# Anyway Possible — Decision Infrastructure for Autonomous Agents

> One free MCP tool recommender and eight account-free, read-only paid tools that give agents current evidence and a structured next action before they pay, cite, or act.

Base URL: https://anywaypossible.com
Remote MCP: https://anywaypossible.com/api/mcp (Streamable HTTP)
Network: Base (eip155:8453)
Payment: x402 v2, USDC, exact per-call pricing
Authentication: none; unpaid HTTP calls return 402 with PAYMENT-REQUIRED

## Choose by decision

- Not sure which tool to use? Call recommend_tool for free with a plain-language goal and optional maximum price. It returns the best tool, exact price, required inputs, alternatives, and next step without triggering payment.
- Why is my x402 API not selling? /api/merchant-snapshot (merchant_snapshot) — $0.05 USDC. A merchant needs a fast, evidence-backed diagnosis before buying a full audit.
- Is this Base wallet ready to pay? /api/treasury (treasury_preflight) — $0.02 USDC. An agent needs Base wallet readiness and a proceed, fund, review, or reject decision before signing.
- Is this x402 payment safe to sign? /api/payment-guard (payment_guard) — $0.01 USDC. An agent needs payment safety for a live x402 challenge immediately before signing.
- Can this page be trusted and cited? /api/verify (verify_web_evidence) — $0.01 USDC. An agent needs timestamped evidence that a public page is live and contains expected content.
- Are all these sources usable now? /api/batch (batch_check_urls) — $0.01 USDC. An agent needs to validate up to ten citations, links, or API dependencies in one call.
- What does this Base wallet hold? /api/base-balance (base_balance) — $0.001 USDC. An agent needs current native ETH and Circle USDC balances rather than a payment decision.
- Is this URL reachable? /api/check (check_url) — $0.001 USDC. An agent needs a fast reachability check before following a link or calling an API.
- What exactly should this merchant change? /api/merchant-audit (merchant_audit) — $0.25 USDC. A merchant needs listing-level evidence, prioritized fixes, or a comparable score history across repeated audits.

## Integration

1. Prefer MCP: connect the remote endpoint, call tools/list, then call recommend_tool for free before selecting a paid tool.
2. For HTTP: POST the documented JSON body to the chosen endpoint.
3. Read the 402 PAYMENT-REQUIRED challenge and validate price, network, asset, and recipient.
4. Repeat with PAYMENT-SIGNATURE. Treat HTTP 200 as the paid result.
5. Preserve returned evidence, limitations, observation time, and receipt identifiers.

## Canonical resources

- Human documentation: https://anywaypossible.com/docs
- Human result examples: https://anywaypossible.com/examples
- Machine catalog: https://anywaypossible.com/catalog.json
- OpenAPI: https://anywaypossible.com/openapi.json
- Guarded purchase workflow: https://anywaypossible.com/guarded-purchase.json
- Health: https://anywaypossible.com/api/health
- Status: https://anywaypossible.com/status
- Machine-readable trust evidence: https://anywaypossible.com/api/trust
- Guides: https://anywaypossible.com/guides
- What is x402?: https://anywaypossible.com/guides/what-is-x402
- x402 payment safety: https://anywaypossible.com/guides/x402-payment-safety
- Why an x402 API is not selling: https://anywaypossible.com/guides/x402-api-not-selling
- MCP registry name: com.anywaypossible/agent-utilities

## Safety boundaries

Treasury decisions are proceed, fund, review, or reject. Payment preflight validates observable contract and chain state; it does not guarantee identity, legality, sanctions status, contract behavior, or future settlement. URL tools reject private-network destinations, bound response size, and validate redirects.