MARKET MONITOR / CATALOGUE Services 133,954 MCP listed 40,873 x402 93,162 Rails Base / Solana / Polygon / Arbitrum Imported 2026-11-01 · 3 sources
Task

Testing

14 services carry this tag in their source record. Tags come from the provider, not from us — a tag is a claim about what the service does, not proof that it does it well.

Saylor Code Verifier x402 REST usage

Run a public GitHub repo's test, lint or build script in a disposable microVM and return structured logs and the commit

saylorinnovations.com Dev & Code 1 calls / 30d checked 2026-11-01
0.25 USDC per call per call

badhttp x402 REST usage

badhttp /402/pay: a real x402 v2 paywall for testing clients. Pay 0.01 USDC on Base mainnet and get a 200 with a PAYMENT-RESPONSE receipt and the transaction hash. Nothing else is sold; sibling endpoints under /402 misbe...

badhttp.dev Crypto & Payments 7 calls / 30d checked 2026-11-01
0.01 USDC per call per call

Saylor Innovations Guide Library x402 REST usage

CUDA, driver and Ollama compatibility - GPU support, model memory fit and proof inference uses the GPU

saylorinnovations.com AI Models & Inference 6 calls / 30d checked 2026-11-01
0.01 USDC per call per call

x402 Checkup x402 REST usage

Checkup for x402 buyer clients. Pay once and get a field-by-field diagnosis of the payment your client signed (amount, recipient, validity window, clock offset, nonce, EIP-712 signature) and of the request that arrived,...

checkup.kagurazaka.dev Crypto & Payments 11 calls / 30d checked 2026-11-01
0.005 USDC per call per call

Ping, x402 payment test x402 REST usage

Ping, x402 payment test. A paid round-trip check: returns pong and the server time. Use to test that an x402 wallet, client or MCP setup can pay and receive a result.

agent-data-tools.revmesh2074.workers.dev Crypto & Payments 4 calls / 30d checked 2026-11-01
0.01 USDC per call per call

Echo a message x402 REST usage

Returns the message you send, with its length and the server time. Use to test an x402 client, payment flow or agent tool wiring end to end.

agent-data-tools.revmesh2074.workers.dev Crypto & Payments 3 calls / 30d checked 2026-11-01
0.01 USDC per call per call

Aether x402 REST usage

Wallet balance on Base: the native ETH balance of any address, read live from the chain. Input: address

aether-x402.vercel.app Crypto & Payments 30 calls / 30d checked 2026-11-01
0.001 USDC per call per call

TariffMonkee x402 REST usage

Health and payment-path check. Returns server time and confirms the x402 payment settled. The cheapest endpoint in the catalog at $0.001, intended for testing a client's payment flow.

tariffmonkee.com Crypto & Payments 23 calls / 30d checked 2026-11-01
0.001 USDC per call per call

Test a regular expression x402 REST usage

Test a regular expression against a text: every match with position, groups and named groups, plus the result of a substitution if you pass a replacement. Flags i, m, s, x. Time-limited, safe against catastrophic backtra...

api.vextorium.com Other services 6 calls / 30d checked 2026-10-28
0.003 USDC per call per call

AISkills402: Flaky Test Review x402 REST usage

Flaky Test Review — Reviews ONE test file for the five causes that make a test pass on one run and fail on the next, and lists only those, one line each with a fixed code, the test, why it flips and the fix - or exactly...

api.aiskills402.com Web & Scraping 1 calls / 30d checked 2026-11-01
0.01 USDC per call per call

Citiview Agent Market x402 REST usage

Breached password check: is this password in known data breaches, and how often? Send only the SHA-1 hash (never the password); just the first 5 characters reach Have I Been Pwned (k-anonymity). Up to 50 hashes per call.

agents.citiviewgroup.com Security 3 calls / 30d checked 2026-10-28
0.002 USDC per call per call

x402 Checkup x402 REST usage

Checkup for x402 buyer clients. Pay once and get a field-by-field diagnosis of the payment your client signed (amount, recipient, validity window, clock offset, nonce, EIP-712 signature) and of the request that arrived,...

26y54j5j9z6r6ctr.68r.lambda-web.us-east-1.on.aws Crypto & Payments 1 calls / 30d checked 2026-11-01
0.005 USDC per call per call

Wren x402 Doctor x402 REST usage

x402 test endpoint on Base mainnet. Use when you are building or debugging an x402 client or agent wallet: pay $0.001 USDC and get back what actually settled (network, asset, atomic amount, payTo, payer and transaction h...

wren-x402-doctor.wrenonbase.workers.dev Crypto & Payments 3 calls / 30d checked 2026-11-01
0.001 USDC per call per call

Eval case generate x402 REST

deterministic eval-case generator for agents: creates happy-path, ambiguous-input and adversarial-instruction cases from a goal.

relay402.georgespring.workers.dev Other services checked 2026-11-01
0.02 USDC per call per call

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