Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add rezearcher/x402-data-api --skill bankr-skillgit clone --depth 1 https://github.com/rezearcher/x402-data-apiWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/rezearcher/x402-data-api/bankr-skill)<a href="https://agentmods.dev/skills/rezearcher/x402-data-api/bankr-skill"><img src="https://agentmods.dev/badge/skills/rezearcher/x402-data-api/bankr-skill/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/rezearcher/x402-data-api/bankr-skill"><img src="https://agentmods.dev/badge/skills/rezearcher/x402-data-api/bankr-skill.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00170 | $0.01003 |
| Opus 5.5 | $0.00068 | $0.00401 |
| Sonnet 5.5 | $0.00034 | $0.00201 |
| Haiku 4.5 | $0.00017 | $0.00100 |
Grade A, and why
grey-ridge-x402 scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
curl -s "$B/gate/swap/preview?token=weth" How it starts
The opening of the file, as written. The whole thing — 60 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Grey Ridge Signals — Base pre-trade gate + onchain data (x402)
Base URL: https://x402-data-api.sigrunner.workers.dev
Payment: x402, USDC on Base (eip155:8453, scheme exact). No account, no API key. Every route has a free /preview variant (same response shape) so you can test with no wallet.
Catalog: /.well-known/x402 · Docs: /llms.txt · MCP server: /mcp
Endpoints
| Endpoint | Price | What it returns |
|---|---|---|
GET /gate/swap?token=0x..&side=buy¬ional_usd=100 |
$0.008 | go / hold / block decision for swapping a Base ERC-20: live honeypot sell simulation, liquidity vs. size, proxy and tax risk |
GET /chain/token-report?token=0x.. |
$0.01 | Full SAFE / CAUTION / AVOID report: honeypot sim, proxy/upgrade risk, mutable tax, mint/pause/blacklist authorities, ownership, liquidity |
GET /chain/token-security?token=0x.. |
$0.009 | Lighter clear / review / block check with risk score and flags |
GET /chain/wallet?address=0x.. |
$0.003 | ETH + token balances in one call, USD-priced |
GET /chain/gas-price |
$0.01 | EIP-1559 fees plus USD cost |
GET /crypto/funding |
$0.004 | Cross-venue perp funding-rate spread |
GET /defi/yields |
$0.001 | DeFi yields, risk-adjusted |
GET /pm/markets?q=.. |
$0.005 | Live Polymarket markets with bid/ask/spread |
Full list (60+ routes, all $0.001–$0.05): GET /.well-known/x402.
Try it free (no wallet)
B=https://x402-data-api.sigrunner.workers.dev
curl -s "$B/gate/swap/preview?token=weth"
curl -s "$B/chain/token-report/preview?token=aero" # also usdc, cbbtc, degen, or any 0x address
Call it with a paying client
import { wrapFetchWithPayment } from "@x402/fetch";
// signer: any viem account holding a little USDC on Base
const pay = wrapFetchWithPayment(fetch, client);
const r = await pay(`${B}/gate/swap?token=0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913&side=buy¬ional_usd=100`);
console.log(await r.json()); // { decision: "go" | "hold" | "block", verdict, risk_score, flags, ... }
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 2d ago First seen · 60 lines · 170 tokens per session scan A 82a0532b75e1
grey-ridge-x402 is a skill published in the GitHub repository rezearcher/x402-data-api (0 stars, last pushed yesterday), licensed MIT. It adds 170 tokens to every session and 1,003 once invoked, about $0.0007 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-10-20.
Other skills, from other repositories
CTRL
Build on-chain automation on Base via CTRL - DCA, price-gated swaps, launchpad sniping, or whale-follow that run autonomously after one EIP-5792 wallet signature, bounded by preset caps.
pantheon-staking
Stake creator coins into Pantheon vaults on Base and Robinhood Chain, view staking positions, and claim monthly rewards. Use when the user mentions Pantheon, pantheonvaults, staking a creator coin for yield, or checking/claiming Pantheon vault rewards.
delu-oracle
Full-cognition token analysis for Base EVM tokens via the deluagent oracle. Pass a CA or cashtag, get back a flat decision header (action, conviction, entry/stop/size, read) plus full cognition report. Tiered x402 pricing — 100M+ DELU free, 50M+ 50k DELU, public 250k DELU. Sequential calls only.
aero-vote-radar
Decide where to point veAERO in Aerodrome's weekly vote on Base, and check what a vote already cast actually paid. Use when someone asks where to vote, which Aerodrome pool pays best per veAERO, what their veAERO is worth, what last week's vote earned, or wants a vote they can paste into Aerodrome's UI or sign…
base-agent-treasury
Use when building or advising on treasury management for an AI agent on Base mainnet. Covers when to hold USDC, when to use GBLIN treasury-backed index, when to use Morpho or Aave lending, and how to choose based on treasury size and revenue pattern.
jit-redemption-pattern
Use when an AI agent holds GBLIN and needs to convert a specific USDC amount for an outgoing payment. Covers the JIT (Just-In-Time) redemption pattern through the GBLIN Zap, cooldown timing, and how to use it inside x402 payment flows.