ClearTrace
Blockchain
Cross-frontend DEX attribution and execution quality data across Ethereum and L2s
Helium is a global, distributed network of Hotspots that create public, long-range wireless coverage
Verified today: 100% uptime
API key
Not required
HTTPS
Supported
Browser calls
Yes, CORS enabled
Status
Live · 100/100
Helium provides programmatic access to helium is a global, distributed network of hotspots that create public, long-range wireless coverage. Delivered over secure HTTPS protocols, it exposes structured endpoints designed to integrate cleanly into modern frontend frameworks, backend microservices, and automated data pipelines without requiring local database provisioning.
Engineers building web dashboards, mobile applications, CLI utilities, or background cron workers in need of reliable blockchain data feeds.
Consuming Helium removes the operational overhead of running custom scrapers, orchestrating headless browser fleets, or manually seeding and maintaining a local database. Instead of reverse-engineering volatile DOM layouts or dealing with anti-bot IP blocks, your application connects directly to a standardized JSON interface that supports client-side browser execution out of the box. Zero-authentication access allows rapid prototyping and zero-credential static deployments.
Last checked 2026-10-24. Measured independently, not self-reported by the provider.
Practical real-world patterns for integrating Helium into software systems.
Augment user submissions or catalog items with metadata, tagging, summaries, or vector analysis.
Power real-time conversational flows, prompt engineering experiments, or automated customer support triage.
Classify incoming customer feedback, support tickets, or error logs to detect customer sentiment trends.
Production-ready starting templates with error handling for Helium.
// No authentication required.
// Modern native fetch with error handling
async function callApi() {
try {
const response = await fetch('https://docs.helium.com/api/v1/resource', {
method: 'GET',
headers: { Accept: 'application/json' },
});
if (!response.ok) {
throw new Error(`HTTP ${response.status}: ${response.statusText}`);
}
const data = await response.json();
console.log('Response payload:', data);
return data;
} catch (error) {
console.error('API request failed:', error);
throw error;
}
}
// callApi();Inspect the expected JSON structure returned by Helium or execute a real-time live probe directly in your browser.
Authentic sample payload structure to evaluate schema attributes before integration.
{
"id": "gen-hax64da",
"model": "standard-v1",
"choices": [
{
"index": 0,
"message": {
"role": "assistant",
"content": "Processed output generated successfully from input prompt."
},
"finish_reason": "stop"
}
],
"usage": {
"prompt_tokens": 18,
"completion_tokens": 12,
"total_tokens": 30
}
}Technical factors to keep in mind when integrating Helium into production environments.
Avoid triggering rate limits on public feeds by caching response payloads in Redis, Vercel KV, or standard HTTP Cache-Control headers with a 5-to-15 minute TTL.
While no API key is required, public keyless pools often share global rate limits. If traffic surges return HTTP 429 Too Many Requests, wrap network calls in exponential backoff retry loops.
CORS headers are validated and present on responses. You can safely call this endpoint directly from frontend React, Vue, or static HTML pages without an intermediary proxy server.
Always inspect response.ok before executing response.json(). Upstream services returning 4xx or 502 Bad Gateway often serve HTML error pages, which cause syntax errors when parsed as JSON.
Aggregated from one public source (public-apis), then normalised and checked by us.
Report an issue with this listing ↗Blockchain
Cross-frontend DEX attribution and execution quality data across Ethereum and L2s
Blockchain
Blockchain-based blogging and social media website
Blockchain
Build hybrid smart contracts with Chainlink
Blockchain
Chainpoint is a global network for anchoring data to the Bitcoin blockchain
Blockchain
Bilingual Web3 lessons, glossary search and role-based learning paths
Blockchain
Solana on-chain agent trust scoring via MCP; 4 free tools to score, resolve and verify AI agent wallets
Answered from what our own scheduled checks found, not from the provider's marketing.
Helium is listed in our free catalogue and required no credential when we called it. It needs no authentication at all, so you can send a request without signing up. Free tiers can still carry rate limits or non-commercial terms, so check the provider's own terms before shipping.
No. We called Helium on 2026-10-24 with no key, no token and no Authorization header, and it responded. That is what puts it in our no-key collection.
Yes. Helium returned CORS headers when we checked it, so a browser will let your page read the response. You can fetch it directly from client-side JavaScript with no proxy and no backend.
Yes, as of 2026-10-24. Our automated check reached Helium and recorded a 100% reliability score with a median response time of 2989 ms. We re-check on a schedule, and this page updates with the result.
Yes. Helium serves over HTTPS, so you can call it from a secure page without triggering a mixed-content block.