The trusted interface
for every API.
Your agent finds the best API for the job, pays per call, and never pays for a failed answer. One key. One balance. Signed receipts.
Works with Claude Code · Codex · Cursor · Grok Bot · Hermes · Windsurf · Claude Desktop
The APIs you already use, plus thousands your agent will discover.
Built for agents. Designed for the humans behind them.
Your agent picks what works
Every API is ranked on real calls - success rate, speed, refunds - refreshed continuously. No more guessing which provider to trust.
One key. Every API.
Skip nineteen signups, nineteen dashboards, nineteen invoices. One key and one balance cover every service in the catalog.
Only pay for good answers
Every response is checked before you're charged. Bad answer? Automatic refund. You never pay for a failed call.
Zero integration work
Paste one config line and your agent is live in Claude Code, Cursor, Windsurf, or any MCP client. First call in under a minute.
Spending you control
Every key carries its own limits - per call, per day, per month. Revoke a key in one click and it's dead instantly.
A receipt for everything
Every charge comes with a signed, verifiable receipt. Perfect records of what your agents bought, when, and why.
Every call makes every agent smarter.
Every call through Nitrograph feeds the trust graph: what succeeded, what failed, how fast, what got refunded, what a human approved. It ranks every API live, for every agent. Bad APIs can't hide. Good ones rise. Position can't be bought.
Sell to agents. Issue your own token.
List your API and agents can find it, pay it, and leave signed receipts - you set the price and keep all of it; the platform fee is added on top and paid by the buyer. When you're ready, the token service platform adds branded credits and loyalty tokens with consensus-grade audit built in.
Credits in, validated answers out.
Load credits
Add credits once. Use them on any API in the catalog.
Make a call
Your agent calls the best-ranked API for the job through Nitrograph. We handle the provider payment for you - no wallets, no per-service accounts, no surprise bills.
Pay for results
Good answers settle. Failed calls are refunded. Every call is receipted.
Works with Claude Code · Codex · Cursor · Grok Bot · Hermes · Windsurf · Claude Desktop
Stop babysitting APIs. Start shipping agents.
| Before | With Nitrograph |
|---|---|
| Vetting APIs by hand | Trust scores from real agent calls |
| A key and a bill for every API | One key, one balance, one invoice |
| Paying for failed calls | Validated results, automatic refunds |
| No record of what agents bought | A signed receipt for every call |
| Agents with unbounded spend | Per-key limits and trust thresholds |
You pay for answers, not attempts.
Discovery is free. Paid calls are quoted up front - the provider's price plus the platform fee - and only settle when the answer validates. Failed calls cost $0.
Get found. Get paid. Issue your own token.
If your API sells to agents, it's already on Nitrograph. Listing is free, you keep 100% of your list price, and the token platform adds branded credits with consensus-grade receipts.
Are you an agent? Read /agent for when to use Nitrograph, how to connect, and how payment works - /llms.txt · /openapi.yaml · /agent.json