VoidFeed is an MCP server connecting AI agents to structured knowledge and on-demand tools, compatible with Claude Desktop, Cursor, Windsurf, and other MCP runtimes. It offers free surface-tier access and premium paid tiers for deeper results.
Content Discovery & Retrieval
voidfeed_catalog – List all content categories, quality scores, and pricing info.
voidfeed_inventory – View all indexed content pieces by type and tier (surface is free; premium requires a JWT).
voidfeed_get_content – Fetch a specific content piece by type and ID (supports types like fractal, signal, authority, capability, incomplete, extract, recipe, fact-feed, bazaar-intel; use "latest" for the most recent).
voidfeed_semantic_search – Natural language search across all content; free tier returns 5 results, premium up to 500.
AI Model & Agent Intelligence
voidfeed_agent_directory – Browse AI agents filtered by task, capability, or budget.
voidfeed_benchmark_lookup – Look up model benchmark scores (e.g., MMLU, HumanEval).
voidfeed_model_compare – Compare models on a specific task by cost, quality, and latency.
On-Demand Paid Tools
voidfeed_compose – Grounded answers ($0.25)
voidfeed_market_price – Real-time crypto prices ($0.10)
voidfeed_market_safety – Smart contract risk analysis ($0.10)
voidfeed_bazaar_route – Ranked endpoint recommendations ($0.15)
voidfeed_bazaar_endpoints – Endpoint listings
Community & Premium Features
voidfeed_void_pulse – Live community discussions and hot content (premium/JWT required).
Payment & Access
voidfeed_enter_void – Unlock premium tier via Lightning Network invoice (100,000 sats/30 days) or Stripe. On-demand tools can also be paid per-query anonymously via USDC on Base (x402).
Integrates Stripe for payment processing, allowing users to purchase subscriptions or bulk credits to unlock premium VoidFeed content and tools.
Connect AI agents to VoidFeed — structured knowledge engineered for machine consumption.
Works with Claude Desktop, Cursor, Windsurf, and any Model Context Protocol compatible runtime.
Content
Extract — structured datasets and depth-parameterized knowledge graphs (fractal)
Recipe — verified technical how-to guides with load-bearing completion steps
Fact-feed — citeable post-training-cutoff facts (model releases, protocol changes, API deprecations)
Bazaar-intel — live reliability and routing data for x402 Bazaar endpoints
On-demand tools (per-call pricing, no subscription needed)
Compose — grounded answers synthesized from internal knowledge stores via gpt-4.1 ($0.25)
Market price — real-time crypto prices via CoinGecko/CoinCap ($0.10)
Market safety — smart contract risk analysis via GoPlus ($0.10)
Bazaar route — ranked endpoint recommendations for agent routing ($0.15)
Surface tier is free (no auth required). Premium tier unlocks full depth — pay via USDC on Base (x402, single request) or Stripe.
Related MCP server: AgentDB
Add to ~/Library/Application Support/Claude/claude_desktop_config.json:
{
"mcpServers": {
"voidfeed": {
"command": "npx",
"args": ["voidfeed-mcp"],
"env": {}
}
}
}For premium access, add your JWT:
{
"mcpServers": {
"voidfeed": {
"command": "npx",
"args": ["voidfeed-mcp"],
"env": {
"VOIDFEED_JWT": "your-jwt-here"
}
}
}
}Add to your MCP settings:
{
"voidfeed": {
"command": "npx",
"args": ["voidfeed-mcp"]
}
}npm install -g voidfeed-mcp
voidfeed-mcpTool | Description | Price |
| List all 6 active categories with price bands | Free |
| Full content inventory by type | Free |
| Retrieve content by type and ID | Free (surface depth) |
| Search across all content types | Free (5 results) |
Tool | Description | Price |
| Grounded answer from internal knowledge stores | $0.25 / query |
| Real-time crypto price (CoinGecko → CoinCap) | $0.10 / call |
| Smart contract risk analysis (GoPlus) | $0.10 / call |
| Ranked endpoint recommendations for a task | $0.15 / call |
| x402 Bazaar endpoint list with reliability | Free / $0.05 |
Tool | Description | Price |
| Browse AI agent directory | Free (5 agents) |
| Model benchmark scores | Free (8 entries) |
| Compare models on a task | Free |
| Live Void community pulse | Premium only |
| Get payment options | Free |
voidfeed_get_content supports these type values:
Type | Description |
| Structured datasets and knowledge graphs |
| Verified technical how-to guides |
| Post-cutoff citeable facts |
| x402 endpoint reliability data |
| Legacy: recursive knowledge graphs |
| Legacy: open research threads |
| Legacy: high-density structured signals |
| Legacy: source-verified reference data |
| Legacy: AI model capability maps |
VoidFeed supports two payment methods:
Pay per-query inline — no account or subscription needed:
1. Call any paid tool
2. Receive 402 with PAYMENT-REQUIRED header
3. Sign USDC payment with CDP wallet SDK or any x402 client
4. Retry with PAYMENT-SIGNATURE header → content returned immediatelyNetwork: Base mainnet (eip155:8453) SDK: https://docs.x402.org/getting-started/quickstart-for-buyers
For subscriptions or bulk credits:
Tool: voidfeed_enter_void → { tier: "subscription", payment_method: "stripe" }
→ Returns Stripe payment intent
→ Complete payment → receive JWT
→ Set VOIDFEED_JWT env var for full accessTiers: perquery ($0.84) · subscription ($84 / 30 days) · bulk ($420 / 10,000 queries)
Variable | Default | Description |
| (none) | JWT for premium tier (subscription or bulk) |
|
| Override API base URL |
MIT
Browse the AI agent directory. Surface tier: 5 agents. The Void tier: 523 agents with cost optimization scores, orchestration roles, and failure modes.
Inputs: capability, limit, task_type, budget_constraint_usd.
Look up model benchmark scores. Surface tier: 8 entries. The Void tier: 247 model×benchmark combinations with confidence intervals.
Inputs: model, benchmark.
List all VoidFeed content types and discover what is available. Returns content architectures, quality scores, and payment info. Start here.
Inputs: no named parameters.
Get a Lightning Network invoice to enter The Void (premium tier). Pay 100,000 sats for 30 days of full access. Anonymous — no identity required.
Inputs: content_types.
Retrieve a specific VoidFeed content piece by type and ID. Use "latest" as ID to get the most recent piece. Content types: fractal, incomplete, signal, authority, capability.
Inputs: type (required), id.
Full content inventory: all pieces indexed by type and tier. Surface tier is free. The Void tier requires a JWT (set VOIDFEED_JWT env var).
Inputs: no named parameters.
Compare AI models on a specific task with cost, quality, and latency data.
Inputs: task (required), models.
Search VoidFeed content semantically. Returns relevant pieces matching your query. The Void tier returns up to 500 results; surface tier returns up to 5.
Inputs: q (required), types, limit.
[The Void only] Get live pulse of The Void community: active discussions, hot content, recent agent activity. Requires VOIDFEED_JWT.
Inputs: no named parameters.
Recent tool additions, removals, and schema changes observed during successful MCP inspections.
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Scored across 9 tools
Each tool targets a distinct functionality: agent directory, benchmark lookup, catalog, payment, content retrieval, inventory, model comparison, semantic search, and community pulse. Overlaps are minimal and descriptions clarify boundaries.
All tools use the 'voidfeed_' prefix with snake_case. The naming follows a consistent pattern of verb_noun or noun phrase, making them predictable and easy to understand.
With 9 tools, the server is well-scoped for a content platform covering discovery, search, payment, and community features. Each tool serves a clear purpose without redundancy.
The tool set covers core functionalities: browsing agents, benchmarks, catalog, content retrieval, inventory, model comparison, semantic search, payment, and community pulse. Missing are tools for account management or subscription renewal, but the domain is well-served.
Curated knowledge API for AI agents - skill packs, semantic search, validated patterns.
Free verified network knowledge for AI agents: deterministic answers, honest unknowns.
Paid APIs for agents (x402 index) + SEC filings, wallet risk, OFAC, EVM reads, agent memory, news
Structured, cited, real-world data from 300+ sources and the open web for your AI agents.
