, or Base USDC `x402TxHash`.

descriptor

check_descriptor

Validate a Bitcoin output descriptor (wpkh, wsh, tr, pkh, sh, multi, sortedmulti, raw, addr, combo): verifies or computes the 8-character BIP380 checksum, checks derivation paths and xpubs, and derives sample addresses and scriptPubKeys. Never send xprv, WIF, or seed phrases.

psbt

check_psbt

Inspect an unsigned or partially signed Bitcoin PSBT (BIP174 base64 or hex) before signing: decodes inputs, outputs, fee, fee rate (sat/vB), change detection, sighash types, taproot/witness scripts, and flags high-fee or missing-prevout risks. Never send private keys or seed phrases.

Endpoints

URL	Transport	State	Latency	Checked
https://botcheck.jeffpersons.workers.dev/mcp?client=registry	streamable-http	answering	144 ms	8 min ago

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Bitcoin PSBT, Address & Descriptor Verifier + WorkSats L402 MCP — questions

Answers built from our own checks of this server.

What can Bitcoin PSBT, Address & Descriptor Verifier + WorkSats L402 MCP do?

It exposes 6 tools, read directly from the server on our last check. Among them: check_bitcoin_address, check_descriptor, check_psbt, worksats_credits, worksats_get_task, worksats_solve_task. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is Bitcoin PSBT, Address & Descriptor Verifier + WorkSats L402 MCP working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 117 ms. The bar chart above shows every period we have measured.

How do I connect Bitcoin PSBT, Address & Descriptor Verifier + WorkSats L402 MCP?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does Bitcoin PSBT, Address & Descriptor Verifier + WorkSats L402 MCP need an API key?

No. Bitcoin PSBT, Address & Descriptor Verifier + WorkSats L402 MCP completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 6 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Bitcoin PSBT, Address & Descriptor Verifier + WorkSats L402 MCP?

It answers our handshake in 117 ms on average, which is faster than 90% of all working MCP servers we measure. That puts it in the quick quarter of the ecosystem. The comparison comes from our own checks across the whole registry, every 15 minutes.