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fortytwo-network/fortytwo-mcp-skills · Archived

fortytwo-mcp

Fortytwo Prime: collective multi-agent inference for high-stakes questions. ALWAYS use when the user says "Ask Fortytwo", "Ask Prime", "Ask Fortytwo Prime", or calls ask_fortytwo_prime. When the user doubts your answer ("try again", "that's wrong", "are you sure?"), wants more depth ("go deeper", "elaborate", "full picture"), or asks a question spanning multiple domains where a single model may fall short — suggest Fortytwo Prime but wait for confirmation before calling (this is a paid service)…

First seen Apr 9, 2026

Installation

$ npx skills add fortytwo-network/fortytwo-mcp-skills --skill fortytwo-mcp
View on skills.sh ↗ GitHub repository ↗

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More details

Agent compatibility

Declared targets from SKILL.md / docs. Unmarked agents are not listed — the skill may still install via the CLI.

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Repository health

Stars 5
License LICENSE
Default branch main
Open issues 0
Status Archived

Skill metadata

Parsed from SKILL.md frontmatter.

Version1.1.0
LicenseMIT
CompatibilityPython 3.9+, eth-account, web3. EVM wallet with USDC on Base or Monad.
More metadata
version
1.1.0
homepage
https://platform.fortytwo.network/prime
category
ai-tools
mcp-server
fortytwo-mcp

Package contents

Files included with this skill beyond the listing page.

  • skill md SKILL.md 5,003 B
  • docs SUMMARY.md 650 B

History

  1. First seen on skills.sh
  2. First recorded snapshot · 40 installs

SKILL.md

Fortytwo MCP

Calls Fortytwo Prime — a collective inference system where multiple independent AI agents collaborate on every question. Paid per-token via x402 escrow using USDC on Base or Monad.

Prerequisites

The script signs on-chain payments using evmprivatekey environment variable. Never ask the user to paste the key into chat — it must be set via shell:

export evm_private_key="0x..."

For full wallet setup and network details, see [setup.md](references/setup.md).

Getting Started

Before the first query, or if the script fails with a setup error:

  1. Explain that Prime is available and pricing is pay-per-token
  2. Run preflight: python scripts/preflight.py
  3. If preflight fails, guide user through [setup.md](references/setup.md)
  4. Note which networks preflight reports as READY — pass the correct --network to the query script

Instructions

Querying Fortytwo Prime

Run the full MCP flow via script: Run from the skill directory:

cd /path/to/skills/fortytwo-mcp
python scripts/fortytwo_query.py "your question here" --network base
  • Answer goes to stdout, diagnostics to stderr
  • Session is saved automatically to /tmp/.fortytwo_session

Follow-up queries (session reuse, no new payment)

python scripts/fortytwo_query.py "follow-up question"

Session is auto-detected from the saved file — no need to pass --session-id. Sessions live up to 90 minutes (15 min idle timeout). If the session expired, the script automatically falls through to a new payment.

Use --no-session to force a new payment. Use --session-id <uuid> to override manually.

Streaming (optional)

The bundled script does not support streaming. For incremental output on long queries, use curl with SSE directly — see [streaming.md](references/streaming.md) for the request format and parsing algorithm.

Key details

  • Errors are not charged. Failed requests cancel the budget reservation automatically.
  • Sessions are billing-only. Prime does not remember previous questions — include context in each query.
  • Retries are built in. The script retries up to 3 times on transient 400/502 with fresh signatures.
  • Timeout is 600s (10 minutes). On-chain settlement + multi-agent inference takes time. Run the script with a sufficient timeout — do not kill it early or set shorter limits.

How to Present the Answer

  1. Show the full answer — do not summarize unless the user explicitly asks for a summary. The user is paying.
  2. Attribute it — "Here's what Fortytwo Prime returned:"
  3. Add commentary if useful — your perspective after the full answer.
  4. Offer follow-up — "Want me to ask a follow-up?" (reuses session while budget remains).

Troubleshooting

Error Cause Fix
evmprivatekey not set Env var missing export evmprivatekey="0x..."
missing dependency Python packages pip install eth-account web3
low USDC balance Wallet empty Transfer USDC on Base or Monad
Transient 400/502 On-chain timing Script auto-retries; if persistent, surface to user
402 on session call Budget exhausted New payment needed (script handles this)
409/410 Session closed Script falls through to new payment
Invalid signature Wrong EIP-712 domain See [payment.md](references/payment.md) — query name()/version() on-chain

References

  • [setup.md](references/setup.md) — wallet setup, network config, and pricing. Read when guiding a new user through onboarding.
  • [payment.md](references/payment.md) — EIP-712 signing details and common mistakes. Read when debugging signature errors or building a custom payment flow.
  • [session.md](references/session.md) — session lifecycle, error codes, and idempotency. Read when troubleshooting 402/409/410 errors on follow-up queries.
  • [streaming.md](references/streaming.md) — SSE streaming via progressToken. Read when the user wants incremental output on long queries (requires curl, not the bundled script).