The directory of tools for agents

X4EXTERNAL

x402-endpoints

x402 paid API tools for AI agents on Base: EU/global registries, crypto, wallet & agent trust.

MCP

Listing info 65/100

Price not supplied by publisherIndexed

AGEXTERNAL

AgentTools

Check whether a domain name is registered or available, via the official RDAP registry protocol (404 = available). For registered domains it also returns the registrar…

APIx402

Listing info 80/100

0.003 USDC / call (eip155:8453)Indexed

APEXTERNAL

api.craigmbrown.com · /v1/services/content.youtube-research

Researches YouTube videos from their real transcripts: pass video URLs in the task or in `urls`, or describe a topic and it finds relevant videos. Returns what you ask…

APIx402

Listing info 80/100

0.03 USDC / call (eip155:8453)Indexed

47EXTERNAL

47620 Crypto Market Data API

Perpetual-futures context for a coin: last funding rate (and %), mark vs index price, next funding time, and open interest (base + USD). The signal a derivatives/tradi…

APIx402

Listing info 80/100

5000 atomic units of EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp); 0.005 USDC / call (eip155:8453); 5000 atomic units of 0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359 (eip155:137)Indexed

APEXTERNAL

API Acre

Convert and extract a public website URL into clean Markdown or readable text plus bounded structured links, canonical and heading signals, Schema.org types, redirect …

APIx402

Listing info 80/100

0.01 USDC / call (eip155:8453); 10000 atomic units of EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp)Indexed

40EXTERNAL

402.com.tr · /api/x402/approval-advisor

Ranks a wallet's active token approvals by USD-at-risk x unlimited-allowance x unlabelled-spender, and returns a prioritised revoke queue. Approvals are the #1 drain v…

APIx402

Listing info 80/100

0.05 USDC / call (eip155:8453)Indexed

APEXTERNAL

api.xynaptic.io · /v1/flight-route-risk

Xynaptic Flight Route Risk — real-time risk assessment of an air route (departure/arrival ICAO): weather at both airports, recent aviation events, regional traffic den…

APIx402

Listing info 80/100

0.1 USDC / call (eip155:8453); 100000 atomic units of EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v (solana); 100000 atomic units of 0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359 (eip155:137)Indexed

LAEXTERNAL

lab.paidapis.net · /api/subscriptions/register

Register a subscription (yours or one you manage for another agent) for renewal-reminder tracking. Bookkeeping only — no auto-renewal, no custody, this server never pa…

APIx402

Listing info 80/100

0.01 USDC / call (eip155:8453)Indexed

PAEXTERNAL

pay.brianbooms.com · /api/v1/data/joke

Use when an agent or user wants a clean original joke — family-friendly humor from the Synthetic Universe. Pure compute, no upstream. Optional session id avoids repeat…

APIx402

Listing info 80/100

0.01 USDC / call (eip155:8453); 10000 atomic units of 0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359 (eip155:137); 10000 atomic units of 0xaf88d065e77c8cC2239327C5EDb3A432268e5831 (eip155:42161); 10000 atomic units of 0xB97EF9Ef8734C71904D8002F8b6Bc66Dd9c48a6E (eip155:43114); 10000 atomic units of EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v (solana:5eykt4UsFv8P8NJdTREpYbfj1W7N2H4)Indexed

X4EXTERNAL

x402engine.app · /api/llm/glm-5.3-flash

x402engine — GLM-5.3-Flash is a native multimodal model from Z.ai. It is suited for efficient coding and long-horizon agent tasks. Its hybrid sparse and linear attenti…

APIx402

Listing info 80/100

0.003237 USDC / call (eip155:8453); 3237000000000000 atomic units of 0xFAfDdbb3FC7688494971a79cc65DCa3EF82079E7 (eip155:4326); 3237 atomic units of EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp)Indexed

OBEXTERNAL

Oblique Markets

Use when an agent needs x402 receipt lookup. Returns Fetch a previously issued settlement-verify receipt by verification_id: returns the stored on-chain verification r…

APIx402

Listing info 80/100

0.002 USDC / call (eip155:8453); 2000 atomic units of EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp)Indexed

OBEXTERNAL

Oblique Markets

Use when an agent needs chat completion. Returns One bounded chat completion (standard messages request shape) per paid call, with no account to open and no provider k…

APIx402

Listing info 80/100

0.01 USDC / call (eip155:8453); 10000 atomic units of EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp)Indexed

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