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Settlens vs Zorvik
Offers end-to-end testing and mocking for HTTP APIs, not dedicated x402 payment safety checks.
SettlensCatch x402 payment-policy regressions before paying
ZorvikZorvik --> From HTTP to MCP: test, mock, load-test every API, free and local.Which to pick
Pick Settlens if you want…
- Policy-driven preflight checks for x402 payments
- Integrations with Node.js, HTTP API or MCP server (on Settlens' list, not Zorvik's)
Pick Zorvik if you want…
- All-in-one offline API workbench
- API test and mock framework
- Integrations with HTTP/1.1, HTTP/2 or HTTP/3 (on Zorvik's list, not Settlens')
Side by side
- What it is
- Settlens:Settlens validates x402 payment requests against policies, providing pre-payment decisions without sending funds.
- Zorvik:Zorvik is a free, open-source desktop app to build, test, mock and load-test APIs across many protocols locally.
- Best for
- Settlens:Policy-driven preflight checks for x402 payments
- Zorvik:All-in-one offline API workbench
- Who it’s for
- Settlens:Teams building or operating x402-based paid APIs and AI agents that need payment safety checks.
- Zorvik:Developers and QA engineers needing offline, multi-protocol API tooling
- Pricing
- Settlens:Contact sales
- Zorvik:Free
- Open source
- Settlens:Yes, 0 GitHub stars
- Zorvik:Yes, 2 GitHub stars
- Works with
- Settlens:Node.js, HTTP API, MCP server
- Zorvik:HTTP/1.1, HTTP/2, HTTP/3, GraphQL, gRPC, WebSocket, Socket.IO, Server-Sent Events
Settlens features
- Passive endpoint scan. Scans 402 handshakes and payment requirements without making any payment.
- CI gate integration. Fails pull-request jobs based on configurable severity thresholds via a GitHub Action.
- Monitoring & regression detection. Compares scans to baselines, alerts on drifts and regressions, and can post webhooks.
- Signed evidence attestation. Attests reports with an ed25519 signature and timestamp for offline verification.
- Offline signature verification. Verifies EVM and Solana payment signatures without needing RPC calls.
- MCP preflight API. Agents call evaluate_payment_requirements to get pay, review or do_not_pay decisions.
Zorvik features
- Multi-protocol support. Handles HTTP/1-3, GraphQL, gRPC, WebSocket, Socket.IO, SSE, MQTT, TCP, UDP and DNS in one app.
- Mock server & routes. Create mock endpoints with params, delays, faults, CORS and forwarding.
- Load testing. Run virtual-user or arrival-rate load tests with configurable thresholds.
- MCP testing for AI agents. Test and mock MCP servers that AI agents use, with schema validation.
- Plain-file workspaces. All requests and configs are stored as readable YAML files in Git-friendly folders.
- CLI for CI/CD. Command-line tools (zorvik run, load, serve, mcp) integrate with pipelines and generate JUnit reports.
- Network inspector tools. Built-in TLS inspector, DNS lookup, port check, ping and encoders for Base64, JWT, hashes.
- Built-in learning bootcamp. Interactive lessons and labs teach API concepts and testing within the app.
Settlens vs Zorvik FAQ
Is Settlens or Zorvik free?+
Zorvik is free.
Is Settlens or Zorvik open source?+
Yes, both are open source: Settlens (Pazificateur69/settlens on GitHub) and Zorvik (LibreGuild/zorvik on GitHub, Apache-2.0 license).
Do Settlens and Zorvik integrate with the same tools?+
Their integration lists don't overlap: Settlens lists Node.js, HTTP API and MCP server; Zorvik lists HTTP/1.1, HTTP/2, HTTP/3, GraphQL and 10 more.
On DevHunt
Based on each tool's website and DevHunt data. Details may change; check the official sites.