Step 1 of 5 — ~2 minutes
Get your API key.
You're almost running.
Paste your API key below. It travels with you through all 5 steps and pre-fills every code example automatically.
What you get
40 APIs, one key
Every Yantrix API accepts the same
X-API-Key header. No separate auth per service.Gateway covers payment
During your 6-month trial, the Gateway pays x402 on your behalf. You just call & receive.
Signed responses
Every response includes a
_trust envelope. Cryptographic proof from OpenProof.Or use MCP (for Claude, Cursor, etc.)
TERMINAL
# Install MCP — gives you 71 tools in any agent framework
npx @yantrixai/mcp
# Or add to your claude_desktop_config.json:
{
"mcpServers": {
"yantrix": {
"command": "npx",
"args": ["@yantrixai/mcp"],
"env": { "YANTRIX_API_KEY": "ytx_..." }
}
}
}
Takes ~3 minutes
Step 2 of 5 — ~3 minutes
Your first API call.
IFSC lookup.
IFSC code → bank branch data. Clean JSON, signed response, quota tracked. This is the pattern every Yantrix call follows.
Try it — click run
BASH / CURL
# IFSC lookup — bank branch from IFSC code
curl https://gateway.yantrix.ai/proxy/ifsc/ifsc/HDFC0000001 \
-H "X-API-Key: ytx_..."
The _trust envelope
Every response includes a cryptographically signed
_trust block. Signer address, payload hash, timestamp. Verifiable on-chain via OpenProof. No competitor does this.What just happened
1. X-API-Key → Gateway checks quota & offer
2. Gateway pays $0.002 USDC on Base via x402
3. IFSC service returns structured data
4. OpenProof signer 0xdb9B33... signs the response
✓ 200 OK + _trust envelope → your agent
Cost to you
$0.000 — Gateway covered it. Your trial is active.
Settlement
$0.002 USDC moved on Base mainnet in <1s. EIP-3009.
Proof
_trust envelope. Signed by 0xdb9B33... Step 3 of 5 — ~3 minutes
Try a second capability.
Different category.
Same pattern, different domain. Pick one to run — this is how you understand the network.
GST Lookup
GSTIN → company, address, filing status
Finance · India
Ground Truth
Verify a claim with AI confidence score
Intelligence · AI
Pincode Lookup
PIN → district, state, post offices
Geo · India
BASH / CURL
# GST Lookup — GSTIN to company data
curl https://gateway.yantrix.ai/proxy/gst/gst/27AAPFU0939F1ZV \
-H "X-API-Key: ytx_..."
Pattern recognised
gateway.yantrix.ai/proxy/{service}/{path} — every API follows this.
Swap the service name, keep the key. That's the whole integration.
Step 4 of 5 — ~4 minutes
Chain calls into
a task.
A task is a named multi-step workflow. Plan it, run it, poll status. This is what turns API calls into agent operations.
1
Verify company exists
gst_lookup · $0.003
pending
2
Get director details
mca21_lookup · $0.005
pending
3
Verify phone number
phone_validator · $0.002
pending
BASH / CURL — Plan + Execute
# Step 1: Plan the task
curl -X POST https://relay.yantrix.ai/v1/relay/task/plan \
-H "X-Agent-ID: my-agent" \
-H "Content-Type: application/json" \
-d '{
"name": "company_due_diligence",
"steps": [
{"step": "verify_gst", "capability": "gst_lookup", "params": {"gstin": "27AAPFU0939F1ZV"}},
{"step": "get_directors", "capability": "mca21_lookup", "params": {"cin": "L17110MH1973PLC019786"}, "depends_on": "verify_gst"},
{"step": "verify_phone", "capability": "phone_validate", "params": {"phone": "+919876543210"}}
]
}'
This is an agent operation
You just moved from "calling an API" to "running a business workflow". The agent discovers capabilities, chains them with dependencies, and Relay executes each step automatically.
You're operational.
You've made real API calls, seen OpenProof signatures, and run a multi-step agent task. That's the full Yantrix pattern.
Your quota, savings, and history are in the console.