"Toll" matching MCP connectors:

Real-time MCP & A2A prompt-injection, jailbreak, and tool-schema poisoning firewall for AI agents.

Certified-equivalent tool substitution: probe-certified ratings, signed receipts, DAW, prior auth.

Cache guard: forced-private partitioning, TTL clamp, fingerprint diffing, exposure verdicts.

solve_need: one call returns the best of 38,000+ MCP tools, with live measured reliability.

Dispatch-boundary attestation: prove a tool call was issued for its exact arguments.

Unauthenticated OAuth2 callback collector for Tollbooth MCP services

Check if an MCP server changed its tools: signed history, per-server coverage, offline proofs.

Free spend report from an agent log, no key. Hosted proxies: caps, audit export, buy calls.

37 paid x402 MCP tools for OSINT, prediction markets, web intel, and agent security on Base USDC.

Tool-result context binding: signed binding stamps verified at consumption, fail-closed verdicts

Tollbooth Authority — North America regional certifier

PCI DSS self-assessment for merchants: picks the SAQ, guides the answers, returns SAQ + AoC PDFs.

Scan MCP servers for tool poisoning, hidden instructions and silent tool changes. Runs on Apify.

A witness layer for AI agent tool calls.

Audit MCP servers for tool poisoning and shadowing. Scan a remote server by URL or paste its tools.

Computes MD5, SHA1, SHA256, SHA512, and CRC32 digests from text, base64, or hex input.

Remote MCP for A2A caller identity, scope policy, verdict receipts, and audit history.