decixa-mcp

Find the right API for your AI agent. 30,000+ listings tracked. 5,500+ verified live as of April 2026.

MCP Server for Decixa — The decision layer for AI Agents.

v0.1.7: intent-driven update. New resolve / discover tools replace search_apis / browse_apis (kept as deprecated aliases). See CHANGELOG.md for migration guide.

Quickstart

# Claude Code
npx decixa-mcp

// Claude Desktop — claude_desktop_config.json
{
  "mcpServers": {
    "decixa": {
      "command": "npx",
      "args": ["-y", "decixa-mcp"]
    }
  }
}

// Cursor / Windsurf — .cursor/mcp.json or .windsurf/mcp.json
{
  "mcpServers": {
    "decixa": {
      "command": "npx",
      "args": ["-y", "decixa-mcp"]
    }
  }
}

What you can do

resolve({ intent: "get real-time BTC price" })
→ Returns top recommendation + up to 2 alternatives, ranked by Phase 3 vector + scoring

resolve({ intent: "summarize Reddit posts", budget: 0.005 })
→ Filters by cost, returns trust_evidence and latency tier

discover({ intent: "transcribe audio", budget: 0.01, sort: "price_asc" })
→ Returns multiple x402-verified candidates so the agent can choose

Why Decixa

Unlike x402.direct, Decixa verifies x402 compliance by actually probing each endpoint — not just metadata analysis.

| | Decixa | x402.direct | |--|--------|-------------| | Listings tracked | 30,000+ | ~4,000 | | x402 verification | HTTP 402 probe (real) | Metadata scoring | | Capability classification | 9 verb-based axes | — | | Intent → API resolution | /api/agent/resolve | — | | MCP server | npx decixa-mcp | — |

Tools

resolve (recommended, replaces search_apis)

Find the best API for a task using natural language. Returns top recommendation + up to 2 alternatives. Decixa uses Phase 3 vector + scoring (vector 0.70 + latency 0.05 + price 0.05 + tiebreak 0.20). When no candidate clears the similarity threshold, returns recommendation_status='no_match' with up to 2 suggestions.

| Parameter | Type | Description | |-----------|------|-------------| | intent (required) | string | What you want to do (e.g. "summarize news articles") | | budget | number | Max USDC per call (e.g. 0.01) | | latency | string | low / medium / high | | min_similarity | number | Similarity threshold (0.2–0.9, default 0.5). Out-of-range → 400 |

Response includes recommendation_status ("resolved" or "no_match").

discover (recommended, replaces browse_apis)

List APIs ranked by intent. Returns multiple candidates so the agent can choose. Verified-x402 only.

| Parameter | Type | Description | |-----------|------|-------------| | intent (required) | string | Natural-language intent (mapped to server's task query param) | | tag | string | Filter by capability tag (e.g. "Market Data", "Risk Score") | | budget | number | Max USDC per call | | latency_tier | string | low / medium / high | | execution_mode | string | sync / async | | pricing_model | string | per_call / subscription / hybrid | | min_similarity | number | Similarity threshold (0.2–0.9, default 0.3). Out-of-range → 400 | | sort | string | relevance (default) / price_asc / price_desc / latency_asc / trust / calls (deprecated) | | limit | integer | Results per page (1–50, default 20) | | offset | integer | Pagination offset |

Response includes search_mode, min_similarity_applied, no_match_reason, top_candidates_below_threshold.

search_apis (deprecated alias for resolve)

DEPRECATED in v0.1.7. Will be removed in v1.0.0. Use resolve instead. Shares schema and handler with resolve.

browse_apis (deprecated alias for discover)

DEPRECATED in v0.1.7. Will be removed in v1.0.0. Use discover instead. Shares schema and handler with discover.

get_api_detail

Get full details for a specific API by ID.

| Parameter | Type | Description | |-----------|------|-------------| | api_id | string | API ID from resolve or discover |

Returns: endpoint URL, pricing, capability, tags, agent_compatibility, schema info, use_cases, trust_evidence (score / uptime_7d / p95_latency_ms / payment_req_parsed / last_checked / last_probed_at), provider, and verified_live flag. Prefer trust_evidence.score over legacy trust_score for new clients.

get_index

Entry point for agents new to Decixa. Returns platform overview, endpoints, and usage guidance.

No parameters required.

Migration from v0.1.6

| Old | New | Notes | |-----|-----|-------| | search_apis({intent, capability, agent_ready}) | resolve({intent, min_similarity?}) | Drop capability / agent_ready. They are silently ignored server-side (D-059). | | browse_apis({task, capability, agent_ready, sort}) | discover({intent, sort}) | task → intent, drop capability / agent_ready. Default sort changed trust → relevance. | | list_capabilities({}) | (removed) | Capability filtering is no longer needed. Pass intent text + optional tag filter. |

Strict MCP clients note: if your MCP client validates additionalProperties: false, it will reject capability / agent_ready arguments at the client side. Tolerant clients let them through, but Decixa silently ignores them server-side. Either way, remove them.

See CHANGELOG.md for full details.

Claude Code setup

See docs/claude-code.md for step-by-step Claude Code integration.

Environment Variables

| Variable | Default | Description | |----------|---------|-------------| | DECIXA_API_URL | https://api.decixa.ai | Decixa API base URL | | DECIXA_API_KEY | (empty) | API key — reserved for future use |

License

MIT