ToolPipe / Free Developer API (No Signup)
130+ API endpoints you can call right now. No registration, no API key, no credit card, no email verification. Open your terminal and start.
curl https://toolpipe.dev/uuid/generateThat's it. You just used a free API with no signup. No account created, no key needed.
curl https://toolpipe.dev/uuid/generatecurl -X POST https://toolpipe.dev/json/format \
-H "Content-Type: application/json" \
-d '{"json_string": "{\"name\":\"John\",\"age\":30}"}'curl -X POST https://toolpipe.dev/hash/generate \
-d '{"text": "hello world", "algorithm": "sha256"}'curl "https://toolpipe.dev/dns/lookup?domain=example.com"curl "https://toolpipe.dev/qr/generate?text=https://example.com" -o qr.pngcurl -X POST https://toolpipe.dev/base64/encode \
-d '{"text": "Hello World"}'curl -X POST https://toolpipe.dev/jwt/decode \
-d '{"token": "eyJhbGciOiJIUzI1NiIs..."}'curl -X POST https://toolpipe.dev/regex/test \
-d '{"pattern": "\\d+", "text": "abc 123 def 456"}'JSON/YAML/XML/CSV/Base64/URL conversions. Format, validate, transform.
Hash, HMAC, UUID, password gen, JWT, encryption utilities.
DNS, WHOIS, IP lookup, SSL check, HTTP headers, ping.
Regex, SQL format, CSS/JS/HTML minify, diff, beautify.
Word count, Markdown, case convert, slug, lorem ipsum.
PDF merge/split, QR code, image tools, favicon gen.
Unit convert, base convert, color convert, CIDR calc.
Cron parse, .env parse, timestamp, HTTP status codes.
Most "free" APIs still require creating an account, verifying email, generating a key, and reading 10 pages of docs before making your first call. ToolPipe: just curl the endpoint. Done.
100 calls per day on the free tier. No sudden 429 errors after 5 requests. No hidden limits. If you need more, get a free API key for 1,000 calls/day.
curl, Python requests, JavaScript fetch, Go http, Rust reqwest, PHP curl, Ruby net/http, Java HttpClient. If it speaks HTTP, it works.
Building a weekend project or hackathon entry? Don't waste time signing up for 5 different APIs. ToolPipe has all the utility endpoints you need in one place.
Use in GitHub Actions, GitLab CI, or any pipeline. No secrets to manage for the free tier. JSON validation, hash verification, and config conversion as build steps.
The free tier (no signup) gives you 100 calls/day. If you want more:
1,000 calls/day. Quick email registration.
10,000 calls/day. Priority support.
Unlimited calls. Custom SLA.