Explore APIs

Every pay-per-call x402 API we can find, ranked by what agents actually pay for. No accounts, no API keys.

Projects: 4.4K
Paid endpoints: 87K
Paid calls · 30 days: 885K
Launched here: 0

AI & agents

524 results

Most used Rising Most payers Newest Cheapest A–Z

S
sorenlux.aiAI & agents
No description yet.
Basesorenlux.ai
from $0.03
2 endpoints
0
calls / 30d
S
slinging-chloride-chair.ngrok-free.devAI & agents
AI infra claim verification — pay-per-query.
Baseslinging-chloride-chair.ngrok-free.dev
from $1.00
1 endpoint
0
calls / 30d
S
slamlink-ai-main-50fbb45.d2.zuplo.devAI & agents
No description yet.
Baseslamlink-ai-main-50fbb45.d2.zuplo.dev
from $0.0062
1 endpoint
0
calls / 30d
S
sentinel-agent.devAI & agents
No description yet.
Basesentinel-agent.dev
from $0.005
1 endpoint
0
calls / 30d
S
sentinel-agent-wru6.onrender.comAI & agents
No description yet.
Basesentinel-agent-wru6.onrender.com
from $0.005
1 endpoint
0
calls / 30d
S
scriptdocs-mcp.onrender.comAI & agents
ScriptDocs paid MCP tool call (docs_check_vulnerabilities, docs_get_readme): $0.009 USDC per call via x402 v2 exact on Base.
Basescriptdocs-mcp.onrender.com
from $0.009
1 endpoint
0
calls / 30d
R
route-verdictAI & agents
Send any x402 resource URL, get a trust verdict on the endpoint itself. Returns TRUSTED / CAUTION / AVOID with a 0-100 score from an observation-only live probe (never pays the target): payment terms, Bazaar discovery-schema quality, CDP Bazaar and PayAI catalog presence, plus a diff against the previous check. Use this when an agent is about to pay an unfamiliar x402 endpoint and needs to know it
Baseroute-verdict-production.up.railway.app
from $0.05
2 endpoints
0
calls / 30d
RedRobotRouges IAAI & agents
OpenAI-compatible chat completions (local GPU, Quebec/CA)
Baseredrobotrouges.ca
from $0.001
1 endpoint
0
calls / 30d
T
TaskForge Agent AssuranceAI & agents
Deterministically compare caller-supplied content with a caller-supplied SHA-256 digest. Integrity comparison only; no identity, provenance, or security guarantee.
Baseqaegxjxaavxdqihfgzhr.supabase.co
from $0.01
3 endpoints
0
calls / 30d
P
project-zero-agent-api.jordy-prods.workers.devAI & agents
Preflight untrusted text for common prompt-injection, credential-exfiltration, and tool-abuse patterns. Deterministic heuristic scan; not a guarantee of safety.
Baseproject-zero-agent-api.jordy-prods.workers.dev
from $0.002
1 endpoint
0
calls / 30d
P
Prime-Agent x402 IntelligenceAI & agents
Canonical-at-read-time Base mainnet block status with block hash provenance.
Baseprime-agent-x402-intelligence.onrender.com
from $0.001
1 endpoint
0
calls / 30d
P
preflightAI & agents
A2A, MCP & HTTP 402 Endpoint SLA Compliance Auditor (/v1/x402-audit) — Audits any remote agent or MCP URL for JSON-RPC compliance, latency SLA, OpenAPI schema, and HTTP 402 settlement headers. (https://preflight.agentdiet.dev/v1/preflight/certify)
Basepreflight.agentdiet.dev
from Free
1 endpoint
0
calls / 30d
P
postyourprice.comAI & agents
Prepaid inference credits for the unmodified Conway automaton runtime: SIWE provisioning, USDC topups on Base, inference billed at purchase cost plus a fixed markup
Basepostyourprice.com
from $5.00
1 endpoint
0
calls / 30d
P
perps-funding-agent-production.up.railway.appAI & agents
No description yet.
Baseperps-funding-agent-production.up.railway.app
from $0.10
2 endpoints
0
calls / 30d
P
percall.kimi.proAI & agents
[PerCall] COMPUTED — not raw data. Cross-pair momentum score (-100 to +100) with regime label for the top 10 USDT pairs, computed from 7 days of hourly closes. Includes 24h/7d rate-of-change, realised volatility, and a composite ranking. Designed for pre-trade agent checks.
Basepercall.kimi.pro
from $0.01
1 endpoint
0
calls / 30d
P
Penniless JSON RepairAI & agents
Repairs malformed LLM JSON: strips Markdown fences and prose wrappers, fixes trailing commas, converts Python literals (True/False/None) and single/unquoted keys, removes comments, recovers balanced JSON from truncated output. Body {input} -> {ok, repaired, applied}.
Basepenniless-json-repair.sjaman.workers.dev
from $0.001
1 endpoint
0
calls / 30d
P
payne-machine-revenue-mcp.apayne1987.workers.devAI & agents
Return the latest Base mainnet block number from a bounded public RPC fallback set.
Basepayne-machine-revenue-mcp.apayne1987.workers.dev
from $0.001
1 endpoint
0
calls / 30d
ENI Data FeedAI & agents
Basic data feed - 1 request
Basepayai-eni-x402.systempayroll880.workers.dev
from $0.001
7 endpoints
0
calls / 30d
O
OmniProviderAI & agents
Pay-per-call cited research brief. The request carries a query and 1 to 12 quotes with source URLs; the response is a short brief that cites only those quotes, at 0.008 USDC per call on Base. Payment settles after the brief is produced. A client nonce header makes a retry free of a second charge.
Basepay.omnidev.tech
from $0.006
3 endpoints
0
calls / 30d
P
pay.codenut.aiAI & agents
No description yet.
Basepay.codenut.ai
from $0.01
3 endpoints
0
calls / 30d
S
SEC Recent Filings x402AI & agents
Find and rank Pennsylvania legal-entity candidates when an agent needs to identify which registered business matches a submitted company name.
Basepa-entity-x402.floot.app
from $0.001
4 endpoints
0
calls / 30d
O
ox-alpha-serviceAI & agents
Ping del servizio: restituisce stato servizio, timestamp e identificatore. Endpoint di prova del primo micro-servizio x402.
Baseoxalpha-x402.val.run
from $0.001
1 endpoint
0
calls / 30d
O
OrbitwrenAI & agents
Orbitwren: Orbital data centers and space AI compute tracker: every orbital data center project (company, hardware, launch, status, sources), launches, orbits, changes and alerts.
Baseorbitwren.cybermaxtools.com
from $0.003
1 endpoint
0
calls / 30d
O
OrbitwrenAI & agents
Orbitwren: Orbital data centers and space AI compute tracker: every orbital data center project (company, hardware, launch, status, sources), launches, orbits, changes and alerts.
Baseorbitwren.cybermax-tools.workers.dev
from $0.003
1 endpoint
0
calls / 30d
O
onlinewebdirectory.netAI & agents
How a website treats AI agents, checked now if needed: bot wall, JavaScript, robots rules, llms.txt or feed, and the fetch strategy to use. Charged only when there is an answer.
Baseonlinewebdirectory.net
from $0.01
1 endpoint
0
calls / 30d
O
Open Horizon Machine RevenueAI & agents
Micropayment one-page preflight for agents: HTTP/SEO/security evidence with BUY/REVIEW/SKIP verdict before deeper due diligence.
Baseohd-machine-x402-v2.hibiki3027.workers.dev
from $0.05
1 endpoint
0
calls / 30d
MoneylabAI & agents
Full text and metadata for every published Moneylab post in one request, structured as JSON.
Basemoney-lab.app
from $0.01
5 endpoints
0
calls / 30d
M
mondoir.artAI & agents
Pay an owned Mondoir catalogue quote in native USDC, including shipping and applicable VAT. Agent bearer authentication and a fresh quote are required.
Basemondoir.art
from $1.05
1 endpoint
0
calls / 30d
M
MNEMOS by ScriptMasterLabsAI & agents
MNEMOS 25-delta volatility smile for one symbol
Basemnemos-agent.onrender.com
from $0.001
9 endpoints
0
calls / 30d
M
minara.aiAI & agents
No description yet.
Baseminara.ai
from $0.20
1 endpoint
0
calls / 30d

Service data comes from the Coinbase CDP and PayAI discovery lists and refreshes every few hours. Usage is paid calls over the last 30 days. APIs launched here are verified by us; the rest are paid directly to their owners.