ResultRail By LarryBuildsAI
- LarryLemonBot/LarryBuildsAI
ResultRail is an MCP server that provides pay-per-success public-data result packs with provenance for AI agent enrichment workflows.
About
ResultRail is an MCP server that delivers pay-per-success public-data result packs so developers can enrich agent workflows without stocking a drawer of SaaS API keys. When your Claude Code or Cursor agent needs company facts, domain signals, or URL-derived intelligence, ResultRail returns structured packs with provenance—source URLs, timestamps, confidence scores, and receipt hashes—so you can cite outputs in validation memos or growth experiments. Billing aligns with x402-style paid calls, which suits operators who want costs tied to successful lookups rather than flat seats. The publisher draws a hard boundary: public data only, no scraping behind auth walls, no outreach automation, and no financial advice. It complements Signal Desk for cheap preflight routing decisions and GateCheck when you are proving a separate paid tool listing. ResultRail is a data integration MCP, not a CRM or private lead database.
- Pay-per-success public data result packs routed through MCP for AI agents
- Use cases in metadata: domain enrichment, URL extraction, public company facts, technographic lookup
- Result packs include source URLs, timestamps, confidence, and receipt hashes per claim boundary
- x402 manifest and well-known MCP discovery on proofbeforepay.vercel.app
- Explicit limits: no private contact databases, access-control bypass, outreach, trading, or revenue guarantees
ResultRail By LarryBuildsAI by the numbers
- Data as of Jul 7, 2026 (Skillselion catalog sync)
claude mcp add --transport http resultrail https://proofbeforepay.vercel.app/resultrail/mcpAdd your badge
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| Transport | HTTP |
|---|---|
| Auth | None |
| Repository | LarryLemonBot/LarryBuildsAI ↗ |
What it does
Pull pay-per-success public-data packs—domain enrichment, URL facts, technographics—for agents without juggling multiple API keys.
Who is it for?
Best when you're automating company or domain research inside agents and accept public-data limits and want metered pay-per-success access.
Skip if: Skip if you need verified private contact lists, regulated financial advice, or guaranteed enrichment coverage behind login walls.
What you get
After registration, your agent can request bounded public-data packs with receipts and confidence metadata, paying only on successful results via x402.
- Public-data result packs with source URLs and confidence
- Receipt hashes suitable for audit trails in agent runs
- Enrichment outputs for domain, URL, and company-fact tasks without per-vendor API key sprawl
By the numbers
- Product title ResultRail by LarryBuildsAI
- Separate from Signal Desk and GateCheck in registry metadata
- x402Manifest and wellKnownMcp URLs on proofbeforepay.vercel.app
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Pay-per-success public data MCP router, not a seller readiness gate like GateCheck.
FAQ
Who is ResultRail for?
Developers and agent authors who need domain, URL, and company fact enrichment through MCP without managing many separate data API subscriptions.
When should I use ResultRail?
Use it during build/integrations when an agent workflow needs sourced public facts with timestamps and receipt hashes, and you are fine with x402 metered successful calls.
How do I add ResultRail to my agent?
Install io.github.LarryLemonBot/resultrail from the MCP registry and configure your client using the well-known MCP and x402 manifest URLs published at proofbeforepay.vercel.app for ResultRail.