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The directory of tools for agents

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EXTERNAL

Read-Only EVM Contract Call

Execute one bounded eth_call against Base, Ethereum, or Arbitrum and return raw deterministic call data without signing or broadcasting.

APIx402

Listing info 80/100

0.002 USDC / call (eip155:8453)Indexed
EXTERNAL

Relaystation Schema Infer

$0.0002/MB. Infer a JSON Schema or SQL DDL straight from your data — skip hand-writing schemas. 1¢ x402 min; remainder auto-credits — relaystation.ai/penny

APIx402

Listing info 80/100

0.01 USDC / call (eip155:8453); 10000 atomic units of 0x60a3E35Cc302bFA44Cb288Bc5a4F316Fdb1adb42 (eip155:8453)Indexed
EXTERNAL

Saylor Innovations Data Desk

One-way ANOVA across 2 to 10 groups - F statistic, degrees of freedom, p-value, eta and omega squared, effect size, group means and a plain-language verdict

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 EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp); 10000 atomic units of Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp); 90602 atomic units of So11111111111111111111111111111111111111112 (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp)Indexed
EXTERNAL

Saylor Innovations Data Desk

Check a top-level domain against the IANA root zone - exists or not, ccTLD, gTLD or IDN type, RDAP server URLs and the current TLD count

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 EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp); 10000 atomic units of Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp); 91139 atomic units of So11111111111111111111111111111111111111112 (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp)Indexed
EXTERNAL

Saylor Innovations Data Desk

Latest Formula 1 session from OpenF1 - circuit, session type and time, the 22 drivers with teams, the running order or final classification and the podium

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 EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp); 10000 atomic units of Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp); 91863 atomic units of So11111111111111111111111111111111111111112 (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp)Indexed
EXTERNAL

Saylor Innovations Data Desk

Decode a UUID - version, variant, and the embedded timestamp and node for v1, v6 and v7, plus nil and max detection and URN, braced and bare formats

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 EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp); 10000 atomic units of Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp); 92742 atomic units of So11111111111111111111111111111111111111112 (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp)Indexed
EXTERNAL

Saylor Innovations Data Desk

MIME type lookup from mime-db - content type for a file extension, extensions for a type, charset, compressibility and IANA source, or search by term

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 EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp); 10000 atomic units of Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp); 90968 atomic units of So11111111111111111111111111111111111111112 (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp)Indexed
EXTERNAL

Saylor Innovations Data Desk

Semantic version tools - compare two versions, check a version against an npm-style range such as ^1.2.0 or ~2.1, and compute the bumped next version

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 EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp); 10000 atomic units of Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp); 93143 atomic units of So11111111111111111111111111111111111111112 (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp)Indexed
EXTERNAL

Saylor Innovations Data Desk

Convert coordinates to an Open Location Code plus code with the short-code hint, or decode a full plus code into its cell centre and size

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 EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp); 10000 atomic units of Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp); 92275 atomic units of So11111111111111111111111111111111111111112 (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp)Indexed
EXTERNAL

Saylor Innovations Data Desk

Maximum home price and loan from income, debts, down payment and rate using the 28/36 rules, with tax, insurance and HOA in the monthly total

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 EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp); 10000 atomic units of Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp); 92231 atomic units of So11111111111111111111111111111111111111112 (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp)Indexed
EXTERNAL

Saylor Innovations Data Desk

Molar mass of a chemical formula with brackets and hydrates - g/mol, Hill formula, atom counts, mass percent per element and moles from a sample in grams

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 EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp); 10000 atomic units of Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp); 90857 atomic units of So11111111111111111111111111111111111111112 (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp)Indexed
EXTERNAL

Saylor Innovations Data Desk

Infer a JSON Schema from a sample JSON document - types, nested objects and arrays, required fields and string formats like email, date, uri and uuid

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 EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp); 10000 atomic units of Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp); 91431 atomic units of So11111111111111111111111111111111111111112 (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp)Indexed

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