OSA Procurement Guard
Pre-purchase trust, pricing and budget decisions for AI agents buying APIs and MCP tools.
Installation
Ajoutez ceci à la configuration MCP de votre client (Claude Desktop : claude_desktop_config.json ; Cursor : .cursor/mcp.json ; VS Code et les autres utilisent la même forme « mcpServers »).
claude mcp add --transport http osa-procurement-guard 'https://pkctqxeydfuiupadaoov.supabase.co/functions/v1/procurement-mcp' --header 'X-API-Key: <Required OSA API key. Get 20 free decision calls from websiteUrl.>'
{
"mcpServers": {
"osa-procurement-guard": {
"type": "http",
"url": "https://pkctqxeydfuiupadaoov.supabase.co/functions/v1/procurement-mcp",
"headers": {
"X-API-Key": "<Required OSA API key. Get 20 free decision calls from websiteUrl.>"
}
}
}
}
Documentation
Tirée du README du projet sur GitHub, actualisée chaque semaine. Les liens ouvrent GitHub.
Sommaire
OSA
OSA is a machine-commerce trust and procurement system for evaluating agent/API endpoints before purchase or routing spend.
Core product
OSA combines live endpoint verification with historical evidence and produces a TrustScore plus confidence and reason codes.
GET /best— rank matching endpoints by trust, intent and optional max price.GET /score— live-verify a registered endpoint.GET /history— return historical snapshots.POST /ingest— authenticated registry ingestion.POST /sources/mcpandPOST /sources/bazaar— ingest MCP/Bazaar-shaped records./.well-known/osa.json— machine-readable product metadata.
TrustScore currently considers uptime, latency, price stability, schema stability, payment stability and transaction evidence. Confidence is reported separately.
Architecture
OSA uses a split-plane design:
- Product/Data/Commercial plane — procurement/MCP distribution, pricing and benchmark history, endpoint observations, product usage, leads/deals and payment reconciliation.
- Control/Execution/Security plane — VPS agents, approvals, task policy, audit/control alerts, SSH bridge and certificate-only RAW SSH execution.
- GitHub — canonical source, CI/security scanning and controlled deployment workflows.
The split keeps product data workloads separate from privileged infrastructure execution.
Security
- Endpoint verification is read-only (
GET/HEAD). - SSRF defenses reject local/private/link-local/documentation targets and unsafe URL schemes.
- DNS results and redirect targets are revalidated.
- Response size, redirect count, timeouts and concurrency are bounded.
- Ingestion is authenticated in production.
- Privileged VPS execution uses short-lived SSH certificates and host-key verification.
- Secrets and private keys are not committed to this repository.
Commercial acquisition tool
npm run lead:audit -- https://example.com
The Lead-Leakage Audit performs a public-page, read-only conversion-path audit. It does not submit forms, authenticate, bypass controls or access private systems. It can be used as an evidence-first acquisition wedge for OSA services without becoming a separate product strategy.
Quick start
npm install
npm test
npm start
Payments
The public checkout exposes one human product: the $79 OSA 30-Day MCP Reliability Pilot. A buyer can request a private invoice/bank-transfer route or pay immediately with USDC on a verifier-backed network. Card and mobile-wallet buttons stay hidden until a live merchant rail is independently verified. Tap is owner-disabled. Optional x402 v2 middleware remains the machine-payment path for /best and /score when OSA_PAY_TO is configured. Requests, test events, page views, and wallet connections are never counted as revenue.
Operating rule
OSA is one product. Agent Trust Oracle, Procurement Guard, pricing/benchmark intelligence, MCP reliability and payment-rail checks are modules of the same pre-transaction decision system.
Progress means verified external usage, verified payment and repeat usage — not internal test rows, crawler probes, generated dashboards or speculative revenue.
Revenue-first gate
Before first verified external payment, OSA keeps one primary revenue path plus one backup and freezes generalized product/infrastructure/payment/browser/autonomy expansion unless it is the minimum fix for a named external blocker or a real safety incident.
Every non-trivial change should carry the decision record defined in knowledge/05-revenue-gate.md. Pull requests are checked by the Revenue Gate workflow. The governing distinction is strict: BUILT != VERIFIED != SELLING != PAID.
Ecosystem
Questions fréquentes
Qu'est-ce que OSA Procurement Guard ?
Pre-purchase trust, pricing and budget decisions for AI agents buying APIs and MCP tools.
Comment installer OSA Procurement Guard ?
Il fonctionne comme serveur distant. Dans Claude Code : claude mcp add --transport http osa-procurement-guard 'https://pkctqxeydfuiupadaoov.supabase.co/functions/v1/procurement-mcp' --header 'X-API-Key: <Required OSA API key. Get 20 free decision calls from websiteUrl.>'. Pour les autres clients, collez la configuration JSON de cette page dans leurs réglages MCP.
Faut-il une clé API pour OSA Procurement Guard ?
Oui. Il attend X-API-Key, à renseigner dans sa configuration.
OSA Procurement Guard est-il open source ?
Son code est public sur GitHub, mais le dépôt ne déclare pas de licence standard.
Qui maintient OSA Procurement Guard ?
Il est publié par omarfff. AI.tn le référence sans le maintenir ni le recommander.
Issu du registre MCP officiel. Être listé n'est pas une recommandation : vérifiez le code et les permissions d'un serveur avant de lui donner accès à vos données.