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Catalog

Every agent-payable API.

The companies you know, and thousands of endpoints your agent will discover. The catalog groups the network's 25,500+payable services under the companies that operate them — one company row can carry many service endpoints. Placement can't be bought.

All APIs

25,597 APIs
APICompanyCategoryPrice / callStatus
Saylor Innovations Guide Library
Debug a failing x402 payment as a buyer - decode the challenge, balance, expired signatures and safe retry
saylorinnovations.com-$0.01listed
Saylor Innovations Guide Library
Fix Postgres too many connections and pool exhaustion - pg_stat_activity, idle in transaction, timeouts and PgBouncer sizing
saylorinnovations.com-$0.01listed
Saylor Innovations Guide Library
Resolve Git merge conflicts safely - markers, ours vs theirs in rebase, zdiff3, lockfile and binary conflicts, abort, rerere and reflog recovery
saylorinnovations.com-$0.01listed
Saylor Innovations Guide Library
SQLite FTS5 search - phrase and prefix MATCH, bm25 ranking, snippets, syntax errors on user input and a safe quoting builder, stale index fix
saylorinnovations.com-$0.01listed
Saylor Innovations Guide Library
Debug CORS errors - reproduce preflight OPTIONS with Origin and Request-Headers in curl or Python, allow-list echo with Vary, credentials rules
saylorinnovations.com-$0.01listed
Saylor Innovations Guide Library
Find the breaking commit with git bisect - good/bad marking, git bisect run, exit code 125 skip, first-parent, reset, bug report evidence
saylorinnovations.com-$0.01listed
Saylor Innovations Guide Library
Parse JSON from LLM output - fenced blocks, prose, trailing commas, single quotes, truncation; raw_decode extractor and validate-then-retry
saylorinnovations.com-$0.01listed
Saylor Innovations Guide Library
Debug MCP server connection and tool-call failures - stdio transport, initialize handshake, tool schemas, isError results, inspector
saylorinnovations.com-$0.01listed
Saylor Innovations Guide Library
Fix SQLAlchemy DetachedInstanceError - session scope, selectinload eager loading, expire_on_commit, async MissingGreenlet, FastAPI session dependency
saylorinnovations.com-$0.01listed
Saylor Innovations Guide Library
Fix LLM context window overflow in long agent runs - token budgets, protected state and safe summarization
saylorinnovations.com-$0.01listed
Saylor Innovations Guide Library
Fix Pydantic v2 ValidationError - read loc and type, Optional needs default, strict vs lax, v1 to v2 renames, validators, BaseSettings move
saylorinnovations.com-$0.01listed
Saylor Innovations Guide Library
Diagnose Postgres deadlocks and lock waits - pg_blocking_pids, reading deadlock logs, lock ordering, SKIP LOCKED, lock_timeout and safe DDL
saylorinnovations.com-$0.01listed
Saylor Innovations Guide Library
Why Node exits - unhandled rejections, async throws, setTimeout errors escaping try/catch, EADDRINUSE, emitter error events, heap OOM
saylorinnovations.com-$0.01listed
Saylor Innovations Guide Library
Fix pandas MemoryError on big CSVs - usecols, dtype and category, chunked aggregation, Parquet conversion, DuckDB and Polars lazy scans
saylorinnovations.com-$0.01listed
Saylor Innovations Guide Library
Avoid date, time zone and DST bugs - store UTC instants and IANA zones, handle DST gaps and overlaps, date-only values and epoch units
saylorinnovations.com-$0.01listed
Saylor Innovations Guide Library
DNS lookups in Python with dnspython - A, MX, TXT, NS with TTLs, NXDOMAIN vs NoAnswer vs Timeout, propagation, SPF and DMARC records
saylorinnovations.com-$0.01listed
Saylor Innovations Guide Library
JavaScript numbers lose precision - 0.1+0.2, MAX_SAFE_INTEGER, JSON.parse rounding big IDs, BigInt, toFixed and money handling
saylorinnovations.com-$0.01listed
Saylor Innovations Guide Library
Stop an AI agent stuck in a tool-call loop - detect repeated calls, step and cost budgets, duplicate-call guards, error escalation
saylorinnovations.com-$0.01listed
Saylor Innovations Guide Library
Fix Stripe webhook signature verification failures - raw request body, endpoint secrets, timestamp tolerance, proxies and idempotent retries
saylorinnovations.com-$0.01listed
Saylor Innovations Guide Library
Migrate to a new embedding model safely - versioned columns, dual-write, backfill, offline evaluation, shadow traffic, cutover and rollback
saylorinnovations.com-$0.01listed
Saylor Innovations Guide Library
Design an API rate limiter - token bucket vs sliding window, identity keys, atomic Redis Lua, 429 with Retry-After, cost weighting and burst tests
saylorinnovations.com-$0.01listed
Saylor Innovations Guide Library
Fix Cloudflare 520, 521, 522, 523 and 524 errors - origin firewall, server down, wrong IP, SSL mode and the 100 second timeout
saylorinnovations.com-$0.01listed
Saylor Innovations Guide Library
Fix Node.js fetch failed errors - read error.cause, ECONNRESET, UND_ERR_CONNECT_TIMEOUT, IPv6 and DNS, keep-alive resets, proxies and TLS
saylorinnovations.com-$0.01listed
Saylor Innovations Guide Library
Node --env-file loading - quotes and comments parsing, shell variables override the file, process.env values are strings, validated config module
saylorinnovations.com-$0.01listed
Saylor Innovations Guide Library
Fix SQLite database is locked and SQLITE_BUSY - WAL mode, busy_timeout, short write transactions, BEGIN IMMEDIATE and single-writer design
saylorinnovations.com-$0.01listed
Saylor Innovations Guide Library
URL encoding cheat sheet - Python quote vs urlencode, JS encodeURIComponent vs URLSearchParams, + vs %20, parse_qs, base64url
saylorinnovations.com-$0.01listed
Saylor Innovations Guide Library
Fix a stuck pending EVM transaction - find the blocked nonce, speed up or cancel with a same-nonce higher-fee replacement, and clear wallet nonce drift
saylorinnovations.com-$0.01listed
Saylor Innovations Guide Library
ERC-20 approvals explained - check allowances, set exact amounts, revoke unlimited approvals, understand Permit signatures and spot drainer requests
saylorinnovations.com-$0.01listed
Saylor Innovations Guide Library
Debug a failing GitHub Actions workflow - triggers, YAML and expressions, permissions, secrets, cache and runner differences
saylorinnovations.com-$0.01listed
Saylor Innovations Guide Library
Find and fix a Node.js memory leak - tell leaks from normal GC, take heap snapshots, diff them, and fix caches, listeners, closures and timers
saylorinnovations.com-$0.01listed
Saylor Innovations Guide Library
Troubleshoot Cloudflare Tunnel - 1033 and 502 causes, ingress rules, Docker localhost trap, CNAME to cfargotunnel, token vs credentials
saylorinnovations.com-$0.01listed
Saylor Innovations Guide Library
Fix LLM streaming SSE parsing errors - buffer split chunks, handle [DONE], accumulate tool-call deltas and turn off proxy buffering
saylorinnovations.com-$0.01listed
Saylor Innovations Guide Library
Fix pandas merge surprises - duplicate keys multiply rows, validate one_to_one, indicator audits, int vs object key errors, NaN keys match
saylorinnovations.com-$0.01listed
Saylor Innovations Guide Library
Fix nginx 502 and 504 errors - error-log messages mapped to refused, timeout, socket and header causes
saylorinnovations.com-$0.01listed
Saylor Innovations Guide Library
Fix a systemd timer that never runs - list-timers, enable the .timer, systemd-analyze calendar, Persistent, service journal, environment gaps
saylorinnovations.com-$0.01listed
Saylor Innovations Guide Library
Retry HTTP calls safely in Python - exponential backoff, full jitter, urllib3 Retry, Retry-After, POST and idempotency keys
saylorinnovations.com-$0.01listed
Saylor Innovations Guide Library
Fix JavaScript async bugs - missing await, forEach with async, serial vs parallel awaits, Promise.all vs allSettled, unhandled rejections
saylorinnovations.com-$0.01listed
Saylor Innovations Guide Library
Diagnose high load on a Linux server - CPU, memory and swap, disk iowait, pressure stall info and the runaway process
saylorinnovations.com-$0.01listed
Saylor Innovations Guide Library
Pydantic models as LLM tool schemas - model_json_schema output, inline $defs refs, extra=forbid, error types to return, lax vs strict coercion
saylorinnovations.com-$0.01listed
Saylor Innovations Guide Library
Fix CERTIFICATE_VERIFY_FAILED in requests, curl and Node - trust the CA with verify= or --cacert, SAN mismatches, why -k is unsafe
saylorinnovations.com-$0.01listed
Saylor Innovations Guide Library
Node worker_threads for CPU work - blocked event loop gives 0 ticks, 4 parallel workers in 1.4x single time, worker error events, when not to use threads
saylorinnovations.com-$0.01listed
Saylor Innovations Guide Library
Fix Prisma Migrate errors - drift, shadow database P3006, failed migration P3009 resolve, baselining an existing DB, dev vs deploy, directUrl
saylorinnovations.com-$0.01listed
Saylor Innovations Guide Library
Fix Docker Compose networking - shared networks, service-name DNS, container vs published ports, 0.0.0.0 binding and health-check startup order
saylorinnovations.com-$0.01listed
Saylor Innovations Guide Library
GNU date recipes - epoch conversion, +1 month overflow from Jan 31, TZ= prefix, rejected zone names and DST gap, day differences
saylorinnovations.com-$0.01listed
Saylor Innovations Guide Library
Fix pandas SettingWithCopyWarning - use .loc for updates, .copy() after filtering, chained assignment and Copy-on-Write in pandas 3
saylorinnovations.com-$0.01listed
Saylor Innovations Guide Library
Fix ERR_TOO_MANY_REDIRECTS loops - trace the chain with curl, X-Forwarded-Proto behind proxies, Cloudflare Flexible SSL and www/apex conflicts
saylorinnovations.com-$0.01listed
Saylor Innovations Guide Library
Use HTTP conditional requests - ETag and If-None-Match returning 304 with empty body, Last-Modified, Cache-Control max-age, If-Match 412
saylorinnovations.com-$0.01listed
Saylor Innovations Guide Library
Troubleshoot Kafka consumer lag and rebalances - partition parallelism, max.poll.interval.ms, heartbeats, poison messages, offset commits and skew
saylorinnovations.com-$0.01listed
Saylor Innovations Guide Library
Decode FastAPI 422 errors - loc/type payloads for body, query, header, HTTPException 401/404, async def time.sleep blocking measured
saylorinnovations.com-$0.01listed
Saylor Innovations Guide Library
Fix strict TypeScript errors - TS18046 unknown, TS2339 unions, TS2540 as const, TS2353 excess props, TS18048 index access, never exhaustiveness
saylorinnovations.com-$0.01listed
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