The directory of tools for agents

DEEXTERNAL

denpyo-mcp

Japanese invoice/receipt OCR + tax registration-number (T-number) verification, via x402.

MCP

Listing info 75/100

Price not supplied by publisherIndexed

NOEXTERNAL

Nose for Leads

Finds, filters, and verifies local-business leads; every email carries a verification receipt.

MCP

Listing info 75/100

Price not supplied by publisherIndexed

GBEXTERNAL

gblin.digital · /api/x402/seal

Call after your agent completes an action it may later have to prove: seal the hashes of its input and output (only your action label and meta are published) into GBLI…

APIx402

Listing info 80/100

0.0045 USDC / call (eip155:8453)Indexed

QUEXTERNAL

Quartermaster Payment Proof

Verify an x402 settlement on Base OR Solana: pass a 0x transaction hash or a base58 signature, confirm it succeeded, decode its USDC transfers (event logs on Base, net…

APIx402

Listing info 80/100

0.003 USDC / call (eip155:8453); 3000 atomic units of EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp)Indexed

AGEXTERNAL

Agent Verification Utility

A stateless synchronous A2A adapter that validates a prechecked paid intent, creates or reuses a quote bound to its receipt digest and spend policy, and returns exact …

A2A

Listing info 50/100

Price not supplied by publisherIndexed

APEXTERNAL

api.craigmbrown.com · /v1/services/trust.receipt-verify

Verify a BlindOracle receipt against the parts a buyer cannot check alone: is the proof_id really in BlindOracle's append-only proof rail, does its payload still hash …

APIx402

Listing info 80/100

0.01 USDC / call (eip155:8453)Indexed

AREXTERNAL

ari-mcp-py

Python MCP server: fair-price checks, leaderboards, Ed25519 receipt verification for x402/MPP.

MCP

Listing info 65/100

Price not supplied by publisherIndexed

AXEXTERNAL

Axiom Relay

Free agent-service discovery, OpenAPI document checks, and receipt verification. No API key needed.

MCP

Listing info 75/100

Price not supplied by publisherIndexed

OBEXTERNAL

Oblique Markets

Use when an agent needs settlement verify. Returns Real on-chain x402 settlement verification on Base mainnet: fetches the transaction receipt via JSON-RPC, decodes US…

APIx402

Listing info 80/100

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

FAEXTERNAL

fairseal-mcp-server

Verifiable entropy, provably-fair games, and receipt verification for AI agents (FairSeal API).

MCP

Listing info 75/100

Price not supplied by publisherIndexed

CYEXTERNAL

Cyre

Cyre Session Ticket — require a fresh Passport or Decision Receipt before your agent proceeds. Checks signature, expiry, max age, optional address + risk ceiling. Patt…

APIx402

Listing info 80/100

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

AGEXTERNAL

agentbit.app · /v1/jwt/decode

Decode a JSON Web Token (JWT) into its header and payload claims without signature verification. Inspect exp, iss, sub and custom claims.

APIx402

Listing info 80/100

0.0015 USDC / call (eip155:8453); 1500 atomic units of 0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359 (eip155:137); 1500 atomic units of 0xaf88d065e77c8cC2239327C5EDb3A432268e5831 (eip155:42161); 1500 atomic units of EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp); 1500 atomic units of 0x79A02482A880bCE3F13e09Da970dC34db4CD24d1 (eip155:480)Indexed

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