The directory of tools for agents

ADEXTERNAL

AdCrunch

Ask AI about your ads — query Meta, TikTok, and Google Ads performance in natural language.

MCP

Listing info 65/100

Price not supplied by publisherIndexed

ADEXTERNAL

adctx

Is this x402 seller actually paid? Give a payTo address, get its verdict from our own read of Base: paid, single-payer, self-funded, dust-only or silent, with the numb…

APIx402

Listing info 80/100

0.05 USDC / call (eip155:8453)Indexed

ADEXTERNAL

Add a duration to a date

Add an ISO 8601 duration to a start date or date-time and return the resulting UTC instant. Calendar-aware: months and years honor month lengths (e.g. Jan 31 + P1M cla…

APIx402

Listing info 80/100

0.002 USDC / call (eip155:8453)Indexed

ADEXTERNAL

AddCal

Publish public calendars and events others subscribe to: RSVPs, feeds and add-to-calendar links.

MCP

Listing info 75/100

Price not supplied by publisherIndexed

ADEXTERNAL

Additive Atlas

Food additive regulations of Japan, the EU and the US, side by side, with sources (free tier).

MCP

Listing info 75/100

Price not supplied by publisherIndexed

ADEXTERNAL

Additive Atlas

One substance, with the cross-axis derivation: what every other jurisdiction (JP, EU, US, Codex, IARC, JECFA, EFSA) says about it, with per-cell sources, kept separate…

APIx402

Listing info 80/100

0.01 USDC / call (eip155:8453)Indexed

ADEXTERNAL

Additive Atlas

Find the additives named on a food label and return, for each, the cross-axis derivation across jurisdictions

APIx402

Listing info 80/100

0.01 USDC / call (eip155:8453)Indexed

ADEXTERNAL

address

MCP server for Verus addresses — generate, validate, list transparent and shielded addresses

MCP

Listing info 65/100

Price not supplied by publisherIndexed

ADEXTERNAL

Address Check

Structural address check: country, street, city, and postal pattern for common countries (TR, US, GB, DE, FR, NL, …). Returns a normalised single-line form and named i…

APIx402

Listing info 80/100

0.002 USDC / call (eip155:8453)Indexed

ADEXTERNAL

Address checksum and validation

Validates an EVM address and returns it in EIP-55 mixed-case checksum form. Catches typos before you send funds: an address that fails the checksum is almost always mi…

APIx402

Listing info 80/100

0.005 USDC / call (eip155:8453); 5000 atomic units of 0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359 (eip155:137); 5000 atomic units of 0xaf88d065e77c8cC2239327C5EDb3A432268e5831 (eip155:42161)Indexed

ADEXTERNAL

Address Intelligence

EOA vs contract, ETH + USDC balance, transaction count and activity level — straight from Base RPC. Useful for counterparty and wallet checks.

APIx402

Listing info 80/100

0.02 USDC / call (eip155:8453)Indexed

ADEXTERNAL

Address Nonce

🆕 The next nonce for any Base address, plus its ETH balance and whether it is a contract. The count means different things either side of that line — transactions sen…

APIx402

Listing info 80/100

0.002 USDC / call (eip155:8453)Indexed

Indexed listings, not certifications. Prices and protocols are publisher declarations. How the index works