https://socket.help/blog/ Practical guides for testing webhooks, mocking APIs, sharing files, and everyday developer tasks. en https://socket.help/blog/debug-http-clients-with-an-echo-endpoint/ https://socket.help/blog/debug-http-clients-with-an-echo-endpoint/ HTTP debugging Tue, 27 Oct 2026 00:00:00 GMT See the method, query, headers and body your HTTP client actually sends, with a private temporary echo URL and a readable request preview. https://socket.help/blog/stateful-crud-mocks-for-frontend-testing/ https://socket.help/blog/stateful-crud-mocks-for-frontend-testing/ API testing Tue, 27 Oct 2026 00:00:00 GMT Create realistic test records, exercise create and edit flows, restore seed data, and share a temporary CRUD API with clear access and lifecycle controls. https://socket.help/blog/reusable-api-test-scenarios/ https://socket.help/blog/reusable-api-test-scenarios/ API testing Tue, 27 Oct 2026 00:00:00 GMT Turn a few manual API requests into a repeatable scenario with response checks, captured IDs, separate secrets and a readable report you can export. https://socket.help/blog/format-and-validate-json-without-uploading/ https://socket.help/blog/format-and-validate-json-without-uploading/ Validation basics Tue, 27 Oct 2026 00:00:00 GMT Paste JSON into a formatter that runs in your browser, so nothing is uploaded. Learn what validation catches, why big numbers change, and how to script it. https://socket.help/blog/decode-jwt-safely/ https://socket.help/blog/decode-jwt-safely/ API development Tue, 27 Oct 2026 00:00:00 GMT Decode a JWT locally to read its header and claims, then verify it in your own code. Decoding shows what a token says; only verification proves who issued it. https://socket.help/blog/test-ai-agent-tool-calls-with-mock-mcp-server/ https://socket.help/blog/test-ai-agent-tool-calls-with-mock-mcp-server/ AI & MCP Tue, 27 Oct 2026 00:00:00 GMT Point your agent at a temporary MCP server with fixed tools and static replies, then check how it calls tools, handles bad arguments, and recovers from errors. https://socket.help/blog/share-a-file-from-the-terminal-with-a-one-time-link/ https://socket.help/blog/share-a-file-from-the-terminal-with-a-one-time-link/ Files & access Tue, 27 Oct 2026 00:00:00 GMT Upload a file with curl or the socket-help CLI, limit it to one download, and send the token separately. The contents are removed once that download happens. https://socket.help/blog/test-http-retries-backoff-and-timeouts/ https://socket.help/blog/test-http-retries-backoff-and-timeouts/ Integration testing Tue, 27 Oct 2026 00:00:00 GMT Create a mock endpoint that returns 429 with Retry-After, 503, or a slow reply, then confirm your client backs off, gives up, and times out the way you expect. https://socket.help/blog/generate-images-and-avatars-for-real-layouts/ https://socket.help/blog/generate-images-and-avatars-for-real-layouts/ Images & design Tue, 27 Oct 2026 00:00:00 GMT Choose dimensions, styles, palettes and deterministic variations, then export editable SVG or raster PNG for your layout and test data. https://socket.help/blog/compose-custom-audio-without-samples/ https://socket.help/blog/compose-custom-audio-without-samples/ Audio & music Mon, 26 Oct 2026 00:00:00 GMT Build an editable arrangement, balance its instruments, understand the export format and reproduce the result through the socket.help API. https://socket.help/blog/free-music-streaming-cc0-explained/ https://socket.help/blog/free-music-streaming-cc0-explained/ Audio & music Mon, 26 Oct 2026 00:00:00 GMT Stream original instrumentals, download editable WAV loops, use byte-range playback and understand the scope of the built-in tracks’ CC0 terms. https://socket.help/blog/credit-card-generator-for-testing/ https://socket.help/blog/credit-card-generator-for-testing/ Payment testing Mon, 26 Oct 2026 00:00:00 GMT Create clearly labeled credit-card fixtures for checkout tests. Understand sandbox numbers, sample CVCs, PaymentMethod identifiers, and checksum limits. https://socket.help/blog/debit-card-generator-for-checkout-tests/ https://socket.help/blog/debit-card-generator-for-checkout-tests/ Payment testing Mon, 26 Oct 2026 00:00:00 GMT Generate debit-card sandbox fixtures, preserve the funding label in tests, and check your checkout without using real banking details. https://socket.help/blog/prepaid-card-test-fixtures/ https://socket.help/blog/prepaid-card-test-fixtures/ Payment testing Mon, 26 Oct 2026 00:00:00 GMT Create a prepaid sandbox fixture and test funding-aware UI. Understand reusable numbers, provider-specific behavior, and what the generator does not simulate. https://socket.help/blog/card-number-validation-luhn/ https://socket.help/blog/card-number-validation-luhn/ Validation basics Mon, 26 Oct 2026 00:00:00 GMT Understand card-number checksum validation, test valid and invalid inputs, and avoid treating a passing Luhn check as proof of a real or usable payment card. https://socket.help/blog/test-webhooks-without-a-server/ https://socket.help/blog/test-webhooks-without-a-server/ Integration testing Sun, 25 Oct 2026 00:00:00 GMT Capture a test callback, inspect its real payload, and debug delivery without deploying a receiver or exposing localhost. https://socket.help/blog/public-vs-private-file-sharing/ https://socket.help/blog/public-vs-private-file-sharing/ Files & access Sun, 25 Oct 2026 00:00:00 GMT Choose the right access for a temporary file, keep tokens out of links, and understand one-time downloads, previews, and expiry. https://socket.help/blog/mock-api-error-responses/ https://socket.help/blog/mock-api-error-responses/ API development Sun, 25 Oct 2026 00:00:00 GMT Use predictable mock responses to test loading states, validation errors, server failures, and delays without depending on a live upstream API.