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16 days ago

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predmarket-mcp

Item: predmarket-mcp
Rating: 67
Author: M8ven

A monetizable remote MCP server that provides prediction-market intelligence tools for AI agents, enabling discovery, evaluation, and mispricing detection across venues like Polymarket and Kalshi with per-call payment.

→ johnsmithxy1mmm-sys/MCP · listed on glama

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// key findings

✅

No credential exfiltration, no sensitive file access, no obfuscation

Static analysis found nothing flowing your secrets to unexpected places.

🔐

You'll be asked for 3 credentials: KALSHI_API_KEY, VOYAGE_API_KEY, SIGNING_KEY

These are read from process.env at runtime. Make sure you trust where they’ll be sent.

// required environment variables

This server reads these from process.env. You'll be asked to provide them before it can run.

configHTTP_TIMEOUT

configKALSHI_API_URL

🔐 secretKALSHI_API_KEY

configPOLYMARKET_GAMMA_URL

configPOLYMARKET_CLOB_URL

configMATCHER— lexical Cross-venue matcher tier: lexical (offline), semantic (embeddings), hybrid.

configMATCH_MIN_CONFIDENCE— 0.45 Match threshold — tune when using semantic/hybrid (cosine is on a different scale).

configVOYAGE_API_URL

🔐 secretVOYAGE_API_KEY— Required for EMBED_BACKEND=voyage (Voyage AI — Claude has no embeddings endpoint).

configEMBED_BACKEND— / EMBED_MODEL fastembed / BAAI/bge-small-en-v1.5 Embedder for the semantic tier. EMBED_BACKEND=voyage uses a hosted embedder (no model in the image — serverless-friendly).

configEMBED_MODEL— EMBED_BACKEND / fastembed / BAAI/bge-small-en-v1.5 Embedder for the semantic tier. EMBED_BACKEND=voyage uses a hosted embedder (no model in the image — serverless-friendly).

configLIVE_MARKET_TTL

configLIVE_BOOK_TTL

configRECON_DB_URL— sqlite:///reconciliation.db Track-record store (flagged → resolved → realized).

configHISTORY_DB_URL— sqlite:///history.db Price-history store (live mode); Postgres/Timescale DSN for production.

configWATCH_DB_URL— sqlite:///watches.db Watch/alert subscription store.

configAUTH_JWKS_URI— / AUTH_ISSUER / AUTH_AUDIENCE — OAuth 2.1 fallback.

configAUTH_ISSUER— AUTH_JWKS_URI / / AUTH_AUDIENCE — OAuth 2.1 fallback.

configAUTH_AUDIENCE— AUTH_JWKS_URI / AUTH_ISSUER / — OAuth 2.1 fallback.

configPAYMENT_RAIL— x402 # or "apikey" for the OAuth/metering fallback

configPRICING_PATH

configMETERING_BACKEND— local local \ stripe \ moesif.

configX402_OPERATOR_WALLET— Payee address for x402.

configX402_FACILITATOR_URL— External facilitator (optional).

configX402_NETWORK— base-sepolia Settlement network.

configHOST— / PORT 0.0.0.0 / 8000 Bind address.

configCORE_ENGINE— (the MCP layer never changes either way):

🔐 secretSIGNING_KEY— Operator secret; when set, responses carry an HMAC-SHA256 provenance signature.

// full audit trail

The full breakdown of what we checked, the deductions that landed, the network hosts, the dependency advisories, and concrete fix guidance is available to verified publishers.

// improvement guidance — verified publishers only

We have 6 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.

// embed badge in your README

[![M8ven Score](https://m8ven.ai/badge/mcp/johnsmithxy1mmm-sys-mcp-1necwm)](https://m8ven.ai/mcp/johnsmithxy1mmm-sys-mcp-1necwm)

commit: d408f1821a9d1c4b639e2197115cf4f9309091db

code hash: 1b152532f06b7576d41b10128fb2b9a49a153fbb01823b1a92ab9cb28d180ae8

verified: 7/15/2026, 8:48:12 AM

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