| Capture A Screenshot Of Any URL API Capture a screenshot of any URL — returns base64-encoded image, supports full-page capture | x402engine.app | - | $0.01 | listed |
| Car Complaint Records API Car complaint records: what real owners reported failing on a given year/make/model or VIN — component, narrative summary, crash/fire flags, injuries, and dates, newest first as structured JSON. Filter by component keyword to target a suspected problem area before buying or diagnosing. | forgemesh.io | - | $0.005 | listed |
| Car Recall Lookup API Car recall lookup: give a VIN or year/make/model and get every official safety recall campaign — component, defect summary, consequence, remedy, and urgent do-not-drive or park-outside flags — newest data as structured JSON. Check any used car before purchase or any fleet vehicle for open campaigns. | forgemesh.io | - | $0.005 | listed |
| Car Reliability Report API Car reliability report computed from the full official defect-complaint record: which components fail most on a given year/make/model, how often, and how severe (crashes, fires, injuries, deaths). Ranked structured JSON — compare two candidate used cars side by side before recommending either. | forgemesh.io | - | $0.01 | listed |
| Car Safety Ratings API Car safety star ratings from government crash testing: overall, front, side, and rollover ratings (1-5 stars) for any rated year/make/model or VIN, with per-seat breakdowns and rollover probability. Lists sibling variants (body styles, drivetrains) so agents can rate the exact configuration. Structured JSON. | forgemesh.io | - | $0.005 | listed |
| CarVector vehicle data — single API call CarVector vehicle data — single API call | carvector.io | - | $0.01 | listed |
| Carbon Capture API Converts area, sampling depth, bulk density and initial/final organic-carbon mass fractions into stock estimates and a gross CO2-equivalent difference. This is a simple stock-difference calculation; it does not establish additionality, permanence, leakage, sampling representativeness, credit eligibility or verified carbon removal. | halowerk.com | - | $0.003 | listed |
| Carbon Intensity API Returns carbon dioxide emissions for one or more countries on three bases at once: per inhabitant, per unit of purchasing-power-adjusted output, and in absolute megatonnes, each with its own period and its trend over the requested window. Keeping the three apart is the point. Per capita answers how heavily a person there burdens the climate; per unit of output answers how efficiently value is produced; absolute answers what actually reaches the atmosphere. | halowerk.com | - | $0.005 | listed |
| Card API Validate a credit card or payment card number and detect its brand. Checks the Luhn checksum and identifies Visa, Mastercard, Amex, Discover, Diners or JCB, returning the BIN and last four digits. Structural card number validation for checkout forms and fraud pre-checks (does not verify the card exists or has funds). | aventtech.com | - | $0.002 | listed |
| Card BIN Check Offline Issuer Identification Number check: accepts 6–8 digits only (refuses anything that looks like a full PAN), returns Visa/Mastercard/Amex/Discover/JCB/UnionPay/Maestro when the prefix is known. Not a live BIN registry lookup. | com.tr | - | $0.002 | listed |
| Cardano API Cardano (ADA) price in USD now, with 24h and 7d change — Genesis402 / UnyKorn Operator Network | unykorn.org | - | $0.001 | listed |
| Cardano Defi Overview API Cardano DeFi overview: TVL trend, top protocols, stablecoins, DEX volume, fees — Genesis402 / UnyKorn Operator Network | unykorn.org | - | $0.01 | listed |
| Carrier Analytics API What does the full FMCSA carrier census look like, carrier by carrier, with authority and safety context attached? Bulk analytics feed in USDOT order: legal/DBA name, operating status, authority statuses on file, active insurance filings, safety rating, SaferGrade score, 24-month SMS inspection/out-of-service/crash summaries, fleet size, and address — flat rows, cursor-paginated up to 1000/page, filterable by state, minimum fleet size, or census add date. | govparse.io | - | $25.00 | listed |
| Carriers API How big is the FMCSA carrier dataset right now? Headline aggregates: total and active registered carriers, how many have a SaferGrade score and the grade distribution, carriers with inspection/crash history, and the current national driver/vehicle out-of-service baseline rates. | govparse.io | - | $0.001 | listed |
| Case Camel API Call when an agent needs text rewritten with the camel case transform. No network and no LLM. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/case-camel first. | syntexa.ch | - | $0.005 | listed |
| Case Capitalize API Call when an agent needs text rewritten with the capitalize case transform. No network and no LLM. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/case-capitalize first. | syntexa.ch | - | $0.004 | listed |
| Case Cobol API Call when an agent needs text rewritten with the cobol case transform. No network and no LLM. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/case-cobol first. | syntexa.ch | - | $0.007 | listed |
| Case Constant API Call when an agent needs text rewritten with the constant case transform. No network and no LLM. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/case-constant first. | syntexa.ch | - | $0.009 | listed |
| Case Convert API Converts text between camelCase, snake_case, kebab-case, PascalCase, Title Case, and URL slugs. | dt0ur.online | - | $0.01 | listed |
| Case Dot API Call when an agent needs text rewritten with the dot case transform. No network and no LLM. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/case-dot first. | syntexa.ch | - | $0.001 | listed |
| Case Flat API Call when an agent needs text rewritten with the flat case transform. No network and no LLM. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/case-flat first. | syntexa.ch | - | $0.006 | listed |
| Case Kebab API Call when an agent needs text rewritten with the kebab case transform. No network and no LLM. Exact $0.008 USDC. Prefer unpaid POST /v1/sandbox/case-kebab first. | syntexa.ch | - | $0.008 | listed |
| Case Lower API Call when an agent needs text rewritten with the lower case transform. No network and no LLM. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/case-lower first. | syntexa.ch | - | $0.001 | listed |
| Case Pascal API Call when an agent needs text rewritten with the pascal case transform. No network and no LLM. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/case-pascal first. | syntexa.ch | - | $0.006 | listed |
| Case Path API Call when an agent needs text rewritten with the path case transform. No network and no LLM. Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/case-path first. | syntexa.ch | - | $0.002 | listed |
| Case Sentence API Call when an agent needs text rewritten with the sentence case transform. No network and no LLM. Exact $0.004 USDC. Prefer unpaid POST /v1/sandbox/case-sentence first. | syntexa.ch | - | $0.004 | listed |
| Case Snake API Call when an agent needs text rewritten with the snake case transform. No network and no LLM. Exact $0.007 USDC. Prefer unpaid POST /v1/sandbox/case-snake first. | syntexa.ch | - | $0.007 | listed |
| Case Sponge API Call when an agent needs text rewritten with the sponge case transform. No network and no LLM. Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/case-sponge first. | syntexa.ch | - | $0.005 | listed |
| Case Swap API Call when an agent needs text rewritten with the swap case transform. No network and no LLM. Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/case-swap first. | syntexa.ch | - | $0.003 | listed |
| Case Title API Call when an agent needs text rewritten with the title case transform. No network and no LLM. Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/case-title first. | syntexa.ch | - | $0.003 | listed |
| Case Train API Call when an agent needs text rewritten with the train case transform. No network and no LLM. Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/case-train first. | syntexa.ch | - | $0.01 | listed |
| Case Upper API Call when an agent needs text rewritten with the upper case transform. No network and no LLM. Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/case-upper first. | syntexa.ch | - | $0.002 | listed |
| Case conversion Split an identifier or phrase into words and render it in every common case — camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE, dot.case, path/case, Title Case and Sentence case. Handles acronyms (HTMLParser → html parser). | openverbs.com | - | $0.002 | listed |
| Cash cost to buy a target share count at price. Call when pre-trade cash check for prediction-market size targets. Returns total cost as deterministic JSON for $0.001 USDC via x402 on Base. First-part Cash cost to buy a target share count at price. Call when pre-trade cash check for prediction-market size targets. Returns total cost as deterministic JSON for $0.001 USDC via x402 on Base. First-party local math only—no RPC, live market feed, API keys, storage, or mediagen. Advisory only; the caller owns capital, risk, and production controls. | delx.ai | - | $0.001 | listed |
| Catalan number The n-th Catalan number Cₙ = C(2n, n)/(n+1), counting balanced bracketings, binary trees, and many other structures. Requires n ≤ 10000. | openverbs.com | - | $0.004 | listed |
| Cbam Factor API Selects and applies a supplied published CBAM default factor for a goods group. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; source-backed values disclose source, time window and age. This is neither legal advice nor customs advice. | halowerk.com | - | $0.004 | listed |
| Cbam Scope API Checks a CN-code prefix against a caller-supplied extract of the published CBAM goods list. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; source-backed values disclose source, time window and age. This is neither legal advice nor customs advice. | halowerk.com | - | $0.004 | listed |
| CelerAPI Search authoritative company registries by company name to resolve candidate legal entities and registration identifiers. Currently supports the United Kingdom (GB) and Norway (NO), with expanding jurisdiction coverage. Results are public-register evidence, not a KYC or KYB compliance determination. | celerapi.com | - | $0.005 | listed |
| Celestia API Celestia (TIA) price in USD now, with 24h and 7d change — Genesis402 / UnyKorn Operator Network | unykorn.org | - | $0.001 | listed |
| Celestial Result Compatibility API Compare two structured celestial result declarations using versioned rules. Reports mismatched conventions and missing prerequisites. No inferred settings, time/frame conversion, calculation verification or predictive validation. | mahastrategies.com | - | $0.007 | listed |
| Cert API Every currently valid TLS certificate publicly issued for one domain, read from the Certificate Transparency logs: issuer, validity window, days to expiry, revocation status and every hostname each certificate covers. It reports what was ISSUED, which is how you find certificates you did not know existed - not what the server is serving today. No API key, no account. | workers.dev | - | $0.005 | listed |
| Certified Extract API Certified extract: value + citation + archived-source sha256 + verification chain, Ed25519-signed. Refuses uncharged without evidence | mearef.dev | - | $0.25 | listed |
| Certified Extract API Certified extract: value + citation + archived-source sha256 + verification chain, Ed25519-signed. Refuses uncharged without evidence | afriref.dev | - | $0.25 | listed |
| Certified Extract API Certified extract: value + citation + archived-source sha256 + verification chain, Ed25519-signed. Refuses uncharged without evidence | asiaref.dev | - | $0.25 | listed |
| Certified Extract API Certified extract: value + citation + archived-source sha256 + verification chain, Ed25519-signed. Refuses uncharged without evidence | latamref.dev | - | $0.25 | listed |
| Certified Extract API Certified extract: value + citation + archived-source sha256 + verification chain, Ed25519-signed. Refuses uncharged without evidence | ausref.dev | - | $0.25 | listed |
| Certified Extract API Certified extract: value + citation + archived-source sha256 + verification chain, Ed25519-signed. Refuses uncharged without evidence | euroref.dev | - | $0.25 | listed |
| Cfdi API Verifies a Mexican electronic invoice (CFDI) with SAT (JSON body, not query params): status (vigente/cancelado), cancelability, and EFOS validation. Requires a real CFDI's UUID, issuer and receiver RFCs, and total; the example values are illustrative and return 404 (not charged). | run.app | - | $0.05 | listed |
| Cftc Commitments Of Traders API CFTC Commitments of Traders — weekly disaggregated futures positioning by commodity: managed-money long/short/net, producer-merchant, swap-dealer, and open interest. 20-year history, cleaned and canonicalized from the CFTC feed. Filter by metal (gold/silver/copper/platinum). | thevaultreport.com | - | $0.01 | listed |
| Chain Defi Overview In One Call API Chain DeFi overview in ONE call: TVL + trend, top protocols, stablecoins, DEX volume, fees — Genesis402 / UnyKorn Operator Network | unykorn.org | - | $0.01 | listed |